From 48e524d7135bff2a32759a642c9aa7298a881e31 Mon Sep 17 00:00:00 2001
From: pansen <pansen626@sina.com>
Date: 星期一, 28 一月 2019 21:22:21 +0800
Subject: [PATCH] # Type(<scope>): <subject>

---
 aBuild/nng/include/nng/compat/nanomsg/pipeline.h     |   34 
 aBuild/nng/include/nng/compat/nanomsg/ws.h           |   41 
 aBuild/nng/include/nng/protocol/survey0/respond.h    |   33 
 aBuild/nng/include/nng/compat/nanomsg/bus.h          |   33 
 .gitignore                                           |    4 
 aBuild/nng/include/nng/nng.h                         |  980 ++++++++++++++++
 aBuild/nng/bin/nngcat                                |    0 
 aBuild/nng/include/nng/compat/nanomsg/inproc.h       |   31 
 aBuild/nng/include/nng/compat/nanomsg/ipc.h          |   39 
 aBuild/nng/include/nng/transport/tls/tls.h           |   18 
 aBuild/nng/lib/libnng.so.1.1.0                       |    0 
 aBuild/nng/include/nng/supplemental/tcp/tcp.h        |  154 ++
 aBuild/nng/include/nng/supplemental/util/options.h   |   48 
 aBuild/nng/include/nng/transport/ws/websocket.h      |   32 
 aBuild/nng/include/nng/protocol/pair0/pair.h         |   34 
 aBuild/nng/include/nng/protocol/pubsub0/sub.h        |   37 
 aBuild/nng/include/nng/compat/nanomsg/pair.h         |   39 
 aBuild/nng/include/nng/protocol/bus0/bus.h           |   34 
 aBuild/nng/include/nng/protocol/survey0/survey.h     |   35 
 aBuild/nng/include/nng/transport/zerotier/zerotier.h |  149 ++
 aBuild/nng/include/nng/protocol/pair1/pair.h         |   35 
 aBuild/nng/include/nng/supplemental/http/http.h      |  528 ++++++++
 aBuild/nng/lib/libnng.a                              |    0 
 aBuild/nng/include/nng/compat/nanomsg/tcp.h          |   33 
 aBuild/nng/lib/cmake/nng/nng-config.cmake            |   50 
 aBuild/nng/include/nng/protocol/reqrep0/req.h        |   34 
 aBuild/nng/include/nng/protocol/reqrep0/rep.h        |   33 
 aBuild/nng/include/nng/compat/nanomsg/pubsub.h       |   36 
 aBuild/nng/include/nng/supplemental/ipc/ipc.h        |  133 ++
 aBuild/nng/include/nng/compat/nanomsg/reqrep.h       |   35 
 aBuild/nng/include/nng/supplemental/util/platform.h  |  106 +
 aBuild/nng/include/nng/protocol/pipeline0/pull.h     |   33 
 aBuild/nng/include/nng/transport/tcp/tcp.h           |   18 
 aBuild/nng/include/nng/transport/ipc/ipc.h           |   19 
 nng                                                  |    2 
 aBuild/nng/include/nng/compat/nanomsg/survey.h       |   36 
 aBuild/nng/include/nng/transport/inproc/inproc.h     |   18 
 README.md                                            |   22 
 aBuild/nng/include/nng/protocol/pipeline0/push.h     |   33 
 aBuild/nng/lib/cmake/nng/nng-targets.cmake           |   88 +
 aBuild/nng/include/nng/protocol/pubsub0/pub.h        |   33 
 aBuild/nng/include/nng/supplemental/tls/tls.h        |  180 ++
 aBuild/nng/include/nng/compat/nanomsg/nn.h           |  284 ++++
 aBuild/nng/lib/cmake/nng/nng-config-version.cmake    |   46 
 aBuild/nng/lib/cmake/nng/nng-targets-noconfig.cmake  |   19 
 45 files changed, 3,626 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 0def275..b90b7ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,14 +5,14 @@
 *.obj
 
 # Compiled Dynamic libraries
-*.so
+#*.so
 *.dylib
 *.dll
 
 # Compiled Static libraries
 *.lai
 *.la
-*.a
+#*.a
 *.lib
 
 # Executables
diff --git a/README.md b/README.md
index 5764789..1f3b1f5 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,25 @@
 
 Git涓婄殑寮�婧愪唬鐮�
 
+
+
+---
+#### 鎸囧畾瀹夎鐩綍
+
+* cmake
+    > cmake CMakeList.txt -DCMAKE_INSTALL_PREFIX=dir
+    > 
+    > cmake ../ -DCMAKE_INSTALL_PREFIX=dir
+    
+* configure
+    > ./configure prefix==dir
+    
+---
+#### 缂栬瘧鍛戒护
+
+* 缂栬瘧    
+    > make -j
+* 瀹夎    
+    > make install
+    
+    
\ No newline at end of file
diff --git a/aBuild/nng/bin/nngcat b/aBuild/nng/bin/nngcat
new file mode 100644
index 0000000..867ed97
--- /dev/null
+++ b/aBuild/nng/bin/nngcat
Binary files differ
diff --git a/aBuild/nng/include/nng/compat/nanomsg/bus.h b/aBuild/nng/include/nng/compat/nanomsg/bus.h
new file mode 100644
index 0000000..004a9ac
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/bus.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_BUS_H
+#define NNG_COMPAT_BUS_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// BUS sockopt level.
+#define NN_PROTO_BUS 7
+#define NN_BUS (NN_PROTO_BUS * 16 + 0)
+
+// BUS has no options.
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_BUS_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/inproc.h b/aBuild/nng/include/nng/compat/nanomsg/inproc.h
new file mode 100644
index 0000000..9c71a1e
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/inproc.h
@@ -0,0 +1,31 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_INPROC_H
+#define NNG_COMPAT_INPROC_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// inproc sockopt level.
+// There are no inproc tunables.
+#define NN_INPROC (-1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_INPROC_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/ipc.h b/aBuild/nng/include/nng/compat/nanomsg/ipc.h
new file mode 100644
index 0000000..c935b50
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/ipc.h
@@ -0,0 +1,39 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_IPC_H
+#define NNG_COMPAT_IPC_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// IPC sockopt level.
+#define NN_IPC (-2)
+
+// IPC options.  Note that these are not currently supported.
+// IPC_SEC_ATTR works quite differently in NNG, and must be
+// configured using the new API.  The buffer sizing options are
+// not supported at all.  None of these were ever documente, and
+// are offered here only for source compatibility.
+#define NN_IPC_SEC_ATTR 1
+#define NN_IPC_OUTBUFSZ 2
+#define NN_IPC_INBUFSZ 3
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_IPC_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/nn.h b/aBuild/nng/include/nng/compat/nanomsg/nn.h
new file mode 100644
index 0000000..6343172
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/nn.h
@@ -0,0 +1,284 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_NN_H
+#define NNG_COMPAT_NN_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+// Note that compatibility promises are limited to public portions of the
+// nanomsg API, and specifically do NOT extend to the ABI.  Furthermore,
+// there may be other limitations around less commonly used portions of the
+// API; for example only SP headers may be transported in control data for
+// messages, there is almost no compatibility offered for statistics.
+// Error values may differ from those returned by nanomsg as well; the nng
+// error reporting facility expresses only a subset of the possibilities of
+// nanomsg.
+
+// Note that unlinke nanomsg, nng does not aggressively recycle socket or
+// endpoint IDs, which means applications which made assumptions that these
+// would be relatively small integers (e.g. to use them as array indices)
+// may break.  (No promise about values was ever made.)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+
+// clang-format gets in the way of most of this file.
+// We turn it off, at least until it gets smarter about aligning
+// macro definitions or we adopt enums or somesuch.
+// clang-format off
+
+// NNG_DECL is used on declarations to deal with scope.
+// For building Windows DLLs, it should be the appropriate __declspec().
+// For shared libraries with platforms that support hidden visibility,
+// it should evaluate to __attribute__((visibility("default"))).
+#ifndef NN_DECL
+#if defined(_WIN32) && !defined(NNG_STATIC_LIB)
+#if defined(NNG_SHARED_LIB)
+#define NN_DECL		__declspec(dllexport)
+#else
+#define NN_DECL		__declspec(dllimport)
+#endif // NNG_SHARED_LIB
+#else
+#if defined(NNG_SHARED_LIB) && defined(NNG_HIDDEN_VISIBILITY)
+#define NN_DECL __attribute__((visibility("default")))
+#else
+#define NN_DECL extern
+#endif
+#endif // _WIN32 && !NNG_STATIC_LIB
+#endif  // NN_DECL
+
+#define AF_SP			1
+#define AF_SP_RAW		2
+
+#define NN_SOCKADDR_MAX		128
+#define NN_SOL_SOCKET		0
+
+// Flag for send/recv (nonblocking)
+#define NN_DONTWAIT		1
+
+// CMSG data type
+#define PROTO_SP		1
+#define SP_HDR			1
+
+// Errnos.  Legacy nanomsg uses posix errnos where possible.
+// If a define is not set, use add NN_ERRBASE.  nng does not
+// return all of these values, so there may be some loss of
+// of information for edge cases, but we don't expect that to be
+// a problem really.
+#define NN_ERRBASE		(0x10000000)
+#ifndef ENOTSUP
+#define ENOTSUP			(NN_ERRBASE+1)
+#endif
+#ifndef EPROTONOSUPPORT
+#define EPROTONOSUPPORT		(NN_ERRBASE+2)
+#endif
+#ifndef ENOBUFS
+#define ENOBUFS			(NN_ERRBASE+3)
+#endif
+#ifndef ENETDOWN
+#define ENETDOWN		(NN_ERRBASE+4)
+#endif
+#ifndef EADDRINUSE
+#define EADDRINUSE		(NN_ERRBASE+5)
+#endif
+#ifndef EADDRNOTAVAIL
+#define EADDRNOTAVAIL		(NN_ERRBASE+6)
+#endif
+#ifndef ENOTSOCK
+#define ENOTSOCK		(NN_ERRBASE+7)
+#endif
+#ifndef EAGAIN
+#define EAGAIN			(NN_ERRBASE+8)
+#endif
+#ifndef EBADF
+#define EBADF			(NN_ERRBASE+9)
+#endif
+#ifndef EINVAL
+#define EINVAL			(NN_ERRBASE+10)
+#endif
+#ifndef EMFILE
+#define EMFILE			(NN_ERRBASE+11)
+#endif
+#ifndef EFAULT
+#define EFAULT			(NN_ERRBASE+12)
+#endif
+#ifndef EACCES
+#define EACCES			(NN_ERRBASE+13)
+#endif
+#ifndef ENETRESET
+#define ENETRESET		(NN_ERRBASE+14)
+#endif
+#ifndef ENETUNREACH
+#define ENETUNREACH		(NN_ERRBASE+15)
+#endif
+#ifndef EHOSTUNREACH
+#define EHOSTUNREACH		(NN_ERRBASE+16)
+#endif
+#ifndef EAFNOSUPPORT
+#define EAFNOSUPPORT		(NN_ERRBASE+17)
+#endif
+#ifndef EINPROGRESS
+#define EINPROGRESS		(NN_ERRBASE+18)
+#endif
+#ifndef EPROTO
+#define EPROTO			(NN_ERRBASE+19)
+#endif
+#ifndef ECONNREFUSED
+#define ECONNREFUSED		(NN_ERRBASE+20)
+#endif
+#ifndef ENOTCONN
+#define ENOTCONN		(NN_ERRBASE+21)
+#endif
+#ifndef EMSGSIZE
+#define EMSGSIZE		(NN_ERRBASE+22)
+#endif
+#ifndef ETIMEDOUT
+#define ETIMEDOUT		(NN_ERRBASE+23)
+#endif
+#ifndef ECONNABORTED
+#define ECONNABORTED		(NN_ERRBASE+24)
+#endif
+#ifndef ECONNRESET
+#define ECONNRESET		(NN_ERRBASE+25)
+#endif
+#ifndef ENOPROTOOPT
+#define ENOPROTOOPT		(NN_ERRBASE+26)
+#endif
+#ifndef EISCONN
+#define EISCONN			(NN_ERRBASE+27)
+#endif
+#ifndef ESOCKNOSUPPORT
+#define ESOCKNOSPPORT		(NN_ERRBASE+28)
+#endif
+#ifndef ETERM
+#define ETERM			(NN_ERRBASE+29)
+#endif
+#ifndef EFSM
+#define EFSM			(NN_ERRBASE+30)
+#endif
+#ifndef ENOENT
+#define ENOENT			(NN_ERRBASE+31)
+#endif
+#ifndef EIO
+#define EIO			(NN_ERRBASE+32)
+#endif
+#ifndef EEXIST
+#define EEXIST			(NN_ERRBASE+33)
+#endif
+#ifndef ENOSPC
+#define ENOSPC			(NN_ERRBASE+34)
+#endif
+
+
+// Socket options
+#define NN_LINGER		1
+#define NN_SNDBUF		2
+#define NN_RCVBUF		3
+#define NN_SNDTIMEO		4
+#define NN_RCVTIMEO		5
+#define NN_RECONNECT_IVL	6
+#define NN_RECONNECT_IVL_MAX	7
+#define NN_SNDPRIO		8
+#define NN_RCVPRIO		9
+#define NN_SNDFD		10
+#define NN_RCVFD		11
+#define NN_DOMAIN		12
+#define NN_PROTOCOL		13
+#define NN_IPV4ONLY		14
+#define NN_SOCKET_NAME		15
+#define NN_RCVMAXSIZE		16
+#define NN_MAXTTL		17
+
+// from this point on formatting is fine
+// clang-format on
+
+// Poll stuff
+#define NN_POLLIN 1
+#define NN_POLLOUT 2
+struct nn_pollfd {
+	int      fd;
+	uint16_t events;
+	uint16_t revents;
+};
+
+// Magical size for allocation
+#define NN_MSG ((size_t) -1)
+
+struct nn_iovec {
+	void * iov_base;
+	size_t iov_len;
+};
+
+struct nn_msghdr {
+	struct nn_iovec *msg_iov;
+	int              msg_iovlen;
+	void *           msg_control;
+	size_t           msg_controllen;
+};
+
+struct nn_cmsghdr {
+	size_t cmsg_len;
+	int    cmsg_level;
+	int    cmsg_type;
+};
+
+#define NN_CMSG_ALIGN(len) \
+	(((len) + sizeof(size_t) - 1) & (size_t) ~(sizeof(size_t) - 1))
+
+// Unlike old nanomsg, we explicitly only support the SP header as attached
+// cmsg data.  It turns out that old nanomsg didn't really store anything
+// useful otherwise anyway.  (One specific exception was that it stored the
+// message type of text or binary for the websocket transport.  We don't think
+// anyone used that in practice though.)
+#define NN_CMSG_FIRSTHDR(mh) nn_cmsg_next((struct nn_msghdr *) (mh), NULL)
+#define NN_CMSG_NXTHDR(mh, ch) \
+	nn_cmsg_next((struct nn_msghdr *) (mh), (struct nn_cmsghdr *) ch)
+#define NN_CMSG_DATA(ch) ((unsigned char *) (((struct nn_cmsghdr *) (ch)) + 1))
+#define NN_CMSG_SPACE(len) \
+	(NN_CMSG_ALIGN(len) + NN_CMSG_ALIGN(sizeof(struct nn_cmsghdr)))
+#define NN_CMSG_LEN(len) (NN_CMSG_ALIGN(sizeof(struct nn_cmsghdr)) + (len))
+
+NN_DECL struct nn_cmsghdr *nn_cmsg_next(
+    struct nn_msghdr *, struct nn_cmsghdr *);
+NN_DECL int nn_socket(int, int);
+NN_DECL int nn_setsockopt(int, int, int, const void *, size_t);
+NN_DECL int nn_getsockopt(int, int, int, void *, size_t *);
+NN_DECL int nn_bind(int, const char *);
+NN_DECL int nn_connect(int, const char *);
+NN_DECL int nn_shutdown(int, int);
+NN_DECL int nn_send(int, const void *, size_t, int);
+NN_DECL int nn_recv(int, void *, size_t, int);
+NN_DECL int nn_sendmsg(int, const struct nn_msghdr *, int);
+NN_DECL int nn_recvmsg(int, struct nn_msghdr *, int);
+NN_DECL int nn_close(int);
+NN_DECL int nn_poll(struct nn_pollfd *, int, int);
+NN_DECL int nn_device(int, int);
+NN_DECL uint64_t    nn_get_statistic(int, int);
+NN_DECL void *      nn_allocmsg(size_t, int);
+NN_DECL void *      nn_reallocmsg(void *, size_t);
+NN_DECL int         nn_freemsg(void *);
+NN_DECL int         nn_errno(void);
+NN_DECL const char *nn_strerror(int);
+NN_DECL void        nn_term(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_NN_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/pair.h b/aBuild/nng/include/nng/compat/nanomsg/pair.h
new file mode 100644
index 0000000..458aac8
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/pair.h
@@ -0,0 +1,39 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_PAIR_H
+#define NNG_COMPAT_PAIR_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// PAIR sockopt level.
+#define NN_PROTO_PAIR 1
+#define NN_PAIR (NN_PROTO_PAIR * 16 + 0)
+
+// These are technically "new", and not available in nanomsg, but
+// offered here as a transition aid.  If you want to use the advanced
+// PAIRv1 options (POLYAMOROUS mode) you still need to use the new API.
+#define NN_PAIR_v0 (NN_PROTO_PAIR * 16 + 0)
+#define NN_PAIR_V1 (NN_PROTO_PAIR * 16 + 1)
+
+// PAIR has no options.
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_PAIR_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/pipeline.h b/aBuild/nng/include/nng/compat/nanomsg/pipeline.h
new file mode 100644
index 0000000..187a4b4
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/pipeline.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_PIPELINE_H
+#define NNG_COMPAT_PIPELINE_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// PUSH and PULL sockopt level.
+#define NN_PROTO_PIPELINE 5
+#define NN_PUSH (NN_PROTO_PIPELINE * 16 + 0)
+#define NN_PULL (NN_PROTO_PIPELINE * 16 + 1)
+
+// PUSH and PULL have no options.
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_PIPELINE_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/pubsub.h b/aBuild/nng/include/nng/compat/nanomsg/pubsub.h
new file mode 100644
index 0000000..43118f6
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/pubsub.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_PUBSUB_H
+#define NNG_COMPAT_PUBSUB_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// PUB and SUB sockopt level.
+#define NN_PROTO_PUBSUB 2
+#define NN_PUB (NN_PROTO_PUBSUB * 16 + 0)
+#define NN_SUB (NN_PROTO_PUBSUB * 16 + 1)
+
+// SUB options.  (PUB has none.)
+#define NN_SUB_SUBSCRIBE (NN_SUB * 16 + 1)
+#define NN_SUB_UNSUBSCRIBE (NN_SUB * 16 + 2)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_PUBSUB_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/reqrep.h b/aBuild/nng/include/nng/compat/nanomsg/reqrep.h
new file mode 100644
index 0000000..9490a8f
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/reqrep.h
@@ -0,0 +1,35 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_REQREP_H
+#define NNG_COMPAT_REQREP_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// REQ and REP sockopt level.
