/* * Copyright (c) 1987, 1988, 1989, 1990, 1991 Stanford University * Copyright (c) 1991 Silicon Graphics, Inc. * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that (i) the above copyright notices and this permission notice appear in * all copies of the software and related documentation, and (ii) the names of * Stanford and Silicon Graphics may not be used in any advertising or * publicity relating to the software without the specific, prior written * permission of Stanford and Silicon Graphics. * * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL STANFORD OR SILICON GRAPHICS BE LIABLE FOR * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ #ifndef dp_iohandler_h #define dp_iohandler_h #include <Dispatch/enter-scope.h> #include <OS/types.h> // Derived classes read input on a file number, write output on a file // number, handle an exception raised on a file number, or handle a // timer's expiration. #if defined(WIN32) || MAC typedef int pid_t; #endif class IOHandler { protected: IOHandler(); public: virtual ~IOHandler(); virtual int inputReady(int fd); virtual int outputReady(int fd); virtual int exceptionRaised(int fd); virtual void timerExpired(long sec, long usec); virtual void childStatus(pid_t pid, int status); }; #endif