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// 
// RWLock_VX.cpp 
// 
// Library: Foundation 
// Package: Threading 
// Module:  RWLock 
// 
// Copyright (c) 2004-2011, Applied Informatics Software Engineering GmbH. 
// and Contributors. 
// 
// SPDX-License-Identifier:	BSL-1.0 
// 
 
 
#include "Poco/RWLock_VX.h" 
#include <cstring> 
 
 
namespace Poco { 
 
 
RWLockImpl::RWLockImpl() 
{ 
#if defined(POCO_VXWORKS) 
	// This workaround is for VxWorks 5.x where 
	// pthread_mutex_init() won't properly initialize the mutex 
	// resulting in a subsequent freeze in pthread_mutex_destroy() 
	// if the mutex has never been used. 
	std::memset(&_mutex, 0, sizeof(_mutex)); 
#endif 
	pthread_mutexattr_t attr; 
	pthread_mutexattr_init(&attr); 
	if (pthread_mutex_init(&_mutex, &attr)) 
	{ 
		pthread_mutexattr_destroy(&attr); 
		throw SystemException("cannot create mutex"); 
	} 
	pthread_mutexattr_destroy(&attr); 
} 
 
 
RWLockImpl::~RWLockImpl() 
{ 
	pthread_mutex_destroy(&_mutex); 
} 
 
 
} // namespace Poco