mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-04 15:40:49 +00:00
60 lines
1009 B
C++
60 lines
1009 B
C++
//
|
|
// RWLock_WIN32.h
|
|
//
|
|
// $Id: //poco/1.4/Foundation/include/Poco/RWLock_WIN32.h#1 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Threading
|
|
// Module: RWLock
|
|
//
|
|
// Definition of the RWLockImpl class for WIN32.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_RWLock_WIN32_INCLUDED
|
|
#define Foundation_RWLock_WIN32_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/Exception.h"
|
|
#include "Poco/UnWindows.h"
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API RWLockImpl
|
|
{
|
|
protected:
|
|
RWLockImpl();
|
|
~RWLockImpl();
|
|
void readLockImpl();
|
|
bool tryReadLockImpl();
|
|
void writeLockImpl();
|
|
bool tryWriteLockImpl();
|
|
void unlockImpl();
|
|
|
|
private:
|
|
void addWriter();
|
|
void removeWriter();
|
|
DWORD tryReadLockOnce();
|
|
|
|
HANDLE _mutex;
|
|
HANDLE _readEvent;
|
|
HANDLE _writeEvent;
|
|
unsigned _readers;
|
|
unsigned _writersWaiting;
|
|
unsigned _writers;
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_RWLock_WIN32_INCLUDED
|