feat(lib): safe queue is empty

tomasanchez · Jun 2, 2022 · 5d559e9 · 5d559e9
1 parent 3dbfe2c
commit 5d559e9
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diff --git a/lib/inc/util/queue/safe_queue.h b/lib/inc/util/queue/safe_queue.h
@@ -68,3 +68,11 @@ void *safe_queue_pop(safe_queue_t *queue);
  * @return an element reference
  */
 void *safe_queue_peek(safe_queue_t *queue);
+
+/**
+ * @brief Tells wether a queue is empty or not (thread safe)
+ *
+ * @param queue the queue itself
+ * @return true when no elements are equeued, false when there are elements
+ */
+bool safe_queue_is_empty(safe_queue_t *queue);
diff --git a/lib/src/util/queue/safe_queue.c b/lib/src/util/queue/safe_queue.c
@@ -38,6 +38,14 @@ void *safe_queue_pop(safe_queue_t *this)
 	return e;
 }
 
+bool safe_queue_is_empty(safe_queue_t *this)
+{
+	pthread_mutex_lock(&this->_mtx);
+	bool is_empty = queue_is_empty(this->_queue);
+	pthread_mutex_unlock(&this->_mtx);
+	return is_empty;
+}
+
 void *safe_queue_peek(safe_queue_t *this)
 {
 	// The element to be peeked in the queue