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/* ****************************************************************************
* eID Middleware Project.
* Copyright (C) 2008-2009 FedICT.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 3.0 as published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, see
* http://www.gnu.org/licenses/.
**************************************************************************** */
#include "ReadersInfo.h"
namespace eIDMW
{
CReadersInfo::CReadersInfo()
{
bFirstTime = true;
m_ulReaderCount = 0;
}
unsigned long CReadersInfo::ReaderCount()
{
return m_ulReaderCount;
}
std::string CReadersInfo::ReaderName(unsigned long ulIndex)
{
if (ulIndex >= m_ulReaderCount)
throw CMWEXCEPTION(EIDMW_ERR_PARAM_RANGE);
return m_tInfos[ulIndex].csReader;
}
bool CReadersInfo::CheckReaderEvents(unsigned long ulTimeout,
unsigned long ulIndex)
{
bool bChanged = false;
if (bFirstTime)
{
m_poPCSC->GetStatusChange(0, m_tInfos, m_ulReaderCount);
bFirstTime = false;
}
wait_again:
if (ulIndex == ALL_READERS)
{
bChanged = m_poPCSC->GetStatusChange(ulTimeout, m_tInfos, m_ulReaderCount);
}
else
{
if (ulIndex >= m_ulReaderCount)
throw CMWEXCEPTION(EIDMW_ERR_PARAM_RANGE);
bChanged = m_poPCSC->GetStatusChange(ulTimeout, &m_tInfos[ulIndex], 1);
}
// Extra safety: if nothing changed and we should wait forever
// (for a change), the we go waiting again
if (!bChanged && (ulTimeout == TIMEOUT_INFINITE))
goto wait_again;
return bChanged;
}
bool CReadersInfo::ReaderStateChanged(unsigned long ulIndex)
{
if (ulIndex >= m_ulReaderCount)
throw CMWEXCEPTION(EIDMW_ERR_PARAM_RANGE);
return 0 != (m_tInfos[ulIndex].ulEventState & EIDMW_STATE_CHANGED);
}
bool CReadersInfo::CardPresent(unsigned long ulIndex)
{
if (bFirstTime)
{
m_poPCSC->GetStatusChange(0, m_tInfos, m_ulReaderCount);
bFirstTime = false;
}
if (ulIndex >= m_ulReaderCount)
throw CMWEXCEPTION(EIDMW_ERR_PARAM_RANGE);
return 0 != (m_tInfos[ulIndex].ulEventState & EIDMW_STATE_PRESENT);
}
/** Constructor */
CReadersInfo::CReadersInfo(CPCSC *poPCSC, const CByteArray & oReaders)
{
m_poPCSC = poPCSC;
bFirstTime = true;
m_ulReaderCount = 0;
//Parse the string reader-list into the array "m_tcsReaders"
const char *csReaders = (const char *) oReaders.GetBytes();
for (size_t i = 0;
csReaders != NULL && csReaders[0] != '\0' && i < MAX_READERS;
i++, m_ulReaderCount++)
{
m_tInfos[m_ulReaderCount].csReader = csReaders;
m_tInfos[m_ulReaderCount].ulCurrentState = 0;
m_tInfos[m_ulReaderCount].ulEventState = 0;
csReaders += m_tInfos[m_ulReaderCount].csReader.length() + 1;
}
}
}
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