//
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// Copyright 2021 Staysail Systems, Inc. <info@staysail.tech>
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// Copyright 2018 Capitar IT Group BV <info@capitar.com>
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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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#include <stdlib.h>
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#include "core/nng_impl.h"
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#include "nng/protocol/pair1/pair.h"
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// Pair protocol. The PAIRv1 protocol is a simple 1:1 messaging pattern.
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#ifdef NNG_ENABLE_STATS
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#define BUMP_STAT(x) nni_stat_inc(x, 1)
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#else
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#define BUMP_STAT(x)
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#endif
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typedef struct pair1_pipe pair1_pipe;
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typedef struct pair1_sock pair1_sock;
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static void pair1_pipe_send_cb(void *);
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static void pair1_pipe_recv_cb(void *);
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static void pair1_pipe_fini(void *);
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static void pair1_send_sched(pair1_sock *);
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static void pair1_pipe_send(pair1_pipe *, nni_msg *);
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// pair1_sock is our per-socket protocol private structure.
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struct pair1_sock {
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nni_sock * sock;
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bool raw;
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pair1_pipe * p;
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nni_atomic_int ttl;
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nni_mtx mtx;
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nni_lmq wmq;
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nni_list waq;
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nni_lmq rmq;
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nni_list raq;
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nni_pollable writable;
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nni_pollable readable;
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bool rd_ready; // pipe ready for read
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bool wr_ready; // pipe ready for write
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#ifdef NNG_ENABLE_STATS
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nni_stat_item stat_poly;
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nni_stat_item stat_raw;
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nni_stat_item stat_reject_mismatch;
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nni_stat_item stat_reject_already;
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nni_stat_item stat_ttl_drop;
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nni_stat_item stat_rx_malformed;
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nni_stat_item stat_tx_malformed;
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nni_stat_item stat_tx_drop;
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#endif
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#ifdef NNG_TEST_LIB
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bool inject_header;
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#endif
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};
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// pair1_pipe is our per-pipe protocol private structure.
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struct pair1_pipe {
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nni_pipe * pipe;
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pair1_sock *pair;
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nni_aio aio_send;
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nni_aio aio_recv;
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};
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static void
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pair1_sock_fini(void *arg)
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{
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pair1_sock *s = arg;
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nni_lmq_fini(&s->rmq);
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nni_lmq_fini(&s->wmq);
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nni_pollable_fini(&s->writable);
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nni_pollable_fini(&s->readable);
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nni_mtx_fini(&s->mtx);
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}
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#ifdef NNG_ENABLE_STATS
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static void
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pair1_add_sock_stat(
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pair1_sock *s, nni_stat_item *item, const nni_stat_info *info)
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{
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nni_stat_init(item, info);
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nni_sock_add_stat(s->sock, item);
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}
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#endif
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static int
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pair1_sock_init_impl(void *arg, nni_sock *sock, bool raw)
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{
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pair1_sock *s = arg;
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// Raw mode uses this.
