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/****************************************************************************
* *
* PrimeSense Sensor 5.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of PrimeSense Sensor. *
* *
* PrimeSense Sensor is free software: you can redistribute it and/or modify*
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* PrimeSense Sensor 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 PrimeSense Sensor. If not, see <http://www.gnu.org/licenses/>.*
* *
****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnSensorsManager.h"
#include "XnSensorClientServer.h"
//---------------------------------------------------------------------------
// Defines
//---------------------------------------------------------------------------
#define XN_SENSOR_DEFAULT_SERVER_WAIT_FOR_CLIENT_TIME 10000
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XnSensorsManager::XnSensorsManager(const XnChar* strGlobalConfigFile) :
m_noClientTimeout(XN_MODULE_PROPERTY_SERVER_NO_CLIENTS_TIMEOUT, XN_SENSOR_DEFAULT_SERVER_WAIT_FOR_CLIENT_TIME),
m_startNewLog(XN_MODULE_PROPERTY_SERVER_START_NEW_LOG_FILE),
m_hLock(NULL)
{
m_noClientTimeout.UpdateSetCallbackToDefault();
m_startNewLog.UpdateSetCallback(StartNewLogCallback, this);
strcpy(m_strGlobalConfigFile, strGlobalConfigFile);
}
XnSensorsManager::~XnSensorsManager()
{
Free();
}
XnStatus XnSensorsManager::Init()
{
XnStatus nRetVal = XN_STATUS_OK;
nRetVal = xnOSCreateCriticalSection(&m_hLock);
XN_IS_STATUS_OK(nRetVal);
// read default timeout from file
nRetVal = m_noClientTimeout.ReadValueFromFile(m_strGlobalConfigFile, XN_SENSOR_SERVER_CONFIG_FILE_SECTION);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
void XnSensorsManager::Free()
{
// close all sensors
while (m_sensors.begin() != m_sensors.end())
{
ReferencedSensor& sensor = m_sensors.begin().Value();
XN_DELETE(sensor.pInvoker);
}
if (m_hLock != NULL)
{
xnOSCloseCriticalSection(&m_hLock);
m_hLock = NULL;
}
}
XnStatus XnSensorsManager::GetSensor(const XnChar* strDevicePath, XnServerSensorInvoker** ppInvoker)
{
XnStatus nRetVal = XN_STATUS_OK;
// check if the sensor is already open
XnAutoCSLocker locker(m_hLock);
ReferencedSensor* pSensor;
nRetVal = m_sensors.Get(strDevicePath, pSensor);
if (nRetVal == XN_STATUS_NO_MATCH)
{
// not open. open it now
xnLogInfo(XN_MASK_SENSOR_SERVER, "Opening sensor '%s'...", strDevicePath);
ReferencedSensor sensor;
sensor.nRefCount = 0;
XN_VALIDATE_NEW(sensor.pInvoker, XnServerSensorInvoker);
XnProperty* aAdditionalProps[] = { &m_noClientTimeout, &m_startNewLog };
nRetVal = sensor.pInvoker->Init(strDevicePath, m_strGlobalConfigFile, sizeof(aAdditionalProps)/sizeof(XnProperty*), aAdditionalProps);
XN_IS_STATUS_OK(nRetVal);
// add it to map
nRetVal = m_sensors.Set(sensor.pInvoker->GetDevicePath(), sensor);
XN_IS_STATUS_OK(nRetVal);
// and take a reference to it
nRetVal = m_sensors.Get(sensor.pInvoker->GetDevicePath(), pSensor);
XN_IS_STATUS_OK(nRetVal);
}
++pSensor->nRefCount;
xnLogVerbose(XN_MASK_SENSOR_SERVER, "Sensor '%s' now has %u sessions", pSensor->pInvoker->GetDevicePath(), pSensor->nRefCount);
*ppInvoker = pSensor->pInvoker;
return (XN_STATUS_OK);
}
void XnSensorsManager::ReleaseSensor(XnServerSensorInvoker* pInvoker)
{
XnAutoCSLocker locker(m_hLock);
ReferencedSensor* pSensor;
XnStatus nRetVal = m_sensors.Get(pInvoker->GetDevicePath(), pSensor);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_SENSOR_SERVER, "Trying to release a sensor that is not in the map!");
return;
}
--pSensor->nRefCount;
xnLogVerbose(XN_MASK_SENSOR_SERVER, "Sensor '%s' now has %u sessions", pInvoker->GetDevicePath(), pSensor->nRefCount);
if (pSensor->nRefCount == 0)
{
// store current time. Then, in CleanUp() if timeout passed, sensor will be closed
xnOSGetTimeStamp(&pSensor->nNoClientsTime);
// do some clean-up (so that next client will behave as if it started the server)
// This is a bit ugly, but we need to manually set back to default DEVICE properties
// (we know there aren't any streams and clients, but the Device module always remains)
nRetVal = pSensor->pInvoker->SetIntProperty(XN_MODULE_NAME_DEVICE, XN_MODULE_PROPERTY_FRAME_SYNC, (XnUInt64)FALSE);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_SENSOR_SERVER, "Failed resetting FrameSync: %s", xnGetStatusString(nRetVal));
}
nRetVal = pSensor->pInvoker->ConfigureModuleFromGlobalFile(XN_MODULE_NAME_DEVICE);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_SENSOR_SERVER, "Failed configuring device from global config file: %s", xnGetStatusString(nRetVal));
}
}
}
void XnSensorsManager::CleanUp()
{
// go over sensors list. each sensor that is not open by any session, and timeout has passed should
// be closed and removed
XnAutoCSLocker locker(m_hLock);
XnUInt64 nNow;
xnOSGetTimeStamp(&nNow);
XnSensorsHash::Iterator it = m_sensors.begin();
while (it != m_sensors.end())
{
XnSensorsHash::Iterator curr = it;
++it;
ReferencedSensor& sensor = curr.Value();
if (sensor.nRefCount == 0 && (nNow - sensor.nNoClientsTime) > m_noClientTimeout.GetValue())
{
xnLogInfo(XN_MASK_SENSOR_SERVER, "No session holding sensor '%s' for %u ms. Shutting down...", curr.Key(), m_noClientTimeout.GetValue());
XN_DELETE(sensor.pInvoker);
m_sensors.Remove(curr);
}
}
}
XnStatus XN_CALLBACK_TYPE XnSensorsManager::StartNewLogCallback(XnIntProperty* /*pSender*/, XnUInt64 /*nValue*/, void* /*pCookie*/)
{
xnLogVerbose(XN_MASK_SENSOR_SERVER, "Closing current log file...");
return xnLogStartNewFile();
}
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