private void TailPinned(object sender, TailPinnedEventArgs e) { Debug.WriteLine($"Log {this.logFileBase}: tail pinned! Suggested that we advance base to {e.TargetSequenceNumber.Identifier()}"); }
void HandleTailPinned() { TailPinnedEventArgs args; SequenceNumber targetLsn; targetLsn = new SequenceNumber(this.notification.Lsn); args = new TailPinnedEventArgs(targetLsn); EventHandler<TailPinnedEventArgs> handler; handler = this.InternalTailPinned; if (handler != null) { try { handler(this, args); } #pragma warning suppress 56500 // This is a callback exception catch (Exception e) { try { int errorCode = Marshal.GetHRForException(e); UnsafeNativeMethods.LogTailAdvanceFailure(this.logStore.Handle, errorCode); } #pragma warning suppress 56500 // We will be terminating the process with any exception in this call catch (Exception exception) { // If LogTailAdvanceFailure fails, there's nothing we can do to recover. // If we keep executing, the log's tail will be pinned forever. // CLFS will never know that we have finished with its notification. DiagnosticUtility.InvokeFinalHandler(exception); } if (Fx.IsFatal(e)) throw; } } else { // User hasn't subscribed to TailPinnned. If RetryAppend is true, IO.Log will register for // notification and invoke CLFS policy to handle LogFull Condition. // IO.Log must report to CLFS that the log tail cannot be advanced. CLFS expects either // base to be advanced or report the failure else it will hang waiting for the outcome. // try { UnsafeNativeMethods.LogTailAdvanceFailure(this.logStore.Handle, 0); } #pragma warning suppress 56500 // We will be terminating the process with any exception in this call catch (Exception exception) { // If LogTailAdvanceFailure fails, there's nothing we can do to recover. // If we keep executing, the log's tail will be pinned forever. // CLFS will never know that we have finished with its notification. DiagnosticUtility.InvokeFinalHandler(exception); } } }
void HandleTailPinned() { TailPinnedEventArgs args; SequenceNumber targetLsn; targetLsn = new SequenceNumber(this.notification.Lsn); args = new TailPinnedEventArgs(targetLsn); EventHandler <TailPinnedEventArgs> handler; handler = this.InternalTailPinned; if (handler != null) { try { handler(this, args); } #pragma warning suppress 56500 // This is a callback exception catch (Exception e) { try { int errorCode = Marshal.GetHRForException(e); UnsafeNativeMethods.LogTailAdvanceFailure(this.logStore.Handle, errorCode); } #pragma warning suppress 56500 // We will be terminating the process with any exception in this call catch (Exception exception) { // If LogTailAdvanceFailure fails, there's nothing we can do to recover. // If we keep executing, the log's tail will be pinned forever. // CLFS will never know that we have finished with its notification. DiagnosticUtility.InvokeFinalHandler(exception); } if (Fx.IsFatal(e)) { throw; } } } else { // User hasn't subscribed to TailPinnned. If RetryAppend is true, IO.Log will register for // notification and invoke CLFS policy to handle LogFull Condition. // IO.Log must report to CLFS that the log tail cannot be advanced. CLFS expects either // base to be advanced or report the failure else it will hang waiting for the outcome. // try { UnsafeNativeMethods.LogTailAdvanceFailure(this.logStore.Handle, 0); } #pragma warning suppress 56500 // We will be terminating the process with any exception in this call catch (Exception exception) { // If LogTailAdvanceFailure fails, there's nothing we can do to recover. // If we keep executing, the log's tail will be pinned forever. // CLFS will never know that we have finished with its notification. DiagnosticUtility.InvokeFinalHandler(exception); } } }