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nni_mtx_init(&s->mtx);
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s->sock = sock;
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s->raw = raw;
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nni_lmq_init(&s->rmq, 0);
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nni_lmq_init(&s->wmq, 0);
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nni_aio_list_init(&s->raq);
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nni_aio_list_init(&s->waq);
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nni_pollable_init(&s->writable);
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nni_pollable_init(&s->readable);
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nni_atomic_init(&s->ttl);
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nni_atomic_set(&s->ttl, 8);
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#ifdef NNG_ENABLE_STATS
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static const nni_stat_info poly_info = {
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.si_name = "poly",
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.si_desc = "polyamorous mode?",
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.si_type = NNG_STAT_BOOLEAN,
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};
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static const nni_stat_info raw_info = {
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.si_name = "raw",
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.si_desc = "raw mode?",
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.si_type = NNG_STAT_BOOLEAN,
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};
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static const nni_stat_info mismatch_info = {
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.si_name = "mismatch",
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.si_desc = "pipes rejected (protocol mismatch)",
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.si_type = NNG_STAT_COUNTER,
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.si_atomic = true,
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};
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static const nni_stat_info already_info = {
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.si_name = "already",
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.si_desc = "pipes rejected (already connected)",
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.si_type = NNG_STAT_COUNTER,
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.si_atomic = true,
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};
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static const nni_stat_info ttl_drop_info = {
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.si_name = "ttl_drop",
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.si_desc = "messages dropped due to too many hops",
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.si_type = NNG_STAT_COUNTER,
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.si_unit = NNG_UNIT_MESSAGES,
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.si_atomic = true,
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};
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static const nni_stat_info tx_drop_info = {
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.si_name = "tx_drop",
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.si_desc = "messages dropped undeliverable",
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.si_type = NNG_STAT_COUNTER,
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.si_unit = NNG_UNIT_MESSAGES,
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.si_atomic = true,
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};
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static const nni_stat_info rx_malformed_info = {
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.si_name = "rx_malformed",
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.si_desc = "malformed messages received",
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.si_type = NNG_STAT_COUNTER,
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.si_unit = NNG_UNIT_MESSAGES,
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.si_atomic = true,
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};
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static const nni_stat_info tx_malformed_info = {
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.si_name = "tx_malformed",
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.si_desc = "malformed messages not sent",
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.si_type = NNG_STAT_COUNTER,
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.si_unit = NNG_UNIT_MESSAGES,
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.si_atomic = true,
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};
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pair1_add_sock_stat(s, &s->stat_poly, &poly_info);
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pair1_add_sock_stat(s, &s->stat_raw, &raw_info);
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pair1_add_sock_stat(s, &s->stat_reject_mismatch, &mismatch_info);
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pair1_add_sock_stat(s, &s->stat_reject_already, &already_info);
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pair1_add_sock_stat(s, &s->stat_ttl_drop, &ttl_drop_info);
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pair1_add_sock_stat(s, &s->stat_tx_drop, &tx_drop_info);
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pair1_add_sock_stat(s, &s->stat_rx_malformed, &rx_malformed_info);
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if (raw) {
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// This stat only makes sense in raw mode.
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pair1_add_sock_stat(
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s, &s->stat_tx_malformed, &tx_malformed_info);
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}
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nni_stat_set_bool(&s->stat_raw, raw);
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nni_stat_set_bool(&s->stat_poly, false);
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#endif
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return (0);
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}
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static int
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pair1_sock_init(void *arg, nni_sock *sock)
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{
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return (pair1_sock_init_impl(arg, sock, false));
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}
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static int
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pair1_sock_init_raw(void *arg, nni_sock *sock)
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{
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return (pair1_sock_init_impl(arg, sock, true));
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}
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static void
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pair1_pipe_stop(void *arg)
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{
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pair1_pipe *p = arg;
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pair1_sock *s = p->pair;
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nni_mtx_lock(&s->mtx);
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if (s->p == p) {
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s->p = NULL;
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if (s->rd_ready) {
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nni_msg *m = nni_aio_get_msg(&p->aio_recv);
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nni_msg_free(m);
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s->rd_ready = false;
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}
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if (s->wr_ready) {
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s->wr_ready = false;
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nni_pollable_clear(&s->writable);
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}
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if (nni_lmq_empty(&s->rmq)) {
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nni_pollable_clear(&s->readable);
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}
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}
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nni_mtx_unlock(&s->mtx);
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nni_aio_stop(&p->aio_send);
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nni_aio_stop(&p->aio_recv);
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}
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static void
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pair1_pipe_fini(void *arg)
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{
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pair1_pipe *p = arg;
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nni_aio_fini(&p->aio_send);
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nni_aio_fini(&p->aio_recv);
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}
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static int
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pair1_pipe_init(void *arg, nni_pipe *pipe, void *pair)
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{
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pair1_pipe *p = arg;
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nni_aio_init(&p->aio_send, pair1_pipe_send_cb, p);
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nni_aio_init(&p->aio_recv, pair1_pipe_recv_cb, p);
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p->pipe = pipe;
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p->pair = pair;
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return (0);
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}
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static void
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pair1_cancel(nni_aio *aio, void *arg, int rv)
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{
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pair1_sock *s = arg;
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nni_mtx_lock(&s->mtx);
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if (nni_aio_list_active(aio)) {
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nni_aio_list_remove(aio);
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nni_aio_finish_error(aio, rv);
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}
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nni_mtx_unlock(&s->mtx);
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}
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static int
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pair1_pipe_start(void *arg)
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{
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pair1_pipe *p = arg;
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pair1_sock *s = p->pair;
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if (nni_pipe_peer(p->pipe) != NNG_PAIR1_PEER) {
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BUMP_STAT(&s->stat_reject_mismatch);
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// Peer protocol mismatch.
