mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 22:36:09 +03:00
75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
// Copyright (c) 2016 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.
|
|
|
|
#ifndef NET_QUIC_PLATFORM_IMPL_QUIC_MUTEX_IMPL_H_
|
|
#define NET_QUIC_PLATFORM_IMPL_QUIC_MUTEX_IMPL_H_
|
|
|
|
#include "base/macros.h"
|
|
#include "base/synchronization/lock.h"
|
|
#include "net/quic/platform/api/quic_export.h"
|
|
|
|
#ifndef EXCLUSIVE_LOCK_FUNCTION
|
|
#define EXCLUSIVE_LOCK_FUNCTION(...)
|
|
#endif
|
|
|
|
#ifndef UNLOCK_FUNCTION
|
|
#define UNLOCK_FUNCTION(...)
|
|
#endif
|
|
|
|
#ifndef SHARED_LOCK_FUNCTION
|
|
#define SHARED_LOCK_FUNCTION(...)
|
|
#endif
|
|
|
|
#ifndef ASSERT_SHARED_LOCK
|
|
#define ASSERT_SHARED_LOCK(...)
|
|
#endif
|
|
|
|
#ifndef LOCKABLE
|
|
#define LOCKABLE
|
|
#endif
|
|
|
|
#ifndef SCOPED_LOCKABLE
|
|
#define SCOPED_LOCKABLE
|
|
#endif
|
|
|
|
#ifndef GUARDED_BY
|
|
#define GUARDED_BY(x)
|
|
#endif
|
|
|
|
#ifndef SHARED_LOCKS_REQUIRED
|
|
#define SHARED_LOCKS_REQUIRED(...)
|
|
#endif
|
|
|
|
namespace net {
|
|
|
|
// A class wrapping a non-reentrant mutex.
|
|
class QUIC_EXPORT_PRIVATE QuicLockImpl {
|
|
public:
|
|
QuicLockImpl() = default;
|
|
|
|
// Block until lock_ is free, then acquire it exclusively.
|
|
void WriterLock() EXCLUSIVE_LOCK_FUNCTION();
|
|
|
|
// Release lock_. Caller must hold it exclusively.
|
|
void WriterUnlock() UNLOCK_FUNCTION();
|
|
|
|
// Block until lock_ is free or shared, then acquire a share of it.
|
|
void ReaderLock() SHARED_LOCK_FUNCTION();
|
|
|
|
// Release lock_. Caller could hold it in shared mode.
|
|
void ReaderUnlock() UNLOCK_FUNCTION();
|
|
|
|
// Not implemented.
|
|
void AssertReaderHeld() const ASSERT_SHARED_LOCK() {}
|
|
|
|
private:
|
|
base::Lock lock_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(QuicLockImpl);
|
|
};
|
|
|
|
} // namespace net
|
|
|
|
#endif // NET_QUIC_PLATFORM_IMPL_QUIC_MUTEX_IMPL_H_
|