Split handle scopes into an internal version and a version accessible...

src/v8threads.cc

 // Copyright 2008 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 20 matching lines @@
 #include "debug.h"
 #include "execution.h"
 #include "v8threads.h"
 #include "regexp-stack.h"
 
 namespace v8 {
 
 static internal::Thread::LocalStorageKey thread_state_key =
     internal::Thread::CreateThreadLocalKey();
 
+
+// Track whether this V8 instance has ever called v8::Locker. This allows the
+// API code to verify that the lock is always held when V8 is being entered.
+bool Locker::active_ = false;
+
+
 // Constructor for the Locker object.  Once the Locker is constructed the
 // current thread will be guaranteed to have the big V8 lock.
 Locker::Locker() : has_lock_(false), top_level_(true) {
+  // Record that the Locker has been used at least once.
+  active_ = true;
   // Get the big lock if necessary.
   if (!internal::ThreadManager::IsLockedByCurrentThread()) {
     internal::ThreadManager::Lock();
     has_lock_ = true;
     // This may be a locker within an unlocker in which case we have to
     // get the saved state for this thread and restore it.
     if (internal::ThreadManager::RestoreThread()) {
       top_level_ = false;
     }
   }
@@ skipping 275 matching lines @@
 // Acknowledge the preemption by the receiving thread.
 void ContextSwitcher::PreemptionReceived() {
   ASSERT(Locker::IsLocked());
   // There is currently no accounting being done for this. But could be in the
   // future, which is why we leave this in.
 }
 
 
 }  // namespace internal
 }  // namespace v8