X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/00b2e701ab8ca3dd350bb8e9d65313986cabe8f0..361258ab0fbf44b907a966b0ad83c46fe7353925:/src/s4u/s4u_Barrier.cpp

diff --git a/src/s4u/s4u_Barrier.cpp b/src/s4u/s4u_Barrier.cpp
index a8ce588842..fb71bbb4c9 100644
--- a/src/s4u/s4u_Barrier.cpp
+++ b/src/s4u/s4u_Barrier.cpp
@@ -6,12 +6,11 @@
 #include <exception>
 #include <mutex>
 
-#include <xbt/ex.hpp>
-#include <xbt/log.hpp>
-
+#include "simgrid/Exception.hpp"
 #include "simgrid/barrier.h"
 #include "simgrid/s4u/Barrier.hpp"
 #include "simgrid/simix.h"
+#include "xbt/log.hpp"
 
 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_barrier, "S4U barrier");
 
@@ -22,6 +21,15 @@ Barrier::Barrier(unsigned int expected_processes) : mutex_(Mutex::create()), con
 {
 }
 
+/** @brief Create a new barrier
+ *
+ * See @ref s4u_raii.
+ */
+BarrierPtr Barrier::create(unsigned int expected_processes)
+{
+    return BarrierPtr(new Barrier(expected_processes));
+}
+
 /**
  * Wait functions
  */
@@ -41,6 +49,21 @@ int Barrier::wait()
   mutex_->unlock();
   return 0;
 }
+
+void intrusive_ptr_add_ref(Barrier* barrier)
+{
+  xbt_assert(barrier);
+  barrier->refcount_.fetch_add(1, std::memory_order_relaxed);
+}
+
+void intrusive_ptr_release(Barrier* barrier)
+{
+  xbt_assert(barrier);
+  if (barrier->refcount_.fetch_sub(1, std::memory_order_release) == 1) {
+    std::atomic_thread_fence(std::memory_order_acquire);
+    delete barrier;
+  }
+}
 } // namespace s4u
 } // namespace simgrid