New GCCallbacks with additional parameters.

test/cctest/test-api.cc

 // Copyright 2007-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 9937 matching lines @@
   // This compile will get the code from the compilation cache.
   CompileRun(source);
 
   script = v8::Script::Compile(v8_str("new C1();"));
   for (int i = 0; i < 10; i++) {
     v8::Handle<v8::Object> c1 = v8::Handle<v8::Object>::Cast(script->Run());
     CHECK_EQ(42, c1->Get(v8_str("x"))->Int32Value());
     CHECK_EQ(23, c1->Get(v8_str("y"))->Int32Value());
   }
 }
+
+int prologue_call_count = 0;
+int epilogue_call_count = 0;
+int prologue_call_count_second = 0;
+int epilogue_call_count_second = 0;
+
+void PrologueCallback(v8::GCType, v8::GCCallbackFlags) {
+  ++prologue_call_count;
+}
+
+void EpilogueCallback(v8::GCType, v8::GCCallbackFlags) {
+  ++epilogue_call_count;
+}
+
+void PrologueCallbackSecond(v8::GCType, v8::GCCallbackFlags) {
+  ++prologue_call_count_second;
+}
+
+void EpilogueCallbackSecond(v8::GCType, v8::GCCallbackFlags) {
+  ++epilogue_call_count_second;
+}
+
+TEST(GCCallbacks) {
+  LocalContext context;
+
+  v8::V8::AddGCPrologueCallback(PrologueCallback);
+  v8::V8::AddGCEpilogueCallback(EpilogueCallback);
+  CHECK_EQ(0, prologue_call_count);
+  CHECK_EQ(0, epilogue_call_count);
+  i::Heap::CollectAllGarbage(false);
+  CHECK_EQ(1, prologue_call_count);
+  CHECK_EQ(1, epilogue_call_count);
+  v8::V8::AddGCPrologueCallback(PrologueCallbackSecond);
+  v8::V8::AddGCEpilogueCallback(EpilogueCallbackSecond);
+  i::Heap::CollectAllGarbage(false);
+  CHECK_EQ(2, prologue_call_count);
+  CHECK_EQ(2, epilogue_call_count);
+  CHECK_EQ(1, prologue_call_count_second);
+  CHECK_EQ(1, epilogue_call_count_second);
+  v8::V8::RemoveGCPrologueCallback(PrologueCallback);
+  v8::V8::RemoveGCEpilogueCallback(EpilogueCallback);
+  i::Heap::CollectAllGarbage(false);
+  CHECK_EQ(2, prologue_call_count);
+  CHECK_EQ(2, epilogue_call_count);
+  CHECK_EQ(2, prologue_call_count_second);
+  CHECK_EQ(2, epilogue_call_count_second);
+  v8::V8::RemoveGCPrologueCallback(PrologueCallbackSecond);
+  v8::V8::RemoveGCEpilogueCallback(EpilogueCallbackSecond);
+  i::Heap::CollectAllGarbage(false);
+  CHECK_EQ(2, prologue_call_count);
+  CHECK_EQ(2, epilogue_call_count);
+  CHECK_EQ(2, prologue_call_count_second);
+  CHECK_EQ(2, epilogue_call_count_second);
+}