| // 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 |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| #include "platform.h" |
| #include "cctest.h" |
| |
| |
| 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::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 { |
| public: |
| explicit TerminatorThread(i::Isolate* isolate) |
| : Thread("TerminatorThread"), |
| isolate_(reinterpret_cast<v8::Isolate*>(isolate)) { } |
| void Run() { |
| semaphore->Wait(); |
| CHECK(!v8::V8::IsExecutionTerminating(isolate_)); |
| v8::V8::TerminateExecution(isolate_); |
| } |
| |
| private: |
| v8::Isolate* isolate_; |
| }; |
| |
| |
| // 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(i::Isolate::Current()); |
| 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: |
| LoopingThread() : Thread("LoopingThread") { } |
| 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: |
| int v8_thread_id_; |
| }; |
| |
| |
| // Test that multiple threads using default isolate can be terminated |
| // from another thread when using Lockers and preemption. |
| TEST(TerminateMultipleV8ThreadsDefaultIsolate) { |
| { |
| v8::Locker locker; |
| v8::V8::Initialize(); |
| v8::Locker::StartPreemption(1); |
| semaphore = v8::internal::OS::CreateSemaphore(0); |
| } |
| const int kThreads = 2; |
| i::List<LoopingThread*> threads(kThreads); |
| for (int i = 0; i < kThreads; i++) { |
| threads.Add(new LoopingThread()); |
| } |
| for (int i = 0; i < kThreads; i++) { |
| threads[i]->Start(); |
| } |
| // Wait until all threads have signaled the semaphore. |
| for (int i = 0; i < kThreads; i++) { |
| semaphore->Wait(); |
| } |
| { |
| v8::Locker locker; |
| for (int i = 0; i < kThreads; i++) { |
| v8::V8::TerminateExecution(threads[i]->GetV8ThreadId()); |
| } |
| } |
| for (int i = 0; i < kThreads; i++) { |
| threads[i]->Join(); |
| delete threads[i]; |
| } |
| { |
| v8::Locker locker; |
| v8::Locker::StopPreemption(); |
| } |
| |
| 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(); |
| } |
| |
| v8::Handle<v8::Value> ReenterAfterTermination(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()); |
| v8::Script::Compile(v8::String::New("function f() { fail(); } f()"))->Run(); |
| return v8::Undefined(); |
| } |
| |
| // Test that reentry into V8 while the termination exception is still pending |
| // (has not yet unwound the 0-level JS frame) does not crash. |
| TEST(TerminateAndReenterFromThreadItself) { |
| v8::HandleScope scope; |
| v8::Handle<v8::ObjectTemplate> global = |
| CreateGlobalTemplate(TerminateCurrentThread, ReenterAfterTermination); |
| v8::Persistent<v8::Context> context = v8::Context::New(NULL, global); |
| v8::Context::Scope context_scope(context); |
| CHECK(!v8::V8::IsExecutionTerminating()); |
| v8::Handle<v8::String> source = |
| v8::String::New("try { loop(); fail(); } catch(e) { fail(); }"); |
| v8::Script::Compile(source)->Run(); |
| CHECK(!v8::V8::IsExecutionTerminating()); |
| // Check we can run JS again after termination. |
| CHECK(v8::Script::Compile(v8::String::New("function f() { return true; }" |
| "f()"))->Run()->IsTrue()); |
| context.Dispose(); |
| } |
| |