chromium/third_party/angle/src/libANGLE/GlobalMutex.h

//
// Copyright 2023 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// GlobalMutex.h: Defines Global Mutex and utilities.

#ifndef LIBANGLE_GLOBAL_MUTEX_H_
#define LIBANGLE_GLOBAL_MUTEX_H_

#include "common/angleutils.h"

namespace egl
{
namespace priv
{
class GlobalMutex;
}  // namespace priv

class [[nodiscard]] ScopedGlobalMutexLock final : angle::NonCopyable
{ … };

// For Context protection where lock is optional. Works slower than ScopedGlobalMutexLock.
class [[nodiscard]] ScopedOptionalGlobalMutexLock final : angle::NonCopyable
{ … };

#if defined(ANGLE_PLATFORM_WINDOWS) && !defined(ANGLE_STATIC)
void AllocateGlobalMutex();
void DeallocateGlobalMutex();
#endif

}  // namespace egl

#endif  // LIBANGLE_GLOBAL_MUTEX_H_