+#define NN_PROTO_REQREP 3
+#define NN_REQ (NN_PROTO_REQREP * 16 + 0)
+#define NN_REP (NN_PROTO_REQREP * 16 + 1)
+
+// REQ options.  (REP has none.)
+#define NN_REQ_RESEND_IVL (NN_REQ * 16 + 1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_REQREP_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/survey.h b/aBuild/nng/include/nng/compat/nanomsg/survey.h
new file mode 100644
index 0000000..fdef10c
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/survey.h
@@ -0,0 +1,36 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_SURVEY_H
+#define NNG_COMPAT_SURVEY_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// SURVEYOR and RESPONDENT sockopt level.
+#define NN_PROTO_SURVEY 6
+#define NN_SURVEYOR (NN_PROTO_SURVEY * 16 + 2)
+#define NN_RESPONDENT (NN_PROTO_SURVEY * 16 + 3)
+
+// SURVEYOR options.  (RESPONDENT has none.)
+
+#define NN_SURVEYOR_DEADLINE (NN_SURVEYOR * 16 + 1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_SURVEY_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/tcp.h b/aBuild/nng/include/nng/compat/nanomsg/tcp.h
new file mode 100644
index 0000000..5a305c4
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/tcp.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_TCP_H
+#define NNG_COMPAT_TCP_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// TCP sockopt level.
+#define NN_TCP (-3)
+
+// TCP options.
+#define NN_TCP_NODELAY 1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_TCP_H
diff --git a/aBuild/nng/include/nng/compat/nanomsg/ws.h b/aBuild/nng/include/nng/compat/nanomsg/ws.h
new file mode 100644
index 0000000..3072a3b
--- /dev/null
+++ b/aBuild/nng/include/nng/compat/nanomsg/ws.h
@@ -0,0 +1,41 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_COMPAT_WS_H
+#define NNG_COMPAT_WS_H
+
+// This header contains interfaces that are intended to offer compatibility
+// with nanomsg v1.0.  These are not the "preferred" interfaces for nng,
+// and consumers should only use these if they are porting software that
+// previously used nanomsg.  New programs should use the nng native APIs.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// WS sockopt level.
+#define NN_WS (-4)
+
+// WS options.
+
+// Note that while legacy libnanomsg had *some* support for text messages,
+// NNG only supports binary.  Binary types are required to pass protocol
+// headers with NNG and nanomsg in any event.  This means that the NNG
+// WebSocket support will not be compatible with some very old browsers.
+#define NN_WS_MSG_TYPE 1
+
+#define NN_WS_MSG_TYPE_TEXT 0x1
+#define NN_WS_MSG_TYPE_BINARY 0x2
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_COMPAT_WS_H
diff --git a/aBuild/nng/include/nng/nng.h b/aBuild/nng/include/nng/nng.h
new file mode 100644
index 0000000..3063a65
--- /dev/null
+++ b/aBuild/nng/include/nng/nng.h
@@ -0,0 +1,980 @@
+//
+// Copyright 2019 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_H
+#define NNG_H
+
+// NNG (nanomsg-next-gen) is an improved implementation of the SP protocols.
+// The APIs have changed, and there is no attempt to provide API compatibility
+// with legacy libnanomsg. This file defines the library consumer-facing
+// Public API. Use of definitions or declarations not found in this header
+// file is specfically unsupported and strongly discouraged.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+// NNG_DECL is used on declarations to deal with scope.
+// For building Windows DLLs, it should be the appropriate __declspec().
+// For shared libraries with platforms that support hidden visibility,
+// it should evaluate to __attribute__((visibility("default"))).
+#ifndef NNG_DECL
+#if defined(_WIN32) && !defined(NNG_STATIC_LIB)
+#if defined(NNG_SHARED_LIB)
+#define NNG_DECL __declspec(dllexport)
+#else
+#define NNG_DECL __declspec(dllimport)
+#endif // NNG_SHARED_LIB
+#else
+#if defined(NNG_SHARED_LIB) && defined(NNG_HIDDEN_VISIBILITY)
+#define NNG_DECL __attribute__((visibility("default")))
+#else
+#define NNG_DECL extern
+#endif
+#endif // _WIN32 && !NNG_STATIC_LIB
+#endif // NNG_DECL
+
+// NNG Library & API version.
+// We use SemVer, and these versions are about the API, and
+// may not necessarily match the ABI versions. Right now at
+// version 0, you should not be making any forward compatibility
+// assumptions.
+#define NNG_MAJOR_VERSION 1
+#define NNG_MINOR_VERSION 1
+#define NNG_PATCH_VERSION 1
+#define NNG_RELEASE_SUFFIX "" // if non-empty, this is a pre-release
+
+// Maximum length of a socket address. This includes the terminating NUL.
+// This limit is built into other implementations, so do not change it.
+// Note that some transports are quite happy to let you use addresses
+// in excess of this, but if you do you may not be able to communicate
+// with other implementations.
+#define NNG_MAXADDRLEN (128)
+
+// Types common to nng.
+
+// Identifiers are wrapped in a structure to improve compiler validation
+// of incorrect passing.  This gives us strong type checking.  Modern
+// compilers compile passing these by value to identical code as passing
+// the integer type (at least with optimization applied).  Please do not
+// access the ID member directly.
+
+typedef struct nng_ctx_s {
+	uint32_t id;
+} nng_ctx;
+
+typedef struct nng_dialer_s {
+	uint32_t id;
+} nng_dialer;
+
+typedef struct nng_listener_s {
+	uint32_t id;
+} nng_listener;
+
+typedef struct nng_pipe_s {
+	uint32_t id;
+} nng_pipe;
+
+typedef struct nng_socket_s {
+	uint32_t id;
+} nng_socket;
+
+typedef int32_t         nng_duration; // in milliseconds
+typedef struct nng_msg  nng_msg;
+typedef struct nng_stat nng_stat;
+typedef struct nng_aio  nng_aio;
+
+// Initializers.
+// clang-format off
+#define NNG_PIPE_INITIALIZER { 0 }
+#define NNG_SOCKET_INITIALIZER { 0 }
+#define NNG_DIALER_INITIALIZER { 0 }
+#define NNG_LISTENER_INITIALIZER { 0 }
+#define NNG_CTX_INITIALIZER { 0 }
+// clang-format on
+
+// Some address details. This is in some ways like a traditional sockets
+// sockaddr, but we have our own to cope with our unique families, etc.
+// The details of this structure are directly exposed to applications.
+// These structures can be obtained via property lookups, etc.
+struct nng_sockaddr_inproc {
+	uint16_t sa_family;
+	char     sa_name[NNG_MAXADDRLEN];
+};
+typedef struct nng_sockaddr_inproc nng_sockaddr_inproc;
+
+struct nng_sockaddr_path {
+	uint16_t sa_family;
+	char     sa_path[NNG_MAXADDRLEN];
+};
+typedef struct nng_sockaddr_path nng_sockaddr_path;
+typedef struct nng_sockaddr_path nng_sockaddr_ipc;
+
+struct nng_sockaddr_in6 {
+	uint16_t sa_family;
+	uint16_t sa_port;
+	uint8_t  sa_addr[16];
+};
+typedef struct nng_sockaddr_in6 nng_sockaddr_in6;
+typedef struct nng_sockaddr_in6 nng_sockaddr_udp6;
+typedef struct nng_sockaddr_in6 nng_sockaddr_tcp6;
+
+struct nng_sockaddr_in {
+	uint16_t sa_family;
+	uint16_t sa_port;
+	uint32_t sa_addr;
+};
+
+struct nng_sockaddr_zt {
+	uint16_t sa_family;
+	uint64_t sa_nwid;
+	uint64_t sa_nodeid;
+	uint32_t sa_port;
+};
+
+typedef struct nng_sockaddr_in nng_sockaddr_in;
+typedef struct nng_sockaddr_in nng_sockaddr_udp;
+typedef struct nng_sockaddr_in nng_sockaddr_tcp;
+typedef struct nng_sockaddr_zt nng_sockaddr_zt;
+
+typedef union nng_sockaddr {
+	uint16_t            s_family;
+	nng_sockaddr_ipc    s_ipc;
+	nng_sockaddr_inproc s_inproc;
+	nng_sockaddr_in6    s_in6;
+	nng_sockaddr_in     s_in;
+	nng_sockaddr_zt     s_zt;
+} nng_sockaddr;
+
+enum nng_sockaddr_family {
+	NNG_AF_UNSPEC = 0,
+	NNG_AF_INPROC = 1,
+	NNG_AF_IPC    = 2,
+	NNG_AF_INET   = 3,
+	NNG_AF_INET6  = 4,
+	NNG_AF_ZT     = 5 // ZeroTier
+};
+
+// Scatter/gather I/O.
+typedef struct nng_iov {
+	void * iov_buf;
+	size_t iov_len;
+} nng_iov;
+
+// Some definitions for durations used with timeouts.
+#define NNG_DURATION_INFINITE (-1)
+#define NNG_DURATION_DEFAULT (-2)
+#define NNG_DURATION_ZERO (0)
+
+// nng_fini is used to terminate the library, freeing certain global resources.
+// This should only be called during atexit() or just before dlclose().
+// THIS FUNCTION MUST NOT BE CALLED CONCURRENTLY WITH ANY OTHER FUNCTION
+// IN THIS LIBRARY; IT IS NOT REENTRANT OR THREADSAFE.
+//
+// For most cases, this call is unnecessary, but it is provided to assist
+// when debugging with memory checkers (e.g. valgrind).  Calling this
+// function prevents global library resources from being reported incorrectly
+// as memory leaks.  In those cases, we recommend doing this with atexit().
+NNG_DECL void nng_fini(void);
+
+// nng_close closes the socket, terminating all activity and
+// closing any underlying connections and releasing any associated
+// resources.
+NNG_DECL int nng_close(nng_socket);
+
+// nng_socket_id returns the positive socket id for the socket, or -1
+// if the socket is not valid.
+NNG_DECL int nng_socket_id(nng_socket);
+
+// nng_closeall closes all open sockets. Do not call this from
+// a library; it will affect all sockets.
+NNG_DECL void nng_closeall(void);
+
+// nng_setopt sets an option for a specific socket.
+NNG_DECL int nng_setopt(nng_socket, const char *, const void *, size_t);
+NNG_DECL int nng_setopt_bool(nng_socket, const char *, bool);
+NNG_DECL int nng_setopt_int(nng_socket, const char *, int);
+NNG_DECL int nng_setopt_ms(nng_socket, const char *, nng_duration);
+NNG_DECL int nng_setopt_size(nng_socket, const char *, size_t);
+NNG_DECL int nng_setopt_uint64(nng_socket, const char *, uint64_t);
+NNG_DECL int nng_setopt_string(nng_socket, const char *, const char *);
+NNG_DECL int nng_setopt_ptr(nng_socket, const char *, void *);
+
+// nng_socket_getopt obtains the option for a socket.
+NNG_DECL int nng_getopt(nng_socket, const char *, void *, size_t *);
+NNG_DECL int nng_getopt_bool(nng_socket, const char *, bool *);
+NNG_DECL int nng_getopt_int(nng_socket, const char *, int *);
+NNG_DECL int nng_getopt_ms(nng_socket, const char *, nng_duration *);
+NNG_DECL int nng_getopt_size(nng_socket, const char *, size_t *);
+NNG_DECL int nng_getopt_uint64(nng_socket, const char *, uint64_t *);
+NNG_DECL int nng_getopt_ptr(nng_socket, const char *, void **);
+
+// Arguably the pipe callback functions could be handled as an option,
+// but with the need to specify an argument, we find it best to unify
+// this as a separate function to pass in the argument and the callback.
+// Only one callback can be set on a given socket, and there is no way
+// to retrieve the old value.
+typedef enum {
+	NNG_PIPE_EV_ADD_PRE,  // Called just before pipe added to socket
+	NNG_PIPE_EV_ADD_POST, // Called just after pipe added to socket
+	NNG_PIPE_EV_REM_POST, // Called just after pipe removed from socket
+	NNG_PIPE_EV_NUM,      // Used internally, must be last.
+} nng_pipe_ev;
+
+typedef void (*nng_pipe_cb)(nng_pipe, int, void *);
+
+// nng_pipe_notify registers a callback to be executed when the
+// given event is triggered.  To watch for different events, register
+// multiple times.  Each event can have at most one callback registered.
+NNG_DECL int nng_pipe_notify(nng_socket, int, nng_pipe_cb, void *);
+
+// nng_getopt_string is special -- it allocates a string to hold the
+// resulting string, which should be freed with nng_strfree when it is
+// no logner needed.
+NNG_DECL int nng_getopt_string(nng_socket, const char *, char **);
+
+// nng_listen creates a listening endpoint with no special options,
+// and starts it listening.  It is functionally equivalent to the legacy
+// nn_bind(). The underlying endpoint is returned back to the caller in the
+// endpoint pointer, if it is not NULL.  The flags are ignored at present.
+NNG_DECL int nng_listen(nng_socket, const char *, nng_listener *, int);
+
+// nng_dial creates a dialing endpoint, with no special options, and
+// starts it dialing.  Dialers have at most one active connection at a time
+// This is similar to the legacy nn_connect().  The underlying endpoint
+// is returned back to the caller in the endpoint pointer, if it is not NULL.
+// The flags may be NNG_FLAG_NONBLOCK to indicate that the first attempt to
+// dial will be made in the background, returning control to the caller
+// immediately.  In this case, if the connection fails, the function will
+// keep retrying in the background.  (If the connection is dropped in either
+// case, it will still be reconnected in the background -- only the initial
+// connection attempt is normally synchronous.)
+NNG_DECL int nng_dial(nng_socket, const char *, nng_dialer *, int);
+
+// nng_dialer_create creates a new dialer, that is not yet started.
+NNG_DECL int nng_dialer_create(nng_dialer *, nng_socket, const char *);
+
+// nng_listener_create creates a new listener, that is not yet started.
+NNG_DECL int nng_listener_create(nng_listener *, nng_socket, const char *);
+
+// nng_dialer_start starts the endpoint dialing.  This is only possible if
+// the dialer is not already dialing.
+NNG_DECL int nng_dialer_start(nng_dialer, int);
+
+// nng_listener_start starts the endpoint listening.  This is only possible if
+// the listener is not already listening.
+NNG_DECL int nng_listener_start(nng_listener, int);
+
+// nng_dialer_close closes the dialer, shutting down all underlying
+// connections and releasing all associated resources.
+NNG_DECL int nng_dialer_close(nng_dialer);
+
+// nng_listener_close closes the listener, shutting down all underlying
+// connections and releasing all associated resources.
+NNG_DECL int nng_listener_close(nng_listener);
+
+// nng_dialer_id returns the positive dialer ID, or -1 if the dialer is
+// invalid.
+NNG_DECL int nng_dialer_id(nng_dialer);
+
+// nng_listener_id returns the positive listener ID, or -1 if the listener is
+// invalid.
+NNG_DECL int nng_listener_id(nng_listener);
+
+// nng_dialer_setopt sets an option for a specific dialer.  Note
+// dialer options may not be altered on a running dialer.
+NNG_DECL int nng_dialer_setopt(nng_dialer, const char *, const void *, size_t);
+NNG_DECL int nng_dialer_setopt_bool(nng_dialer, const char *, bool);
+NNG_DECL int nng_dialer_setopt_int(nng_dialer, const char *, int);
+NNG_DECL int nng_dialer_setopt_ms(nng_dialer, const char *, nng_duration);
+NNG_DECL int nng_dialer_setopt_size(nng_dialer, const char *, size_t);
+NNG_DECL int nng_dialer_setopt_uint64(nng_dialer, const char *, uint64_t);
+NNG_DECL int nng_dialer_setopt_ptr(nng_dialer, const char *, void *);
+NNG_DECL int nng_dialer_setopt_string(nng_dialer, const char *, const char *);
+
+// nng_dialer_getopt obtains the option for a dialer. This will
+// fail for options that a particular dialer is not interested in,
+// even if they were set on the socket.
+NNG_DECL int nng_dialer_getopt(nng_dialer, const char *, void *, size_t *);
+NNG_DECL int nng_dialer_getopt_bool(nng_dialer, const char *, bool *);
+NNG_DECL int nng_dialer_getopt_int(nng_dialer, const char *, int *);
+NNG_DECL int nng_dialer_getopt_ms(nng_dialer, const char *, nng_duration *);
+NNG_DECL int nng_dialer_getopt_size(nng_dialer, const char *, size_t *);
+NNG_DECL int nng_dialer_getopt_sockaddr(
+    nng_dialer, const char *, nng_sockaddr *);
+NNG_DECL int nng_dialer_getopt_uint64(nng_dialer, const char *, uint64_t *);
+NNG_DECL int nng_dialer_getopt_ptr(nng_dialer, const char *, void **);
+
+// nng_dialer_getopt_string is special -- it allocates a string to hold the
+// resulting string, which should be freed with nng_strfree when it is
+// no logner needed.
+NNG_DECL int nng_dialer_getopt_string(nng_dialer, const char *, char **);
+
+// nng_listener_setopt sets an option for a dialer.  This value is
+// not stored in the socket.  Subsequent setopts on the socket may
+// override these value however.  Note listener options may not be altered
+// on a running listener.
+NNG_DECL int nng_listener_setopt(
+    nng_listener, const char *, const void *, size_t);
+NNG_DECL int nng_listener_setopt_bool(nng_listener, const char *, bool);
+NNG_DECL int nng_listener_setopt_int(nng_listener, const char *, int);
+NNG_DECL int nng_listener_setopt_ms(nng_listener, const char *, nng_duration);
+NNG_DECL int nng_listener_setopt_size(nng_listener, const char *, size_t);
+NNG_DECL int nng_listener_setopt_uint64(nng_listener, const char *, uint64_t);
+NNG_DECL int nng_listener_setopt_ptr(nng_listener, const char *, void *);
+NNG_DECL int nng_listener_setopt_string(
+    nng_listener, const char *, const char *);
+
+// nng_listener_getopt obtains the option for a listener.  This will
+// fail for options that a particular listener is not interested in,
+// even if they were set on the socket.
+NNG_DECL int nng_listener_getopt(nng_listener, const char *, void *, size_t *);
+NNG_DECL int nng_listener_getopt_bool(nng_listener, const char *, bool *);
+NNG_DECL int nng_listener_getopt_int(nng_listener, const char *, int *);
+NNG_DECL int nng_listener_getopt_ms(
+    nng_listener, const char *, nng_duration *);
+NNG_DECL int nng_listener_getopt_size(nng_listener, const char *, size_t *);
+NNG_DECL int nng_listener_getopt_sockaddr(
+    nng_listener, const char *, nng_sockaddr *);
+NNG_DECL int nng_listener_getopt_uint64(
+    nng_listener, const char *, uint64_t *);
+NNG_DECL int nng_listener_getopt_ptr(nng_listener, const char *, void **);
+
+// nng_listener_getopt_string is special -- it allocates a string to hold the
+// resulting string, which should be freed with nng_strfree when it is
+// no logner needed.
+NNG_DECL int nng_listener_getopt_string(nng_listener, const char *, char **);
+
+// nng_strerror returns a human readable string associated with the error
+// code supplied.
