mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2025-02-12 15:57:12 +01:00
4a6bfc086c
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.
60 lines
1.0 KiB
C++
60 lines
1.0 KiB
C++
//
|
|
// Mutex_WIN32.cpp
|
|
//
|
|
// Library: Foundation
|
|
// Package: Threading
|
|
// Module: Mutex
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#include "Poco/Mutex_WIN32.h"
|
|
#include "Poco/Timestamp.h"
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
MutexImpl::MutexImpl()
|
|
{
|
|
// the fct has a boolean return value under WInnNt/2000/XP but not on Win98
|
|
// the return only checks if the input address of &_cs was valid, so it is safe to omit it
|
|
InitializeCriticalSectionAndSpinCount(&_cs, 4000);
|
|
}
|
|
|
|
|
|
MutexImpl::~MutexImpl()
|
|
{
|
|
DeleteCriticalSection(&_cs);
|
|
}
|
|
|
|
|
|
bool MutexImpl::tryLockImpl(long milliseconds)
|
|
{
|
|
const int sleepMillis = 5;
|
|
Timestamp now;
|
|
Timestamp::TimeDiff diff(Timestamp::TimeDiff(milliseconds)*1000);
|
|
do
|
|
{
|
|
try
|
|
{
|
|
if (TryEnterCriticalSection(&_cs) == TRUE)
|
|
return true;
|
|
}
|
|
catch (...)
|
|
{
|
|
throw SystemException("cannot lock mutex");
|
|
}
|
|
Sleep(sleepMillis);
|
|
}
|
|
while (!now.isElapsed(diff));
|
|
return false;
|
|
}
|
|
|
|
|
|
} // namespace Poco
|