/* A notification event already queued. No point in another. */
	    continue;
	}

	handleInfoPtr = FindConsoleInfo(chanInfoPtr);
	/* Pointer is safe to access as we are holding gConsoleLock */

	if (handleInfoPtr != NULL) {
	    AcquireSRWLockShared(&handleInfoPtr->lock);
	    /* Rememebr channel is read or write, never both */
	    if (chanInfoPtr->watchMask & TCL_READABLE) {
		if (RingBufferLength(&handleInfoPtr->buffer) > 0
		    || handleInfoPtr->lastError != ERROR_SUCCESS) {
		    needEvent = 1; /* Input data available or error/EOF */
		}
	    } else if (chanInfoPtr->watchMask & TCL_WRITABLE) {
		if (RingBufferHasFreeSpace(&handleInfoPtr->buffer)) {
		    needEvent = 1; /* Output space available */
		}
	    }
	    ReleaseSRWLockShared(&handleInfoPtr->lock);
	if (handleInfoPtr == NULL) {
	    /* Stale event */
	    continue;
	}

	needEvent = 0;
	AcquireSRWLockShared(&handleInfoPtr->lock);
	/* Rememeber channel is read or write, never both */
	if (chanInfoPtr->watchMask & TCL_READABLE) {
	    if (RingBufferLength(&handleInfoPtr->buffer) > 0
		|| handleInfoPtr->lastError != ERROR_SUCCESS) {
		needEvent = 1; /* Input data available or error/EOF */
	    }
	    /*
	     * TCL_READABLE watch means someone is looking out for data being
	     * available, let reader thread know. Note channel need not be
	     * ASYNC! (Bug [baa51423c2])
	     */
	    handleInfoPtr->flags |= CONSOLE_DATA_AWAITED;
	    WakeConditionVariable(&handleInfoPtr->consoleThreadCV);
	}
	else if (chanInfoPtr->watchMask & TCL_WRITABLE) {
	    if (RingBufferHasFreeSpace(&handleInfoPtr->buffer)) {
		needEvent = 1; /* Output space available */
	    }
	}
	ReleaseSRWLockShared(&handleInfoPtr->lock);
	}

	if (needEvent) {
	    ConsoleEvent *evPtr = (ConsoleEvent *)Tcl_Alloc(sizeof(ConsoleEvent));

	    /* See note above loop why this can be accessed without locks */
	    chanInfoPtr->flags |= CONSOLE_EVENT_QUEUED;
	    chanInfoPtr->numRefs += 1; /* So it does not go away while event