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Added initial version of multithreading socket test
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goldsimon
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306
test/sockets/sockets_stresstest.c
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306
test/sockets/sockets_stresstest.c
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/**
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* @file
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* Sockets stresstest
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*
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* This file uses the lwIP socket API to do stress tests that should test the
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* stability when used in many different situations, with many concurrent
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* sockets making concurrent transfers in different manners.
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*
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* - test rely on loopback sockets for now, so netif drivers are not tested
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* - all enabled functions shall be used
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* - parallelism of the tests depend on enough resources being available
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* (configure your lwipopts.h settings high enough)
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* - test should also be able to run in your target, to test your
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*/
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/*
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* Copyright (c) 2017 Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt <goldsimon@gmx.de>
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*
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*/
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#include "lwip/opt.h"
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#include "sockets_stresstest.h"
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#include "lwip/sockets.h"
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#include "lwip/sys.h"
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#include <stdio.h>
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#include <string.h>
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#define TEST_TIME_SECONDS 10
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#define TEST_TXRX_BUFSIZE (TCP_MSS * 2)
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#define TEST_MAX_RXWAIT_MS 500
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#define TEST_MAX_CONNECTIONS 1
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#define TEST_MODE_SELECT 0x01
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#define TEST_MODE_POLL 0x02
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#define TEST_MODE_NONBLOCKING 0x04
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#define TEST_MODE_RECVTIMEO 0x08
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static int sockets_stresstest_numthreads;
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static void
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fill_test_data(void *buf, size_t buf_len_bytes)
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{
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u8_t *p = (u8_t*)buf;
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u16_t i, chk;
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LWIP_ASSERT("buffer too short", buf_len_bytes > 4);
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LWIP_ASSERT("buffer too big", buf_len_bytes <= 0xFFFF);
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/* store the total number of bytes */
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p[0] = (u8_t)(buf_len_bytes >> 8);
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p[1] = (u8_t)buf_len_bytes;
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/* fill buffer with random */
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chk = 0;
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for (i = 4; i < buf_len_bytes; i++) {
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u8_t rnd = (u8_t)LWIP_RAND();
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p[i] = rnd;
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chk += rnd;
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}
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/* store checksum */
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p[2] = (u8_t)(chk >> 8);
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p[3] = (u8_t)chk;
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}
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static size_t
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check_test_data(const void *buf, size_t buf_len_bytes)
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{
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u8_t *p = (u8_t*)buf;
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u16_t i, chk, chk_rx, len_rx;
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LWIP_ASSERT("buffer too short", buf_len_bytes > 4);
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len_rx = (((u16_t)p[0]) << 8) | p[1];
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LWIP_ASSERT("len too short", len_rx > 4);
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if (len_rx > buf_len_bytes) {
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/* not all data received in this segment */
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printf("check-\n");
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return buf_len_bytes;
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}
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chk_rx = (((u16_t)p[2]) << 8) | p[3];
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/* calculate received checksum */
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chk = 0;
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for (i = 4; i < len_rx; i++) {
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chk += p[i];
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}
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LWIP_ASSERT("invalid checksum", chk == chk_rx);
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if (len_rx < buf_len_bytes) {
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size_t data_left = buf_len_bytes - len_rx;
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memmove(p, &p[len_rx], data_left);
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return data_left;
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}
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/* if we come here, we received exactly one chunk
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-> next offset is 0 */
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return 0;
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}
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static size_t
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recv_and_check_data_return_offset(int s, char *rxbuf, size_t rxbufsize, size_t rxoff, int *closed, const char *dbg)
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{
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ssize_t ret;
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ret = lwip_read(s, &rxbuf[rxoff], rxbufsize - rxoff);
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if (ret == 0) {
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*closed = 1;
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return rxoff;
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}
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*closed = 0;
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printf("%s %d rx %d\n", dbg, s, (int)ret);
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LWIP_ASSERT("ret > 0", ret > 0);
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return check_test_data(rxbuf, rxoff + ret);
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}
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static void
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sockets_stresstest_conn_client(void *arg)
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{
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struct sockaddr_storage addr;
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struct sockaddr_in *addr_in;
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int s, ret;
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char txbuf[TEST_TXRX_BUFSIZE];
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char rxbuf[TEST_TXRX_BUFSIZE];
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size_t rxoff = 0;
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u32_t max_time = sys_now() + (TEST_TIME_SECONDS * 1000);
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memcpy(&addr, arg, sizeof(addr));
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LWIP_ASSERT("", addr.ss_family == AF_INET);
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addr_in = (struct sockaddr_in *)&addr;
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addr_in->sin_addr.s_addr = inet_addr("127.0.0.1");
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/* sleep a random time between 1 and 2 seconds */
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sys_msleep(1000 + (LWIP_RAND() % 1000));
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/* connect to the server */
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s = lwip_socket(addr.ss_family, SOCK_STREAM, 0);
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LWIP_ASSERT("s >= 0", s >= 0);
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ret = lwip_connect(s, (struct sockaddr *)&addr, sizeof(struct sockaddr_storage));
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LWIP_ASSERT("ret == 0", ret == 0);
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while (sys_now() < max_time) {
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int closed;
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struct pollfd pfd;
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pfd.fd = s;
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pfd.revents = 0;
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pfd.events = POLLIN;
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ret = lwip_poll(&pfd, 1, LWIP_RAND() % TEST_MAX_RXWAIT_MS);
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if (ret) {