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return (NNG_EPROTO);
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}
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nni_mtx_lock(&s->mtx);
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if (s->p != NULL) {
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nni_mtx_unlock(&s->mtx);
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BUMP_STAT(&s->stat_reject_already);
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return (NNG_EBUSY);
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}
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s->p = p;
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s->rd_ready = false;
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nni_mtx_unlock(&s->mtx);
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pair1_send_sched(s);
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// And the pipe read of course.
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nni_pipe_recv(p->pipe, &p->aio_recv);
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return (0);
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}
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static void
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pair1_pipe_close(void *arg)
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{
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pair1_pipe *p = arg;
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nni_aio_close(&p->aio_send);
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nni_aio_close(&p->aio_recv);
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}
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static void
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pair1_pipe_recv_cb(void *arg)
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{
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pair1_pipe *p = arg;
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pair1_sock *s = p->pair;
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nni_msg * msg;
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uint32_t hdr;
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nni_pipe * pipe = p->pipe;
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size_t len;
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nni_aio * a;
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if (nni_aio_result(&p->aio_recv) != 0) {
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nni_pipe_close(p->pipe);
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return;
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}
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msg = nni_aio_get_msg(&p->aio_recv);
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// Store the pipe ID.
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nni_msg_set_pipe(msg, nni_pipe_id(p->pipe));
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len = nni_msg_len(msg);
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// If the message is missing the hop count header, scrap it.
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if ((len < sizeof(uint32_t)) ||
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((hdr = nni_msg_trim_u32(msg)) > 0xff)) {
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BUMP_STAT(&s->stat_rx_malformed);
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nni_msg_free(msg);
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nni_pipe_close(pipe);
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return;
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}
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// If we bounced too many times, discard the message, but
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// keep getting more.
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if ((int) hdr > nni_atomic_get(&s->ttl)) {
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BUMP_STAT(&s->stat_ttl_drop);
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nni_msg_free(msg);
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nni_aio_set_msg(&p->aio_recv, NULL);
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nni_pipe_recv(pipe, &p->aio_recv);
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return;
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}
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nni_sock_bump_rx(s->sock, len);
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// Store the hop count in the header.
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nni_msg_header_append_u32(msg, hdr);
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nni_mtx_lock(&s->mtx);
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// if anyone is blocking, then the lmq will be empty, and
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// we should deliver it there.
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if ((a = nni_list_first(&s->raq)) != NULL) {
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nni_aio_list_remove(a);
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nni_aio_set_msg(a, msg);
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nni_pipe_recv(pipe, &p->aio_recv);
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nni_mtx_unlock(&s->mtx);
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nni_aio_finish_sync(a, 0, len);
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return;
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}
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// maybe we have room in the rmq?
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if (!nni_lmq_full(&s->rmq)) {
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nni_lmq_putq(&s->rmq, msg);
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nni_aio_set_msg(&p->aio_recv, NULL);
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nni_pipe_recv(pipe, &p->aio_recv);
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} else {
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s->rd_ready = true;
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}
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nni_pollable_raise(&s->readable);
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nni_mtx_unlock(&s->mtx);
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}
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static void
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pair1_send_sched(pair1_sock *s)
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{
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pair1_pipe *p;
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nni_msg * m;
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nni_aio * a = NULL;
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size_t l = 0;
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nni_mtx_lock(&s->mtx);
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if ((p = s->p) == NULL) {
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nni_mtx_unlock(&s->mtx);
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return;
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}
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s->wr_ready = true;
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// if message waiting in buffered queue, then we prefer that.
