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// Copyright (c) 2012 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 <memory>
#include "base/base_export.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/synchronization/lock.h"
#include "starboard/common/spin_lock.h"
namespace base {
// Real implementation of SequenceChecker for use in debug mode or for temporary
// use in release mode (e.g. to CHECK on a threading issue seen only in the
// wild).
// Note: You should almost always use the SequenceChecker class to get the right
// version for your build configuration.
class BASE_EXPORT SequenceCheckerImpl {
// Returns true if called in sequence with previous calls to this method and
// the constructor.
bool CalledOnValidSequence() const WARN_UNUSED_RESULT;
// Unbinds the checker from the currently associated sequence. The checker
// will be re-bound on the next call to CalledOnValidSequence().
void DetachFromSequence();
class Core;
#if defined(STARBOARD)
// Don't use a mutex since the number of mutexes is limited on some platforms.
mutable SbAtomic32 members_lock_ = starboard::kSpinLockStateReleased;
#else // defined(STARBOARD)
// Guards all variables below.
mutable Lock lock_;
#endif // defined(STARBOARD)
mutable std::unique_ptr<Core> core_;
} // namespace base