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/* read some */
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LWIP_ASSERT("pfd.revents == POLLIN", pfd.revents == POLLIN);
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rxoff = recv_and_check_data_return_offset(s, rxbuf, sizeof(rxbuf), rxoff, &closed, "cli");
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LWIP_ASSERT("client got closed", !closed);
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} else {
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/* timeout, send some */
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size_t send_len = (LWIP_RAND() % (sizeof(txbuf) - 4)) + 4;
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fill_test_data(txbuf, send_len);
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printf("cli %d tx %d\n", s, (int)send_len);
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ret = lwip_write(s, txbuf, send_len);
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LWIP_ASSERT("ret >= 0", ret >= 0);
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}
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}
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ret = lwip_close(s);
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LWIP_ASSERT("ret == 0", ret == 0);
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{
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SYS_ARCH_DECL_PROTECT(lev);
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SYS_ARCH_PROTECT(lev);
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LWIP_ASSERT("", sockets_stresstest_numthreads > 0);
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sockets_stresstest_numthreads--;
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SYS_ARCH_UNPROTECT(lev);
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}
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}
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static void
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sockets_stresstest_conn_server(void *arg)
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{
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int s, ret;
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char txbuf[TEST_TXRX_BUFSIZE];
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char rxbuf[TEST_TXRX_BUFSIZE];
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size_t rxoff = 0;
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s = (int)arg;
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while (1) {
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int closed;
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struct pollfd pfd;
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pfd.fd = s;
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pfd.revents = 0;
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pfd.events = POLLIN;
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ret = lwip_poll(&pfd, 1, LWIP_RAND() % TEST_MAX_RXWAIT_MS);
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if (ret) {
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if (pfd.revents & POLLERR) {
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/* closed? */
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lwip_close(s);
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break;
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}
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/* read some */
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LWIP_ASSERT("pfd.revents == POLLIN", pfd.revents == POLLIN);
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rxoff = recv_and_check_data_return_offset(s, rxbuf, sizeof(rxbuf), rxoff, &closed, "srv");
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if (closed) {
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break;
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}
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} else {
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/* timeout, send some */
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size_t send_len = (LWIP_RAND() % (sizeof(txbuf) - 4)) + 4;
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fill_test_data(txbuf, send_len);
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printf("srv %d tx %d\n", s, (int)send_len);
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ret = lwip_write(s, txbuf, send_len);
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LWIP_ASSERT("ret >= 0", ret >= 0);
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}
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}
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ret = lwip_close(s);
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LWIP_ASSERT("ret == 0", ret == 0);
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{
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SYS_ARCH_DECL_PROTECT(lev);
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SYS_ARCH_PROTECT(lev);
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LWIP_ASSERT("", sockets_stresstest_numthreads > 0);
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sockets_stresstest_numthreads--;
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SYS_ARCH_UNPROTECT(lev);
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}
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}
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static void
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sockets_stresstest_listener(void *arg)
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{
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int slisten;
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int ret;
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int i;
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/* limit the number of connections */
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const int max_connections = LWIP_MIN(TEST_MAX_CONNECTIONS, MEMP_NUM_TCP_PCB/3);
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struct sockaddr_storage addr;
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socklen_t addr_len;
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LWIP_UNUSED_ARG(arg);
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slisten = lwip_socket(AF_INET, SOCK_STREAM, 0);
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LWIP_ASSERT("slisten >= 0", slisten >= 0);
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memset(&addr, 0, sizeof(addr));
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addr.ss_family = AF_INET;
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ret = lwip_bind(slisten, (struct sockaddr *)&addr, sizeof(addr));
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ret = lwip_listen(slisten, 0);
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LWIP_ASSERT("ret == 0", ret == 0);
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addr_len = sizeof(addr);
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ret = lwip_getsockname(slisten, (struct sockaddr *)&addr, &addr_len);
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LWIP_ASSERT("ret == 0", ret == 0);
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for (i = 0; i < max_connections; i++) {
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sys_thread_t t;
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sockets_stresstest_numthreads++;
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t = sys_thread_new("sockets_stresstest_conn_client", sockets_stresstest_conn_client, (void*)&addr, 0, 0);
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LWIP_ASSERT("thread != NULL", t != 0);
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}
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while(1) {
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struct sockaddr_storage aclient;
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socklen_t aclient_len = sizeof(aclient);
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int sclient = lwip_accept(slisten, (struct sockaddr *)&aclient, &aclient_len);
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#if 1
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/* using server threads */
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{
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sys_thread_t t;
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sockets_stresstest_numthreads++;
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t = sys_thread_new("sockets_stresstest_conn_server", sockets_stresstest_conn_server, (void*)sclient, 0, 0);
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LWIP_ASSERT("thread != NULL", t != 0);
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}
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#else
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/* using server select */
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#endif
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}
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}
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void
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sockets_stresstest_init(void)
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{
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sys_thread_t t;
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t = sys_thread_new("sockets_stresstest_listener", sockets_stresstest_listener, NULL, 0, 0);
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LWIP_ASSERT("thread != NULL", t != 0);
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}
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38
test/sockets/sockets_stresstest.h
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38
test/sockets/sockets_stresstest.h
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@ -0,0 +1,38 @@
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/*
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* Copyright (c) 2017 Simon Goldschmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt <goldsimon@gmx.de>
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*
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*/
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#ifndef LWIP_HDR_TEST_SOCKETS_STRESSTEST
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#define LWIP_HDR_TEST_SOCKETS_STRESSTEST
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void sockets_stresstest_init(void);
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#endif /* LWIP_HDR_TEST_SOCKETS_STRESSTEST */
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