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/****************************************************************************
* Copyright (C) 2009-2015 EPAM Systems
*
* This file is part of Indigo toolkit.
*
* This file may be distributed and/or modified under the terms of the
* GNU General Public License version 3 as published by the Free Software
* Foundation and appearing in the file LICENSE.GPL included in the
* packaging of this file.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
***************************************************************************/
#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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