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SqMod/vendor/POCO/Foundation/src/NamedMutex_WIN32U.cpp
Sandu Liviu Catalin 4a6bfc086c Major plugin refactor and cleanup.
Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.
2021-01-30 08:51:39 +02:00

76 lines
1.3 KiB
C++

//
// NamedMutex_WIN32.cpp
//
// Library: Foundation
// Package: Processes
// Module: NamedMutex
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/NamedMutex_WIN32U.h"
#include "Poco/Exception.h"
#include "Poco/UnicodeConverter.h"
namespace Poco {
NamedMutexImpl::NamedMutexImpl(const std::string& name):
_name(name)
{
UnicodeConverter::toUTF16(_name, _uname);
_mutex = CreateMutexW(NULL, FALSE, _uname.c_str());
if (!_mutex)
throw SystemException("cannot create named mutex", _name);
}
NamedMutexImpl::~NamedMutexImpl()
{
CloseHandle(_mutex);
}
void NamedMutexImpl::lockImpl()
{
switch (WaitForSingleObject(_mutex, INFINITE))
{
case WAIT_OBJECT_0:
return;
case WAIT_ABANDONED:
throw SystemException("cannot lock named mutex (abadoned)", _name);
default:
throw SystemException("cannot lock named mutex", _name);
}
}
bool NamedMutexImpl::tryLockImpl()
{
switch (WaitForSingleObject(_mutex, 0))
{
case WAIT_OBJECT_0:
return true;
case WAIT_TIMEOUT:
return false;
case WAIT_ABANDONED:
throw SystemException("cannot lock named mutex (abadoned)", _name);
default:
throw SystemException("cannot lock named mutex", _name);
}
}
void NamedMutexImpl::unlockImpl()
{
ReleaseMutex(_mutex);
}
} // namespace Poco