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if (nni_lmq_getq(&s->wmq, &m) == 0) {
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pair1_pipe_send(p, m);
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if ((a = nni_list_first(&s->waq)) != NULL) {
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nni_aio_list_remove(a);
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m = nni_aio_get_msg(a);
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l = nni_msg_len(m);
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nni_lmq_putq(&s->wmq, m);
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}
|
|
} else if ((a = nni_list_first(&s->waq)) != NULL) {
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// Looks like we had the unbuffered case, but
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// someone was waiting.
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nni_aio_list_remove(a);
|
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m = nni_aio_get_msg(a);
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l = nni_msg_len(m);
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pair1_pipe_send(p, m);
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}
|
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// if we were blocked before, but not now, update.
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if ((!nni_lmq_full(&s->wmq)) || s->wr_ready) {
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nni_pollable_raise(&s->writable);
|
}
|
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nni_mtx_unlock(&s->mtx);
|
|
if (a != NULL) {
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nni_aio_set_msg(a, NULL);
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nni_aio_finish_sync(a, 0, l);
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}
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}
|
|
static void
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pair1_pipe_send_cb(void *arg)
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{
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pair1_pipe *p = arg;
|
|
if (nni_aio_result(&p->aio_send) != 0) {
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nni_msg_free(nni_aio_get_msg(&p->aio_send));
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nni_aio_set_msg(&p->aio_send, NULL);
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nni_pipe_close(p->pipe);
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return;
|
}
|
|
pair1_send_sched(p->pair);
|
}
|
|
static void
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pair1_sock_open(void *arg)
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{
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NNI_ARG_UNUSED(arg);
|
}
|
|
static void
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pair1_sock_close(void *arg)
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{
|
pair1_sock *s = arg;
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nni_aio * a;
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nni_msg * m;
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nni_mtx_lock(&s->mtx);
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while (((a = nni_list_first(&s->raq)) != NULL) ||
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((a = nni_list_first(&s->waq)) != NULL)) {
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nni_aio_list_remove(a);
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nni_aio_finish_error(a, NNG_ECLOSED);
|
}
|
while ((nni_lmq_getq(&s->rmq, &m) == 0) ||
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(nni_lmq_getq(&s->wmq, &m) == 0)) {
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nni_msg_free(m);
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}
|
nni_mtx_unlock(&s->mtx);
|
}
|
|
static int
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pair1_sock_set_max_ttl(void *arg, const void *buf, size_t sz, nni_opt_type t)
|
{
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pair1_sock *s = arg;
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int rv;
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int ttl;
|
|
if ((rv = nni_copyin_int(&ttl, buf, sz, 1, NNI_MAX_MAX_TTL, t)) == 0) {
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nni_atomic_set(&s->ttl, ttl);
|
}
|
|
return (rv);
|
}
|
|
static int
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pair1_sock_get_max_ttl(void *arg, void *buf, size_t *szp, nni_opt_type t)
|
{
|
pair1_sock *s = arg;
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return (nni_copyout_int(nni_atomic_get(&s->ttl), buf, szp, t));
|
}
|
|
#ifdef NNG_TEST_LIB
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static int
|
pair1_set_test_inject_header(void *arg, const void *buf, size_t sz, nni_type t)
|
{
|
pair1_sock *s = arg;
|
int rv;
|
nni_mtx_lock(&s->mtx);
|
rv = nni_copyin_bool(&s->inject_header, buf, sz, t);
|
nni_mtx_unlock(&s->mtx);
|
return (rv);
|
}
|
#endif
|
|
static void
|
pair1_pipe_send(pair1_pipe *p, nni_msg *m)
|
{
|
pair1_sock *s = p->pair;
|
// assumption: we have unique access to the message at this point.
