internal static void AddMyObjectChanged(EventHandler <ObjectChangedEventArgs> callback,
ref EventHandler <ObjectChangedEventArgs> objectChanged,
object lockObjChangedEvent,
ref RegisteredWaitHandle regObjChangedWaitHandle,
ref AutoResetEvent objChangedEvent,
ref SafeCollabEvent safeObjChangedEvent,
WaitOrTimerCallback ObjectChangedCallback)
{
//
// Register a wait handle if one has not been registered already
//
lock (lockObjChangedEvent){
if (objectChanged == null)
{
objChangedEvent = new AutoResetEvent(false);
//
// Register callback with a wait handle
//
regObjChangedWaitHandle = ThreadPool.RegisterWaitForSingleObject(objChangedEvent, //Event that triggers the callback
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.MyObjectChanged;
pcer.pInstance = IntPtr.Zero;
//
// Register event with collab
//
int errorCode = UnsafeCollabNativeMethods.PeerCollabRegisterEvent(
objChangedEvent.SafeWaitHandle,
1,
ref pcer,
out 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);
}
}
objectChanged += callback;
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "AddObjectChanged() successful.");
}
internal static void CleanEventVars(ref RegisteredWaitHandle waitHandle,
ref SafeCollabEvent safeEvent,
ref AutoResetEvent firedEvent)
{
if (waitHandle != null)
{
waitHandle.Unregister(null);
waitHandle = null;
}
if ((safeEvent != null) && (!safeEvent.IsInvalid))
{
safeEvent.Dispose();
}
if (firedEvent != null)
{
firedEvent.Close();
firedEvent = null;
}
}
internal static void AddMyObjectChanged(EventHandler<ObjectChangedEventArgs> callback,
ref EventHandler<ObjectChangedEventArgs> objectChanged,
object lockObjChangedEvent,
ref RegisteredWaitHandle regObjChangedWaitHandle,
ref AutoResetEvent objChangedEvent,
ref SafeCollabEvent safeObjChangedEvent,
WaitOrTimerCallback ObjectChangedCallback)
{
//
// Register a wait handle if one has not been registered already
//
lock (lockObjChangedEvent){
if (objectChanged == null){
objChangedEvent = new AutoResetEvent(false);
//
// Register callback with a wait handle
//
regObjChangedWaitHandle = ThreadPool.RegisterWaitForSingleObject(objChangedEvent, //Event that triggers the callback
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.MyObjectChanged;
pcer.pInstance = IntPtr.Zero;
//
// Register event with collab
//
int errorCode = UnsafeCollabNativeMethods.PeerCollabRegisterEvent(
objChangedEvent.SafeWaitHandle,
1,
ref pcer,
out 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);
}
}
objectChanged += callback;
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "AddObjectChanged() successful.");
}
internal static void CleanEventVars(ref RegisteredWaitHandle waitHandle,
ref SafeCollabEvent safeEvent,
ref AutoResetEvent firedEvent)
{
if (waitHandle != null){
waitHandle.Unregister(null);
waitHandle = null;
}
if ((safeEvent != null) && (!safeEvent.IsInvalid)){
safeEvent.Dispose();
}
if (firedEvent != null){
firedEvent.Close();
firedEvent = null;
}
}
internal extern static int PeerCollabGetEventData(SafeCollabEvent hPeerEvent,
out SafeCollabData ppEventData);
internal extern static int PeerCollabRegisterEvent(SafeWaitHandle hEvent, UInt32 cEventRegistration,
ref PEER_COLLAB_EVENT_REGISTRATION pEventRegistrations,
out SafeCollabEvent phPeerEvent);
internal extern static int PeerCollabGetEventData(SafeCollabEvent hPeerEvent,
out SafeCollabData ppEventData);
internal extern static int PeerCollabRegisterEvent(SafeWaitHandle hEvent, UInt32 cEventRegistration,
ref PEER_COLLAB_EVENT_REGISTRATION pEventRegistrations,
out SafeCollabEvent phPeerEvent);
