- if (sem->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
- std::atomic_thread_fence(std::memory_order_acquire);
- delete sem;
- }
+ sem->pimpl_->unref();
+}
+
+} // namespace s4u
+} // namespace simgrid
+
+/* **************************** Public C interface *************************** */
+/** @brief creates a semaphore object of the given initial capacity */
+sg_sem_t sg_sem_init(int initial_value)
+{
+ return simgrid::s4u::Semaphore::create(initial_value).detach();
+}
+
+/** @brief locks on a semaphore object */
+void sg_sem_acquire(sg_sem_t sem)
+{
+ sem->acquire();
+}
+
+/** @brief locks on a semaphore object up until the provided timeout expires */
+int sg_sem_acquire_timeout(sg_sem_t sem, double timeout)
+{
+ return sem->acquire_timeout(timeout);
+}
+
+/** @brief releases the semaphore object */
+void sg_sem_release(sg_sem_t sem)
+{
+ sem->release();