|
NNI_ASSERT(!nni_msg_shared(m));
|
|
#if NNG_TEST_LIB
|
if (s->inject_header) {
|
goto inject;
|
}
|
#endif
|
NNI_ASSERT(nni_msg_header_len(m) == sizeof(uint32_t));
|
nni_msg_header_poke_u32(m, nni_msg_header_peek_u32(m) + 1);
|
|
#if NNG_TEST_LIB
|
inject:
|
#endif
|
|
nni_aio_set_msg(&p->aio_send, m);
|
nni_pipe_send(p->pipe, &p->aio_send);
|
s->wr_ready = false;
|
}
|
|
static void
|
pair1_sock_send(void *arg, nni_aio *aio)
|
{
|
pair1_sock *s = arg;
|
nni_msg * m;
|
size_t len;
|
int rv;
|
|
m = nni_aio_get_msg(aio);
|
len = nni_msg_len(m);
|
nni_sock_bump_tx(s->sock, len);
|
|
if (nni_aio_begin(aio) != 0) {
|
return;
|
}
|
|
#if NNG_TEST_LIB
|
if (s->inject_header) {
|
goto inject;
|
}
|
#endif
|
|
// Raw mode messages have the header already formed, with a hop count.
|
// Cooked mode messages have no header so we have to add one.
|
if (s->raw) {
|
if ((nni_msg_header_len(m) != sizeof(uint32_t)) ||
|
(nni_msg_header_peek_u32(m) >= 0xff)) {
|
BUMP_STAT(&s->stat_tx_malformed);
|
nni_aio_finish_error(aio, NNG_EPROTO);
|
return;
|
}
|
|
} else {
|
// Strip off any previously existing header, such as when
|
// replying to messages.
|
nni_msg_header_clear(m);
|
nni_msg_header_append_u32(m, 0);
|
}
|
|
#if NNG_TEST_LIB
|
inject:
|
#endif
|
|
nni_mtx_lock(&s->mtx);
|
if (s->wr_ready) {
|
pair1_pipe *p = s->p;
|
if (nni_lmq_full(&s->wmq)) {
|
nni_pollable_clear(&s->writable);
|
}
|
nni_aio_set_msg(aio, NULL);
|
nni_aio_finish(aio, 0, len);
|
pair1_pipe_send(p, m);
|
nni_mtx_unlock(&s->mtx);
|
return;
|
}
|
|
// Can we maybe queue it.
|
if (nni_lmq_putq(&s->wmq, m) == 0) {
|
// Yay, we can. So we're done.
|
nni_aio_set_msg(aio, NULL);
|
nni_aio_finish(aio, 0, len);
|
if (nni_lmq_full(&s->wmq)) {
|
nni_pollable_clear(&s->writable);
|
}
|
nni_mtx_unlock(&s->mtx);
|
return;
|
}
|
|
if ((rv = nni_aio_schedule(aio, pair1_cancel, s)) != 0) {
|
nni_aio_finish_error(aio, rv);
|
nni_mtx_unlock(&s->mtx);
|
return;
|
}
|
nni_aio_list_append(&s->waq, aio);
|
nni_mtx_unlock(&s->mtx);
|
}
|
|
static void
|
pair1_sock_recv(void *arg, nni_aio *aio)
|
{
|
pair1_sock *s = arg;
|
pair1_pipe *p;
|
nni_msg * m;
|
int rv;
|
|
if (nni_aio_begin(aio) != 0) {
|
return;
|
}
|
|
nni_mtx_lock(&s->mtx);
|
p = s->p;
|
|
// Buffered read. If there is a message waiting for us, pick
|
// it up. We might need to post another read request as well.
|
if (nni_lmq_getq(&s->rmq, &m) == 0) {
|
nni_aio_set_msg(aio, m);
|
nni_aio_finish(aio, 0, nni_msg_len(m));
|
if (s->rd_ready) {
|
s->rd_ready = false;
|
m = nni_aio_get_msg(&p->aio_recv);
|
nni_aio_set_msg(&p->aio_recv, NULL);
|
nni_lmq_putq(&s->rmq, m);
|
nni_pipe_recv(p->pipe, &p->aio_recv);
|
}
|
if (nni_lmq_empty(&s->rmq)) {
|
nni_pollable_clear(&s->readable);
|
}
|
nni_mtx_unlock(&s->mtx);
|
return;
|
}
|
|
// Unbuffered -- but waiting.
