Allow StackFrameIterator to be used on a different thread than the isolate whose stack frames are b…

runtime/vm/os_win.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 "vm/globals.h"
 #if defined(TARGET_OS_WINDOWS)
 
 #include "vm/os.h"
 #include "vm/vtune.h"
 
@@ skipping 144 matching lines @@
 
 
 uword OS::GetStackSizeLimit() {
   // TODO(ager): Can you programatically determine the actual stack
   // size limit on Windows? The 2MB limit is set at link time. Maybe
   // that value should be propagated here?
   return 2 * MB;
 }
 
 
+bool OS::AllowStackFrameIteratorFromAnotherThread() {
+  return true;
+}
+
+
 int OS::NumberOfAvailableProcessors() {
   SYSTEM_INFO info;
   GetSystemInfo(&info);
   return info.dwNumberOfProcessors;
 }
 
 
 void OS::Sleep(int64_t millis) {
   ::Sleep(millis);
 }
@@ skipping 155 matching lines @@
 }
 
 
 void OS::Exit(int code) {
   exit(code);
 }
 
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_WINDOWS)