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//
// Copyright 2024 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.
//
#include <stdlib.h>
#include <string.h>
#ifndef _WIN32
#include <sys/select.h>
#include <sys/time.h>
#endif
#include <nng/nng.h>
#include <nng/protocol/reqrep0/rep.h>
#include <nng/protocol/reqrep0/req.h>
#include "convey.h"
#include "stubs.h"
const char *addr = "inproc://bug346";
void
repthr(void *arg)
{
nng_socket rep = *(nng_socket *) arg;
nng_listener l;
int ifd;
PLATFD fd;
nng_listen(rep, addr, &l, NNG_FLAG_NONBLOCK);
nng_socket_get_int(rep, NNG_OPT_RECVFD, &ifd);
fd = ifd;
for (;;) {
fd_set fset;
struct timeval tmo;
char *msgbuf;
size_t msglen;
FD_ZERO(&fset);
FD_SET(fd, &fset);
tmo.tv_sec = 0;
tmo.tv_usec = 20 * 1000; // 20 msec
select(1, &fset, NULL, NULL, &tmo);
for (;;) {
int rv;
rv = nng_recv(rep, &msgbuf, &msglen,
NNG_FLAG_NONBLOCK | NNG_FLAG_ALLOC);
if (rv != 0) {
return;
}
nng_free(msgbuf, msglen);
int ok = 0;
rv = nng_send(rep, &ok, 4, NNG_FLAG_NONBLOCK);
if (rv == NNG_ECLOSED) {
return;
}
}
}
}
void
reqthr(void *arg)
{
nng_socket req = *(nng_socket *) arg;
nng_dial(req, addr, NULL, NNG_FLAG_NONBLOCK);
int query = 0;
// We just keep pounding out requests, no wait for response.
for (;;) {
int rv;
rv = nng_send(req, &query, sizeof(query), 0);
if (rv == NNG_ECLOSED) {
return;
}
nng_msleep(50);
}
}
#define NCLIENTS 10
nng_socket reqs[NCLIENTS];
nng_socket rep;
TestMain("Nonblocking Works", {
Convey("Running for 15 sec", {
nng_thread *server;
nng_thread *clients[NCLIENTS];
So(nng_rep0_open(&rep) == 0);
for (int i = 0; i < NCLIENTS; i++) {
So(nng_req0_open(&reqs[i]) == 0);
}
nng_thread_create(&server, repthr, &rep);
for (int i = 0; i < NCLIENTS; i++) {
nng_thread_create(&clients[i], reqthr, &reqs[i]);
}
nng_msleep(15000);
nng_close(rep);
nng_thread_destroy(server);
for (int i = 0; i < NCLIENTS; i++) {
nng_close(reqs[i]);
nng_thread_destroy(clients[i]);
}
});
})
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