2 writes to _pendingPingCallback
System.Web (2)
Hosting\ApplicationManager.cs (2)
693if (Interlocked.CompareExchange(ref _pendingPingCallback, callback, null) == null) { 710if (Interlocked.CompareExchange(ref _pendingPingCallback, null, callback) == callback) {
2 references to _pendingPingCallback
System.Web (2)
Hosting\ApplicationManager.cs (2)
689if (callback == null || _pendingPingCallback != null) 706IProcessPingCallback callback = _pendingPingCallback as IProcessPingCallback;