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// 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) {
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) {
v8::Handle<v8::String> source =
v8::String::New("try { doloop(); fail(); } catch(e) { fail(); }");
v8::Script::Compile(source)->Run();
return v8::Undefined();
}
v8::Handle<v8::Value> DoLoop(const v8::Arguments& args) {
v8::TryCatch try_catch;
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());
return v8::Undefined();
}
v8::Handle<v8::ObjectTemplate> CreateGlobalTemplate(
v8::InvocationCallback terminate) {
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);
v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
v8::Context::Scope context_scope(context);
// 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.
v8::Script::Compile(source)->Run();
context.Dispose();
}
class TerminatorThread : public v8::internal::Thread {
void Run() {
semaphore->Wait();
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);
v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
v8::Context::Scope context_scope(context);
// 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);
v8::Persistent<v8::Context> context = v8::Context::New(NULL, global);
v8::Context::Scope context_scope(context);
// 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 V8 can be terminated from another
// thread when using Lockers and preemption.
TEST(TerminateMultipleV8Threads) {
{
v8::Locker locker;
v8::V8::Initialize();
v8::Locker::StartPreemption(1);
semaphore = v8::internal::OS::CreateSemaphore(0);
}
LoopingThread thread1;
thread1.Start();
LoopingThread thread2;
thread2.Start();
// Wait until both threads have signaled the semaphore.
semaphore->Wait();
semaphore->Wait();
{
v8::Locker locker;
v8::V8::TerminateExecution(thread1.GetV8ThreadId());
v8::V8::TerminateExecution(thread2.GetV8ThreadId());
}
thread1.Join();
thread2.Join();
delete semaphore;
semaphore = NULL;
}
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