1 files changed, 21 insertions, 6 deletions
diff --git a/src/3rdparty/v8/src/platform-macos.cc b/src/3rdparty/v8/src/platform-macos.cc
index a937ed3..22d2bcf 100644
--- a/src/3rdparty/v8/src/platform-macos.cc
+++ b/src/3rdparty/v8/src/platform-macos.cc
@@ -471,6 +471,11 @@ bool VirtualMemory::ReleaseRegion(void* address, size_t size) {
 }
 
 
+bool VirtualMemory::HasLazyCommits() {
+  return false;
+}
+
+
 class Thread::PlatformData : public Malloced {
  public:
   PlatformData() : thread_(kNoThread) {}
@@ -682,17 +687,27 @@ Mutex* OS::CreateMutex() {
 class MacOSSemaphore : public Semaphore {
  public:
   explicit MacOSSemaphore(int count) {
-    semaphore_create(mach_task_self(), &semaphore_, SYNC_POLICY_FIFO, count);
+    int r;
+    r = semaphore_create(mach_task_self(),
+                         &semaphore_,
+                         SYNC_POLICY_FIFO,
+                         count);
+    ASSERT(r == KERN_SUCCESS);
   }
 
   ~MacOSSemaphore() {
-    semaphore_destroy(mach_task_self(), semaphore_);
+    int r;
+    r = semaphore_destroy(mach_task_self(), semaphore_);
+    ASSERT(r == KERN_SUCCESS);
   }
 
-  // The MacOS mach semaphore documentation claims it does not have spurious
-  // wakeups, the way pthreads semaphores do.  So the code from the linux
-  // platform is not needed here.
-  void Wait() { semaphore_wait(semaphore_); }
+  void Wait() {
+    int r;
+    do {
+      r = semaphore_wait(semaphore_);
+      ASSERT(r == KERN_SUCCESS || r == KERN_ABORTED);
+    } while (r == KERN_ABORTED);
+  }
 
   bool Wait(int timeout);