const char *buf, int toWrite, int *errorCode);
static int		TcpSetOptionProc(void *instanceData,
			    Tcl_Interp *interp, const char *optionName,
			    const char *value);
static void		TcpThreadActionProc(void *instanceData, int action);
static void		TcpWatchProc(void *instanceData, int mask);
static int		WaitForConnect(TcpState *statePtr, int *errorCodePtr);
static void		WrapNotify(void *clientData, int mask);
static Tcl_FileProc	WrapNotify;

/*
 * This structure describes the channel type structure for TCP socket
 * based IO:
 */

static const Tcl_ChannelType tcpChannelType = {

	 * conditions.  Then it is the task of WrapNotify() above to untangle
	 * the meaning of these channel states and report the chan events as
	 * best it can.  We save a copy of the mask passed in to assist with
	 * that.
	 */

	statePtr->interest = mask;
        Tcl_CreateFileHandler(statePtr->fds.fd, mask|TCL_READABLE,
                (Tcl_FileProc *) WrapNotify, statePtr);
	Tcl_CreateFileHandler(statePtr->fds.fd, mask|TCL_READABLE,
		WrapNotify, statePtr);
    } else {
        Tcl_DeleteFileHandler(statePtr->fds.fd);
	Tcl_DeleteFileHandler(statePtr->fds.fd);
    }
}

/*
 * ----------------------------------------------------------------------
 *
 * TcpGetHandleProc --