+NNG_DECL const char *nng_strerror(int);
+
+// nng_send sends (or arranges to send) the data on the socket.  Note that
+// this function may (will!) return before any receiver has actually
+// received the data.  The return value will be zero to indicate that the
+// socket has accepted the entire data for send, or an errno to indicate
+// failure.  The flags may include NNG_FLAG_NONBLOCK or NNG_FLAG_ALLOC.
+// If the flag includes NNG_FLAG_ALLOC, then the function will call
+// nng_free() on the supplied pointer & size on success. (If the call
+// fails then the memory is not freed.)
+NNG_DECL int nng_send(nng_socket, void *, size_t, int);
+
+// nng_recv receives message data into the socket, up to the supplied size.
+// The actual size of the message data will be written to the value pointed
+// to by size.  The flags may include NNG_FLAG_NONBLOCK and NNG_FLAG_ALLOC.
+// If NNG_FLAG_ALLOC is supplied then the library will allocate memory for
+// the caller.  In that case the pointer to the allocated will be stored
+// instead of the data itself.  The caller is responsible for freeing the
+// associated memory with nng_free().
+NNG_DECL int nng_recv(nng_socket, void *, size_t *, int);
+
+// nng_sendmsg is like nng_send, but offers up a message structure, which
+// gives the ability to provide more control over the message, including
+// providing backtrace information.  It also can take a message that was
+// obtain via nn_recvmsg, allowing for zero copy forwarding.
+NNG_DECL int nng_sendmsg(nng_socket, nng_msg *, int);
+
+// nng_recvmsg is like nng_recv, but is used to obtain a message structure
+// as well as the data buffer.  This can be used to obtain more information
+// about where the message came from, access raw headers, etc.  It also
+// can be passed off directly to nng_sendmsg.
+NNG_DECL int nng_recvmsg(nng_socket, nng_msg **, int);
+
+// nng_send_aio sends data on the socket asynchronously.  As with nng_send,
+// the completion may be executed before the data has actually been delivered,
+// but only when it is accepted for delivery.  The supplied AIO must have
+// been initialized, and have an associated message.  The message will be
+// "owned" by the socket if the operation completes successfully.  Otherwise
+// the caller is responsible for freeing it.
+NNG_DECL void nng_send_aio(nng_socket, nng_aio *);
+
+// nng_recv_aio receives data on the socket asynchronously.  On a successful
+// result, the AIO will have an associated message, that can be obtained
+// with nng_aio_get_msg().  The caller takes ownership of the message at
+// this point.
+NNG_DECL void nng_recv_aio(nng_socket, nng_aio *);
+
+// Context support.  User contexts are not supported by all protocols,
+// but for those that do, they give a way to create multiple contexts
+// on a single socket, each of which runs the protocol's state machinery
+// independently, offering a way to achieve concurrent protocol support
+// without resorting to raw mode sockets.  See the protocol specific
+// documentation for further details.  (Note that at this time, only
+// asynchronous send/recv are supported for contexts, but its easy enough
+// to make synchronous versions with nng_aio_wait().)  Note that nng_close
+// of the parent socket will *block* as long as any contexts are open.
+
+// nng_ctx_open creates a context.  This returns NNG_ENOTSUP if the
+// protocol implementation does not support separate contexts.
+NNG_DECL int nng_ctx_open(nng_ctx *, nng_socket);
+
+// nng_ctx_close closes the context.
+NNG_DECL int nng_ctx_close(nng_ctx);
+
+// nng_ctx_id returns the numeric id for the context; this will be
+// a postive value for a valid context, or < 0 for an invalid context.
+// A valid context is not necessarily an *open* context.
+NNG_DECL int nng_ctx_id(nng_ctx);
+
+// nng_ctx_recv receives asynchronously.  It works like nng_recv_aio, but
+// uses a local context instead of the socket global context.
+NNG_DECL void nng_ctx_recv(nng_ctx, nng_aio *);
+
+// nng_ctx_send sends asynchronously. It works like nng_send_aio, but
+// uses a local context instead of the socket global context.
+NNG_DECL void nng_ctx_send(nng_ctx, nng_aio *);
+
+// nng_ctx_getopt is used to retrieve a context-specific option.  This
+// can only be used for those options that relate to specific context
+// tunables (which does include NNG_OPT_SENDTIMEO and NNG_OPT_RECVTIMEO);
+// see the protocol documentation for more details.
+NNG_DECL int nng_ctx_getopt(nng_ctx, const char *, void *, size_t *);
+NNG_DECL int nng_ctx_getopt_bool(nng_ctx, const char *, bool *);
+NNG_DECL int nng_ctx_getopt_int(nng_ctx, const char *, int *);
+NNG_DECL int nng_ctx_getopt_ms(nng_ctx, const char *, nng_duration *);
+NNG_DECL int nng_ctx_getopt_size(nng_ctx, const char *, size_t *);
+
+// nng_ctx_setopt is used to set a context-specific option.  This
+// can only be used for those options that relate to specific context
+// tunables (which does include NNG_OPT_SENDTIMEO and NNG_OPT_RECVTIMEO);
+// see the protocol documentation for more details.
+NNG_DECL int nng_ctx_setopt(nng_ctx, const char *, const void *, size_t);
+NNG_DECL int nng_ctx_setopt_bool(nng_ctx, const char *, bool);
+NNG_DECL int nng_ctx_setopt_int(nng_ctx, const char *, int);
+NNG_DECL int nng_ctx_setopt_ms(nng_ctx, const char *, nng_duration);
+NNG_DECL int nng_ctx_setopt_size(nng_ctx, const char *, size_t);
+
+// nng_alloc is used to allocate memory.  It's intended purpose is for
+// allocating memory suitable for message buffers with nng_send().
+// Applications that need memory for other purposes should use their platform
+// specific API.
+NNG_DECL void *nng_alloc(size_t);
+
+// nng_free is used to free memory allocated with nng_alloc, which includes
+// memory allocated by nng_recv() when the NNG_FLAG_ALLOC message is supplied.
+// As the application is required to keep track of the size of memory, this
+// is probably less convenient for general uses than the C library malloc and
+// calloc.
+NNG_DECL void nng_free(void *, size_t);
+
+// nng_strdup duplicates the source string, using nng_alloc. The result
+// should be freed with nng_strfree (or nng_free(strlen(s)+1)).
+NNG_DECL char *nng_strdup(const char *);
+
+// nng_strfree is equivalent to nng_free(strlen(s)+1).
+NNG_DECL void nng_strfree(char *);
+
+// Async IO API.  AIO structures can be thought of as "handles" to
+// support asynchronous operations.  They contain the completion callback, and
+// a pointer to consumer data.  This is similar to how overlapped I/O
+// works in Windows, when used with a completion callback.
+//
+// AIO structures can carry up to 4 distinct input values, and up to
+// 4 distinct output values, and up to 4 distinct "private state" values.
+// The meaning of the inputs and the outputs are determined by the
+// I/O functions being called.
+
+// nng_aio_alloc allocates a new AIO, and associated the completion
+// callback and its opaque argument.  If NULL is supplied for the
+// callback, then the caller must use nng_aio_wait() to wait for the
+// operation to complete.  If the completion callback is not NULL, then
+// when a submitted operation completes (or is canceled or fails) the
+// callback will be executed, generally in a different thread, with no
+// locks held.
+NNG_DECL int nng_aio_alloc(nng_aio **, void (*)(void *), void *);
+
+// nng_aio_free frees the AIO and any associated resources.
+// It *must not* be in use at the time it is freed.
+NNG_DECL void nng_aio_free(nng_aio *);
+
+// nng_aio_stop stops any outstanding operation, and waits for the
+// AIO to be free, including for the callback to have completed
+// execution.  Therefore the caller must NOT hold any locks that
+// are acquired in the callback, or deadlock will occur.
+NNG_DECL void nng_aio_stop(nng_aio *);
+
+// nng_aio_result returns the status/result of the operation. This
+// will be zero on successful completion, or an nng error code on
+// failure.
+NNG_DECL int nng_aio_result(nng_aio *);
+
+// nng_aio_count returns the number of bytes transferred for certain
+// I/O operations.  This is meaningless for other operations (e.g.
+// DNS lookups or TCP connection setup).
+NNG_DECL size_t nng_aio_count(nng_aio *);
+
+// nng_aio_cancel attempts to cancel any in-progress I/O operation.
+// The AIO callback will still be executed, but if the cancellation is
+// successful then the status will be NNG_ECANCELED.
+NNG_DECL void nng_aio_cancel(nng_aio *);
+
+// nng_aio_abort is like nng_aio_cancel, but allows for a different
+// error result to be returned.
+NNG_DECL void nng_aio_abort(nng_aio *, int);
+
+// nng_aio_wait waits synchronously for any pending operation to complete.
+// It also waits for the callback to have completed execution.  Therefore,
+// the caller of this function must not hold any locks acquired by the
+// callback or deadlock may occur.
+NNG_DECL void nng_aio_wait(nng_aio *);
+
+// nng_aio_set_msg sets the message structure to use for asynchronous
+// message send operations.
+NNG_DECL void nng_aio_set_msg(nng_aio *, nng_msg *);
+
+// nng_aio_get_msg returns the message structure associated with a completed
+// receive operation.
+NNG_DECL nng_msg *nng_aio_get_msg(nng_aio *);
+
+// nng_aio_set_input sets an input parameter at the given index.
+NNG_DECL int nng_aio_set_input(nng_aio *, unsigned, void *);
+
+// nng_aio_get_input retrieves the input parameter at the given index.
+NNG_DECL void *nng_aio_get_input(nng_aio *, unsigned);
+
+// nng_aio_set_output sets an output result at the given index.
+NNG_DECL int nng_aio_set_output(nng_aio *, unsigned, void *);
+
+// nng_aio_get_output retrieves the output result at the given index.
+NNG_DECL void *nng_aio_get_output(nng_aio *, unsigned);
+
+// nng_aio_set_timeout sets a timeout on the AIO.  This should be called for
+// operations that should time out after a period.  The timeout should be
+// either a positive number of milliseconds, or NNG_DURATION_INFINITE to
+// indicate that the operation has no timeout.  A poll may be done by
+// specifying NNG_DURATION_ZERO.  The value NNG_DURATION_DEFAULT indicates
+// that any socket specific timeout should be used.
+NNG_DECL void nng_aio_set_timeout(nng_aio *, nng_duration);
+
+// nng_aio_set_iov sets a scatter/gather vector on the aio.  The iov array
+// itself is copied. Data members (the memory regions referenced) *may* be
+// copied as well, depending on the operation.  This operation is guaranteed
+// to succeed if n <= 4, otherwise it may fail due to NNG_ENOMEM.
+NNG_DECL int nng_aio_set_iov(nng_aio *, unsigned, const nng_iov *);
+
+// nng_aio_begin is called by the provider to mark the operation as
+// beginning.  If it returns false, then the provider must take no
+// further action on the aio.
+NNG_DECL bool nng_aio_begin(nng_aio *);
+
+// nng_aio_finish is used to "finish" an asynchronous operation.
+// It should only be called by "providers" (such as HTTP server API users).
+// The argument is the value that nng_aio_result() should return.
+// IMPORTANT: Callers must ensure that this is called EXACTLY ONCE on any
+// given aio.
+NNG_DECL void nng_aio_finish(nng_aio *, int);
+
+// nng_aio_defer is used to register a cancellation routine, and indicate
+// that the operation will be completed asynchronously.  It must only be
+// called once per operation on an aio, and must only be called by providers.
+// If the operation is canceled by the consumer, the cancellation callback
+// will be called.  The provider *must* still ensure that the nng_aio_finish()
+// function is called EXACTLY ONCE.  If the operation cannot be canceled
+// for any reason, the cancellation callback should do nothing.  The
+// final argument is passed to the cancelfn.  The final argument of the
+// cancellation function is the error number (will not be zero) corresponding
+// to the reason for cancellation, e.g. NNG_ETIMEDOUT or NNG_ECANCELED.
+typedef void (*nng_aio_cancelfn)(nng_aio *, void *, int);
+NNG_DECL void nng_aio_defer(nng_aio *, nng_aio_cancelfn, void *);
+
+// nng_aio_sleep does a "sleeping" operation, basically does nothing
+// but wait for the specified number of milliseconds to expire, then
+// calls the callback.  This returns 0, rather than NNG_ETIMEDOUT.
+NNG_DECL void nng_sleep_aio(nng_duration, nng_aio *);
+
+// Message API.
+NNG_DECL int   nng_msg_alloc(nng_msg **, size_t);
+NNG_DECL void  nng_msg_free(nng_msg *);
+NNG_DECL int   nng_msg_realloc(nng_msg *, size_t);
+NNG_DECL void *nng_msg_header(nng_msg *);
+NNG_DECL size_t nng_msg_header_len(const nng_msg *);
+NNG_DECL void * nng_msg_body(nng_msg *);
+NNG_DECL size_t nng_msg_len(const nng_msg *);
+NNG_DECL int    nng_msg_append(nng_msg *, const void *, size_t);
+NNG_DECL int    nng_msg_insert(nng_msg *, const void *, size_t);
+NNG_DECL int    nng_msg_trim(nng_msg *, size_t);
+NNG_DECL int    nng_msg_chop(nng_msg *, size_t);
+NNG_DECL int    nng_msg_header_append(nng_msg *, const void *, size_t);
+NNG_DECL int    nng_msg_header_insert(nng_msg *, const void *, size_t);
+NNG_DECL int    nng_msg_header_trim(nng_msg *, size_t);
+NNG_DECL int    nng_msg_header_chop(nng_msg *, size_t);
+NNG_DECL int    nng_msg_header_append_u16(nng_msg *, uint16_t);
+NNG_DECL int    nng_msg_header_append_u32(nng_msg *, uint32_t);
+NNG_DECL int    nng_msg_header_append_u64(nng_msg *, uint64_t);
+NNG_DECL int    nng_msg_header_insert_u16(nng_msg *, uint16_t);
+NNG_DECL int    nng_msg_header_insert_u32(nng_msg *, uint32_t);
+NNG_DECL int    nng_msg_header_insert_u64(nng_msg *, uint64_t);
+NNG_DECL int    nng_msg_header_chop_u16(nng_msg *, uint16_t *);
+NNG_DECL int    nng_msg_header_chop_u32(nng_msg *, uint32_t *);
+NNG_DECL int    nng_msg_header_chop_u64(nng_msg *, uint64_t *);
+NNG_DECL int    nng_msg_header_trim_u16(nng_msg *, uint16_t *);
+NNG_DECL int    nng_msg_header_trim_u32(nng_msg *, uint32_t *);
+NNG_DECL int    nng_msg_header_trim_u64(nng_msg *, uint64_t *);
+NNG_DECL int    nng_msg_append_u16(nng_msg *, uint16_t);
+NNG_DECL int    nng_msg_append_u32(nng_msg *, uint32_t);
+NNG_DECL int    nng_msg_append_u64(nng_msg *, uint64_t);
+NNG_DECL int    nng_msg_insert_u16(nng_msg *, uint16_t);
+NNG_DECL int    nng_msg_insert_u32(nng_msg *, uint32_t);
+NNG_DECL int    nng_msg_insert_u64(nng_msg *, uint64_t);
+NNG_DECL int    nng_msg_chop_u16(nng_msg *, uint16_t *);
+NNG_DECL int    nng_msg_chop_u32(nng_msg *, uint32_t *);
+NNG_DECL int    nng_msg_chop_u64(nng_msg *, uint64_t *);
+NNG_DECL int    nng_msg_trim_u16(nng_msg *, uint16_t *);
+NNG_DECL int    nng_msg_trim_u32(nng_msg *, uint32_t *);
+NNG_DECL int    nng_msg_trim_u64(nng_msg *, uint64_t *);
+NNG_DECL int    nng_msg_dup(nng_msg **, const nng_msg *);
+NNG_DECL void   nng_msg_clear(nng_msg *);
+NNG_DECL void   nng_msg_header_clear(nng_msg *);
+NNG_DECL void   nng_msg_set_pipe(nng_msg *, nng_pipe);
+NNG_DECL nng_pipe nng_msg_get_pipe(const nng_msg *);
+NNG_DECL int      nng_msg_getopt(nng_msg *, int, void *, size_t *);
+
+// Pipe API. Generally pipes are only "observable" to applications, but
+// we do permit an application to close a pipe. This can be useful, for
+// example during a connection notification, to disconnect a pipe that
+// is associated with an invalid or untrusted remote peer.
+NNG_DECL int nng_pipe_getopt(nng_pipe, const char *, void *, size_t *);
+NNG_DECL int nng_pipe_getopt_bool(nng_pipe, const char *, bool *);
+NNG_DECL int nng_pipe_getopt_int(nng_pipe, const char *, int *);
+NNG_DECL int nng_pipe_getopt_ms(nng_pipe, const char *, nng_duration *);
+NNG_DECL int nng_pipe_getopt_size(nng_pipe, const char *, size_t *);
+NNG_DECL int nng_pipe_getopt_sockaddr(nng_pipe, const char *, nng_sockaddr *);
+NNG_DECL int nng_pipe_getopt_uint64(nng_pipe, const char *, uint64_t *);
+NNG_DECL int nng_pipe_getopt_ptr(nng_pipe, const char *, void **);
+NNG_DECL int nng_pipe_getopt_string(nng_pipe, const char *, char **);
+NNG_DECL int nng_pipe_close(nng_pipe);
+NNG_DECL int nng_pipe_id(nng_pipe);
+NNG_DECL nng_socket nng_pipe_socket(nng_pipe);
+NNG_DECL nng_dialer nng_pipe_dialer(nng_pipe);
+NNG_DECL nng_listener nng_pipe_listener(nng_pipe);
+
+// Flags.
+enum nng_flag_enum {
+	NNG_FLAG_ALLOC    = 1, // Recv to allocate receive buffer.
+	NNG_FLAG_NONBLOCK = 2  // Non-blocking operations.
+};
+
+// Options.
+#define NNG_OPT_SOCKNAME "socket-name"
+#define NNG_OPT_RAW "raw"
+#define NNG_OPT_PROTO "protocol"
+#define NNG_OPT_PROTONAME "protocol-name"
+#define NNG_OPT_PEER "peer"
+#define NNG_OPT_PEERNAME "peer-name"
+#define NNG_OPT_RECVBUF "recv-buffer"
+#define NNG_OPT_SENDBUF "send-buffer"
+#define NNG_OPT_RECVFD "recv-fd"
+#define NNG_OPT_SENDFD "send-fd"
+#define NNG_OPT_RECVTIMEO "recv-timeout"
+#define NNG_OPT_SENDTIMEO "send-timeout"
+#define NNG_OPT_LOCADDR "local-address"
+#define NNG_OPT_REMADDR "remote-address"
+#define NNG_OPT_URL "url"
+#define NNG_OPT_MAXTTL "ttl-max"
+#define NNG_OPT_RECVMAXSZ "recv-size-max"
+#define NNG_OPT_RECONNMINT "reconnect-time-min"
+#define NNG_OPT_RECONNMAXT "reconnect-time-max"
+
+// TLS options are only used when the underlying transport supports TLS.
