blob: d33e21f18c9be55eea9163877ebe28cf5422a059 [file] [log] [blame]
// 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/base_export.h"
#include "base/synchronization/lock.h"
#include "base/threading/platform_thread.h"
namespace base {
// Real implementation of ThreadChecker, 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 ThreadChecker class to get the
// right version for your build configuration.
class BASE_EXPORT ThreadCheckerImpl {
bool CalledOnValidThread() const;
// Changes the thread that is checked for in CalledOnValidThread. This may
// be useful when an object may be created on one thread and then used
// exclusively on another thread.
void DetachFromThread();
void EnsureThreadIdAssigned() const;
#if defined(COBALT) || defined(OS_STARBOARD)
// Don't use a mutex since the number of mutexes is limited on some platforms.
mutable base::subtle::Atomic32 valid_thread_id_;
mutable base::Lock lock_;
// This is mutable so that CalledOnValidThread can set it.
// It's guarded by |lock_|.
mutable PlatformThreadId valid_thread_id_;
} // namespace base