!195 feat: L0新增posix接口sem_getvalue

Merge pull request !195 from x_xiny/master
2021-06-24 07:15:06 +00:00
parent 2e92427d8f 8649b14591
commit eca03e5ed6
3 changed files with 32 additions and 0 deletions
--- a/kal/posix/src/semaphore.c
+++ b/kal/posix/src/semaphore.c
@@ -186,3 +186,21 @@ int sem_timedwait(sem_t *sem, const struct timespec *timeout)

    return 0;
 }
+
+int sem_getvalue(sem_t *sem, int *currVal)
+{
+    UINT32 ret;
+
+    if ((sem == NULL) || (currVal == NULL)) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    ret = LOS_SemGetValue(sem->s_handle, currVal);
+    if (ret) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    return LOS_OK;
+}