+
+// NNG_OPT_TLS_CONFIG is a pointer to an nng_tls_config object.  Generally
+// this can used with endpoints, although once an endpoint is started, or
+// once a configuration is used, the value becomes read-only. Note that
+// when configuring the object, a hold is placed on the TLS configuration,
+// using a reference count.  When retrieving the object, no such hold is
+// placed, and so the caller must take care not to use the associated object
+// after the endpoint it is associated with is closed.
+#define NNG_OPT_TLS_CONFIG "tls-config"
+
+// NNG_OPT_TLS_AUTH_MODE is a write-only integer (int) option that specifies
+// whether peer authentication is needed.  The option can take one of the
+// values of NNG_TLS_AUTH_MODE_NONE, NNG_TLS_AUTH_MODE_OPTIONAL, or
+// NNG_TLS_AUTH_MODE_REQUIRED.  The default is typically NNG_TLS_AUTH_MODE_NONE
+// for listeners, and NNG_TLS_AUTH_MODE_REQUIRED for dialers. If set to
+// REQUIRED, then connections will be rejected if the peer cannot be verified.
+// If set to OPTIONAL, then a verification step takes place, but the connection
+// is still permitted.  (The result can be checked with NNG_OPT_TLS_VERIFIED).
+#define NNG_OPT_TLS_AUTH_MODE "tls-authmode"
+
+// NNG_OPT_TLS_CERT_KEY_FILE names a single file that contains a certificate
+// and key identifying the endpoint.  This is a write-only value.  This can be
+// set multiple times for times for different keys/certs corresponding to
+// different algorithms on listeners, whereas dialers only support one.  The
+// file must contain both cert and key as PEM blocks, and the key must
+// not be encrypted.  (If more flexibility is needed, use the TLS configuration
+// directly, via NNG_OPT_TLS_CONFIG.)
+#define NNG_OPT_TLS_CERT_KEY_FILE "tls-cert-key-file"
+
+// NNG_OPT_TLS_CA_FILE names a single file that contains certificate(s) for a
+// CA, and optionally CRLs, which are used to validate the peer's certificate.
+// This is a write-only value, but multiple CAs can be loaded by setting this
+// multiple times.
+#define NNG_OPT_TLS_CA_FILE "tls-ca-file"
+
+// NNG_OPT_TLS_SERVER_NAME is a write-only string that can typically be
+// set on dialers to check the CN of the server for a match.  This
+// can also affect SNI (server name indication).  It usually has no effect
+// on listeners.
+#define NNG_OPT_TLS_SERVER_NAME "tls-server-name"
+
+// NNG_OPT_TLS_VERIFIED returns a boolean indicating whether the peer has
+// been verified (true) or not (false). Typically this is read-only, and
+// only available for pipes. This option may return incorrect results if
+// peer authentication is disabled with `NNG_TLS_AUTH_MODE_NONE`.
+#define NNG_OPT_TLS_VERIFIED "tls-verified"
+
+// TCP options.  These may be supported on various transports that use
+// TCP underneath such as TLS, or not.
+
+// TCP nodelay disables the use of Nagle, so that messages are sent
+// as soon as data is available. This tends to reduce latency, but
+// can come at the cost of extra messages being sent, and may have
+// a detrimental effect on performance. For most uses, we recommend
+// enabling this. (Disable it if you are on a very slow network.)
+// This is a boolean.
+#define NNG_OPT_TCP_NODELAY "tcp-nodelay"
+
+// TCP keepalive causes the underlying transport to send keep-alive
+// messages, and keep the session active. Keepalives are zero length
+// messages with the ACK flag turned on. If we don't get an ACK back,
+// then we know the other side is gone. This is useful for detecting
+// dead peers, and is also used to prevent disconnections caused by
+// middle boxes thinking the session has gone idle (e.g. keeping NAT
+// state current). This is a boolean.
+#define NNG_OPT_TCP_KEEPALIVE "tcp-keepalive"
+
+// IPC options.  These will largely vary depending on the platform,
+// as POSIX systems have very different options than Windows.
+
+// Security Descriptor.  This option may only be set on listeners
+// on the Windows platform, where the object is a pointer to a
+// a Windows SECURITY_DESCRIPTOR.
+#define NNG_OPT_IPC_SECURITY_DESCRIPTOR "ipc:security-descriptor"
+
+// Permissions bits.  This option is only valid for listeners on
+// POSIX platforms and others that honor UNIX style permission bits.
+// Note that some platforms may not honor the permissions here, although
+// at least Linux and macOS seem to do so.  Check before you rely on
+// this for security.
+#define NNG_OPT_IPC_PERMISSIONS "ipc:permissions"
+
+// Peer UID.  This is only available on POSIX style systems.
+#define NNG_OPT_IPC_PEER_UID "ipc:peer-uid"
+
+// Peer GID (primary group).  This is only available on POSIX style systems.
+#define NNG_OPT_IPC_PEER_GID "ipc:peer-gid"
+
+// Peer process ID.  Available on Windows, Linux, and SunOS.
+// In theory we could obtain this with the first message sent,
+// but we have elected not to do this for now. (Nice RFE for a FreeBSD
+// guru though.)
+#define NNG_OPT_IPC_PEER_PID "ipc:peer-pid"
+
+// Peer Zone ID.  Only on SunOS systems.  (Linux containers have no
+// definable kernel identity; they are a user-land fabrication made up
+// from various pieces of different namespaces. FreeBSD does have
+// something called JailIDs, but it isn't obvious how to determine this,
+// or even if processes can use IPC across jail boundaries.)
+#define NNG_OPT_IPC_PEER_ZONEID "ipc:peer-zoneid"
+
+// XXX: TBD: priorities, ipv4only
+
+// Statistics. These are for informational purposes only, and subject
+// to change without notice. The API for accessing these is stable,
+// but the individual statistic names, values, and meanings are all
+// subject to change.
+
+// nng_stats_get takes a snapshot of the entire set of statistics.
+// While the operation can be somewhat expensive (allocations), it
+// is done in a way that minimizes impact to running operations.
+// Note that the statistics are provided as tree, with parents
+// used for grouping, and with child statistics underneath.  The
+// top stat returned will be of type NNG_STAT_SCOPE with name "".
+// Applications may choose to consider this root scope as "root", if
+// the empty string is not suitable.
+NNG_DECL int nng_stats_get(nng_stat **);
+
+// nng_stats_free frees a previous list of snapshots.  This should only
+// be called on the parent statistic that obtained via nng_stats_get.
+NNG_DECL void nng_stats_free(nng_stat *);
+
+// nng_stats_dump is a debugging function that dumps the entire set of
+// statistics to stdout.
+NNG_DECL void nng_stats_dump(nng_stat *);
+
+// nng_stat_next finds the next sibling for the current stat.  If there
+// are no more siblings, it returns NULL.
+NNG_DECL nng_stat *nng_stat_next(nng_stat *);
+
+// nng_stat_child finds the first child of the current stat.  If no children
+// exist, then NULL is returned.
+NNG_DECL nng_stat *nng_stat_child(nng_stat *);
+
+// nng_stat_name is used to determine the name of the statistic.
+// This is a human readable name.  Statistic names, as well as the presence
+// or absence or semantic of any particular statistic are not part of any
+// stable API, and may be changed without notice in future updates.
+NNG_DECL const char *nng_stat_name(nng_stat *);
+
+// nng_stat_type is used to determine the type of the statistic.
+// At present, only NNG_STAT_TYPE_LEVEL and and NNG_STAT_TYPE_COUNTER
+// are defined.  Counters generally increment, and therefore changes in the
+// value over time are likely more interesting than the actual level.  Level
+// values reflect some absolute state however, and should be presented to the
+// user as is.
+NNG_DECL int nng_stat_type(nng_stat *);
+
+enum nng_stat_type_enum {
+	NNG_STAT_SCOPE   = 0, // Stat is for scoping, and carries no value
+	NNG_STAT_LEVEL   = 1, // Numeric "absolute" value, diffs meaningless
+	NNG_STAT_COUNTER = 2, // Incrementing value (diffs are meaningful)
+	NNG_STAT_STRING  = 3, // Value is a string
+	NNG_STAT_BOOLEAN = 4, // Value is a boolean
+	NNG_STAT_ID      = 5, // Value is a numeric ID
+};
+
+// nng_stat_unit provides information about the unit for the statistic,
+// such as NNG_UNIT_BYTES or NNG_UNIT_BYTES.  If no specific unit is
+// applicable, such as a relative priority, then NN_UNIT_NONE is returned.
+NNG_DECL int nng_stat_unit(nng_stat *);
+
+enum nng_unit_enum {
+	NNG_UNIT_NONE     = 0, // No special units
+	NNG_UNIT_BYTES    = 1, // Bytes, e.g. bytes sent, etc.
+	NNG_UNIT_MESSAGES = 2, // Messages, one per message
+	NNG_UNIT_MILLIS   = 3, // Milliseconds
+	NNG_UNIT_EVENTS   = 4  // Some other type of event
+};
+
+// nng_stat_value returns returns the actual value of the statistic.
+// Statistic values reflect their value at the time that the corresponding
+// snapshot was updated, and are undefined until an update is performed.
+NNG_DECL uint64_t nng_stat_value(nng_stat *);
+
+// nng_stat_string returns the string associated with a string statistic,
+// or NULL if the statistic is not part of the string.  The value returned
+// is valid until the associated statistic is freed.
+NNG_DECL const char *nng_stat_string(nng_stat *);
+
+// nng_stat_desc returns a human readable description of the statistic.
+// This may be useful for display in diagnostic interfaces, etc.
+NNG_DECL const char *nng_stat_desc(nng_stat *);
+
+// nng_stat_timestamp returns a timestamp (milliseconds) when the statistic
+// was captured.  The base offset is the same as used by nng_clock().
+// We don't use nng_time though, because that's in the supplemental header.
+NNG_DECL uint64_t nng_stat_timestamp(nng_stat *);
+
+// Device functionality.  This connects two sockets together in a device,
+// which means that messages from one side are forwarded to the other.
+NNG_DECL int nng_device(nng_socket, nng_socket);
+
+// Symbol name and visibility.  TBD.  The only symbols that really should
+// be directly exported to runtimes IMO are the option symbols.  And frankly
+// they have enough special logic around them that it might be best not to
+// automate the promotion of them to other APIs.  This is an area open
+// for discussion.
+
+// Error codes.  These generally have different values from UNIX errnos,
+// so take care about converting them.  The one exception is that 0 is
+// unambigiously "success".
+//
+// NNG_SYSERR is a special code, which allows us to wrap errors from the
+// underlying operating system.  We generally prefer to map errors to one
+// of the above, but if we cannot, then we just encode an error this way.
+// The bit is large enough to accommodate all known UNIX and Win32 error
+// codes.  We try hard to match things semantically to one of our standard
+// errors.  For example, a connection reset or aborted we treat as a
+// closed connection, because that's basically what it means.  (The remote
+// peer closed the connection.)  For certain kinds of resource exhaustion
+// we treat it the same as memory.  But for files, etc. that's OS-specific,
+// and we use the generic below.  Some of the above error codes we use
+// internally, and the application should never see (e.g. NNG_EINTR).
+//
+// NNG_ETRANERR is like ESYSERR, but is used to wrap transport specific
+// errors, from different transports.  It should only be used when none
+// of the other options are available.
+
+enum nng_errno_enum {
+	NNG_EINTR        = 1,
+	NNG_ENOMEM       = 2,
+	NNG_EINVAL       = 3,
+	NNG_EBUSY        = 4,
+	NNG_ETIMEDOUT    = 5,
+	NNG_ECONNREFUSED = 6,
+	NNG_ECLOSED      = 7,
+	NNG_EAGAIN       = 8,
+	NNG_ENOTSUP      = 9,
+	NNG_EADDRINUSE   = 10,
+	NNG_ESTATE       = 11,
+	NNG_ENOENT       = 12,
+	NNG_EPROTO       = 13,
+	NNG_EUNREACHABLE = 14,
+	NNG_EADDRINVAL   = 15,
+	NNG_EPERM        = 16,
+	NNG_EMSGSIZE     = 17,
+	NNG_ECONNABORTED = 18,
+	NNG_ECONNRESET   = 19,
+	NNG_ECANCELED    = 20,
+	NNG_ENOFILES     = 21,
+	NNG_ENOSPC       = 22,
+	NNG_EEXIST       = 23,
+	NNG_EREADONLY    = 24,
+	NNG_EWRITEONLY   = 25,
+	NNG_ECRYPTO      = 26,
+	NNG_EPEERAUTH    = 27,
+	NNG_ENOARG       = 28,
+	NNG_EAMBIGUOUS   = 29,
+	NNG_EBADTYPE     = 30,
+	NNG_EINTERNAL    = 1000,
+	NNG_ESYSERR      = 0x10000000,
+	NNG_ETRANERR     = 0x20000000
+};
+
+// URL support.  We frequently want to process a URL, and these methods
+// give us a convenient way of doing so.
+
+typedef struct nng_url {
+	char *u_rawurl;   // never NULL
+	char *u_scheme;   // never NULL
+	char *u_userinfo; // will be NULL if not specified
+	char *u_host;     // including colon and port
+	char *u_hostname; // name only, will be "" if not specified
+	char *u_port;     // port, will be "" if not specified
+	char *u_path;     // path, will be "" if not specified
+	char *u_query;    // without '?', will be NULL if not specified
+	char *u_fragment; // without '#', will be NULL if not specified
+	char *u_requri;   // includes query and fragment, "" if not specified
+} nng_url;
+
+// nng_url_parse parses a URL string into a structured form.
+// Note that the u_port member will be filled out with a numeric
+// port if one isn't specified and a default port is appropriate for
+// the scheme.  The URL structure is allocated, along with individual
+// members.  It can be freed with nng_url_free.
+NNG_DECL int nng_url_parse(nng_url **, const char *);
+
+// nng_url_free frees a URL structure that was created by nng_url_parse9().
+NNG_DECL void nng_url_free(nng_url *);
+
+// nng_url_clone clones a URL structure.
+NNG_DECL int nng_url_clone(nng_url **, const nng_url *);
+
+// nng_version returns the library version as a human readable string.
+NNG_DECL const char *nng_version(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_H
diff --git a/aBuild/nng/include/nng/protocol/bus0/bus.h b/aBuild/nng/include/nng/protocol/bus0/bus.h
new file mode 100644
index 0000000..c8c23d8
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/bus0/bus.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_BUS0_BUS_H
+#define NNG_PROTOCOL_BUS0_BUS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_bus0_open(nng_socket *);
+
+NNG_DECL int nng_bus0_open_raw(nng_socket *);
+
+#ifndef nng_bus_open
+#define nng_bus_open nng_bus0_open
+#endif
+
+#ifndef nng_bus_open_raw
+#define nng_bus_open_raw nng_bus0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_BUS0_BUS_H
diff --git a/aBuild/nng/include/nng/protocol/pair0/pair.h b/aBuild/nng/include/nng/protocol/pair0/pair.h
new file mode 100644
index 0000000..1356f1c
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pair0/pair.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PAIR0_PAIR_H
+#define NNG_PROTOCOL_PAIR0_PAIR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_pair0_open(nng_socket *);
+
+NNG_DECL int nng_pair0_open_raw(nng_socket *);
+
+#ifndef nng_pair_open
+#define nng_pair_open nng_pair0_open
+#endif
+
+#ifndef nng_pair_open_raw
+#define nng_pair_open_raw nng_pair0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PAIR0_PAIR_H
diff --git a/aBuild/nng/include/nng/protocol/pair1/pair.h b/aBuild/nng/include/nng/protocol/pair1/pair.h
new file mode 100644
index 0000000..85da9d4
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pair1/pair.h
@@ -0,0 +1,35 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PAIR1_PAIR_H
+#define NNG_PROTOCOL_PAIR1_PAIR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_pair1_open(nng_socket *);
+NNG_DECL int nng_pair1_open_raw(nng_socket *);
+
+#ifndef nng_pair_open
+#define nng_pair_open nng_pair1_open
+#endif
+
+#ifndef nng_pair_open_raw
+#define nng_pair_open_raw nng_pair1_open_raw
+#endif
+
+#define NNG_OPT_PAIR1_POLY "pair1:polyamorous"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PAIR1_PAIR_H
diff --git a/aBuild/nng/include/nng/protocol/pipeline0/pull.h b/aBuild/nng/include/nng/protocol/pipeline0/pull.h
new file mode 100644
index 0000000..1c5d63e
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pipeline0/pull.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PIPELINE0_PULL_H
+#define NNG_PROTOCOL_PIPELINE0_PULL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_pull0_open(nng_socket *);
+NNG_DECL int nng_pull0_open_raw(nng_socket *);
+
+#ifndef nng_pull_open
+#define nng_pull_open nng_pull0_open
+#endif
+
+#ifndef nng_pull_open_raw
+#define nng_pull_open_raw nng_pull0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PIPELINE0_PULL_H
diff --git a/aBuild/nng/include/nng/protocol/pipeline0/push.h b/aBuild/nng/include/nng/protocol/pipeline0/push.h
new file mode 100644
index 0000000..a1384e0
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pipeline0/push.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PIPELINE0_PUSH_H
+#define NNG_PROTOCOL_PIPELINE0_PUSH_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_push0_open(nng_socket *);
+NNG_DECL int nng_push0_open_raw(nng_socket *);
+
+#ifndef nng_push_open
+#define nng_push_open nng_push0_open
+#endif
+
+#ifndef nng_push_open_raw
+#define nng_push_open_raw nng_push0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PIPELINE0_PUSH_H
diff --git a/aBuild/nng/include/nng/protocol/pubsub0/pub.h b/aBuild/nng/include/nng/protocol/pubsub0/pub.h
new file mode 100644
index 0000000..877f2f1
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pubsub0/pub.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PUBSUB0_PUB_H
+#define NNG_PROTOCOL_PUBSUB0_PUB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_pub0_open(nng_socket *);
+NNG_DECL int nng_pub0_open_raw(nng_socket *);
+
+#ifndef nng_pub_open
+#define nng_pub_open nng_pub0_open
+#endif
+
+#ifndef nng_pub_open_raw
+#define nng_pub_open_raw nng_pub0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PUBSUB0_PUB_H
diff --git a/aBuild/nng/include/nng/protocol/pubsub0/sub.h b/aBuild/nng/include/nng/protocol/pubsub0/sub.h
new file mode 100644
index 0000000..acb5cda
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/pubsub0/sub.h
@@ -0,0 +1,37 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_PUBSUB0_SUB_H
+#define NNG_PROTOCOL_PUBSUB0_SUB_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_sub0_open(nng_socket *);
+
+NNG_DECL int nng_sub0_open_raw(nng_socket *);
+
+#ifndef nng_sub_open
+#define nng_sub_open nng_sub0_open
+#endif
+
+#ifndef nng_sub_open_raw
+#define nng_sub_open_raw nng_sub0_open_raw
+#endif
+
+#define NNG_OPT_SUB_SUBSCRIBE "sub:subscribe"
+#define NNG_OPT_SUB_UNSUBSCRIBE "sub:unsubscribe"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_PUBSUB0_SUB_H
diff --git a/aBuild/nng/include/nng/protocol/reqrep0/rep.h b/aBuild/nng/include/nng/protocol/reqrep0/rep.h
new file mode 100644
index 0000000..612127a
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/reqrep0/rep.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_REQREP0_REP_H
+#define NNG_PROTOCOL_REQREP0_REP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_rep0_open(nng_socket *);
+NNG_DECL int nng_rep0_open_raw(nng_socket *);
+
+#ifndef nng_rep_open
+#define nng_rep_open nng_rep0_open
+#endif
+
+#ifndef nng_rep_open
+#define nng_rep_open_raw nng_rep0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_REQREP0_REP_H
diff --git a/aBuild/nng/include/nng/protocol/reqrep0/req.h b/aBuild/nng/include/nng/protocol/reqrep0/req.h
new file mode 100644
index 0000000..392c793
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/reqrep0/req.h
@@ -0,0 +1,34 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_REQREP0_REQ_H
+#define NNG_PROTOCOL_REQREP0_REQ_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_req0_open(nng_socket *);
+NNG_DECL int nng_req0_open_raw(nng_socket *);
+
+#ifndef nng_req_open
+#define nng_req_open nng_req0_open
+#endif
+#ifndef nng_req_open_raw
+#define nng_req_open_raw nng_req0_open_raw
+#endif
+
+#define NNG_OPT_REQ_RESENDTIME "req:resend-time"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_REQREP0_REQ_H
diff --git a/aBuild/nng/include/nng/protocol/survey0/respond.h b/aBuild/nng/include/nng/protocol/survey0/respond.h
new file mode 100644
index 0000000..b865b2a
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/survey0/respond.h
@@ -0,0 +1,33 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_SURVEY0_RESPOND_H
+#define NNG_PROTOCOL_SURVEY0_RESPOND_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_respondent0_open(nng_socket *);
+NNG_DECL int nng_respondent0_open_raw(nng_socket *);
+
+#ifndef nng_respondent_open
+#define nng_respondent_open nng_respondent0_open
+#endif
+
+#ifndef nng_respondent_open_raw
+#define nng_respondent_open_raw nng_respondent0_open_raw
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_SURVEY0_RESPOND_H
diff --git a/aBuild/nng/include/nng/protocol/survey0/survey.h b/aBuild/nng/include/nng/protocol/survey0/survey.h
new file mode 100644
index 0000000..37f76fb
--- /dev/null
+++ b/aBuild/nng/include/nng/protocol/survey0/survey.h
@@ -0,0 +1,35 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_PROTOCOL_SURVEY0_SURVEY_H
+#define NNG_PROTOCOL_SURVEY0_SURVEY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+NNG_DECL int nng_surveyor0_open(nng_socket *);
+NNG_DECL int nng_surveyor0_open_raw(nng_socket *);
+
+#ifndef nng_surveyor_open
+#define nng_surveyor_open nng_surveyor0_open
+#endif
+
+#ifndef nng_surveyor_open_raw
+#define nng_surveyor_open_raw nng_surveyor0_open_raw
+#endif
+
+#define NNG_OPT_SURVEYOR_SURVEYTIME "surveyor:survey-time"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_PROTOCOL_SURVEY0_SURVEY_H
diff --git a/aBuild/nng/include/nng/supplemental/http/http.h b/aBuild/nng/include/nng/supplemental/http/http.h
new file mode 100644
index 0000000..d085498
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/http/http.h
@@ -0,0 +1,528 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_HTTP_HTTP_H
+#define NNG_SUPPLEMENTAL_HTTP_HTTP_H
+
+// HTTP API.  Only present if HTTP support compiled into the library.
