shaka-packager/base/threading/thread_checker_impl.cc

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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/threading/thread_checker_impl.h"
namespace base {
ThreadCheckerImpl::ThreadCheckerImpl()
: valid_thread_id_(kInvalidThreadId) {
EnsureThreadIdAssigned();
}
ThreadCheckerImpl::~ThreadCheckerImpl() {}
bool ThreadCheckerImpl::CalledOnValidThread() const {
EnsureThreadIdAssigned();
AutoLock auto_lock(lock_);
return valid_thread_id_ == PlatformThread::CurrentId();
}
void ThreadCheckerImpl::DetachFromThread() {
AutoLock auto_lock(lock_);
valid_thread_id_ = kInvalidThreadId;
}
void ThreadCheckerImpl::EnsureThreadIdAssigned() const {
AutoLock auto_lock(lock_);
if (valid_thread_id_ != kInvalidThreadId)
return;
valid_thread_id_ = PlatformThread::CurrentId();
}
} // namespace base