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126 lines
2.6 KiB
C
126 lines
2.6 KiB
C
#include <unistd.h>
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#include <stdio.h>
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#include "public.h"
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#define srs_trace(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
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st_mutex_t sync_start = NULL;
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st_cond_t sync_cond = NULL;
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st_mutex_t sync_mutex = NULL;
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st_cond_t sync_end = NULL;
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void* sync_master(void* arg)
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{
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// wait for main to sync_start this thread.
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st_mutex_lock(sync_start);
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st_mutex_unlock(sync_start);
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st_usleep(100 * 1000);
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st_cond_signal(sync_cond);
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st_mutex_lock(sync_mutex);
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srs_trace("2. st mutex is ok");
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st_mutex_unlock(sync_mutex);
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st_usleep(100 * 1000);
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srs_trace("3. st thread is ok");
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st_cond_signal(sync_cond);
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return NULL;
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}
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void* sync_slave(void* arg)
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{
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// lock mutex to control thread.
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st_mutex_lock(sync_mutex);
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// wait for main to sync_start this thread.
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st_mutex_lock(sync_start);
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st_mutex_unlock(sync_start);
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// wait thread to ready.
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st_cond_wait(sync_cond);
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srs_trace("1. st cond is ok");
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// release mutex to control thread
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st_usleep(100 * 1000);
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st_mutex_unlock(sync_mutex);
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// wait thread to exit.
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st_cond_wait(sync_cond);
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srs_trace("4. st is ok");
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st_cond_signal(sync_end);
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return NULL;
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}
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int sync_test()
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{
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srs_trace("sync test: start");
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if ((sync_start = st_mutex_new()) == NULL) {
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srs_trace("st_mutex_new sync_start failed");
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return -1;
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}
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st_mutex_lock(sync_start);
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if ((sync_cond = st_cond_new()) == NULL) {
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srs_trace("st_cond_new cond failed");
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return -1;
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}
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if ((sync_end = st_cond_new()) == NULL) {
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srs_trace("st_cond_new end failed");
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return -1;
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}
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if ((sync_mutex = st_mutex_new()) == NULL) {
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srs_trace("st_mutex_new mutex failed");
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return -1;
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}
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if (!st_thread_create(sync_master, NULL, 0, 0)) {
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srs_trace("st_thread_create failed");
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return -1;
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}
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if (!st_thread_create(sync_slave, NULL, 0, 0)) {
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srs_trace("st_thread_create failed");
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return -1;
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}
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// run all threads.
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st_mutex_unlock(sync_start);
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st_cond_wait(sync_end);
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srs_trace("sync test: end");
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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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if (st_set_eventsys(ST_EVENTSYS_ALT) < 0) {
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srs_trace("st_set_eventsys failed");
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return -1;
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}
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if (st_init() < 0) {
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srs_trace("st_init failed");
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return -1;
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}
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if (sync_test() < 0) {
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srs_trace("sync_test failed");
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return -1;
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}
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// cleanup.
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st_thread_exit(NULL);
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return 0;
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}
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