+// Functions will return NNG_ENOTSUP (or NULL or 0 as appropriate)
+// if the library lacks support for HTTP.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+struct nng_tls_config;
+
+// HTTP status codes.  This list is not exhaustive.
+enum nng_http_status {
+	NNG_HTTP_STATUS_CONTINUE                 = 100,
+	NNG_HTTP_STATUS_SWITCHING                = 101,
+	NNG_HTTP_STATUS_PROCESSING               = 102,
+	NNG_HTTP_STATUS_OK                       = 200,
+	NNG_HTTP_STATUS_CREATED                  = 201,
+	NNG_HTTP_STATUS_ACCEPTED                 = 202,
+	NNG_HTTP_STATUS_NOT_AUTHORITATIVE        = 203,
+	NNG_HTTP_STATUS_NO_CONTENT               = 204,
+	NNG_HTTP_STATUS_RESET_CONTENT            = 205,
+	NNG_HTTP_STATUS_PARTIAL_CONTENT          = 206,
+	NNG_HTTP_STATUS_MULTI_STATUS             = 207,
+	NNG_HTTP_STATUS_ALREADY_REPORTED         = 208,
+	NNG_HTTP_STATUS_IM_USED                  = 226,
+	NNG_HTTP_STATUS_MULTIPLE_CHOICES         = 300,
+	NNG_HTTP_STATUS_STATUS_MOVED_PERMANENTLY = 301,
+	NNG_HTTP_STATUS_FOUND                    = 302,
+	NNG_HTTP_STATUS_SEE_OTHER                = 303,
+	NNG_HTTP_STATUS_NOT_MODIFIED             = 304,
+	NNG_HTTP_STATUS_USE_PROXY                = 305,
+	NNG_HTTP_STATUS_TEMPORARY_REDIRECT       = 307,
+	NNG_HTTP_STATUS_PERMANENT_REDIRECT       = 308,
+	NNG_HTTP_STATUS_BAD_REQUEST              = 400,
+	NNG_HTTP_STATUS_UNAUTHORIZED             = 401,
+	NNG_HTTP_STATUS_PAYMENT_REQUIRED         = 402,
+	NNG_HTTP_STATUS_FORBIDDEN                = 403,
+	NNG_HTTP_STATUS_NOT_FOUND                = 404,
+	NNG_HTTP_STATUS_METHOD_NOT_ALLOWED       = 405,
+	NNG_HTTP_STATUS_NOT_ACCEPTABLE           = 406,
+	NNG_HTTP_STATUS_PROXY_AUTH_REQUIRED      = 407,
+	NNG_HTTP_STATUS_REQUEST_TIMEOUT          = 408,
+	NNG_HTTP_STATUS_CONFLICT                 = 409,
+	NNG_HTTP_STATUS_GONE                     = 410,
+	NNG_HTTP_STATUS_LENGTH_REQUIRED          = 411,
+	NNG_HTTP_STATUS_PRECONDITION_FAILED      = 412,
+	NNG_HTTP_STATUS_PAYLOAD_TOO_LARGE        = 413,
+	NNG_HTTP_STATUS_ENTITY_TOO_LONG          = 414,
+	NNG_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE   = 415,
+	NNG_HTTP_STATUS_RANGE_NOT_SATISFIABLE    = 416,
+	NNG_HTTP_STATUS_EXPECTATION_FAILED       = 417,
+	NNG_HTTP_STATUS_TEAPOT                   = 418,
+	NNG_HTTP_STATUS_UNPROCESSABLE_ENTITY     = 422,
+	NNG_HTTP_STATUS_LOCKED                   = 423,
+	NNG_HTTP_STATUS_FAILED_DEPENDENCY        = 424,
+	NNG_HTTP_STATUS_UPGRADE_REQUIRED         = 426,
+	NNG_HTTP_STATUS_PRECONDITION_REQUIRED    = 428,
+	NNG_HTTP_STATUS_TOO_MANY_REQUESTS        = 429,
+	NNG_HTTP_STATUS_HEADERS_TOO_LARGE        = 431,
+	NNG_HTTP_STATUS_UNAVAIL_LEGAL_REASONS    = 451,
+	NNG_HTTP_STATUS_INTERNAL_SERVER_ERROR    = 500,
+	NNG_HTTP_STATUS_NOT_IMPLEMENTED          = 501,
+	NNG_HTTP_STATUS_BAD_GATEWAY              = 502,
+	NNG_HTTP_STATUS_SERVICE_UNAVAILABLE      = 503,
+	NNG_HTTP_STATUS_GATEWAY_TIMEOUT          = 504,
+	NNG_HTTP_STATUS_HTTP_VERSION_NOT_SUPP    = 505,
+	NNG_HTTP_STATUS_VARIANT_ALSO_NEGOTIATES  = 506,
+	NNG_HTTP_STATUS_INSUFFICIENT_STORAGE     = 507,
+	NNG_HTTP_STATUS_LOOP_DETECTED            = 508,
+	NNG_HTTP_STATUS_NOT_EXTENDED             = 510,
+	NNG_HTTP_STATUS_NETWORK_AUTH_REQUIRED    = 511,
+};
+
+// nng_http_req represents an HTTP request.
+typedef struct nng_http_req nng_http_req;
+
+// nng_http_req_alloc creates a vanilla HTTP request object.  The object is
+// initialized with the given URL object for an HTTP/1.1 GET request by
+// default. It also adds the Host: header required for HTTP/1.1.  If the
+// url is NULL, then the uri and Host: header are uninitialized, and will
+// need to be set explicitly.
+NNG_DECL int nng_http_req_alloc(nng_http_req **, const nng_url *);
+
+// nng_http_req_free frees an HTTP request object.
+NNG_DECL void nng_http_req_free(nng_http_req *);
+
+// nng_http_req_get_method returns the method.
+NNG_DECL const char *nng_http_req_get_method(nng_http_req *);
+
+// nng_http_req_get_version returns the version, usually HTTP/1.1.
+NNG_DECL const char *nng_http_req_get_version(nng_http_req *);
+
+// nng_http_req_get_uri returns the "abs-uri", which is URL without
+// the scheme, host, or port.
+NNG_DECL const char *nng_http_req_get_uri(nng_http_req *);
+
+// nng_http_req_set_header sets an HTTP header, replacing any previous value
+// that might have been present.
+NNG_DECL int nng_http_req_set_header(
+    nng_http_req *, const char *, const char *);
+
+// nng_http_req_add_header adds an HTTP header, without disrupting any other
+// with the same name that might have been present.
+NNG_DECL int nng_http_req_add_header(
+    nng_http_req *, const char *, const char *);
+
+// nng_http_req_del_header deletes all occurrences of a named header.
+NNG_DECL int nng_http_req_del_header(nng_http_req *, const char *);
+
+// nng_http_req_get_header looks up a header with the named, returns NULL
+// if not found.
+NNG_DECL const char *nng_http_req_get_header(nng_http_req *, const char *);
+
+// nng_http_req_set_method is used to change the method of a request.
+// The method should be an upper case HTTP method, like POST, or DELETE.
+// Null sets the default ("GET").
+NNG_DECL int nng_http_req_set_method(nng_http_req *, const char *);
+
+// nng_http_req_set_version is used to change the version of a request.
+// Normally the version is "HTTP/1.1".  Note that the framework does
+// not support HTTP/2 at all.  Null sets the default ("HTTP/1.1").
+NNG_DECL int nng_http_req_set_version(nng_http_req *, const char *);
+
+// nng_http_req_set_uri is used to change the URI of a request.  This
+// should be an "abs-uri", that is a path, plus query and fragment if
+// needed.  The scheme, host, and port don't belong here.  The URI should
+// start with a leading '/' per HTTP.
+NNG_DECL int nng_http_req_set_uri(nng_http_req *, const char *);
+
+// nng_http_req_set_data adds entity data to the request.  The
+// data object must persist (so only really useful for static data).
+// The content-length header is updated as well, but the caller should
+// probably set the content-type header.
+NNG_DECL int nng_http_req_set_data(nng_http_req *, const void *, size_t);
+
+// nng_http_req_copy_data adds entity data to the response. A private
+// copy of the data is made (will be freed with the request).
+// The content-length header is updated as well, but the caller should
+// probably set the content-type header.
+NNG_DECL int nng_http_req_copy_data(nng_http_req *, const void *, size_t);
+
+// nng_http_req_get_data gets the data for the response.
+NNG_DECL void nng_http_req_get_data(nng_http_req *, void **, size_t *);
+
+// nng_http_res represents an HTTP response.
+typedef struct nng_http_res nng_http_res;
+
+// nng_http_res_alloc creates a vanilla HTTP response object.  The object is
+// initialized for an HTTP/1.1 200 OK response by default.
+NNG_DECL int nng_http_res_alloc(nng_http_res **);
+
+// nng_http_res_alloc_error creates an error HTTP response object.  The object
+// is initialized for an HTTP/1.1 response, and contains an associated
+// generic HTML error page.
+NNG_DECL int nng_http_res_alloc_error(nng_http_res **, uint16_t);
+
+// nng_http_res_free frees an HTTP response object.
+NNG_DECL void nng_http_res_free(nng_http_res *);
+
+// nng_http_res_get_status returns the HTTP status code from the server.
+NNG_DECL uint16_t nng_http_res_get_status(nng_http_res *);
+
+// nng_http_res_set_status sets the HTTP status code.
+NNG_DECL int nng_http_res_set_status(nng_http_res *, uint16_t);
+
+// nng_http_res_get_reason returns the human readable status message
+// that the server responds (or responded) with.
+NNG_DECL const char *nng_http_res_get_reason(nng_http_res *);
+
+// nng_http_res_set_rason sets the human readable status message.
+// NULL means that a default reason is used based on the status code.
+NNG_DECL int nng_http_res_set_reason(nng_http_res *, const char *);
+
+// nng_http_res_set_header sets an HTTP header, replacing any previous value
+// that might have been present.
+NNG_DECL int nng_http_res_set_header(
+    nng_http_res *, const char *, const char *);
+
+// nng_http_res_add_header adds an HTTP header, without disrupting any other
+// with the same name that might have been present.
+NNG_DECL int nng_http_res_add_header(
+    nng_http_res *, const char *, const char *);
+
+// nng_http_res_del_header deletes all occurrences of a named header.
+NNG_DECL int nng_http_res_del_header(nng_http_res *, const char *);
+
+// nng_http_res_get_header looks up a header with the named, returns NULL
+// if not found.
+NNG_DECL const char *nng_http_res_get_header(nng_http_res *, const char *);
+
+// nng_http_res_set_version is used to change the version of a response.
+// Normally the version is "HTTP/1.1".  Note that the framework does
+// not support HTTP/2 at all.  NULL sets the default ("HTTP/1.1").
+NNG_DECL int nng_http_res_set_version(nng_http_res *, const char *);
+
+// nng_http_res_get_version returns the version, usually HTTP/1.1.
+NNG_DECL const char *nng_http_res_get_version(nng_http_res *);
+
+// nng_http_res_get_data gets the data for the response.
+NNG_DECL void nng_http_res_get_data(nng_http_res *, void **, size_t *);
+
+// nng_http_res_set_data adds entity data to the response.  The
+// data object must persist (so only really useful for static data).
+// The content-length header is updated as well, but the caller should
+// probably set the content-type header.
+NNG_DECL int nng_http_res_set_data(nng_http_res *, const void *, size_t);
+
+// nng_http_res_copy_data adds entity data to the response. A private
+// copy of the data is made (will be freed with the request).
+// The content-length header is updated as well, but the caller should
+// probably set the content-type header.
+NNG_DECL int nng_http_res_copy_data(nng_http_res *, const void *, size_t);
+
+// An nng_http_conn represents an underlying "connection".  It may be
+// a TCP channel, or a TLS channel, but the main thing is that this is
+// normally only used for exchanging HTTP requests and responses.
+typedef struct nng_http_conn nng_http_conn;
+
+// nng_http_conn_close closes the underlying channel.  Applications should
+// not use this channel after this operation is performed.
+NNG_DECL void nng_http_conn_close(nng_http_conn *);
+
+// nng_http_conn_read attempts to read data from the connection.  This
+// completes as soon as at least one byte is read; it does not wait
+// for the entire aio to be filled.
+NNG_DECL void nng_http_conn_read(nng_http_conn *, nng_aio *);
+
+// nng_http_conn_read_all is like nng_http_conn_read, but it does not
+// finish until either all the requested data is read, or an error occurs.
+NNG_DECL void nng_http_conn_read_all(nng_http_conn *, nng_aio *);
+
+// nng_http_conn_write attempts to write data, but it can write less
+// than the amount requested. (It completes as soon as at least one
+// byte is written.)
+NNG_DECL void nng_http_conn_write(nng_http_conn *, nng_aio *);
+
+// nng_http_conn_write_all is like nng_http_conn_write, but it does not
+// finish until either all the requested data is written, or an error occurs.
+NNG_DECL void nng_http_conn_write_all(nng_http_conn *, nng_aio *);
+
+// nng_http_conn_write_req writes the entire request.  It will also write any
+// data that has been attached.
+NNG_DECL void nng_http_conn_write_req(
+    nng_http_conn *, nng_http_req *, nng_aio *);
+
+// nng_http_conn_write_res writes the entire response.  It will also write any
+// data that has been attached.
+NNG_DECL void nng_http_conn_write_res(
+    nng_http_conn *, nng_http_res *, nng_aio *);
+
+// nng_http_conn_read_req reads an entire request, EXCEPT for any entity
+// data.  The caller is responsible for processing the headers in the request
+// and reading any submitted entity data itself.
+NNG_DECL void nng_http_conn_read_req(
+    nng_http_conn *, nng_http_req *, nng_aio *);
+
+// nng_http_conn_read_res reads an entire response, EXCEPT for any entity
+// data.  The caller is responsible for processing the headers in the response
+// and reading any submitted entity data itself.
+NNG_DECL void nng_http_conn_read_res(
+    nng_http_conn *, nng_http_res *, nng_aio *);
+
+// nng_http_req_reset resets the request to an initially allocated state.
+NNG_DECL void nng_http_req_reset(nng_http_req *);
+
+// nng_http_res_reset resets the response to an initially allocated state.
+NNG_DECL void nng_http_res_reset(nng_http_res *);
+
+// nng_http_handler is a handler used on the server side to handle HTTP
+// requests coming into a specific URL.
+typedef struct nng_http_handler nng_http_handler;
+
+// nng_http_handler_alloc creates a server handler object, for the supplied
+// absolute URI (path only) with the callback.  By default the handler
+// is assumed to handle only GET requests (and implictly HEAD requests
+// as well.)
+//
+// Note that methods which modify a handler cannot be called while the handler
+// is registered with the server, and that a handler can only be registered
+// once per server.
+//
+// The callback function will receive the following arguments (via
+// nng_aio_get_input(): nng_http_request *, nng_http_handler *, and
+// nng_http_conn *.  The first is a request object, for convenience.
+// The second is the handler, from which the callback can obtain any other
+// data it has set.  The final is the http connection, which can be used
+// to hijack the session.
+//
+// Upon completion, the handler should store an nng_http_res * as the
+// first output using nng_aio_set_output.  If it does not do so, or supplies
+// NULL, then it must send a response itself.
+//
+// The callback should return 0 in most circumstances; if it returns anything
+// other than 0 then the connection is terminated (after possibly sending
+// a 500 error response to the client.)
+NNG_DECL int nng_http_handler_alloc(
+    nng_http_handler **, const char *, void (*)(nng_aio *));
+
+// nng_http_handler_free frees the handler. This actually just drops a
+// reference count on the handler, as it may be in use by an existing
+// server.  The server will also call this when it is destroyed.