|
if (s->rd_ready) {
|
s->rd_ready = false;
|
m = nni_aio_get_msg(&p->aio_recv);
|
nni_aio_set_msg(&p->aio_recv, NULL);
|
nni_aio_set_msg(aio, m);
|
nni_aio_finish(aio, 0, nni_msg_len(m));
|
nni_pipe_recv(p->pipe, &p->aio_recv);
|
nni_pollable_clear(&s->readable);
|
nni_mtx_unlock(&s->mtx);
|
return;
|
}
|
|
if ((rv = nni_aio_schedule(aio, pair1_cancel, s)) != 0) {
|
nni_aio_finish_error(aio, rv);
|
} else {
|
nni_aio_list_append(&s->raq, aio);
|
}
|
nni_mtx_unlock(&s->mtx);
|
}
|
|
static int
|
pair1_set_send_buf_len(void *arg, const void *buf, size_t sz, nni_type t)
|
{
|
pair1_sock *s = arg;
|
int val;
|
int rv;
|
|
if ((rv = nni_copyin_int(&val, buf, sz, 0, 8192, t)) != 0) {
|
return (rv);
|
}
|
nni_mtx_lock(&s->mtx);
|
rv = nni_lmq_resize(&s->wmq, (size_t) val);
|
// Changing the size of the queue can affect our readiness.
|
if (!nni_lmq_full(&s->wmq)) {
|
nni_pollable_raise(&s->writable);
|
} else if (!s->wr_ready) {
|
nni_pollable_clear(&s->writable);
|
}
|
nni_mtx_unlock(&s->mtx);
|
return (rv);
|
}
|
|
static int
|
pair1_get_send_buf_len(void *arg, void *buf, size_t *szp, nni_opt_type t)
|
{
|
pair1_sock *s = arg;
|
int val;
|
|
nni_mtx_lock(&s->mtx);
|
val = nni_lmq_cap(&s->wmq);
|
nni_mtx_unlock(&s->mtx);
|
|
return (nni_copyout_int(val, buf, szp, t));
|
}
|
|
static int
|
pair1_set_recv_buf_len(void *arg, const void *buf, size_t sz, nni_type t)
|
{
|
pair1_sock *s = arg;
|
int val;
|
int rv;
|
|
if ((rv = nni_copyin_int(&val, buf, sz, 0, 8192, t)) != 0) {
|
return (rv);
|
}
|
nni_mtx_lock(&s->mtx);
|
rv = nni_lmq_resize(&s->rmq, (size_t) val);
|
// Changing the size of the queue can affect our readiness.
|
if (!nni_lmq_empty(&s->rmq)) {
|
nni_pollable_raise(&s->readable);
|
} else if (!s->rd_ready) {
|
nni_pollable_clear(&s->readable);
|
}
|
nni_mtx_unlock(&s->mtx);
|
return (rv);
|
}
|
|
static int
|
pair1_get_recv_buf_len(void *arg, void *buf, size_t *szp, nni_opt_type t)
|
{
|
pair1_sock *s = arg;
|
int val;
|
|
nni_mtx_lock(&s->mtx);
|
val = nni_lmq_cap(&s->rmq);
|
nni_mtx_unlock(&s->mtx);
|
|
return (nni_copyout_int(val, buf, szp, t));
|
}
|
|
static int
|
pair1_sock_get_recv_fd(void *arg, void *buf, size_t *szp, nni_opt_type t)
|
{
|
pair1_sock *s = arg;
|
int rv;
|
int fd;
|
|
if ((rv = nni_pollable_getfd(&s->readable, &fd)) != 0) {
|
return (rv);
|
}
|
return (nni_copyout_int(fd, buf, szp, t));
|
}
|
|
static int
|
pair1_sock_get_send_fd(void *arg, void *buf, size_t *szp, nni_opt_type t)
|
{
|
pair1_sock *s = arg;
|
int rv;
|
int fd;
|
|
if ((rv = nni_pollable_getfd(&s->writable, &fd)) != 0) {
|
return (rv);
|
}
|
