//
// Converts Guid class to GUID structure that we can pass into native
//
internal static GUID ConvertGuidToGUID(Guid guid)
{
GUID newGuid = new GUID();
if (guid != null){
byte[] guidBytes = guid.ToByteArray();
string guidString = guid.ToString();
int startVal = 0;
int endVal = guidString.IndexOf('-');
newGuid.data1 = (uint)(Convert.ToUInt32(guidString.Substring(startVal, endVal - startVal), 16));
startVal = endVal + 1;
endVal = guidString.IndexOf('-', endVal + 1);
newGuid.data2 = (ushort)(Convert.ToUInt16(guidString.Substring(startVal, endVal - startVal), 16));
startVal = endVal + 1;
endVal = guidString.IndexOf('-', endVal + 1);
newGuid.data3 = (ushort)(Convert.ToUInt16(guidString.Substring(startVal, endVal - startVal), 16));
newGuid.data4 = guidBytes[8];
newGuid.data5 = guidBytes[9];
newGuid.data6 = guidBytes[10];
newGuid.data7 = guidBytes[11];
newGuid.data8 = guidBytes[12];
newGuid.data9 = guidBytes[13];
newGuid.data10 = guidBytes[14];
newGuid.data11 = guidBytes[15];
}
return newGuid;
}
//
// Converts native GUID structure to managed Guid class
//
internal static Guid ConvertGUIDToGuid(GUID guid)
{
byte[] bytes = new byte[8];
bytes[0] = guid.data4;
bytes[1] = guid.data5;
bytes[2] = guid.data6;
bytes[3] = guid.data7;
bytes[4] = guid.data8;
bytes[5] = guid.data9;
bytes[6] = guid.data10;
bytes[7] = guid.data11;
return new Guid((int)guid.data1, (short)guid.data2, (short)guid.data3, bytes);
}
internal extern static int PeerCollabGetApplicationRegistrationInfo(ref GUID pApplicationId,
PeerApplicationRegistrationType registrationType,
out SafeCollabData ppApplication);
internal extern static int PeerCollabDeleteObject(ref GUID pObjectId);
internal extern static int PeerCollabUnregisterApplication(ref GUID pApplicationId,
PeerApplicationRegistrationType appRegType);
private void AddObjectChangedEvent(EventHandler <ObjectChangedEventArgs> callback)
{
//
// Register a wait handle if one has not been registered already
//
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "AddObjectChanged() called.");
lock (LockObjChangedEvent){
if (m_objectChanged == null)
{
if (m_id.Equals(Guid.Empty))
{
throw (new PeerToPeerException(SR.GetString(SR.Collab_EmptyGuidError)));
}
m_objChangedEvent = new AutoResetEvent(false);
//
// Register callback with a wait handle
//
m_regObjChangedWaitHandle = ThreadPool.RegisterWaitForSingleObject(m_objChangedEvent, //Event that triggers the callback
new WaitOrTimerCallback(ObjectChangedCallback), //callback to be called
null, //state to be passed
-1, //Timeout - aplicable only for timers
false //call us everytime the event is set
);
PEER_COLLAB_EVENT_REGISTRATION pcer = new PEER_COLLAB_EVENT_REGISTRATION();
pcer.eventType = PeerCollabEventType.EndPointObjectChanged;
GUID guid = CollaborationHelperFunctions.ConvertGuidToGUID(m_id);
GCHandle guidHandle = GCHandle.Alloc(guid, GCHandleType.Pinned);
//
// Register event with collab
//
pcer.pInstance = guidHandle.AddrOfPinnedObject();
try{
int errorCode = UnsafeCollabNativeMethods.PeerCollabRegisterEvent(
m_objChangedEvent.SafeWaitHandle,
1,
ref pcer,
out m_safeObjChangedEvent);
if (errorCode != 0)
{
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabRegisterEvent returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_ObjectChangedRegFailed), errorCode);
}
}
finally{
if (guidHandle.IsAllocated)
{
guidHandle.Free();
}
}
}
m_objectChanged += callback;
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "AddObjectChanged() successful.");
}