Per-isolate v8::Locker and v8::Unlocker

src/execution.cc

 // Copyright 2011 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 439 matching lines @@
 
 
 void StackGuard::ClearThread(const ExecutionAccess& lock) {
   thread_local_.Clear();
   isolate_->heap()->SetStackLimits();
 }
 
 
 void StackGuard::InitThread(const ExecutionAccess& lock) {
   if (thread_local_.Initialize()) isolate_->heap()->SetStackLimits();
-  uintptr_t stored_limit =
-      Isolate::CurrentPerIsolateThreadData()->stack_limit();
-  // You should hold the ExecutionAccess lock when you call this.
-  if (stored_limit != 0) {
-    StackGuard::SetStackLimit(stored_limit);
+  Isolate::PerIsolateThreadData* per_thread =
+      isolate_->FindOrAllocatePerThreadDataForThisThread();

[Vitaly Repeshko, 2011/04/15 00:29:39]

Are you sure you need "OrAllocate" here?

[Dmitry Lomov, 2011/04/19 01:50:47]

It is actually the if below that was bogus - done

+  if (per_thread != NULL) {
+    uintptr_t stored_limit = per_thread->stack_limit();
+    // You should hold the ExecutionAccess lock when you call this.
+    if (stored_limit != 0) {
+      StackGuard::SetStackLimit(stored_limit);
+    }
   }
 }
 
 
 // --- C a l l s   t o   n a t i v e s ---
 
 #define RETURN_NATIVE_CALL(name, argc, argv, has_pending_exception)            \
   do {                                                                         \
     Isolate* isolate = Isolate::Current();                                     \
     Object** args[argc] = argv;                                                \
@@ skipping 307 matching lines @@
     return isolate->TerminateExecution();
   }
   if (stack_guard->IsInterrupted()) {
     stack_guard->Continue(INTERRUPT);
     return isolate->StackOverflow();
   }
   return isolate->heap()->undefined_value();
 }
 
 } }  // namespace v8::internal