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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***************************************************************************/
#include "base_cpp/tlscont.h"
using namespace indigo;
_SIDManager _SIDManager::_instance;
OsLock _SIDManager::_lock;
IMPL_ERROR(_SIDManager, "TLS");
_SIDManager& _SIDManager::getInst(void)
{
return _instance;
}
_SIDManager::~_SIDManager(void)
{
qword* pId;
osTlsGetValue((void**)&pId, _tlsIdx);
delete pId;
osTlsFree(_tlsIdx);
}
void _SIDManager::setSessionId(qword id)
{
OsLocker locker(_lock);
if (!_allSIDs.find(id))
_allSIDs.insert(id);
qword* pId = _getID();
if (pId == NULL)
{
pId = new qword(id);
osTlsSetValue(_tlsIdx, (void*)pId);
}
else
*pId = id;
}
qword _SIDManager::allocSessionId(void)
{
OsLocker locker(_lock);
qword id;
if (_vacantSIDs.size() > 0)
id = _vacantSIDs.pop();
else
{
while (_allSIDs.find(_lastNewSID))
++_lastNewSID;
id = _lastNewSID;
_allSIDs.insert(id);
++_lastNewSID;
}
return id;
}
qword _SIDManager::getSessionId(void)
{
qword* pId = _getID();
qword id;
if (pId == NULL)
{
id = allocSessionId();
setSessionId(id);
}
else
id = *pId;
return id;
}
void _SIDManager::releaseSessionId(qword id)
{
OsLocker locker(_lock);
_vacantSIDs.push(id);
}
qword* _SIDManager::_getID(void) const
{
void* pId;
osTlsGetValue(&pId, _tlsIdx);
return (qword*)pId;
}
_SIDManager::_SIDManager(void) : _lastNewSID(0)
{
if (osTlsAlloc(&_tlsIdx) == 0)
throw Error("can't allocate thread local storage cell");
}
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