+NNG_DECL void nng_http_handler_free(nng_http_handler *);
+
+// nng_http_handler_alloc_file creates a "file" based handler, that
+// serves up static content from the given file path.  The content-type
+// supplied is determined from the file name using a simple built-in map.
+NNG_DECL int nng_http_handler_alloc_file(
+    nng_http_handler **, const char *, const char *);
+
+// nng_http_handler_alloc_static creates a static-content handler.
+// The last argument is the content-type, which may be NULL (in which case
+// "application/octet-stream" is assumed.)
+NNG_DECL int nng_http_handler_alloc_static(
+    nng_http_handler **, const char *, const void *, size_t, const char *);
+
+// nng_http_handler_alloc_redirect creates an HTTP redirect handler.
+// The status is given, along with the new URL.  If the status is 0,
+// then 301 will be used instead.
+NNG_DECL int nng_http_handler_alloc_redirect(
+    nng_http_handler **, const char *, uint16_t, const char *);
+
+// nng_http_handler_alloc_file creates a "directory" based handler, that
+// serves up static content from the given directory tree.  Directories
+// that contain an index.html or index.htm file use that file for the
+// directory content, otherwise a suitable error page is returned (the server
+// does not generate index pages automatically.)  The content-type for
+// files is determined from the file name using a simple built-in map.
+NNG_DECL int nng_http_handler_alloc_directory(
+    nng_http_handler **, const char *, const char *);
+
+// nng_http_handler_set_method sets the method that the handler will be
+// called for.  By default this is GET.  If NULL is supplied for the
+// method, then the handler is executed regardless of method, and must
+// inspect the method itself.
+NNG_DECL int nng_http_handler_set_method(nng_http_handler *, const char *);
+
+// nng_http_handler_set_host sets the Host: that the handler will be
+// called for (to allow for virtual hosts).  If the value is NULL (the
+// default, then the Host: header is not considered when matching the
+// handler.)  Note that the Host: header must match *exactly* (except
+// that case is not considered.)
+NNG_DECL int nng_http_handler_set_host(nng_http_handler *, const char *);
+
+// nng_http_handler_collect_body is used to indicate the server should
+// check for, and process, data sent by the client, which will be attached
+// to the request.  If this is false, then the handler will need to check
+// for and process any content data.  By default the server will accept
+// up to 1MB.  If the client attempts to send more data than requested,
+// then a 400 Bad Request will be sent back to the client.  To set an
+// unlimited value, use (size_t)-1.  To preclude the client from sending
+// *any* data, use 0.  (The static and file handlers use 0 by default.)
+NNG_DECL int nng_http_handler_collect_body(nng_http_handler *, bool, size_t);
+
+// nng_http_handler_set_tree indicates that the handler is being registered
+// for a heirarchical tree, rather than just a single path, so it will be
+// called for all child paths supplied.  By default the handler is only
+// called for an exact path match.
+NNG_DECL int nng_http_handler_set_tree(nng_http_handler *);
+
+// nng_http_handler_set_data is used to store additional data, along with
+// a possible clean up routine.  (The clean up is a custom deallocator and
+// will be called with the supplied data as an argument, when the handler
+// is being deallocated.)
+NNG_DECL int nng_http_handler_set_data(
+    nng_http_handler *, void *, void (*)(void *));
+
+// nng_http_handler_get_data returns the data that was previously stored.
+NNG_DECL void *nng_http_handler_get_data(nng_http_handler *);
+
+// nng_http_server is a handle to an HTTP server instance.  Servers
+// only serve a single port / address at this time.
+
+typedef struct nng_http_server nng_http_server;
+
+// nng_http_server_hold gets a server structure, using the address determined
+// from the URL.  If a server already exists, then a hold is placed on it, and
+// that instance is returned.  If no such server exists, then a new instance
+// is created.
+NNG_DECL int nng_http_server_hold(nng_http_server **, const nng_url *);
+
+// nng_http_server_release releases the hold on the server.  If this is the
+// last instance of the server, then it is shutdown and resources are freed.
+NNG_DECL void nng_http_server_release(nng_http_server *);
+
+// nng_http_server_start starts the server handling HTTP.  Once this is
+// called, it will not be possible to change certain parameters (such as
+// any TLS configuration).
+NNG_DECL int nng_http_server_start(nng_http_server *);
+
+// nng_http_server_stop stops the server.  No new client connections are
+// accepted after this returns.  Once a server is stopped fully, the
+// instance will no longer be returned by nng_http_server_hold, as the
+// server may not be reused.
+NNG_DECL void nng_http_server_stop(nng_http_server *);
+
+// nng_http_server_add_handler registers a handler on the server.
+// This function will return NNG_EADDRINUSE if a conflicting handler
+// is already registered (i.e. a handler with the same value for Host,
+// Method, and URL.)
+NNG_DECL int nng_http_server_add_handler(
+    nng_http_server *, nng_http_handler *);
+
+// nni_http_del_handler removes the given handler.  The caller is
+// responsible for finalizing it afterwards.  If the handler was not found
+// (not registered), NNG_ENOENT is returned.  In this case it is unsafe
+// to make assumptions about the validity of the handler.
+NNG_DECL int nng_http_server_del_handler(
+    nng_http_server *, nng_http_handler *);
+
+// nng_http_server_set_tls adds a TLS configuration to the server,
+// and enables the use of it.  This returns NNG_EBUSY if the server is
+// already started.   This wipes out the entire TLS configuration on the
+// server client, so the caller must have configured it reasonably.
+// This API is not recommended unless the caller needs complete control
+// over the TLS configuration.
+NNG_DECL int nng_http_server_set_tls(
+    nng_http_server *, struct nng_tls_config *);
+
+// nng_http_server_get_tls obtains the TLS configuration if one is present,
+// or returns NNG_EINVAL.  The TLS configuration is invalidated if the
+// nng_http_server_set_tls function is called, so be careful.
+NNG_DECL int nng_http_server_get_tls(
+    nng_http_server *, struct nng_tls_config **);
+
+// nng_http_server_set_error_page sets a custom error page (HTML) content
+// to be sent for the given error code.  This is used when the error is
+// generated internally by the framework, or when the application returns
+// the response back to the server via the handler's aio, and the response
+// was allocated with nng_http_res_alloc_error.  If the response was not
+// allocated this way, or the application writes the response itself instead
+// of letting the server do so, then this setting will be ignored.
+NNG_DECL int nng_http_server_set_error_page(
+    nng_http_server *, uint16_t, const char *);
+
+// nng_http_server_set_error_file works like nng_http_server_error_page,
+// except that the content is loaded from the named file path.  The contents
+// are loaded at the time this function is called, so this function should be
+// called anytime the contents of the named file have changed.
+NNG_DECL int nng_http_server_set_error_file(
+    nng_http_server *, uint16_t, const char *);
+
+// nng_http_server_res_error takes replaces the body of the response with
+// a custom error page previously set for the server, using the status
+// of the response.  The response must have the status set first using
+// nng_http_res_set_status or implicitly via nng_http_res_alloc_error.
+NNG_DECL int nng_http_server_res_error(nng_http_server *, nng_http_res *);
+
+// nng_http_hijack is intended to be called by a handler that wishes to
+// take over the processing of the HTTP session -- usually to change protocols
+// (such as in the case of websocket).  The caller is responsible for the
+// final disposal of the associated nng_http_conn.  Also, this completely
+// disassociates the http session from the server, so the server may be
+// stopped or destroyed without affecting the hijacked session.  Note also
+// that the hijacker will need to issue any HTTP reply itself.  Finally,
+// when a session is hijacked, the caller is also responsible for disposing
+// of the request structure.  (Some hijackers may keep the request for
+// further processing.)
+
+NNG_DECL int nng_http_hijack(nng_http_conn *);
+
+// nng_http_client represents a "client" object.  Clients can be used
+// to create HTTP connections.  At present, connections are not cached
+// or reused, but that could change in the future.
+typedef struct nng_http_client nng_http_client;
+
+// nng_http_client_alloc allocates a client object, associated with
+// the given URL.
+NNG_DECL int nng_http_client_alloc(nng_http_client **, const nng_url *);
+
+// nng_http_client_free frees the client.  Connections created by the
+// the client are not necessarily closed.
+NNG_DECL void nng_http_client_free(nng_http_client *);
+
+// nng_http_client_set_tls sets the TLS configuration.  This wipes out
+// the entire TLS configuration on the client, so the caller must have
+// configured it reasonably.  This API is not recommended unless the
+// caller needs complete control over the TLS configuration.
+NNG_DECL int nng_http_client_set_tls(
+    nng_http_client *, struct nng_tls_config *);
+
+// nng_http_client_get_tls obtains the TLS configuration if one is present,
+// or returns NNG_EINVAL.  The supplied TLS configuration object may
+// be invalidated by any future calls to nni_http_client_set_tls.
+NNG_DECL int nng_http_client_get_tls(
+    nng_http_client *, struct nng_tls_config **);
+
+// nng_http_client_connect establishes a new connection with the server
+// named in the URL used when the client was created.  Once the connection
+// is established, the associated nng_http_conn object pointer is returned
+// in the first (index 0) output for the aio.
+NNG_DECL void nng_http_client_connect(nng_http_client *, nng_aio *);
+
+// nng_http_conn_transact is used to perform a round-trip exchange (i.e. a
+// single HTTP transaction).  It will not automatically close the connection,
+// unless some kind of significant error occurs.  The caller should close
+// the connection if the aio does not complete successfully.
+// Note that this will fail with NNG_ENOTSUP if the server attempts to reply
+// with a chunked transfer encoding.
+NNG_DECL void nng_http_conn_transact(
+    nng_http_conn *, nng_http_req *, nng_http_res *, nng_aio *);
+
+// nng_http_client_transact is used to execute a single transaction to a
+// server. The connection is opened, and will be closed when the transaction is
+// complete.  Note that this will fail with NNG_ENOTSUP if the server attempts
+// to reply with a chunked transfer encoding.
+NNG_DECL void nng_http_client_transact(
+    nng_http_client *, nng_http_req *, nng_http_res *, nng_aio *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_H
diff --git a/aBuild/nng/include/nng/supplemental/ipc/ipc.h b/aBuild/nng/include/nng/supplemental/ipc/ipc.h
new file mode 100644
index 0000000..372b384
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/ipc/ipc.h
@@ -0,0 +1,133 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+// Copyright 2018 Devolutions <info@devolutions.net>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_IPC_IPC_H
+#define NNG_SUPPLEMENTAL_IPC_IPC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <nng/nng.h>
+#include <nng/transport/ipc/ipc.h> // For IPC option names.
+
+// This is our "public" IPC API.  This allows applications to access
+// basic IPC functions, using our AIO framework.  Most applications will
+// not need this.  This supports both UNIX domain sockets (AF_LOCAL),
+// and Windows Named Pipes, depending on the underlying platform.
+
+// nng_ipc represents a single IPC connection.  This is generally
+// a connected stream.
+typedef struct nng_ipc_s nng_ipc;
+
+// nng_ipc_dialer is a dialer object used to create outgoing connections.
+// This is a bit different than a typical BSD socket API, but doing it
+// helps keep the API orthogonal to the listener API.
+typedef struct nng_ipc_dialer_s nng_ipc_dialer;
+
+// nng_ipc_listener is a listener object.  This is used to accept incoming
+// connections.
+typedef struct nng_ipc_listener_s nng_ipc_listener;
+
+// nng_ipc_close closes the connection, but does not release the
+// underlying object.  Operations that may be pending on the connect,
+// as well as further operations, will result in NNG_ECLOSED.
+NNG_DECL void nng_ipc_close(nng_ipc *);
+
+// nng_ipc_free frees the IPC connection, closing it if it is open.
+// This is necessary to release the resources of the IPC object.
+// (It is an error to refer to the IPC object after this is called.)
+NNG_DECL void nng_ipc_free(nng_ipc *);
+
+// nng_ipc_send sends the data in the aio, which should be stored in
+// an iov for the message.  Note that the iov in the aio may be modified,
+// so applications should not assume otherwise.
+NNG_DECL void nng_ipc_send(nng_ipc *, nng_aio *);
+
+// nng_ipc_recv receives data into the iov supplied.  It is possible for
+// the callback to be executed with less data read than requested.  (This
+// is actually pretty likely for bulk transfers.)  The caller should update
+// the iov's and resubmit as needed.
+NNG_DECL void nng_ipc_recv(nng_ipc *, nng_aio *);
+
+// nng_ipc_getopt is used to get options.  The options available are:
+//
+// NNG_OPT_REMADDR         - nng_sockaddr for the connection.
+// NNG_OPT_LOCADD          - nng_sockaddr for the connection.
+// NNG_OPT_IPC_PEER_UID    - peer user ID (if available), uint64_t
+// NNG_OPT_IPC_PEER_GID    - peer group ID (if available), uint64_t
+// NNG_OPT_IPC_PEER_ZONEID - peer zone ID (illumos/Solaris only), uint64_t
+NNG_DECL int nng_ipc_getopt(nng_ipc *, const char *, void *, size_t *);
+
+// nng_ipc_setopt is used to set options.  There are presently no such
+// options defined for connections.
+NNG_DECL int nng_ipc_setopt(nng_ipc *, const char *, const void *, size_t);
+
+// nng_ipc_dialer_alloc is used to allocate an IPC dialer.
+NNG_DECL int nng_ipc_dialer_alloc(nng_ipc_dialer **);
+
+// nng_ipc_dialer_close closes the dialer, aborting any pending outbound
+// connection attempts (and preventing any new ones) with NNG_ECLOSED.
+// This does not free the resources associated with the dialer, so the
+// application should still call nng_ipc_dialer_free.  Connections already
+// established by the dialer are unaffected by this call.
+NNG_DECL void nng_ipc_dialer_close(nng_ipc_dialer *);
+
+// nng_ipc_dialer_free is used to free the dialer.  This implicitly calls
+// nng_ipc_dialer_close, then releases the resources associated with the
+// dialer.  It is therefore an error for the application to attempt to use
+// the dialer after this call.
+NNG_DECL void nng_ipc_dialer_free(nng_ipc_dialer *);
+
+// nng_ipc_dialer_dial attempts to create a new connection (nng_ipc *)
+// may making an outbound connect call.  If this succeeds, the aio
+// will return a suitable nng_ipc * in the first output of the aio.
+// (I.e. nng_aio_get_output(aio, 0).)  The destination address to dial
+// is stored in the 2nd argument.
+NNG_DECL void nng_ipc_dialer_dial(
+    nng_ipc_dialer *, const nng_sockaddr *, nng_aio *);
+
+// nng_ipc_listener_alloc creates a listener.
+NNG_DECL int nng_ipc_listener_alloc(nng_ipc_listener **);
+
+// nng_ipc_listener_close closes the listener, unbinding it from
+// any active path if it was previously bound with nng_ipc_listener_listen.
+// This does not completely release the resources associated with the
+// listener, so nng_ipc_listener_free should still be called.
+// Any pending accept calls will be aborted with NNG_ECLOSED, and any
+// future attempts will also result in NNG_ECLOSED.  Connections already
+// established by this listener are unaffected by this call.
+NNG_DECL void nng_ipc_listener_close(nng_ipc_listener *);
+
+// nng_ipc_listener_free frees the listener.  This causes any other
+// outstanding accept calls to return NNG_ECLOSED.  The listener cannot
+// be used by the application after this is called.  This implictly
+// includes a call to nng_ipc_listener_close().
+NNG_DECL void nng_ipc_listener_free(nng_ipc_listener *);
+
+// nng_ipc_listener_listen binds to the IPC address and arranges for
+// the IPC path to be created and bound.  It does not accept any new
+// incoming connections.  This operation is synchronous.
+NNG_DECL int nng_ipc_listener_listen(nng_ipc_listener *, const nng_sockaddr *);
+
+// nng_ipc_listener_accept accepts an incoming connection (creating an
+// nng_ipc * object), and returns it in the nng_aio as the first output
+// on success.
+NNG_DECL void nng_ipc_listener_accept(nng_ipc_listener *, nng_aio *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_SUPPLEMENTAL_IPC_IPC_H
diff --git a/aBuild/nng/include/nng/supplemental/tcp/tcp.h b/aBuild/nng/include/nng/supplemental/tcp/tcp.h
new file mode 100644
index 0000000..295006c
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/tcp/tcp.h
@@ -0,0 +1,154 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_TCP_TCP_H
+#define NNG_SUPPLEMENTAL_TCP_TCP_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <nng/nng.h>
+
+// This is our "public" TCP API.  This allows applications to access
+// basic TCP functions, using our AIO framework.  Most applications will
+// not need this.
+
+// nng_tcp represents a single TCP connection.  This is generally
+// a connected stream.
+typedef struct nng_tcp_s nng_tcp;
+
+// nng_tcp_dialer is a dialer object used to create outgoing connections.
+// This is a bit different than a typical BSD socket API, but doing it
+// helps keep the API orthogonal to the listener API.
+typedef struct nng_tcp_dialer_s nng_tcp_dialer;
+
+// nng_tcp_listener is a listener object.  This is used to accept incoming
+// connections.
+typedef struct nng_tcp_listener_s nng_tcp_listener;
+
+// nng_tcp_close closes the connection, but does not release the
+// underlying object.  Operations that may be pending on the connect,
+// as well as further operations, will result in NNG_ECLOSED.
+NNG_DECL void nng_tcp_close(nng_tcp *);
+
+// nng_tcp_free frees the TCP connection, closing it if it is open.
+// This is necessary to release the resources of the TCP object.
+// (It is an error to refer to the TCP object after this is called.)
+NNG_DECL void nng_tcp_free(nng_tcp *);
+
+// nng_tcp_send sends the data in the aio, which should be stored in
+// an iov for the message.  Note that the iov in the aio may be modified,
+// so applications should not assume otherwise.
+NNG_DECL void nng_tcp_send(nng_tcp *, nng_aio *);
+
+// nng_tcp_recv receives data into the iov supplied.  It is possible for
+// the callback to be executed with less data read than requested.  (This
+// is actually pretty likely for bulk transfers.)  The caller should update
+// the iov's and resubmit as needed.
+NNG_DECL void nng_tcp_recv(nng_tcp *, nng_aio *);
+
+// nng_tcp_getopt is used to retrieve socket options, using the named
+// option values, like NNG_OPT_TCP_NODELAY or NNG_OPT_REMADDR.
+NNG_DECL int nng_tcp_getopt(nng_tcp *, const char *, void *, size_t *);
+
+// nng_tcp_setopt is used to set socket options, using the named
+// option values, like NNG_OPT_TCP_KEEPALIVE.
+NNG_DECL int nng_tcp_setopt(nng_tcp *, const char *, const void *, size_t);
+
+// nng_tcp_dialer_alloc is used to allocate a TCP dialer.
+NNG_DECL int nng_tcp_dialer_alloc(nng_tcp_dialer **);
+
+// nng_tcp_dialer_close closes the dialer, aborting any pending outbound
+// connection attempts (and preventing any new ones) with NNG_ECLOSED.
+// This does not free the resources associated with the dialer, so the
+// application should still call nng_tcp_dialer_free.  Connections already
+// established by the dialer are unaffected by this call.
