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// Copyright 2008, 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 "base/simple_thread.h"
#include "base/call_wrapper.h"
#include "base/waitable_event.h"
#include "base/logging.h"
#include "base/platform_thread.h"
#include "base/string_util.h"
namespace base {
void SimpleThread::Start() {
DCHECK(!HasBeenStarted()) << "Tried to Start a thread multiple times.";
bool success = PlatformThread::Create(options_.stack_size(), this, &thread_);
CHECK(success);
event_.Wait(); // Wait for the thread to complete initialization.
}
void SimpleThread::Join() {
DCHECK(HasBeenStarted()) << "Tried to Join a never-started thread.";
DCHECK(!HasBeenJoined()) << "Tried to Join a thread multiple times.";
PlatformThread::Join(thread_);
joined_ = true;
}
void SimpleThread::ThreadMain() {
tid_ = PlatformThread::CurrentId();
// Construct our full name of the form "name_prefix_/TID".
name_.push_back('/');
name_.append(IntToString(tid_));
PlatformThread::SetName(tid_, name_.c_str());
// We've initialized our new thread, signal that we're done to Start().
event_.Signal();
Run();
}
SimpleThread::~SimpleThread() {
DCHECK(HasBeenStarted()) << "SimpleThread was never started.";
DCHECK(HasBeenJoined()) << "SimpleThread destroyed without being Join()ed.";
}
void CallWrapperSimpleThread::Run() {
DCHECK(wrapper_) << "Tried to call Run without a wrapper (called twice?)";
wrapper_->Run();
wrapper_ = NULL;
}
CallWrapperSimpleThread::~CallWrapperSimpleThread() {
DCHECK(!wrapper_) << "CallWrapper was never released.";
}
} // namespace base
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