This prevents re-entry into JS during stack unwinding caused by TerminateExecution(). Review URL: http://codereview.chromium.org/2123005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
356 lines
13 KiB
C++
356 lines
13 KiB
C++
// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "v8.h"
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#include "platform.h"
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#include "cctest.h"
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v8::internal::Semaphore* semaphore = NULL;
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v8::Handle<v8::Value> Signal(const v8::Arguments& args) {
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semaphore->Signal();
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return v8::Undefined();
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}
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v8::Handle<v8::Value> TerminateCurrentThread(const v8::Arguments& args) {
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::V8::TerminateExecution();
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return v8::Undefined();
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}
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v8::Handle<v8::Value> Fail(const v8::Arguments& args) {
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CHECK(false);
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return v8::Undefined();
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}
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v8::Handle<v8::Value> Loop(const v8::Arguments& args) {
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Handle<v8::String> source =
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v8::String::New("try { doloop(); fail(); } catch(e) { fail(); }");
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v8::Handle<v8::Value> result = v8::Script::Compile(source)->Run();
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CHECK(result.IsEmpty());
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CHECK(v8::V8::IsExecutionTerminating());
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return v8::Undefined();
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}
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v8::Handle<v8::Value> DoLoop(const v8::Arguments& args) {
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v8::TryCatch try_catch;
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Script::Compile(v8::String::New("function f() {"
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" var term = true;"
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" try {"
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" while(true) {"
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" if (term) terminate();"
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" term = false;"
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" }"
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" fail();"
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" } catch(e) {"
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" fail();"
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" }"
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"}"
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"f()"))->Run();
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CHECK(try_catch.HasCaught());
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CHECK(try_catch.Exception()->IsNull());
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CHECK(try_catch.Message().IsEmpty());
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CHECK(!try_catch.CanContinue());
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CHECK(v8::V8::IsExecutionTerminating());
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return v8::Undefined();
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}
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v8::Handle<v8::Value> DoLoopNoCall(const v8::Arguments& args) {
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v8::TryCatch try_catch;
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Script::Compile(v8::String::New("var term = true;"
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"while(true) {"
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" if (term) terminate();"
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" term = false;"
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"}"))->Run();
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CHECK(try_catch.HasCaught());
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CHECK(try_catch.Exception()->IsNull());
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CHECK(try_catch.Message().IsEmpty());
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CHECK(!try_catch.CanContinue());
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CHECK(v8::V8::IsExecutionTerminating());
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return v8::Undefined();
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}
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v8::Handle<v8::ObjectTemplate> CreateGlobalTemplate(
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v8::InvocationCallback terminate,
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v8::InvocationCallback doloop) {
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v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
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global->Set(v8::String::New("terminate"),
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v8::FunctionTemplate::New(terminate));
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global->Set(v8::String::New("fail"), v8::FunctionTemplate::New(Fail));
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global->Set(v8::String::New("loop"), v8::FunctionTemplate::New(Loop));
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global->Set(v8::String::New("doloop"), v8::FunctionTemplate::New(doloop));
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return global;
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}
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// Test that a single thread of JavaScript execution can terminate
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// itself.
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TEST(TerminateOnlyV8ThreadFromThreadItself) {
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v8::HandleScope scope;
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v8::Handle<v8::ObjectTemplate> global =
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CreateGlobalTemplate(TerminateCurrentThread, DoLoop);
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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// Run a loop that will be infinite if thread termination does not work.
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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v8::Script::Compile(source)->Run();
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// Test that we can run the code again after thread termination.
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Script::Compile(source)->Run();
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context.Dispose();
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}
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// Test that a single thread of JavaScript execution can terminate
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// itself in a loop that performs no calls.
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TEST(TerminateOnlyV8ThreadFromThreadItselfNoLoop) {
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v8::HandleScope scope;
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v8::Handle<v8::ObjectTemplate> global =
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CreateGlobalTemplate(TerminateCurrentThread, DoLoopNoCall);
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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// Run a loop that will be infinite if thread termination does not work.
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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v8::Script::Compile(source)->Run();
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CHECK(!v8::V8::IsExecutionTerminating());
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// Test that we can run the code again after thread termination.
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v8::Script::Compile(source)->Run();
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context.Dispose();
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}
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class TerminatorThread : public v8::internal::Thread {
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void Run() {
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semaphore->Wait();
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::V8::TerminateExecution();
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}
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};
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// Test that a single thread of JavaScript execution can be terminated
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// from the side by another thread.
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TEST(TerminateOnlyV8ThreadFromOtherThread) {
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semaphore = v8::internal::OS::CreateSemaphore(0);
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TerminatorThread thread;
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thread.Start();
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v8::HandleScope scope;
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v8::Handle<v8::ObjectTemplate> global = CreateGlobalTemplate(Signal, DoLoop);
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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// Run a loop that will be infinite if thread termination does not work.