+NNG_DECL void nng_tcp_dialer_close(nng_tcp_dialer *);
+
+// nng_tcp_dialer_free is used to free the dialer.  This implicitly calls
+// nng_tcp_dialer_close, then releases the resources associated with the
+// dialer.  It is therefore an error for the application to attempt to use
+// the dialer after this call.
+NNG_DECL void nng_tcp_dialer_free(nng_tcp_dialer *);
+
+// nng_tcp_dialer_dial attempts to create a new connection (nng_tcp *)
+// may making an outbound connect call.  If this succeeds, the aio
+// will return a suitable nng_tcp * in the first output of the aio.
+// (I.e. nng_aio_get_output(aio, 0).)  The destination address to dial
+// is stored in the 2nd argument.
+NNG_DECL void nng_tcp_dialer_dial(
+    nng_tcp_dialer *, const nng_sockaddr *, nng_aio *);
+
+// nng_tcp_dialer_getopt gets an option.
+NNG_DECL int nng_tcp_dialer_getopt(
+    nng_tcp_dialer *, const char *, void *, size_t *);
+
+// nng_tcp_dialer_setopt sets an option.  This can be done to set the
+// initial values of NNG_OPT_TCP_NODELAY or NNG_OPT_TCP_KEEPALIVE for
+// created connections, for example.  Also, the NNG_OPT_LOCADDR can
+// be set, which sets the source address new connections will be
+// established from -- except that the port is ignored as it is always
+// randomly chosen.
+NNG_DECL int nng_tcp_dialer_setopt(
+    nng_tcp_dialer *, const char *, const void *, size_t);
+
+// nng_tcp_listener_alloc creates a listener.
+NNG_DECL int nng_tcp_listener_alloc(nng_tcp_listener **);
+
+// nng_tcp_listener_close closes the listener, unbinding it from
+// any active ports if it was previously bound with nng_tcp_listener_listen.
+// This does not completely release the resources associated with the
+// listener, so nng_tcp_listener_free should still be called.
+// Any pending accept calls will be aborted with NNG_ECLOSED, and any
+// future attempts will also result in NNG_ECLOSED.  Connections already
+// established by this listener are unaffected by this call.
+NNG_DECL void nng_tcp_listener_close(nng_tcp_listener *);
+
+// nng_tcp_listener_free frees the listener.  This causes any other
+// outstanding accept calls to return NNG_ECLOSED.  The listener cannot
+// be used by the application after this is called.  This implictly
+// includes a call to nng_tcp_listener_close().
+NNG_DECL void nng_tcp_listener_free(nng_tcp_listener *);
+
+// nng_tcp_listener_listen binds to the TCP address and arranges for
+// the TCP port / address to be allocated.  It does not accept any new
+// incoming connections.  (The listenq depth is configured to some reasonable
+// default -- typically around 128.)  This operation is synchronous.
+// A zero valued port may be supplied in the sockaddr, in which case
+// a follow up call to get the NNG_OPT_LOCADDR can be used to determine the
+// bound address.
+NNG_DECL int nng_tcp_listener_listen(nng_tcp_listener *, const nng_sockaddr *);
+
+// nng_tcp_listener_accept accepts an incoming connection (creating an
+// nng_tcp * object), and returns it in the nng_aio as the first output
+// on success.
+NNG_DECL void nng_tcp_listener_accept(nng_tcp_listener *, nng_aio *);
+
+// nng_tcp_listener_getopt gets an option.  A good example of this is to
+// obtain the NNG_OPT_LOCADDR local address after starting the listener
+// on a wild card port (0).
+NNG_DECL int nng_tcp_listener_getopt(
+    nng_tcp_listener *, const char *, void *, size_t *);
+
+// nng_tcp_listener_setopt sets an option.  This can be done to set the
+// initial values of NNG_OPT_TCP_NODELAY or NNG_OPT_TCP_KEEPALIVE for
+// created connections, for example.
+NNG_DECL int nng_tcp_listener_setopt(
+    nng_tcp_listener *, const char *, const void *, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_SUPPLEMENTAL_TCP_TCP_H
diff --git a/aBuild/nng/include/nng/supplemental/tls/tls.h b/aBuild/nng/include/nng/supplemental/tls/tls.h
new file mode 100644
index 0000000..496f02e
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/tls/tls.h
@@ -0,0 +1,180 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_TLS_TLS_H
+#define NNG_SUPPLEMENTAL_TLS_TLS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+// Note that TLS functions may be stubbed out if TLS is not enabled in
+// the build.
+
+// For some transports, we need TLS configuration, including certificates
+// and so forth.  A TLS configuration cannot be changed once it is in use.
+typedef struct nng_tls_config nng_tls_config;
+
+typedef enum nng_tls_mode {
+	NNG_TLS_MODE_CLIENT = 0,
+	NNG_TLS_MODE_SERVER = 1,
+} nng_tls_mode;
+
+typedef enum nng_tls_auth_mode {
+	NNG_TLS_AUTH_MODE_NONE     = 0, // No verification is performed
+	NNG_TLS_AUTH_MODE_OPTIONAL = 1, // Verify cert if presented
+	NNG_TLS_AUTH_MODE_REQUIRED = 2, // Verify cert, close if invalid
+} nng_tls_auth_mode;
+
+// nng_tls_config_alloc creates a TLS configuration using
+// reasonable defaults.  This configuration can be shared
+// with multiple pipes or services/servers.
+NNG_DECL int nng_tls_config_alloc(nng_tls_config **, nng_tls_mode);
+
+// nng_tls_config_hold increments the reference count on the TLS
+// configuration object.  The hold can be dropped by calling
+// nng_tls_config_free later.
+NNG_DECL void nng_tls_config_hold(nng_tls_config *);
+
+// nng_tls_config_free drops the reference count on the TLS
+// configuration object, and if zero, deallocates it.
+NNG_DECL void nng_tls_config_free(nng_tls_config *);
+
+// nng_tls_config_server_name sets the server name.  This is
+// called by clients to set the name that the server supplied
+// certificate should be matched against.  This can also cause
+// the SNI to be sent to the server to tell it which cert to
+// use if it supports more than one.
+NNG_DECL int nng_tls_config_server_name(nng_tls_config *, const char *);
+
+// nng_tls_config_ca_cert configures one or more CAs used for validation
+// of peer certificates.  Multiple CAs (and their chains) may be configured
+// by either calling this multiple times, or by specifying a list of
+// certificates as concatenated data.  The final argument is an optional CRL
+// (revokation list) for the CA, also in PEM.  Both PEM strings are ASCIIZ
+// format (except that the CRL may be NULL).
+NNG_DECL int nng_tls_config_ca_chain(
+    nng_tls_config *, const char *, const char *);
+
+// nng_tls_config_own_cert is used to load our own certificate and public
+// key.  For servers, this may be called more than once to configure multiple
+// different keys, for example with different algorithms depending on what
+// the peer supports. On the client, only a single option is available.
+// The first two arguments are the cert (or validation chain) and the
+// key as PEM format ASCIIZ strings.  The final argument is an optional
+// password and may be NULL.
+NNG_DECL int nng_tls_config_own_cert(
+    nng_tls_config *, const char *, const char *, const char *);
+
+// nng_tls_config_key is used to pass our own private key.
+NNG_DECL int nng_tls_config_key(nng_tls_config *, const uint8_t *, size_t);
+
+// nng_tls_config_pass is used to pass a password used to decrypt
+// private keys that are encrypted.
+NNG_DECL int nng_tls_config_pass(nng_tls_config *, const char *);
+
+// nng_tls_config_auth_mode is used to configure the authentication mode use.
+// The default is that servers have this off (i.e. no client authentication)
+// and clients have it on (they verify the server), which matches typical
+// practice.
+NNG_DECL int nng_tls_config_auth_mode(nng_tls_config *, nng_tls_auth_mode);
+
+// nng_tls_config_ca_file is used to pass a CA chain and optional CRL
+// via the filesystem.  If CRL data is present, it must be contained
+// in the file, along with the CA certificate data.  The format is PEM.
+// The path name must be a legal file name.
+NNG_DECL int nng_tls_config_ca_file(nng_tls_config *, const char *);
+
+// nng_tls_config_cert_key_file is used to pass our own certificate and
+// private key data via the filesystem.  Both the key and certificate
+// must be present as PEM blocks in the same file.  A password is used to
+// decrypt the private key if it is encrypted and the password supplied is not
+// NULL. This may be called multiple times on servers, but only once on a
+// client. (Servers can support multiple different certificates and keys for
+// different cryptographic algorithms.  Clients only get one.)
+NNG_DECL int nng_tls_config_cert_key_file(
+    nng_tls_config *, const char *, const char *);
+
+// The rest of the definitions in this file rely upon having support for the
+// TLS supplemental API enabled.  If you don't have this configured in your
+// library, then your programs will not link.
+
+// nng_tls represents a TLS connection over TCP.
+typedef struct nng_tls_s nng_tls;
+
+// nng_tls_dialer is a dialer that creates TLS connections (nng_tls objects)
+// by establishing outgoing connections.
+typedef struct nng_tls_dialer_s nng_tls_dialer;
+
+// nng_tls_listener is a listener that creates TLS connections (nng_tls
+// objects) by accepting incoming connections.
+typedef struct nng_tls_listener_s nng_tls_listener;
+
+// nng_tls_close closes a TLS connection, without releasing the underlying
+// resources.  Use nng_tls_free to release the resources.
+NNG_DECL void nng_tls_close(nng_tls *);
+
+// nng_tls_free frees a TLS connection, and will implicity also close the
+// connection if not already done so.
+NNG_DECL void nng_tls_free(nng_tls *);
+
+NNG_DECL void nng_tls_send(nng_tls *, nng_aio *);
+NNG_DECL void nng_tls_recv(nng_tls *, nng_aio *);
+
+NNG_DECL int nng_tls_getopt(nng_tls *, const char *, void *, size_t *);
+
+// nng_tls_dialer_alloc allocates a dialer that creates TLS connections
+// (nng_tls structures) by connecting to remote servers.
+NNG_DECL int nng_tls_dialer_alloc(nng_tls_dialer **);
+
+// nng_tls_dialer_close closes the dialer, but does not free it's resources.
+NNG_DECL void nng_tls_dialer_close(nng_tls_dialer *);
+
+// nng_tls_dialer_free frees the dialer, implicitly closing it as well.
+NNG_DECL void nng_tls_dialer_free(nng_tls_dialer *);
+
+// nng_tls_dialer_dial attempts to create a new connection (nng_tls object)
+// by dialing to the remote server specified in the aio.  Note that the
+// TLS connection may be returned before the TLS handshake is complete.
+// The remote server will only be verified if a server name has been configured
+// with the NNG_OPT_TLS_SERVER_NAME option (using nng_tls_dialer_setopt).
+NNG_DECL void nng_tls_dialer_dial(
+    nng_tls_dialer *, const nng_sockaddr *, nng_aio *);
+
+// nng_tls_dialer_getopt returns options from the dialer.
+NNG_DECL int nng_tls_dialer_getopt(
+    nng_tls_dialer *, const char *, void *, size_t *);
+
+// nng_tls_dialer_setopt sets options on the dialer.  Options may include
+// NNG_OPT_TLS_CONFIG, as well as various other NNG_OPT_TLS_ options and
+// the TCP options that are valid for TCP dialers as well.
+NNG_DECL int nng_tls_dialer_setopt(
+    nng_tls_dialer *, const char *, const void *, size_t);
+
+NNG_DECL int  nng_tls_listener_alloc(nng_tls_listener **);
+NNG_DECL void nng_tls_listener_close(nng_tls_listener *);
+NNG_DECL void nng_tls_listener_free(nng_tls_listener *);
+NNG_DECL int nng_tls_listener_listen(nng_tls_listener *, const nng_sockaddr *);
+NNG_DECL void nng_tls_listener_accept(nng_tls_listener *, nng_aio *);
+
+NNG_DECL int nng_tls_listener_getopt(
+    nng_tls_listener *, const char *, void *, size_t *);
+
+NNG_DECL int nng_tls_listener_setopt(
+    nng_tls_listener *, const char *, const void *, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_SUPPLEMENTAL_TLS_TLS_H
diff --git a/aBuild/nng/include/nng/supplemental/util/options.h b/aBuild/nng/include/nng/supplemental/util/options.h
new file mode 100644
index 0000000..83969a9
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/util/options.h
@@ -0,0 +1,48 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_UTIL_OPTIONS_H
+#define NNG_SUPPLEMENTAL_UTIL_OPTIONS_H
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// This is a relatively simple "options parsing" library, used to
+// parse command line options.  We would use getopt(3), but there are
+// two problems with getopt(3).  First, it isn't available on all
+// platforms (especially Win32), and second, it doesn't support long
+// options.  We *exclusively* support long options.  POSIX style
+// short option clustering is *NOT* supported.
+
+struct nng_optspec {
+	const char *o_name;  // Long style name (may be NULL for short only)
+	int         o_short; // Short option (no clustering!)
+	int         o_val;   // Value stored on a good parse (>0)
+	bool        o_arg;   // Option takes an argument if true
+};
+
+typedef struct nng_optspec nng_optspec;
+
+// Call with *optidx set to 1 to start parsing for a standard program.
+// The val will store the value of the matched "o_val", optarg will be
+// set to match the option string, and optidx will be increment appropriately.
+// Returns -1 when the end of options is reached, 0 on success, or
+// NNG_EINVAL if the option parse is invalid for any reason.
+NNG_DECL int nng_opts_parse(int argc, char *const *argv,
+    const nng_optspec *opts, int *val, char **optarg, int *optidx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_SUPPLEMENTAL_UTIL_OPTIONS_H
diff --git a/aBuild/nng/include/nng/supplemental/util/platform.h b/aBuild/nng/include/nng/supplemental/util/platform.h
new file mode 100644
index 0000000..0fcc7d1
--- /dev/null
+++ b/aBuild/nng/include/nng/supplemental/util/platform.h
@@ -0,0 +1,106 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_SUPPLEMENTAL_UTIL_PLATFORM_H
+#define NNG_SUPPLEMENTAL_UTIL_PLATFORM_H
+
+// The declarations in this file are provided to assist with application
+// portability.  Conceptually these APIs are based on work we have already
+// done for NNG internals, and we find that they are useful in building
+// portable applications.
+
+// If it is more natural to use native system APIs like pthreads or C11
+// APIs or Windows APIs, then by all means please feel free to simply
+// ignore this.
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// nng_time represents an absolute time since some arbitrary point in the
+// past, measured in milliseconds.  The values are always positive.
+typedef uint64_t nng_time;
+
+// Return an absolute time from some arbitrary point.  The value is
+// provided in milliseconds, and is of limited resolution based on the
+// system clock.  (Do not use it for fine grained performance measurements.)
+NNG_DECL nng_time nng_clock(void);
+
+// Sleep for specified msecs.
+NNG_DECL void nng_msleep(nng_duration);
+
+// nng_thread is a handle to a "thread", which may be a real system
+// thread, or a coroutine on some platforms.
+typedef struct nng_thread nng_thread;
+
+// Create and start a thread.  Note that on some platforms, this might
+// actually be a coroutine, with limitations about what system APIs
+// you can call.  Therefore, these threads should only be used with the
+// I/O APIs provided by nng.  The thread runs until completion.
+NNG_DECL int nng_thread_create(nng_thread **, void (*)(void *), void *);
+
+// Destroy a thread (waiting for it to complete.)  When this function
+// returns all resources for the thread are cleaned up.
+NNG_DECL void nng_thread_destroy(nng_thread *);
+
+// nng_mtx represents a mutex, which is a simple, non-retrant, boolean lock.
+typedef struct nng_mtx nng_mtx;
+
+// nng_mtx_alloc allocates a mutex structure.
+NNG_DECL int nng_mtx_alloc(nng_mtx **);
+
+// nng_mtx_free frees the mutex.  It most not be locked.
+NNG_DECL void nng_mtx_free(nng_mtx *);
+
+// nng_mtx_lock locks the mutex; if it is already locked it will block
+// until it can be locked.  If the caller already holds the lock, the
+// results are undefined (a panic may occur).
+NNG_DECL void nng_mtx_lock(nng_mtx *);
+
+// nng_mtx_unlock unlocks a previously locked mutex.  It is an error to
+// call this on a mutex which is not owned by caller.
+NNG_DECL void nng_mtx_unlock(nng_mtx *);
+
+// nng_cv is a condition variable.  It is always allocated with an
+// associated mutex, which must be held when waiting for it, or
+// when signaling it.
+typedef struct nng_cv nng_cv;
+
+NNG_DECL int nng_cv_alloc(nng_cv **, nng_mtx *);
+
+// nng_cv_free frees the condition variable.
+NNG_DECL void nng_cv_free(nng_cv *);
+
+// nng_cv_wait waits until the condition variable is "signaled".
+NNG_DECL void nng_cv_wait(nng_cv *);
+
+// nng_cv_until waits until either the condition is signaled, or
+// the timeout expires.  It returns NNG_ETIMEDOUT in that case.
+NNG_DECL int nng_cv_until(nng_cv *, nng_time);
+
+// nng_cv_wake wakes all threads waiting on the condition.
+NNG_DECL void nng_cv_wake(nng_cv *);
+
+// nng_cv_wake1 wakes only one thread waiting on the condition.  This may
+// reduce the thundering herd problem, but care must be taken to ensure
+// that no waiter starves forvever.
+NNG_DECL void nng_cv_wake1(nng_cv *);
+
+// nng_random returns a "strong" (cryptographic sense) random number.
+NNG_DECL uint32_t nng_random(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NNG_SUPPLEMENTAL_UTIL_PLATFORM_H
diff --git a/aBuild/nng/include/nng/transport/inproc/inproc.h b/aBuild/nng/include/nng/transport/inproc/inproc.h
new file mode 100644
index 0000000..bfd6e1c
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/inproc/inproc.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2017 Garrett D'Amore <garrett@damore.org>
+// Copyright 2017 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_INPROC_INPROC_H
+#define NNG_TRANSPORT_INPROC_INPROC_H
+
+// inproc transport.  This is used for intra-process communication.
+
+NNG_DECL int nng_inproc_register(void);
+
+#endif // NNG_TRANSPORT_INPROC_INPROC_H
diff --git a/aBuild/nng/include/nng/transport/ipc/ipc.h b/aBuild/nng/include/nng/transport/ipc/ipc.h
new file mode 100644
index 0000000..c69c4dc
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/ipc/ipc.h
@@ -0,0 +1,19 @@
+//
+// Copyright 2019 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_IPC_IPC_H
+#define NNG_TRANSPORT_IPC_IPC_H
+
+// ipc transport.  This is used for inter-process communication on
+// the same host computer.
+
+NNG_DECL int nng_ipc_register(void);
+
+#endif // NNG_TRANSPORT_IPC_IPC_H
diff --git a/aBuild/nng/include/nng/transport/tcp/tcp.h b/aBuild/nng/include/nng/transport/tcp/tcp.h
new file mode 100644
index 0000000..6975109
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/tcp/tcp.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2017 Garrett D'Amore <garrett@damore.org>
+// Copyright 2017 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_TCP_TCP_H
+#define NNG_TRANSPORT_TCP_TCP_H
+
+// TCP transport.  This is used for communication over TCP/IP.
