internal override void PresenceChangedCallback(object state, bool timedOut)
{
SafeCollabData eventData = null;
int errorCode = 0;
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "PresenceChangedCallback() called.");
if (m_Disposed) return;
while (true)
{
PresenceChangedEventArgs presenceChangedArgs = null;
//
// Get the event data for the fired event
//
try{
lock (LockPresenceChangedEvent){
if (m_safePresenceChangedEvent.IsInvalid) return;
errorCode = UnsafeCollabNativeMethods.PeerCollabGetEventData(m_safePresenceChangedEvent,
out eventData);
}
if (errorCode == UnsafeCollabReturnCodes.PEER_S_NO_EVENT_DATA)
break;
else if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabGetEventData returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetPresenceChangedDataFailed), errorCode);
}
PEER_COLLAB_EVENT_DATA ped = (PEER_COLLAB_EVENT_DATA)Marshal.PtrToStructure(eventData.DangerousGetHandle(),
typeof(PEER_COLLAB_EVENT_DATA));
if (ped.eventType == PeerCollabEventType.MyPresenceChanged){
PEER_EVENT_PRESENCE_CHANGED_DATA presenceData = ped.presenceChangedData;
PeerPresenceInfo peerPresenceInfo = null;
if (presenceData.pPresenceInfo != IntPtr.Zero)
{
PEER_PRESENCE_INFO ppi = (PEER_PRESENCE_INFO)Marshal.PtrToStructure(presenceData.pPresenceInfo, typeof(PEER_PRESENCE_INFO));
peerPresenceInfo = new PeerPresenceInfo();
peerPresenceInfo.PresenceStatus = ppi.status;
peerPresenceInfo.DescriptiveText = ppi.descText;
}
PeerEndPoint peerEndPoint = null;
if (presenceData.pEndPoint != IntPtr.Zero){
PEER_ENDPOINT pe = (PEER_ENDPOINT)Marshal.PtrToStructure(presenceData.pEndPoint, typeof(PEER_ENDPOINT));
peerEndPoint = CollaborationHelperFunctions.ConvertPEER_ENDPOINTToPeerEndPoint(pe);
}
presenceChangedArgs = new PresenceChangedEventArgs(peerEndPoint,
null,
presenceData.changeType,
peerPresenceInfo);
}
}
finally{
if (eventData != null) eventData.Dispose();
}
//
// Fire the callback with the marshalled event args data
//
if(presenceChangedArgs!= null)
OnPresenceChanged(presenceChangedArgs);
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Leaving PresenceChangedCallback().");
}
static void PresenceChangedCallback(object state, bool timedOut)
{
SafeCollabData eventData = null;
int errorCode = 0;
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "PresenceChangedCallback() called.");
while (true)
{
PresenceChangedEventArgs presenceChangedArgs = null;
//
// Get the event data for the fired event
//
try{
lock (LockPresenceChangedEvent){
if (s_safePresenceChangedEvent.IsInvalid) return;
errorCode = UnsafeCollabNativeMethods.PeerCollabGetEventData(s_safePresenceChangedEvent,
out eventData);
}
if (errorCode == UnsafeCollabReturnCodes.PEER_S_NO_EVENT_DATA)
break;
else if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabGetEventData returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetPresenceChangedDataFailed), errorCode);
}
PEER_COLLAB_EVENT_DATA ped = (PEER_COLLAB_EVENT_DATA)Marshal.PtrToStructure(eventData.DangerousGetHandle(),
typeof(PEER_COLLAB_EVENT_DATA));
if (ped.eventType == PeerCollabEventType.MyPresenceChanged){
PEER_EVENT_PRESENCE_CHANGED_DATA presenceData = ped.presenceChangedData;
PeerPresenceInfo peerPresenceInfo = null;
if (presenceData.pPresenceInfo != IntPtr.Zero){
