internal static PeerObject ConvertPEER_OBJECTToPeerObject(PEER_OBJECT po)
{
byte[] data = null;
if (po.data.cbData != 0)
{
data = new byte[po.data.cbData];
Marshal.Copy(po.data.pbData, data, 0, (int)po.data.cbData);
}
return(new PeerObject(ConvertGUIDToGuid(po.guid), data, (PeerScope)po.dwPublicationScope));
}
public static void SetObject(PeerObject peerObject)
{
PeerCollaborationPermission.UnrestrictedPeerCollaborationPermission.Demand();
if (peerObject == null){
throw new ArgumentNullException("peerObject");
}
CollaborationHelperFunctions.Initialize();
if (Logging.P2PTraceSource.Switch.ShouldTrace(TraceEventType.Information)){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "SetObject() is called with the following info");
peerObject.TracePeerObject();
}
PEER_OBJECT po = new PEER_OBJECT();
int errorCode = 0;
//
// Create the native PEER_OBJECT struct
//
po.guid = CollaborationHelperFunctions.ConvertGuidToGUID(peerObject.Id);
po.dwPublicationScope = (uint)peerObject.PeerScope;
SafeCollabMemory data = null;
try{
if ((peerObject.Data != null) && (peerObject.Data.Length > 0)){
data = new SafeCollabMemory(peerObject.Data.Length);
po.data.pbData = data.DangerousGetHandle();
po.data.cbData = (UInt32)peerObject.Data.Length;
Marshal.Copy(peerObject.Data, 0, po.data.pbData, peerObject.Data.Length);
}
else{
po.data.pbData = IntPtr.Zero;
po.data.cbData = 0;
}
errorCode = UnsafeCollabNativeMethods.PeerCollabSetObject(ref po);
}
finally{
if (data != null) data.Dispose();
}
if (errorCode == UnsafeCollabReturnCodes.PEER_E_ALREADY_EXISTS){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabSetObject returned with errorcode {0}. Object already set.", errorCode);
throw new ArgumentException(SR.GetString(SR.Collab_ObjectSetFailed) + " " + SR.GetString(SR.Collab_ObjectExists));
}
else if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabSetObject returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_ObjectSetFailed), errorCode));
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Set Object successful.");
}
internal static PeerObject ConvertPEER_OBJECTToPeerObject(PEER_OBJECT po)
{
byte[] data = null;
if (po.data.cbData != 0){
data = new byte[po.data.cbData];
Marshal.Copy(po.data.pbData, data, 0, (int)po.data.cbData);
}
return new PeerObject(ConvertGUIDToGuid(po.guid), data, (PeerScope)po.dwPublicationScope);
}
internal extern static int PeerCollabSetObject(ref PEER_OBJECT pcObject);
internal extern static int PeerCollabSetObject(ref PEER_OBJECT pcObject);
internal override void ObjectChangedCallback(object state, bool timedOut)
{
SafeCollabData eventData = null;
int errorCode = 0;
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "ObjectChangedCallback() called.");
if (m_Disposed)
{
return;
}
while (true)
{
ObjectChangedEventArgs objChangedArgs = null;
//
// Get the event data for the fired event
//
try{
lock (LockObjChangedEvent){
if (m_safeObjChangedEvent.IsInvalid)
{
return;
}
errorCode = UnsafeCollabNativeMethods.PeerCollabGetEventData(m_safeObjChangedEvent,
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_GetObjectChangedDataFailed), errorCode);
}
PEER_COLLAB_EVENT_DATA ped = (PEER_COLLAB_EVENT_DATA)Marshal.PtrToStructure(eventData.DangerousGetHandle(),
typeof(PEER_COLLAB_EVENT_DATA));
if (ped.eventType == PeerCollabEventType.MyObjectChanged)
{
PEER_EVENT_OBJECT_CHANGED_DATA objData = ped.objectChangedData;
PEER_OBJECT po = (PEER_OBJECT)Marshal.PtrToStructure(objData.pObject, typeof(PEER_OBJECT));
PeerObject peerObject = CollaborationHelperFunctions.ConvertPEER_OBJECTToPeerObject(po);;
PeerEndPoint peerEndPoint = null;
if (objData.pEndPoint != IntPtr.Zero)
{
PEER_ENDPOINT pe = (PEER_ENDPOINT)Marshal.PtrToStructure(objData.pEndPoint, typeof(PEER_ENDPOINT));
peerEndPoint = CollaborationHelperFunctions.ConvertPEER_ENDPOINTToPeerEndPoint(pe);
}
objChangedArgs = new ObjectChangedEventArgs(peerEndPoint,
null,
objData.changeType,
peerObject);
}
}
finally{
if (eventData != null)
{
eventData.Dispose();
}
}
//
// Fire the callback with the marshalled event args data
//
if (objChangedArgs != null)
{
OnObjectChanged(objChangedArgs);
}
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Leaving ObjectChangedCallback().");
}
