private void SetupPeer()
{
peerObject = new PeerObject()
{
Id = id,
PeerScope = PeerScope
};
}
private void SetupPeer()
{
peerObject = new PeerObject()
{
Id = id,
PeerScope = PeerScope
};
}
private void ClosePeer()
{
if (!PeerOpened)
{
return;
}
PeerNearMe.PeerNearMeChanged -= PeerNearMe_PeerNearMeChanged;
PeerCollaboration.SignOut(PeerScope);
peerObject.Dispose();
peerObject = null;
}
public static PeerObjectCollection GetLocalSetObjects()
{
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Entering GetLocalSetObjects.");
PeerCollaborationPermission.UnrestrictedPeerCollaborationPermission.Demand();
CollaborationHelperFunctions.Initialize();
PeerObjectCollection peerObjectColl = new PeerObjectCollection();
SafeCollabEnum handlePeerEnum = null;
UInt32 objectCount = 0;
int errorCode = 0;
//
// Enumerate through all the objects from native
//
try{
errorCode = UnsafeCollabNativeMethods.PeerCollabEnumObjects(IntPtr.Zero, IntPtr.Zero, out handlePeerEnum);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabEnumObjects returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalObjectsFailed), errorCode);
}
errorCode = UnsafeCollabNativeMethods.PeerGetItemCount(handlePeerEnum, ref objectCount);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerGetItemCount returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalObjectsFailed), errorCode);
}
if (objectCount == 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "No local PeerObjects found.");
return peerObjectColl;
}
unsafe{
SafeCollabData objectArray = null;
try{
errorCode = UnsafeCollabNativeMethods.PeerGetNextItem(handlePeerEnum, ref objectCount, out objectArray);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerGetNextItem returned with errorcode {0}", errorCode);
throw PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_GetLocalObjectsFailed), errorCode);
}
//
// Marshal each object from the array
//
IntPtr pPEER_OBJECT = objectArray.DangerousGetHandle();
IntPtr* pObjects = (IntPtr*)pPEER_OBJECT;
for (ulong i = 0; i < objectCount; i++){
PEER_OBJECT* pPeerObject = (PEER_OBJECT*)pObjects[i];
byte[] data = null;
if (pPeerObject->data.cbData != 0){
data = new byte[pPeerObject->data.cbData];
Marshal.Copy(pPeerObject->data.pbData, data, 0, (int)pPeerObject->data.cbData);
}
PeerObject peerObject = new PeerObject(CollaborationHelperFunctions.ConvertGUIDToGuid(pPeerObject->guid), data, (PeerScope)pPeerObject->dwPublicationScope);
peerObjectColl.Add(peerObject);
}
}
finally{
objectArray.Dispose();
}
}
}
finally{
handlePeerEnum.Dispose();
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Returning collection with {0} objects", peerObjectColl.Count);
return peerObjectColl;
}
public static void DeleteObject(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, "DeleteObject() is called with the following info");
peerObject.TracePeerObject();
}
GUID guid = CollaborationHelperFunctions.ConvertGuidToGUID(peerObject.Id);
int errorCode = UnsafeCollabNativeMethods.PeerCollabDeleteObject(ref guid);
if (errorCode != 0){
Logging.P2PTraceSource.TraceEvent(TraceEventType.Error, 0, "PeerCollabDeleteObject returned with errorcode {0}", errorCode);
throw (PeerToPeerException.CreateFromHr(SR.GetString(SR.Collab_ObjectDeleteFailed), errorCode));
}
Logging.P2PTraceSource.TraceEvent(TraceEventType.Information, 0, "Delete Object successful.");
}
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.");
}
void AddLog(string nickname, PeerObject peerObject)
{
AddLog(nickname, peerObject.Data, LogType.Received);
}
void AddLog(PeerContact peerContact, PeerObject peerObject)
{
AddLog(peerContact.Nickname, peerObject);
}
void AddLog(PeerNearMe peerNearMe, PeerObject peerObject)
{
AddLog(peerNearMe.Nickname, peerObject);
}
void AddLog(string nickname, PeerObject peerObject)
{
AddLog(nickname, peerObject.Data, LogType.Received);
}
void AddLog(PeerContact peerContact, PeerObject peerObject)
{
AddLog(peerContact.Nickname, peerObject);
}
void AddLog(PeerNearMe peerNearMe, PeerObject peerObject)
{
AddLog(peerNearMe.Nickname, peerObject);
}
private void ClosePeer()
{
if (!PeerOpened) return;
PeerNearMe.PeerNearMeChanged -= PeerNearMe_PeerNearMeChanged;
PeerCollaboration.SignOut(PeerScope);
peerObject.Dispose();
peerObject = null;
}
