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Semaphores are no longer used, remove:

Browse source 
(empth_sem_t, empth_sem_create, empth_sem_signal, empth_sem_wait):
Remove.
[EMPTH_LWP] (lwpSem, lwpCreateSem, lwpSignal, lwpWait): Remove.
[EMPTH_W32] (loc_sem): Remove.
This commit is contained in:
Markus Armbruster 2007-02-08 12:29:16 +00:00
parent c1eb1bd5d2
commit c69cf0d1fd
7 changed files with 0 additions and 286 deletions
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59
src/lib/empthread/pthread.c
View file

@ -68,14 +68,6 @@ struct empth_t {
pthread_t id; /* thread id */
};
struct empth_sem_t {
pthread_mutex_t mtx_update; /* use it to update count */
int count;
char name[80];
pthread_mutex_t mtx_sem;
pthread_cond_t cnd_sem;
};
struct empth_rwlock_t {
char *name;
pthread_rwlock_t lock;
@ -415,57 +407,6 @@ empth_wait_for_signal(void)
}
}
empth_sem_t *
empth_sem_create(char *name, int cnt)
{
empth_sem_t *sm;
sm = malloc(sizeof(empth_sem_t));
if (!sm) {
logerror("out of memory at %s:%d", __FILE__, __LINE__);
return NULL;
}
strncpy(sm->name, name, sizeof(sm->name) - 1);
sm->count = cnt;
pthread_mutex_init(&sm->mtx_update, NULL);
pthread_mutex_init(&sm->mtx_sem, NULL);
pthread_cond_init(&sm->cnd_sem, NULL);
return sm;
}
void
empth_sem_signal(empth_sem_t *sm)
{
empth_status("signal on semaphore %s:%d", sm->name, sm->count);
pthread_mutex_lock(&sm->mtx_update);
if (sm->count++ < 0) {
pthread_mutex_unlock(&sm->mtx_update);
pthread_mutex_lock(&sm->mtx_sem);
pthread_cond_signal(&sm->cnd_sem);
pthread_mutex_unlock(&sm->mtx_sem);
} else
pthread_mutex_unlock(&sm->mtx_update);
}
void
empth_sem_wait(empth_sem_t *sm)
{
empth_status("wait on semaphore %s:%d", sm->name, sm->count);
pthread_mutex_lock(&sm->mtx_update);
if (--sm->count < 0) {
pthread_mutex_unlock(&sm->mtx_update);
empth_status("blocking");
pthread_mutex_unlock(&mtx_ctxsw);
pthread_mutex_lock(&sm->mtx_sem);
pthread_cond_wait(&sm->cnd_sem, &sm->mtx_sem);
empth_status("waking up");
pthread_mutex_unlock(&sm->mtx_sem);
pthread_mutex_lock(&mtx_ctxsw);
empth_restorectx();
} else
pthread_mutex_unlock(&sm->mtx_update);
}
empth_rwlock_t *
empth_rwlock_create(char *name)
{