PEER_PRESENCE_INFO ppi = (PEER_PRESENCE_INFO)Marshal.PtrToStructure(presenceData.pPresenceInfo, typeof(PEER_PRESENCE_INFO));
peerPresenceInfo = new PeerPresenceInfo();
peerPresenceInfo.PresenceStatus = ppi.status;
peerPresenceInfo.DescriptiveText = ppi.descText;
}
if (presenceData.pEndPoint != IntPtr.Zero){
//
// This means its an endpoint on my contact which is not on the local machine
// so we dont care
//
return;
}
presenceChangedArgs = new PresenceChangedEventArgs( null,
null,
presenceData.changeType,
peerPresenceInfo);
}
}
finally{
if (eventData != null) eventData.Dispose();
}
//
// Fire the callback with the marshalled event args data
//
EventHandler<PresenceChangedEventArgs> handlerCopy = s_presenceChanged;
if ((presenceChangedArgs != null) && (handlerCopy != null)){
if (SynchronizingObject != null && SynchronizingObject.InvokeRequired)
SynchronizingObject.BeginInvoke(handlerCopy, new object[] { null, presenceChangedArgs });
else
handlerCopy(null, presenceChangedArgs);
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Fired the presence changed event callback.");
}
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Leaving PresenceChangedCallback().");
}
internal override void PresenceChangedCallback(object state, bool timedOut)
{
SafeCollabData eventData = null;
int errorCode = 0;
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "PresenceChangedCallback() called.");
if (m_Disposed)
{
return;
}
while (true)
{
PresenceChangedEventArgs presenceChangedArgs = null;
//
// Get the event data for the fired event
//
try{
lock (LockPresenceChangedEvent){
if (m_safePresenceChangedEvent.IsInvalid)
{
return;
}
errorCode = UnsafeCollabNativeMethods.PeerCollabGetEventData(m_safePresenceChangedEvent,
out eventData);
}
if (errorCode == UnsafeCollabReturnCodes.PEER_S_NO_EVENT_DATA)
{
break;
}
else if (errorCode != 0)
{
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabGetEventData returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetPresenceChangedDataFailed), errorCode);
}
PEER_COLLAB_EVENT_DATA ped = (PEER_COLLAB_EVENT_DATA)Marshal.PtrToStructure(eventData.DangerousGetHandle(),
typeof(PEER_COLLAB_EVENT_DATA));
if (ped.eventType == PeerCollabEventType.MyPresenceChanged)
{
PEER_EVENT_PRESENCE_CHANGED_DATA presenceData = ped.presenceChangedData;
PeerPresenceInfo peerPresenceInfo = null;
if (presenceData.pPresenceInfo != IntPtr.Zero)
{
PEER_PRESENCE_INFO ppi = (PEER_PRESENCE_INFO)Marshal.PtrToStructure(presenceData.pPresenceInfo, typeof(PEER_PRESENCE_INFO));
peerPresenceInfo = new PeerPresenceInfo();
peerPresenceInfo.PresenceStatus = ppi.status;
peerPresenceInfo.DescriptiveText = ppi.descText;
}
PeerEndPoint peerEndPoint = null;
if (presenceData.pEndPoint != IntPtr.Zero)
{
PEER_ENDPOINT pe = (PEER_ENDPOINT)Marshal.PtrToStructure(presenceData.pEndPoint, typeof(PEER_ENDPOINT));
peerEndPoint = CollaborationHelperFunctions.ConvertPEER_ENDPOINTToPeerEndPoint(pe);
}
presenceChangedArgs = new PresenceChangedEventArgs(peerEndPoint,
null,
presenceData.changeType,
peerPresenceInfo);
}
}
finally{
if (eventData != null)
{
eventData.Dispose();
}
}
//
// Fire the callback with the marshalled event args data
//
if (presenceChangedArgs != null)
{
OnPresenceChanged(presenceChangedArgs);
}
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Leaving PresenceChangedCallback().");
}