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// Copyright (c) 2009, Google Inc.
// 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 "config.h"
#include "Threading.h"
#undef LOG
#include "base/message_loop.h"
#include "base/task.h"
namespace WTF {
struct NewThreadContext {
NewThreadContext(ThreadFunction entryPoint, void* data, const char* name)
: entryPoint(entryPoint)
, data(data)
, name(name)
{ }
ThreadFunction entryPoint;
void* data;
std::string name;
Mutex creationMutex;
};
static void* threadEntryPoint(void* contextData)
{
NewThreadContext* context = reinterpret_cast<NewThreadContext*>(contextData);
// Block until our creating thread has completed any extra setup work
{
MutexLocker locker(context->creationMutex);
}
// Run via Chrome's message loop
MessageLoop message_loop;
message_loop.set_thread_name(context->name);
message_loop.PostTask(FROM_HERE,
NewRunnableFunction(context->entryPoint, context->data));
message_loop.Run();
delete context;
return NULL;
}
ThreadIdentifier createThread(ThreadFunction entryPoint, void* data, const char* name)
{
NewThreadContext* context = new NewThreadContext(entryPoint, data, name);
// Prevent the thread body from executing until we've established the thread identifier
MutexLocker locker(context->creationMutex);
return createThreadInternal(threadEntryPoint, context, name);
}
#if PLATFORM(MAC) || PLATFORM(WIN)
// This function is deprecated but needs to be kept around for backward
// compatibility. Use the 3-argument version of createThread above.
ThreadIdentifier createThread(ThreadFunction entryPoint, void* data)
{
return createThread(entryPoint, data, 0);
}
#endif
} // namespace WTF
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