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refs #182: research st, add multiple threadds.

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This commit is contained in:
winlin 2014-10-26 14:04:31 +08:00
parent 79ab9f05f3
commit 9aba47cbe3
1 changed files with 48 additions and 18 deletions
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66
trunk/research/st/srs.c
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@ -5,11 +5,16 @@
#define srs_trace(msg, ...) printf(msg, ##__VA_ARGS__);printf("\n")
st_mutex_t start = NULL;
st_cond_t cond = NULL;
st_mutex_t mutex = NULL;
void* pfn(void* arg)
void* master(void* arg)
{
// wait for main to start this thread.
st_mutex_lock(start);
st_mutex_unlock(start);
st_usleep(100 * 1000);
st_cond_signal(cond);
@ -24,6 +29,30 @@ void* pfn(void* arg)
return NULL;
}
void* slave(void* arg)
{
// lock mutex to control thread.
st_mutex_lock(mutex);
// wait for main to start this thread.
st_mutex_lock(start);
st_mutex_unlock(start);
// wait thread to ready.
st_cond_wait(cond);
srs_trace("1. st cond is ok");
// release mutex to control thread
st_usleep(100 * 1000);
st_mutex_unlock(mutex);
// wait thread to exit.
st_cond_wait(cond);
srs_trace("4. st is ok");
return NULL;
}
int main(int argc, char** argv)
{
if (st_set_eventsys(ST_EVENTSYS_ALT) < 0) {
@ -36,40 +65,41 @@ int main(int argc, char** argv)
return -1;
}
if ((start = st_mutex_new()) == NULL) {
srs_trace("st_mutex_new start failed");
return -1;
}
st_mutex_lock(start);
if ((cond = st_cond_new()) == NULL) {
srs_trace("st_cond_new failed");
srs_trace("st_cond_new cond failed");
return -1;
}
if ((mutex = st_mutex_new()) == NULL) {
srs_trace("st_mutex_new failed");
srs_trace("st_mutex_new mutex failed");
return -1;
}
if (!st_thread_create(pfn, NULL, 0, 0)) {
if (!st_thread_create(master, NULL, 0, 0)) {
srs_trace("st_thread_create failed");
return -1;
}
// lock mutex to control thread.
st_mutex_lock(mutex);
if (!st_thread_create(slave, NULL, 0, 0)) {
srs_trace("st_thread_create failed");
return -1;
}
// wait thread to ready.
st_cond_wait(cond);
srs_trace("1. st cond is ok");
// release mutex to control thread
st_usleep(100 * 1000);
st_mutex_unlock(mutex);
// wait thread to exit.
st_cond_wait(cond);
srs_trace("4. st is ok");
// run all threads.
st_mutex_unlock(start);
// cleanup.
st_thread_exit(NULL);
st_mutex_destroy(start);
st_cond_destroy(cond);
st_mutex_destroy(mutex);
st_thread_exit(NULL);
return 0;
}