return (nni_copyout_int(fd, buf, szp, t));
|
}
|
|
static nni_proto_pipe_ops pair1_pipe_ops = {
|
.pipe_size = sizeof(pair1_pipe),
|
.pipe_init = pair1_pipe_init,
|
.pipe_fini = pair1_pipe_fini,
|
.pipe_start = pair1_pipe_start,
|
.pipe_close = pair1_pipe_close,
|
.pipe_stop = pair1_pipe_stop,
|
};
|
|
static nni_option pair1_sock_options[] = {
|
{
|
.o_name = NNG_OPT_MAXTTL,
|
.o_get = pair1_sock_get_max_ttl,
|
.o_set = pair1_sock_set_max_ttl,
|
},
|
{
|
.o_name = NNG_OPT_RECVFD,
|
.o_get = pair1_sock_get_recv_fd,
|
},
|
{
|
.o_name = NNG_OPT_SENDFD,
|
.o_get = pair1_sock_get_send_fd,
|
},
|
{
|
.o_name = NNG_OPT_SENDBUF,
|
.o_get = pair1_get_send_buf_len,
|
.o_set = pair1_set_send_buf_len,
|
},
|
{
|
.o_name = NNG_OPT_RECVBUF,
|
.o_get = pair1_get_recv_buf_len,
|
.o_set = pair1_set_recv_buf_len,
|
},
|
#ifdef NNG_TEST_LIB
|
{
|
// Test only option to pass header unmolested. This allows
|
// us to inject bad header contents.
|
.o_name = "pair1_test_inject_header",
|
.o_set = pair1_set_test_inject_header,
|
},
|
#endif
|
// terminate list
|
{
|
.o_name = NULL,
|
},
|
};
|
|
static nni_proto_sock_ops pair1_sock_ops = {
|
.sock_size = sizeof(pair1_sock),
|
.sock_init = pair1_sock_init,
|
.sock_fini = pair1_sock_fini,
|
.sock_open = pair1_sock_open,
|
.sock_close = pair1_sock_close,
|
.sock_recv = pair1_sock_recv,
|
.sock_send = pair1_sock_send,
|
.sock_options = pair1_sock_options,
|
};
|
|
static nni_proto pair1_proto = {
|
.proto_version = NNI_PROTOCOL_VERSION,
|
.proto_self = { NNG_PAIR1_SELF, NNG_PAIR1_SELF_NAME },
|
.proto_peer = { NNG_PAIR1_PEER, NNG_PAIR1_PEER_NAME },
|
.proto_flags = NNI_PROTO_FLAG_SNDRCV,
|
.proto_sock_ops = &pair1_sock_ops,
|
.proto_pipe_ops = &pair1_pipe_ops,
|
};
|
|
int
|
nng_pair1_open(nng_socket *sock)
|
{
|
return (nni_proto_open(sock, &pair1_proto));
|
}
|
|
static nni_proto_sock_ops pair1_sock_ops_raw = {
|
.sock_size = sizeof(pair1_sock),
|
.sock_init = pair1_sock_init_raw,
|
.sock_fini = pair1_sock_fini,
|
.sock_open = pair1_sock_open,
|
.sock_close = pair1_sock_close,
|
.sock_recv = pair1_sock_recv,
|
.sock_send = pair1_sock_send,
|
.sock_options = pair1_sock_options,
|
};
|
|
static nni_proto pair1_proto_raw = {
|
.proto_version = NNI_PROTOCOL_VERSION,
|
.proto_self = { NNG_PAIR1_SELF, NNG_PAIR1_SELF_NAME },
|
.proto_peer = { NNG_PAIR1_PEER, NNG_PAIR1_PEER_NAME },
|
.proto_flags = NNI_PROTO_FLAG_SNDRCV | NNI_PROTO_FLAG_RAW,
|
.proto_sock_ops = &pair1_sock_ops_raw,
|
.proto_pipe_ops = &pair1_pipe_ops,
|
};
|
|
int
|
nng_pair1_open_raw(nng_socket *sock)
|
{
|
return (nni_proto_open(sock, &pair1_proto_raw));
|
}
|
