//
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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 <string.h>
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#ifndef _WIN32
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#include <sys/select.h>
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#include <sys/time.h>
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#endif
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#include <nng/nng.h>
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#include <nng/protocol/reqrep0/rep.h>
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#include <nng/protocol/reqrep0/req.h>
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#include <nng/supplemental/util/platform.h>
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#include "convey.h"
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#include "stubs.h"
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const char *addr = "inproc://bug346";
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void
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repthr(void *arg)
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{
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nng_socket rep = *(nng_socket *) arg;
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nng_listener l;
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int ifd;
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PLATFD fd;
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nng_listen(rep, addr, &l, NNG_FLAG_NONBLOCK);
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nng_getopt_int(rep, NNG_OPT_RECVFD, &ifd);
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fd = ifd;
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for (;;) {
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fd_set fset;
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struct timeval tmo;
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char * msgbuf;
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size_t msglen;
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FD_ZERO(&fset);
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FD_SET(fd, &fset);
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tmo.tv_sec = 0;
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tmo.tv_usec = 20 * 1000; // 20 msec
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select(1, &fset, NULL, NULL, &tmo);
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for (;;) {
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int rv;
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rv = nng_recv(rep, &msgbuf, &msglen,
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NNG_FLAG_NONBLOCK | NNG_FLAG_ALLOC);
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if (rv != 0) {
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return;
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}
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nng_free(msgbuf, msglen);
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int ok = 0;
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rv = nng_send(rep, &ok, 4, NNG_FLAG_NONBLOCK);
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if (rv == NNG_ECLOSED) {
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return;
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}
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}
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}
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}
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void
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reqthr(void *arg)
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{
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nng_socket req = *(nng_socket *) arg;
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nng_dial(req, addr, NULL, NNG_FLAG_NONBLOCK);
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int query = 0;
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// We just keep pounding out requests, no wait for response.
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for (;;) {
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int rv;
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rv = nng_send(req, &query, sizeof(query), 0);
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if (rv == NNG_ECLOSED) {
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return;
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}
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nng_msleep(50);
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}
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}
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#define NCLIENTS 10
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nng_socket reqs[NCLIENTS];
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nng_socket rep;
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TestMain("Nonblocking Works", {
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Convey("Running for 15 sec", {
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nng_thread *server;
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nng_thread *clients[NCLIENTS];
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So(nng_rep0_open(&rep) == 0);
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for (int i = 0; i < NCLIENTS; i++) {
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So(nng_req0_open(&reqs[i]) == 0);
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}
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nng_thread_create(&server, repthr, &rep);
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for (int i = 0; i < NCLIENTS; i++) {
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nng_thread_create(&clients[i], reqthr, &reqs[i]);
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}
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nng_msleep(15000);
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nng_close(rep);
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nng_thread_destroy(server);
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for (int i = 0; i < NCLIENTS; i++) {
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nng_close(reqs[i]);
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nng_thread_destroy(clients[i]);
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}
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});
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})
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