Version 2.1.2.8

test/cctest/test-thread-termination.cc

 // Copyright 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 22 matching lines @@
 v8::internal::Semaphore* semaphore = NULL;
 
 
 v8::Handle<v8::Value> Signal(const v8::Arguments& args) {
   semaphore->Signal();
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::Value> TerminateCurrentThread(const v8::Arguments& args) {
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::V8::TerminateExecution();
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::Value> Fail(const v8::Arguments& args) {
   CHECK(false);
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::Value> Loop(const v8::Arguments& args) {
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::Handle<v8::String> source =
       v8::String::New("try { doloop(); fail(); } catch(e) { fail(); }");
-  v8::Script::Compile(source)->Run();
+  v8::Handle<v8::Value> result = v8::Script::Compile(source)->Run();
+  CHECK(result.IsEmpty());
+  CHECK(v8::V8::IsExecutionTerminating());
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::Value> DoLoop(const v8::Arguments& args) {
   v8::TryCatch try_catch;
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::Script::Compile(v8::String::New("function f() {"
                                       "  var term = true;"
                                       "  try {"
                                       "    while(true) {"
                                       "      if (term) terminate();"
                                       "      term = false;"
                                       "    }"
                                       "    fail();"
                                       "  } catch(e) {"
                                       "    fail();"
                                       "  }"
                                       "}"
                                       "f()"))->Run();
   CHECK(try_catch.HasCaught());
   CHECK(try_catch.Exception()->IsNull());
   CHECK(try_catch.Message().IsEmpty());
   CHECK(!try_catch.CanContinue());
+  CHECK(v8::V8::IsExecutionTerminating());
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::Value> DoLoopNoCall(const v8::Arguments& args) {
   v8::TryCatch try_catch;
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::Script::Compile(v8::String::New("var term = true;"
                                       "while(true) {"
                                       "  if (term) terminate();"
                                       "  term = false;"
                                       "}"))->Run();
   CHECK(try_catch.HasCaught());
   CHECK(try_catch.Exception()->IsNull());
   CHECK(try_catch.Message().IsEmpty());
   CHECK(!try_catch.CanContinue());
+  CHECK(v8::V8::IsExecutionTerminating());
   return v8::Undefined();
 }
 
 
 v8::Handle<v8::ObjectTemplate> CreateGlobalTemplate(
     v8::InvocationCallback terminate,
     v8::InvocationCallback doloop) {
   v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
   global->Set(v8::String::New("terminate"),
               v8::FunctionTemplate::New(terminate));
   global->Set(v8::String::New("fail"), v8::FunctionTemplate::New(Fail));
   global->Set(v8::String::New("loop"), v8::FunctionTemplate::New(Loop));
   global->Set(v8::String::New("doloop"), v8::FunctionTemplate::New(doloop));
   return global;
 }
 
 
 // Test that a single thread of JavaScript execution can terminate
 // itself.
 TEST(TerminateOnlyV8ThreadFromThreadItself) {
   v8::HandleScope scope;
   v8::Handle<v8::ObjectTemplate> global =
       CreateGlobalTemplate(TerminateCurrentThread, DoLoop);
   v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
   v8::Context::Scope context_scope(context);
+  CHECK(!v8::V8::IsExecutionTerminating());
   // Run a loop that will be infinite if thread termination does not work.
   v8::Handle<v8::String> source =
       v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
   v8::Script::Compile(source)->Run();
   // Test that we can run the code again after thread termination.
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::Script::Compile(source)->Run();
   context.Dispose();
 }
 
 
 // Test that a single thread of JavaScript execution can terminate
 // itself in a loop that performs no calls.
 TEST(TerminateOnlyV8ThreadFromThreadItselfNoLoop) {
   v8::HandleScope scope;
   v8::Handle<v8::ObjectTemplate> global =
       CreateGlobalTemplate(TerminateCurrentThread, DoLoopNoCall);
   v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
   v8::Context::Scope context_scope(context);
+  CHECK(!v8::V8::IsExecutionTerminating());
   // Run a loop that will be infinite if thread termination does not work.
   v8::Handle<v8::String> source =
       v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
   v8::Script::Compile(source)->Run();
+  CHECK(!v8::V8::IsExecutionTerminating());
   // Test that we can run the code again after thread termination.
   v8::Script::Compile(source)->Run();
   context.Dispose();
 }
 
 
 class TerminatorThread : public v8::internal::Thread {
   void Run() {
     semaphore->Wait();
+    CHECK(!v8::V8::IsExecutionTerminating());
     v8::V8::TerminateExecution();
   }
 };
 
