341 lines
7.4 KiB
C
341 lines
7.4 KiB
C
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//
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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 <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <nng/nng.h>
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#include <nng/protocol/bus0/bus.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 <nng/transport/inproc/inproc.h>
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#include <nng/transport/ipc/ipc.h>
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#include <nng/transport/tcp/tcp.h>
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#include "convey.h"
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#include "stubs.h"
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#ifdef NDEBUG
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#define dprintf(...)
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#else
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#define dprintf printf
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#endif
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static int next_port = 20000; // port number kind of.
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char tcp4_template[] = "tcp://127.0.0.1:%d";
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char tcp6_template[] = "tcp://[::1]:%d";
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char inproc_template[] = "inproc://nng_reqstress_%d";
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char ipc_template[] = "ipc:///tmp/nng_reqstress_%d";
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char ws_template[] = "ws://127.0.0.1:%d/nng_reqstress";
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char *templates[] = {
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tcp4_template,
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// It would be nice to test TCPv6, but CI doesn't support it.
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// Outside of CI, it does seem to work though.
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#ifdef NNG_TEST_TCPV6
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tcp6_template,
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#endif
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inproc_template,
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ipc_template,
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#ifdef NNG_TRANSPORT_WS
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ws_template,
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#endif
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};
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#define NTEMPLATES (sizeof(templates) / sizeof(templates[0]))
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char **addresses;
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int naddresses;
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int allocaddrs;
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typedef struct test_case {
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nng_socket socket;
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const char *name;
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int nrecv;
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int nsend;
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int nfail;
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nng_aio * recv_aio;
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nng_aio * send_aio;
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nng_aio * time_aio;
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char buf[32];
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} test_case;
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static test_case *cases;
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int ncases;
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int curcase;
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void
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fatal(const char *msg, int rv)
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{
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fprintf(stderr, "%s: %s\n", msg, nng_strerror(rv));
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abort();
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}
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void
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error(test_case *c, const char *msg, int rv)
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{
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if ((rv == NNG_ECLOSED) || (rv == NNG_ECANCELED)) {
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return;
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}
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fprintf(
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stderr, "%s: %s: %s (%d)\n", c->name, msg, nng_strerror(rv), rv);
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c->nfail++;
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}
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// Get a random address -- TCP, IP, whatever.
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char *
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getaddr(char *buf)
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{
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int i;
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i = rand() % NTEMPLATES;
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snprintf(buf, NNG_MAXADDRLEN, templates[i], next_port++);
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return (buf);
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}
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// Request/Reply test. For this test, we open a server socket,
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// and bind it to each protocol. Then we run a bunch of clients
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// against it.
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// REP server implemented via callbacks.
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static void
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rep_recv_cb(void *arg)
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{
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test_case *c = arg;
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int rv;
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if ((rv = nng_aio_result(c->recv_aio)) != 0) {
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error(c, "recv", rv);
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return;
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}
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c->nrecv++;
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nng_aio_set_msg(c->send_aio, nng_aio_get_msg(c->recv_aio));
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nng_aio_set_msg(c->recv_aio, NULL);
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nng_send_aio(c->socket, c->send_aio);
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}
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static void
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rep_send_cb(void *arg)
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{
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test_case *c = arg;
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int rv;
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if ((rv = nng_aio_result(c->send_aio)) != 0) {
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error(c, "send", rv);
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nng_msg_free(nng_aio_get_msg(c->send_aio));
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nng_aio_set_msg(c->send_aio, NULL);
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return;
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}
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c->nsend++;
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nng_recv_aio(c->socket, c->recv_aio);
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}
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static void
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req_time_cb(void *arg)
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{
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test_case *c = arg;
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nng_msg * msg = NULL;
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int rv;
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if ((rv = nng_aio_result(c->time_aio)) != 0) {
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error(c, "sleep", rv);
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return;
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}
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(void) snprintf(
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c->buf, sizeof(c->buf), "%u-%d", c->socket.id, c->nsend);
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if (((rv = nng_msg_alloc(&msg, 0)) != 0) ||
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((rv = nng_msg_append(msg, c->buf, strlen(c->buf) + 1)) != 0)) {
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error(c, "alloc", rv);
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nng_msg_free(msg);
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return;
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}
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nng_aio_set_msg(c->send_aio, msg);
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nng_send_aio(c->socket, c->send_aio);
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}
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static void
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req_recv_cb(void *arg)
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{
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test_case *c = arg;
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nng_msg * msg = NULL;
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int rv;
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if ((rv = nng_aio_result(c->recv_aio)) != 0) {
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error(c, "recv", rv);
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return;
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}
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msg = nng_aio_get_msg(c->recv_aio);
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if ((nng_msg_len(msg) != (strlen(c->buf) + 1)) ||
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(strcmp(c->buf, nng_msg_body(msg)) != 0)) {
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error(c, "msg mismatch", rv);
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nng_msg_free(msg);
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return;
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}
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nng_msg_free(msg);
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memset(c->buf, 0, sizeof(c->buf));
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c->nrecv++;
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nng_sleep_aio(rand() % 10, c->time_aio);
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}
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static void
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req_send_cb(void *arg)
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{
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test_case *c = arg;
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int rv;
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if ((rv = nng_aio_result(c->send_aio)) != 0) {
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error(c, "send", rv);
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nng_msg_free(nng_aio_get_msg(c->send_aio));
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nng_aio_set_msg(c->send_aio, NULL);
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return;
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}
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c->nsend++;
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nng_recv_aio(c->socket, c->recv_aio);
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}
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void
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reqrep_test(int ntests)
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{
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test_case *srv, *cli;
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int i;
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char addr[NNG_MAXADDRLEN];
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int rv;
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if (ntests < 2) {
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// Need a client *and* a server.