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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v8::Script::Compile(source)->Run();
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thread.Join();
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delete semaphore;
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semaphore = NULL;
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context.Dispose();
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}
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class LoopingThread : public v8::internal::Thread {
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public:
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void Run() {
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v8::Locker locker;
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v8::HandleScope scope;
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v8_thread_id_ = v8::V8::GetCurrentThreadId();
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v8::Handle<v8::ObjectTemplate> global =
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CreateGlobalTemplate(Signal, DoLoop);
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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// Run a loop that will be infinite if thread termination does not work.
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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v8::Script::Compile(source)->Run();
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context.Dispose();
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}
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int GetV8ThreadId() { return v8_thread_id_; }
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private:
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int v8_thread_id_;
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};
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// Test that multiple threads using V8 can be terminated from another
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// thread when using Lockers and preemption.
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TEST(TerminateMultipleV8Threads) {
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{
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v8::Locker locker;
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v8::V8::Initialize();
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v8::Locker::StartPreemption(1);
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semaphore = v8::internal::OS::CreateSemaphore(0);
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}
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LoopingThread thread1;
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thread1.Start();
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LoopingThread thread2;
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thread2.Start();
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// Wait until both threads have signaled the semaphore.
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semaphore->Wait();
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semaphore->Wait();
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{
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v8::Locker locker;
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v8::V8::TerminateExecution(thread1.GetV8ThreadId());
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v8::V8::TerminateExecution(thread2.GetV8ThreadId());
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}
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thread1.Join();
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thread2.Join();
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delete semaphore;
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semaphore = NULL;
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}
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int call_count = 0;
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v8::Handle<v8::Value> TerminateOrReturnObject(const v8::Arguments& args) {
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if (++call_count == 10) {
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::V8::TerminateExecution();
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return v8::Undefined();
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}
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v8::Local<v8::Object> result = v8::Object::New();
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result->Set(v8::String::New("x"), v8::Integer::New(42));
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return result;
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}
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v8::Handle<v8::Value> LoopGetProperty(const v8::Arguments& args) {
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v8::TryCatch try_catch;
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Script::Compile(v8::String::New("function f() {"
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" try {"
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" while(true) {"
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" terminate_or_return_object().x;"
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" }"
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" fail();"
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" } catch(e) {"
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" fail();"
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" }"
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"}"
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"f()"))->Run();
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CHECK(try_catch.HasCaught());
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CHECK(try_catch.Exception()->IsNull());
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CHECK(try_catch.Message().IsEmpty());
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CHECK(!try_catch.CanContinue());
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CHECK(v8::V8::IsExecutionTerminating());
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return v8::Undefined();
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}
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// Test that we correctly handle termination exceptions if they are
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// triggered by the creation of error objects in connection with ICs.
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TEST(TerminateLoadICException) {
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v8::HandleScope scope;
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v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
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global->Set(v8::String::New("terminate_or_return_object"),
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v8::FunctionTemplate::New(TerminateOrReturnObject));
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global->Set(v8::String::New("fail"), v8::FunctionTemplate::New(Fail));
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global->Set(v8::String::New("loop"),
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v8::FunctionTemplate::New(LoopGetProperty));
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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// Run a loop that will be infinite if thread termination does not work.
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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call_count = 0;
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v8::Script::Compile(source)->Run();
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// Test that we can run the code again after thread termination.
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CHECK(!v8::V8::IsExecutionTerminating());
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call_count = 0;
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v8::Script::Compile(source)->Run();
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context.Dispose();
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}
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v8::Handle<v8::Value> ReenterAfterTermination(const v8::Arguments& args) {
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v8::TryCatch try_catch;
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Script::Compile(v8::String::New("function f() {"
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" var term = true;"
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" try {"
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" while(true) {"
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" if (term) terminate();"
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" term = false;"
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" }"
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" fail();"
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" } catch(e) {"
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" fail();"
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" }"
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"}"
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"f()"))->Run();
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CHECK(try_catch.HasCaught());
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CHECK(try_catch.Exception()->IsNull());
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CHECK(try_catch.Message().IsEmpty());
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CHECK(!try_catch.CanContinue());
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CHECK(v8::V8::IsExecutionTerminating());
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v8::Script::Compile(v8::String::New("function f() { fail(); } f()"))->Run();
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return v8::Undefined();
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}
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// Test that reentry into V8 while the termination exception is still pending
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// (has not yet unwound the 0-level JS frame) does not crash.
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TEST(TerminateAndReenterFromThreadItself) {
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v8::HandleScope scope;
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v8::Handle<v8::ObjectTemplate> global =
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CreateGlobalTemplate(TerminateCurrentThread, ReenterAfterTermination);
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v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
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v8::Context::Scope context_scope(context);
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CHECK(!v8::V8::IsExecutionTerminating());
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v8::Handle<v8::String> source =
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v8::String::New("try { loop(); fail(); } catch(e) { fail(); }");
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v8::Script::Compile(source)->Run();
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CHECK(!v8::V8::IsExecutionTerminating());
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// Check we can run JS again after termination.
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CHECK(v8::Script::Compile(v8::String::New("function f() { return true; }"
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"f()"))->Run()->IsTrue());
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context.Dispose();
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}
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