#
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# Copyright 2020 Staysail Systems, Inc. <info@staystail.tech>
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#
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# This software is supplied under the terms of the MIT License, a
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# copy of which should be located in the distribution where this
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# file was obtained (LICENSE.txt). A copy of the license may also be
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# found online at https://opensource.org/licenses/MIT.
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#
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# POSIX.
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# We cannot use nng_sources_if because these tests don't go into
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# the static library unless they also go into the dynamic.
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if (NNG_PLATFORM_POSIX)
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find_package(Threads REQUIRED)
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nng_link_libraries(Threads::Threads)
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# Unconditionally declare the following feature test macros. These are
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# needed for some platforms (glibc and SunOS/illumos) and are harmless
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# on the others.
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nng_defines(_GNU_SOURCE)
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nng_defines(_REENTRANT)
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nng_defines(_THREAD_SAFE)
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nng_defines(_POSIX_PTHREAD_SEMANTICS)
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nng_check_func(lockf NNG_HAVE_LOCKF)
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nng_check_func(flock NNG_HAVE_FLOCK)
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nng_check_func(getrandom NNG_HAVE_GETRANDOM)
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nng_check_func(arc4random_buf NNG_HAVE_ARC4RANDOM)
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nng_check_lib(rt clock_gettime NNG_HAVE_CLOCK_GETTIME)
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nng_check_lib(pthread sem_wait NNG_HAVE_SEMAPHORE_PTHREAD)
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nng_check_lib(pthread pthread_atfork NNG_HAVE_PTHREAD_ATFORK_PTHREAD)
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nng_check_lib(pthread pthread_set_name_np NNG_HAVE_PTHREAD_SET_NAME_NP)
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nng_check_lib(pthread pthread_setname_np NNG_HAVE_PTHREAD_SETNAME_NP)
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nng_check_lib(nsl gethostbyname NNG_HAVE_LIBNSL)
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nng_check_lib(socket socket NNG_HAVE_LIBSOCKET)
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# GCC needs libatomic on some architectures (e.g. ARM) because the
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# underlying architecture may lack the necessary atomic primitives.
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# One hopes that the libatomic implementation is superior to just using
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# a pthread mutex. The symbol chosen here was identified from GCC's
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# libatomic map file.
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#
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# Arguably when using clang, compiler-rt might be better.
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nng_check_lib(atomic __atomic_load_1 NNG_HAVE_LIBATOMIC)
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nng_check_sym(AF_UNIX sys/socket.h NNG_HAVE_UNIX_SOCKETS)
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nng_check_sym(backtrace_symbols_fd execinfo.h NNG_HAVE_BACKTRACE)
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nng_check_struct_member(msghdr msg_control sys/socket.h NNG_HAVE_MSG_CONTROL)
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nng_check_sym(eventfd sys/eventfd.h NNG_HAVE_EVENTFD)
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nng_check_sym(kqueue sys/event.h NNG_HAVE_KQUEUE)
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nng_check_sym(port_create port.h NNG_HAVE_PORT_CREATE)
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nng_check_sym(epoll_create sys/epoll.h NNG_HAVE_EPOLL)
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nng_check_sym(epoll_create1 sys/epoll.h NNG_HAVE_EPOLL_CREATE1)
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nng_check_sym(getpeereid unistd.h NNG_HAVE_GETPEEREID)
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nng_check_sym(SO_PEERCRED sys/socket.h NNG_HAVE_SOPEERCRED)
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nng_check_struct_member(sockpeercred uid sys/socket.h NNG_HAVE_SOCKPEERCRED)
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nng_check_sym(LOCAL_PEERCRED sys/un.h NNG_HAVE_LOCALPEERCRED)
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nng_check_sym(LOCAL_PEERPID sys/un.h NNG_HAVE_LOCALPEERPID)
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nng_check_sym(getpeerucred ucred.h NNG_HAVE_GETPEERUCRED)
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nng_check_sym(atomic_flag_test_and_set stdatomic.h NNG_HAVE_STDATOMIC)
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nng_sources(
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posix_impl.h
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posix_aio.h
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posix_ipc.h
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posix_config.h
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posix_pollq.h
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posix_tcp.h
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posix_alloc.c
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posix_atomic.c
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posix_clock.c
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posix_debug.c
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posix_file.c
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posix_ipcconn.c
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posix_ipcdial.c
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posix_ipclisten.c
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posix_pipe.c
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posix_resolv_gai.c
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posix_sockaddr.c
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posix_tcpconn.c
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posix_tcpdial.c
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posix_tcplisten.c
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posix_thread.c
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posix_udp.c
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)
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if (NNG_HAVE_PORT_CREATE)
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nng_sources(posix_pollq_port.c)
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elseif (NNG_HAVE_KQUEUE)
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nng_sources(posix_pollq_kqueue.c)
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elseif (NNG_HAVE_EPOLL AND NNG_HAVE_EVENTFD)
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nng_sources(posix_pollq_epoll.c)
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else ()
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nng_sources(posix_pollq_poll.c)
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endif ()
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if (NNG_HAVE_ARC4RANDOM)
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nng_sources(posix_rand_arc4random.c)
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elseif (NNG_HAVE_GETRANDOM)
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nng_sources(posix_rand_getrandom.c)
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else ()
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nng_sources(posix_rand_urandom.c)
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endif ()
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endif ()
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