mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-16 03:12:43 +00:00
81 lines
1.2 KiB
C++
81 lines
1.2 KiB
C++
|
//
|
||
|
|
// Mutex_VX.h
|
||
|
|
//
|
||
|
|
// Library: Foundation
|
||
|
|
// Package: Threading
|
||
|
|
// Module: Mutex
|
||
|
|
//
|
||
|
|
// Definition of the MutexImpl and FastMutexImpl classes for VxWorks.
|
||
|
|
//
|
||
|
|
// Copyright (c) 2004-2011, Applied Informatics Software Engineering GmbH.
|
||
|
|
// and Contributors.
|
||
|
|
//
|
||
|
|
// SPDX-License-Identifier: BSL-1.0
|
||
|
|
//
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef Foundation_Mutex_VX_INCLUDED
|
||
|
|
#define Foundation_Mutex_VX_INCLUDED
|
||
|
|
|
||
|
|
|
||
|
|
#include "Poco/Foundation.h"
|
||
|
|
#include "Poco/Exception.h"
|
||
|
|
#include <semLib.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
|
||
|
|
namespace Poco {
|
||
|
|
|
||
|
|
|
||
|
|
class Foundation_API MutexImpl
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
MutexImpl();
|
||
|
|
MutexImpl(bool fast);
|
||
|
|
~MutexImpl();
|
||
|
|
void lockImpl();
|
||
|
|
bool tryLockImpl();
|
||
|
|
bool tryLockImpl(long milliseconds);
|
||
|
|
void unlockImpl();
|
||
|
|
|
||
|
|
private:
|
||
|
|
SEM_ID _sem;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
class Foundation_API FastMutexImpl: public MutexImpl
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
FastMutexImpl();
|
||
|
|
~FastMutexImpl();
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// inlines
|
||
|
|
//
|
||
|
|
inline void MutexImpl::lockImpl()
|
||
|
|
{
|
||
|
|
if (semTake(_sem, WAIT_FOREVER) != OK)
|
||
|
|
throw SystemException("cannot lock mutex");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
inline bool MutexImpl::tryLockImpl()
|
||
|
|
{
|
||
|
|
return semTake(_sem, NO_WAIT) == OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
inline void MutexImpl::unlockImpl()
|
||
|
|
{
|
||
|
|
if (semGive(_sem) != OK)
|
||
|
|
throw SystemException("cannot unlock mutex");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
} // namespace Poco
|
||
|
|
|
||
|
|
|
||
|
|
#endif // Foundation_Mutex_VX_INCLUDED
|