- Account for number of pending tasks in old-space collections.

runtime/vm/dart_api_impl_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/builtin.h"
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
@@ skipping 7174 matching lines @@
       "\n"
       "void main() {\n"
       "  Native.markMainEntered();\n"
       "  while (true) {\n"  // Infinite empty loop.
       "  }\n"
       "}\n";
 
   // Tell the other thread that shared_isolate is created.
   Dart_Handle lib;
   {
-    sync->Enter();
+    MonitorLocker ml(sync);
     char* error = NULL;
     shared_isolate = Dart_CreateIsolate(NULL, NULL,
                                         bin::snapshot_buffer,
                                         NULL, &error);
     EXPECT(shared_isolate != NULL);
     Dart_EnterScope();
     Dart_Handle url = NewString(TestCase::url());
     Dart_Handle source = NewString(kScriptChars);
     Dart_Handle result = Dart_SetLibraryTagHandler(TestCase::library_handler);
     EXPECT_VALID(result);
     lib = Dart_LoadScript(url, source, 0, 0);
     EXPECT_VALID(lib);
     result = Dart_FinalizeLoading(false);
     EXPECT_VALID(result);
     result =
         Dart_SetNativeResolver(lib, &IsolateInterruptTestNativeLookup, NULL);
     DART_CHECK_VALID(result);
 
-    sync->Notify();
-    sync->Exit();
+    ml.Notify();
   }
 
   Dart_Handle result = Dart_Invoke(lib, NewString("main"), 0, NULL);
   EXPECT(Dart_IsError(result));
   EXPECT(Dart_ErrorHasException(result));
   EXPECT_SUBSTRING("Unhandled exception:\nfoo\n",
                    Dart_GetError(result));
 
   Dart_ExitScope();
   Dart_ShutdownIsolate();
 
-  // Tell the other thread that we are done (don't use MonitorLocker
-  // as there is no current isolate any more).
-  sync->Enter();
-  shared_isolate = NULL;
-  sync->Notify();
-  sync->Exit();
+  // Tell the other thread that we are done.
+  {
+    MonitorLocker ml(sync);
+    shared_isolate = NULL;
+    ml.Notify();
+  }
 }
 
 
 // This callback handles isolate interrupts for the IsolateInterrupt
 // test.  It ignores the first two interrupts and throws an exception
 // on the third interrupt.
 const int kInterruptCount = 10;
 static int interrupt_count = 0;
 static bool IsolateInterruptTestCallback() {
   OS::Print(" ========== Interrupt callback called #%d\n", interrupt_count + 1);
@@ skipping 1401 matching lines @@
                                    NewString("main"),
                                    1,
                                    dart_args);
   int64_t value = 0;
   result = Dart_IntegerToInt64(result, &value);
   EXPECT_VALID(result);
   EXPECT_EQ(6, value);
 }
 
 }  // namespace dart