+
+NNG_DECL int nng_tcp_register(void);
+
+#endif // NNG_TRANSPORT_TCP_TCP_H
diff --git a/aBuild/nng/include/nng/transport/tls/tls.h b/aBuild/nng/include/nng/transport/tls/tls.h
new file mode 100644
index 0000000..a3fa0eb
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/tls/tls.h
@@ -0,0 +1,18 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_TLS_TLS_H
+#define NNG_TRANSPORT_TLS_TLS_H
+
+// TLS transport.  This is used for communication via TLS v1.2 over TCP/IP.
+
+NNG_DECL int nng_tls_register(void);
+
+#endif // NNG_TRANSPORT_TLS_TLS_H
diff --git a/aBuild/nng/include/nng/transport/ws/websocket.h b/aBuild/nng/include/nng/transport/ws/websocket.h
new file mode 100644
index 0000000..8179bea
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/ws/websocket.h
@@ -0,0 +1,32 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_WS_WEBSOCKET_H
+#define NNG_TRANSPORT_WS_WEBSOCKET_H
+
+// WebSocket transport.  This is used for communication via WebSocket.
+
+NNG_DECL int nng_ws_register(void);
+
+// NNG_OPT_WS_REQUEST_HEADERS is a string containing the
+// request headers, formatted as CRLF terminated lines.
+#define NNG_OPT_WS_REQUEST_HEADERS "ws:request-headers"
+
+// NNG_OPT_WS_RESPONSE_HEADERS is a string containing the
+// response headers, formatted as CRLF terminated lines.
+#define NNG_OPT_WS_RESPONSE_HEADERS "ws:response-headers"
+
+// These aliases are for WSS naming consistency.
+#define NNG_OPT_WSS_REQUEST_HEADERS NNG_OPT_WS_REQUEST_HEADERS
+#define NNG_OPT_WSS_RESPONSE_HEADERS NNG_OPT_WS_RESPONSE_HEADERS
+
+NNG_DECL int nng_wss_register(void);
+
+#endif // NNG_TRANSPORT_WS_WEBSOCKET_H
diff --git a/aBuild/nng/include/nng/transport/zerotier/zerotier.h b/aBuild/nng/include/nng/transport/zerotier/zerotier.h
new file mode 100644
index 0000000..ab4d851
--- /dev/null
+++ b/aBuild/nng/include/nng/transport/zerotier/zerotier.h
@@ -0,0 +1,149 @@
+//
+// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#ifndef NNG_TRANSPORT_ZEROTIER_ZEROTIER_H
+#define NNG_TRANSPORT_ZEROTIER_ZEROTIER_H
+
+// ZeroTier Transport.  This sits on the ZeroTier L2 network, which itself
+// is implemented on top of UDP.  This requires the 3rd party
+// libzerotiercore library (which is GPLv3!) and platform specific UDP
+// functionality to be built in.  Note that care must be taken to link
+// dynamically if one wishes to avoid making your entire application GPL3.
+// (Alternatively ZeroTier offers commercial licenses which may prevent
+// this particular problem.)  This implementation does not make use of
+// certain advanced capabilities in ZeroTier such as more sophisticated
+// route management and TCP fallback.  You need to have connectivity
+// to the Internet to use this.  (Or at least to your Planetary root.)
+//
+// The ZeroTier URL format we support is zt://<ztid>.<nwid>:<port> where
+// the <nwid> component represents the 64-bit hexadecimal ZeroTier
+// network ID,the <ztid> represents the 40-bit hexadecimal ZeroTier
+// node (device) ID, and the <port> is a 24-bit (decimal) port number.
+//
+// A listener may replace the <ztid> with a wildcard, to just bind to itself,
+// in which case the format will be zt://*.<nwid>:<port>
+//
+// A listener may also use either 0 or * for the <port> to indicate that
+// a random local ephemeral port should be used.
+//
+// Because ZeroTier takes a while to establish connectivity, it is even
+// more important that applications using the ZeroTier transport not
+// assume that a connection will be immediately available.  It can take
+// quite a few seconds for peer-to-peer connectivity to be established.
+//
+// The ZeroTier transport was funded by Capitar IT Group, BV.
+//
+// The protocol itself is documented online at:
+// http://nanomsg.org/rfcs/sp-zerotier-v0.html
+//
+// This transport is highly experimental.
+
+// ZeroTier transport-specific options.
+
+// NNG_OPT_ZT_HOME is a string containing a directory, where persistent
+// state (key files, etc.) will be stored.  It should be protected from
+// unauthorized viewing and modification.  This option must be set on an
+// endpoint or socket before the endpoint(s) are started.  If the unset,
+// or an empty string, then no persistence is used and an ephemeral node
+// will be created instead.  Note that different endpoints may use different
+// values for this option, and that will lead to each endpoint having a
+// different ZeroTier identity -- however only one ephemeral node will
+// be created for the application.
+#define NNG_OPT_ZT_HOME "zt:home"
+
+// NNG_OPT_ZT_NWID is the 64-bit network ID, represented using a uint64_t in
+// native byte order.  This is a read-only option; it is derived automatically
+// from the URL.
+#define NNG_OPT_ZT_NWID "zt:nwid"
+
+// NNG_OPT_ZT_NODE is the 40-bit node ID, stored in native order in the low
+// 40-bits of a uint64_t, of the node.  This is a read-only option.
+#define NNG_OPT_ZT_NODE "zt:node"
+
+// NNG_OPT_ZT_NETWORK_STATUS represents the status of the ZeroTier virtual
+// network.  The option is a read-only value, stored as an integer, which
+// takes of the nng_zt_network_status_xxx values listed below.
+#define NNG_OPT_ZT_NETWORK_STATUS "zt:network-status"
+
+// NNG_OPT_ZT_NETWORK_NAME is a human-readable name for the ZeroTier virtual
+// network.  This will only be set once the ZeroTier network has come up
+// as the name comes from the network controller.  This is read-only, and
+// is presented as an ASCIIZ string.
+#define NNG_OPT_ZT_NETWORK_NAME "zt:network-name"
+
+// NNG_OPT_ZT_PING_TIME and NNG_OPT_ZT_PING_TRIES are used to send ping
+// requests when a connection appears to be idled.  If a logical session
+// has not received traffic from it's peer for ping-time, then a ping packet
+// is sent.  This will be done up to ping-count times.  If no traffic from
+// the remote peer is seen after all ping requests are sent, then the peer
+// is assumed to be dead or offline, and the session is closed.  The
+// NNG_OPT_ZT_PING_TIME is a duration (msec, stored as an nng_duration, and
+// NNG_OPT_ZT_PING_COUNT is an integer.)  This ping process can be disabled
+// by setting either ping-time or ping-count to zero.
+#define NNG_OPT_ZT_PING_TIME "zt:ping-time"
+#define NNG_OPT_ZT_PING_TRIES "zt:ping-tries"
+
+// NNG_OPT_ZT_CONN_TIME and NNG_OPT_ZT_CONN_TRIES are used to control
+// the interval between connection attempts, and the maximum number of
+// connection attempts to make before assuming that the peer is absent
+// (and returning NNG_ETIMEDOUT).  The NNG_OPT_ZT_CONN_TIME is a duration,
+// the NNG_OPT_ZT_CONN_TRIES is an integer.
+#define NNG_OPT_ZT_CONN_TIME "zt:conn-time"
+#define NNG_OPT_ZT_CONN_TRIES "zt:conn-tries"
+
+// NNG_OPT_ZT_MTU is a read-only size_t and contains the ZeroTier virtual
+// network MTU (i.e. the L2 payload MTU). Messages that are larger than this
+// (including our 20-byte header data) will be fragmented into multiple
+// virtual L2 frames.
+#define NNG_OPT_ZT_MTU "zt:mtu"
+
+// NNG_OPT_ZT_ORBIT is a write-only API to add a "moon" -- this affects the
+// endpoint, and all other endpoints using the same node. The value is
+// a pair of 64-bit integers -- the first is the moon ID, and the second, if
+// non-zero, is the node ID of a server.  Conventionally this is the same
+// as the moon ID.
+#define NNG_OPT_ZT_ORBIT "zt:orbit"
+
+// NNG_OPT_ZT_DEORBIT removes the moon ID from the node, so that it will
+// no longer use that moon.  The argument is a moon ID to remove.  If the
+// node is not already orbiting, then this operation does nothing.
+#define NNG_OPT_ZT_DEORBIT "zt:deorbit"
+
+// NNG_OPT_ZT_ADD_LOCAL_ADDR adds the local address (IP address) as
+// local interface address.  This facilitates the local startup and
+// discovery.  Note that this can be called multiple times to add
+// additional address.  This is optional, and usually not needed.
+// The value is an nng_sockaddr corresponding to an IP (or IPv6) address.
+#define NNG_OPT_ZT_ADD_LOCAL_ADDR "zt:add-local-addr"
+
+// NNG_OPT_ZT_CLEAR_LOCAL_ADDRS clears ZeroTier's notion of all
+// local addresses.  This may be useful when used on a mobile node,
+// to reset the notion of what the local addresses are.  This
+// option takes no argument really.
+#define NNG_OPT_ZT_CLEAR_LOCAL_ADDRS "zt:clear-local-addrs"
+
+// Network status values.
+// These values are supplied to help folks checking status.  They are the
+// return values from zt_opt_status.  We avoid hard coding them as defines,
+// to keep applications from baking in values that may change if the
+// underlying ZeroTier transport changes.
+enum nng_zt_status {
+	NNG_ZT_STATUS_UP,
+	NNG_ZT_STATUS_CONFIG,
+	NNG_ZT_STATUS_DENIED,
+	NNG_ZT_STATUS_NOTFOUND,
+	NNG_ZT_STATUS_ERROR,
+	NNG_ZT_STATUS_OBSOLETE,
+	NNG_ZT_STATUS_UNKNOWN,
+};
+
+NNG_DECL int nng_zt_register(void);
+
+#endif // NNG_TRANSPORT_ZEROTIER_ZEROTIER_H
diff --git a/aBuild/nng/lib/cmake/nng/nng-config-version.cmake b/aBuild/nng/lib/cmake/nng/nng-config-version.cmake
new file mode 100644
index 0000000..9882ba1
--- /dev/null
+++ b/aBuild/nng/lib/cmake/nng/nng-config-version.cmake
@@ -0,0 +1,46 @@
+# This is a basic version file for the Config-mode of find_package().
+# It is used by write_basic_package_version_file() as input file for configure_file()
+# to create a version-file which can be installed along a config.cmake file.
+#
+# The created file sets PACKAGE_VERSION_EXACT if the current version string and
+# the requested version string are exactly the same and it sets
+# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
+# but only if the requested major version is the same as the current one.
+# The variable CVF_VERSION must be set before calling configure_file().
+
+
+set(PACKAGE_VERSION "1.1.1-37-g82afec9")
+
+if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
+  set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else()
+
+  if("1.1.1-37-g82afec9" MATCHES "^([0-9]+)\\.")
+    set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
+  else()
+    set(CVF_VERSION_MAJOR "1.1.1-37-g82afec9")
+  endif()
+
+  if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
+    set(PACKAGE_VERSION_COMPATIBLE TRUE)
+  else()
+    set(PACKAGE_VERSION_COMPATIBLE FALSE)
+  endif()
+
+  if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
+      set(PACKAGE_VERSION_EXACT TRUE)
+  endif()
+endif()
+
+
+# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
+if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
+   return()
+endif()
+
+# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
+if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
+  math(EXPR installedBits "8 * 8")
+  set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
+  set(PACKAGE_VERSION_UNSUITABLE TRUE)
+endif()
diff --git a/aBuild/nng/lib/cmake/nng/nng-config.cmake b/aBuild/nng/lib/cmake/nng/nng-config.cmake
new file mode 100644
index 0000000..c04db41
--- /dev/null
+++ b/aBuild/nng/lib/cmake/nng/nng-config.cmake
@@ -0,0 +1,50 @@
+# Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+#
+# This software is supplied under the terms of the MIT License, a
+# copy of which should be located in the distribution where this
+# file was obtained (LICENSE.txt).  A copy of the license may also be
+# found online at https://opensource.org/licenses/MIT.
+
+
+
+####### Expanded from @PACKAGE_INIT@ by configure_package_config_file() #######
+####### Any changes to this file will be overwritten by the next CMake run ####
+####### The input file was nng-config.cmake.in                            ########
+
+get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../" ABSOLUTE)
+
+macro(set_and_check _var _file)
+  set(${_var} "${_file}")
+  if(NOT EXISTS "${_file}")
+    message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !")
+  endif()
+endmacro()
+
+macro(check_required_components _NAME)
+  foreach(comp ${${_NAME}_FIND_COMPONENTS})
+    if(NOT ${_NAME}_${comp}_FOUND)
+      if(${_NAME}_FIND_REQUIRED_${comp})
+        set(${_NAME}_FOUND FALSE)
+      endif()
+    endif()
+  endforeach()
+endmacro()
+
+####################################################################################
+
+set(NNG_VERSION_MAJOR "1")
+set(NNG_VERSION_MINOR "1")
+set(NNG_VERSION_PATCH "1")
+
+set_and_check(NNG_INCLUDE_DIRS "${PACKAGE_PREFIX_DIR}/include/nng")
+
+include("${CMAKE_CURRENT_LIST_DIR}/nng-targets.cmake")
+
+# Make sure we find packages for our dependencies
+foreach(_PKG IN ITEMS Threads)
+	find_package(${_PKG} REQUIRED)
+endforeach ()
+
+set(NNG_LIBRARY nng::nng)
+
+check_required_components(nng)
diff --git a/aBuild/nng/lib/cmake/nng/nng-targets-noconfig.cmake b/aBuild/nng/lib/cmake/nng/nng-targets-noconfig.cmake
new file mode 100644
index 0000000..7f01a4c
--- /dev/null
+++ b/aBuild/nng/lib/cmake/nng/nng-targets-noconfig.cmake
@@ -0,0 +1,19 @@
+#----------------------------------------------------------------
+# Generated CMake target import file.
+#----------------------------------------------------------------
+
+# Commands may need to know the format version.
+set(CMAKE_IMPORT_FILE_VERSION 1)
+
+# Import target "nng::nng" for configuration ""
+set_property(TARGET nng::nng APPEND PROPERTY IMPORTED_CONFIGURATIONS NOCONFIG)
+set_target_properties(nng::nng PROPERTIES
+  IMPORTED_LOCATION_NOCONFIG "${_IMPORT_PREFIX}/lib/libnng.so.1.1.0"
+  IMPORTED_SONAME_NOCONFIG "libnng.so.1"
+  )
+
+list(APPEND _IMPORT_CHECK_TARGETS nng::nng )
+list(APPEND _IMPORT_CHECK_FILES_FOR_nng::nng "${_IMPORT_PREFIX}/lib/libnng.so.1.1.0" )
+
+# Commands beyond this point should not need to know the version.
+set(CMAKE_IMPORT_FILE_VERSION)
diff --git a/aBuild/nng/lib/cmake/nng/nng-targets.cmake b/aBuild/nng/lib/cmake/nng/nng-targets.cmake
new file mode 100644
index 0000000..41984e9
--- /dev/null
+++ b/aBuild/nng/lib/cmake/nng/nng-targets.cmake
@@ -0,0 +1,88 @@
+# Generated by CMake 3.5.1
+
+if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5)
+   message(FATAL_ERROR "CMake >= 2.6.0 required")
+endif()
+cmake_policy(PUSH)
+cmake_policy(VERSION 2.6)
+#----------------------------------------------------------------
+# Generated CMake target import file.
+#----------------------------------------------------------------
+
+# Commands may need to know the format version.
+set(CMAKE_IMPORT_FILE_VERSION 1)
+
+# Protect against multiple inclusion, which would fail when already imported targets are added once more.
+set(_targetsDefined)
+set(_targetsNotDefined)
+set(_expectedTargets)
+foreach(_expectedTarget nng::nng)
+  list(APPEND _expectedTargets ${_expectedTarget})
+  if(NOT TARGET ${_expectedTarget})
+    list(APPEND _targetsNotDefined ${_expectedTarget})
+  endif()
+  if(TARGET ${_expectedTarget})
+    list(APPEND _targetsDefined ${_expectedTarget})
+  endif()
+endforeach()
+if("${_targetsDefined}" STREQUAL "${_expectedTargets}")
+  set(CMAKE_IMPORT_FILE_VERSION)
+  cmake_policy(POP)
+  return()
+endif()
+if(NOT "${_targetsDefined}" STREQUAL "")
+  message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n")
+endif()
+unset(_targetsDefined)
+unset(_targetsNotDefined)
+unset(_expectedTargets)
+
+
+# Compute the installation prefix relative to this file.
+get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
+get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
+get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
+get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
+
+# Create imported target nng::nng
+add_library(nng::nng SHARED IMPORTED)
+
+set_target_properties(nng::nng PROPERTIES
+  INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
+)
+
+# Load information for each installed configuration.
+get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+file(GLOB CONFIG_FILES "${_DIR}/nng-targets-*.cmake")
+foreach(f ${CONFIG_FILES})
+  include(${f})
+endforeach()
+
+# Cleanup temporary variables.
+set(_IMPORT_PREFIX)
+
+# Loop over all imported files and verify that they actually exist
+foreach(target ${_IMPORT_CHECK_TARGETS} )
+  foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )
+    if(NOT EXISTS "${file}" )
+      message(FATAL_ERROR "The imported target \"${target}\" references the file
+   \"${file}\"
+but this file does not exist.  Possible reasons include:
+* The file was deleted, renamed, or moved to another location.
+* An install or uninstall procedure did not complete successfully.
+* The installation package was faulty and contained
+   \"${CMAKE_CURRENT_LIST_FILE}\"
+but not all the files it references.
+")
+    endif()
+  endforeach()
+  unset(_IMPORT_CHECK_FILES_FOR_${target})
+endforeach()
+unset(_IMPORT_CHECK_TARGETS)
+
+# This file does not depend on other imported targets which have
+# been exported from the same project but in a separate export set.
+
+# Commands beyond this point should not need to know the version.
+set(CMAKE_IMPORT_FILE_VERSION)
+cmake_policy(POP)
diff --git a/aBuild/nng/lib/libnng.a b/aBuild/nng/lib/libnng.a
new file mode 100644
index 0000000..cfd9e8e
--- /dev/null
+++ b/aBuild/nng/lib/libnng.a
Binary files differ
diff --git a/aBuild/nng/lib/libnng.so.1.1.0 b/aBuild/nng/lib/libnng.so.1.1.0
new file mode 100644
index 0000000..50ce078
--- /dev/null
+++ b/aBuild/nng/lib/libnng.so.1.1.0
Binary files differ
diff --git a/nng b/nng
new file mode 160000
index 0000000..82afec9
--- /dev/null
+++ b/nng
@@ -1 +1 @@
-Subproject commit 0000000000000000000000000000000000000000
+Subproject commit 82afec95496fd2e4b8fb404aa90e961f93db1fe8

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