 
 // Test that a single thread of JavaScript execution can be terminated
 // from the side by another thread.
 TEST(TerminateOnlyV8ThreadFromOtherThread) {
   semaphore = v8::internal::OS::CreateSemaphore(0);
   TerminatorThread thread;
   thread.Start();
 
   v8::HandleScope scope;
   v8::Handle<v8::ObjectTemplate> global = CreateGlobalTemplate(Signal, DoLoop);
   v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
   v8::Context::Scope context_scope(context);
+  CHECK(!v8::V8::IsExecutionTerminating());
   // Run a loop that will be infinite if thread termination does not work.
   v8::Handle<v8::String> source =
       v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
   v8::Script::Compile(source)->Run();
 
   thread.Join();
   delete semaphore;
   semaphore = NULL;
   context.Dispose();
 }
 
 
 class LoopingThread : public v8::internal::Thread {
  public:
   void Run() {
     v8::Locker locker;
     v8::HandleScope scope;
     v8_thread_id_ = v8::V8::GetCurrentThreadId();
     v8::Handle<v8::ObjectTemplate> global =
         CreateGlobalTemplate(Signal, DoLoop);
     v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
     v8::Context::Scope context_scope(context);
+    CHECK(!v8::V8::IsExecutionTerminating());
     // Run a loop that will be infinite if thread termination does not work.
     v8::Handle<v8::String> source =
         v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
     v8::Script::Compile(source)->Run();
     context.Dispose();
   }
 
   int GetV8ThreadId() { return v8_thread_id_; }
 
  private:
@@ skipping 28 matching lines @@
   delete semaphore;
   semaphore = NULL;
 }
 
 
 int call_count = 0;
 
 
 v8::Handle<v8::Value> TerminateOrReturnObject(const v8::Arguments& args) {
   if (++call_count == 10) {
+    CHECK(!v8::V8::IsExecutionTerminating());
     v8::V8::TerminateExecution();
     return v8::Undefined();
   }
   v8::Local<v8::Object> result = v8::Object::New();
   result->Set(v8::String::New("x"), v8::Integer::New(42));
   return result;
 }
 
 
 v8::Handle<v8::Value> LoopGetProperty(const v8::Arguments& args) {
   v8::TryCatch try_catch;
+  CHECK(!v8::V8::IsExecutionTerminating());
   v8::Script::Compile(v8::String::New("function f() {"
                                       "  try {"
                                       "    while(true) {"
                                       "      terminate_or_return_object().x;"
                                       "    }"
                                       "    fail();"
                                       "  } catch(e) {"
                                       "    fail();"
                                       "  }"
                                       "}"
                                       "f()"))->Run();
   CHECK(try_catch.HasCaught());
   CHECK(try_catch.Exception()->IsNull());
   CHECK(try_catch.Message().IsEmpty());
   CHECK(!try_catch.CanContinue());
+  CHECK(v8::V8::IsExecutionTerminating());
   return v8::Undefined();
 }
 
 
 // Test that we correctly handle termination exceptions if they are
 // triggered by the creation of error objects in connection with ICs.
 TEST(TerminateLoadICException) {
   v8::HandleScope scope;
   v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
   global->Set(v8::String::New("terminate_or_return_object"),
               v8::FunctionTemplate::New(TerminateOrReturnObject));
   global->Set(v8::String::New("fail"), v8::FunctionTemplate::New(Fail));
   global->Set(v8::String::New("loop"),
               v8::FunctionTemplate::New(LoopGetProperty));
 
   v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
   v8::Context::Scope context_scope(context);
+  CHECK(!v8::V8::IsExecutionTerminating());
   // Run a loop that will be infinite if thread termination does not work.
   v8::Handle<v8::String> source =
       v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
   call_count = 0;
   v8::Script::Compile(source)->Run();
   // Test that we can run the code again after thread termination.
+  CHECK(!v8::V8::IsExecutionTerminating());
   call_count = 0;
   v8::Script::Compile(source)->Run();
   context.Dispose();
 }