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return;
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}
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srv = &cases[curcase++];
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srv->name = "rep";
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if ((rv = nng_rep0_open(&srv->socket)) != 0) {
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fatal("nng_rep0_open", rv);
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}
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if (((rv = nng_aio_alloc(&srv->send_aio, rep_send_cb, srv)) != 0) ||
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((rv = nng_aio_alloc(&srv->recv_aio, rep_recv_cb, srv)) != 0)) {
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fatal("nng_aio_alloc", rv);
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}
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nng_recv_aio(srv->socket, srv->recv_aio);
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for (i = 1; i < ntests; i++) {
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cli = &cases[curcase++];
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if (((rv = nng_aio_alloc(&cli->send_aio, req_send_cb, cli)) !=
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0) ||
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((rv = nng_aio_alloc(&cli->recv_aio, req_recv_cb, cli)) !=
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0) ||
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((rv = nng_aio_alloc(&cli->time_aio, req_time_cb, cli)) !=
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0)) {
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fatal("nng_aio_alloc", rv);
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}
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if ((rv = nng_req0_open(&cli->socket)) != 0) {
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fatal("nng_req0_open", rv);
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}
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cli->name = "req";
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getaddr(addr);
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dprintf("DOING reqrep0 (req %u rep %u) address: %s\n",
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cli->socket.id, srv->socket.id, addr);
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if ((rv = nng_listen(srv->socket, addr, NULL, 0)) != 0) {
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fatal("nng_listen", rv);
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}
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if ((rv = nng_dial(cli->socket, addr, NULL, 0)) != 0) {
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fatal("nng_dial", rv);
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}
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nng_sleep_aio(1, cli->time_aio);
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}
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}
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Main({
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int i;
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int tmo;
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char *str;
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if (((str = ConveyGetEnv("STRESSTIME")) == NULL) ||
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((tmo = atoi(str)) < 1)) {
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tmo = 30;
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}
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// We have to keep this relatively low by default because some
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// platforms don't support large numbers of sockets. (On macOS
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// laptop I can run this with 500 though.)
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if (((str = ConveyGetEnv("STRESSPRESSURE")) == NULL) ||
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((ncases = atoi(str)) < 1)) {
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ncases = 32;
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}
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// Each run should truly be random.
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srand((int) time(NULL));
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// Reduce the likelihood of address in use conflicts between
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// subsequent runs.
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next_port += (rand() % 100) * 100;
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i = ncases;
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cases = calloc(ncases, sizeof(test_case));
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while (i > 1) {
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int x = rand() % NTEMPLATES;
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if (x > i) {
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x = i;
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}
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reqrep_test(x);
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i -= x;
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}
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dprintf("WAITING for %d sec...\n", tmo);
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nng_msleep(tmo * 1000); // sleep 30 sec
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// Close the timeouts first, before closing sockets. This tends to
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// ensure that we complete exchanges.
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for (i = 0; i < ncases; i++) {
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nng_aio_stop(cases[i].time_aio);
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}
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nng_msleep(100);
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Test("Req/Rep Stress", {
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Convey("All tests worked", {
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for (i = 0; i < ncases; i++) {
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nng_aio_stop(cases[i].recv_aio);
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nng_aio_stop(cases[i].send_aio);
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nng_aio_stop(cases[i].time_aio);
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nng_aio_free(cases[i].recv_aio);
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nng_aio_free(cases[i].send_aio);
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nng_aio_free(cases[i].time_aio);
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if (cases[i].name != NULL) {
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dprintf(
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"RESULT socket %u (%s) sent %d "
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"recd %d fail %d\n",
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cases[i].socket.id, cases[i].name,
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cases[i].nsend, cases[i].nrecv,
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cases[i].nfail);
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So(cases[i].nfail == 0);
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So(cases[i].nsend > 0 ||
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cases[i].nrecv > 0);
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}
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}
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});
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});
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free(cases);
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nng_fini();
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})
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