124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
/*
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* Copyright (c) 2020 YuQing <384681@qq.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the Lesser GNU General Public License, version 3
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* or later ("LGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the Lesser GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <time.h>
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#include <inttypes.h>
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#include <sys/time.h>
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#include "fastcommon/logger.h"
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#include "fastcommon/shared_func.h"
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#include "fastcommon/sched_thread.h"
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#include "fastcommon/pthread_func.h"
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#include "fastcommon/ini_file_reader.h"
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#include "fastcommon/fast_allocator.h"
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#define LOOP_COUNT (100 * 1000 * 1000)
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#define barrier() __asm__ __volatile__("" ::: "memory")
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static volatile int counter = 0;
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#define THREAD_COUNT 9
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pthread_t tids[THREAD_COUNT];
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void *thread2_func(void *args)
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{
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int i;
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for (i=0; i<LOOP_COUNT; i++) {
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__sync_add_and_fetch(&counter, 1);
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}
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return NULL;
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}
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void *thread1_func(void *args)
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{
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int i;
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for (i=0; i<LOOP_COUNT; i++) {
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__sync_sub_and_fetch(&counter, 1);
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}
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return NULL;
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}
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void *wait_thread_func(void *args)
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{
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int i;
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for (i=0; i<LOOP_COUNT; i++) {
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__sync_add_and_fetch(&counter, 0);
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}
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return NULL;
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}
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int test()
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{
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int result;
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int i;
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pthread_t *tid;
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tid = tids;
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for (i=0; i<THREAD_COUNT / 2; i++) {
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if ((result=pthread_create(tid++, NULL, thread1_func, NULL)) != 0) {
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logError("file: "__FILE__", line: %d, "
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"create thread fail, "
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"errno: %d, error info: %s",
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__LINE__, result, STRERROR(result));
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return result;
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}
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}
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for (i=0; i<THREAD_COUNT / 2; i++) {
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if ((result=pthread_create(tid++, NULL, thread2_func, NULL)) != 0) {
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logError("file: "__FILE__", line: %d, "
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"create thread fail, "
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"errno: %d, error info: %s",
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__LINE__, result, STRERROR(result));
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return result;
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}
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}
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if ((result=pthread_create(tid++, NULL, wait_thread_func, NULL)) != 0) {
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logError("file: "__FILE__", line: %d, "
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"create thread fail, "
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"errno: %d, error info: %s",
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__LINE__, result, STRERROR(result));
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return result;
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}
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for (i=0; i<THREAD_COUNT; i++) {
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pthread_join(tids[i], NULL);
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}
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return 0;
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}
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int main(int argc, char *argv[])
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{
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int result;
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int64_t start_time;
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log_init();
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srand(time(NULL));
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g_log_context.log_level = LOG_DEBUG;
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start_time = get_current_time_ms();
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result = test();
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printf("counter: %d, time used: %"PRId64" ms\n",
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__sync_add_and_fetch(&counter, 0),
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get_current_time_ms() - start_time);
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return result;
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}
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