Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

sdk/lib/posix/pthread_barrier.c

@@ -0,0 +1,106 @@
+#include "sys_config.h"
+#include "typesdef.h"
+#include "errno.h"
+#include "osal/semaphore.h"
+#include "osal/task.h"
+#include "osal/string.h"
+#include "osal/timer.h"
+#include "osal/mutex.h"
+#include "lib/common/rbuffer.h"
+#include "lib/posix/pthread.h"
+
+#ifdef TXWSDK_POSIX
+
+int pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
+{
+    if (!attr) {
+        return -EINVAL;
+    }
+    return 0;
+}
+
+int pthread_barrierattr_init(pthread_barrierattr_t *attr)
+{
+    if (!attr) {
+        return -EINVAL;
+    }
+    *attr = PTHREAD_PROCESS_PRIVATE;
+    return 0;
+}
+
+int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared)
+{
+    if (!attr) {
+        return -EINVAL;
+    }
+    *pshared = (int) * attr;
+    return 0;
+}
+
+int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
+{
+    if (!attr) {
+        return -EINVAL;
+    }
+    if (pshared == PTHREAD_PROCESS_PRIVATE) {
+        attr = PTHREAD_PROCESS_PRIVATE;
+    }
+    return -EINVAL;
+}
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier)
+{
+    int32 result;
+
+    if (!barrier) {
+        return -EINVAL;
+    }
+    result = pthread_cond_destroy(&(barrier->cond));
+    return result;
+}
+
+int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, int count)
+{
+    if (!barrier) {
+        return -EINVAL;
+    }
+
+    if (attr && (*attr != PTHREAD_PROCESS_PRIVATE)) {
+        return -EINVAL;
+    }
+
+    barrier->count = count;
+    pthread_cond_init(&(barrier->cond), NULL);
+    pthread_mutex_init(&(barrier->mutex), NULL);
+    return 0;
+}
+
+int pthread_barrier_wait(pthread_barrier_t *barrier)
+{
+    int32 result;
+
+    if (!barrier) {
+        return -EINVAL;
+    }
+
+    result = pthread_mutex_lock(&(barrier->mutex));
+    if (result != 0) {
+        return -EINVAL;
+    }
+
+    if (barrier->count == 0) {
+        result = EINVAL;
+    } else {
+        barrier->count -= 1;
+        if (barrier->count == 0) { /* broadcast condition */
+            pthread_cond_broadcast(&(barrier->cond));
+        } else {
+            pthread_cond_wait(&(barrier->cond), &(barrier->mutex));
+        }
+    }
+    pthread_mutex_unlock(&(barrier->mutex));
+    return result;
+}
+
+#endif
+