/usr/include/Dispatch/iocallback.h is in ivtools-dev 1.2.11a1-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | /*
* 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_iocallback_h
#define dp_iocallback_h
/*
* IOCallback allows a member function to be used as an IO handler
* instead of requiring derivation of a subclass.
*/
#include <Dispatch/iohandler.h>
#if defined(__STDC__) || defined(__ANSI_CPP__)
#define __IOCallback(T) T##_IOCallback
#define IOCallback(T) __IOCallback(T)
#define __IOReady(T) T##_IOReady
#define IOReady(T) __IOReady(T)
#define __IOTimer(T) T##_IOTimer
#define IOTimer(T) __IOTimer(T)
#else
#define __IOCallback(T) T/**/_IOCallback
#define IOCallback(T) __IOCallback(T)
#define __IOReady(T) T/**/_IOReady
#define IOReady(T) __IOReady(T)
#define __IOTimer(T) T/**/_IOTimer
#define IOTimer(T) __IOTimer(T)
#endif
#define declareIOCallback(T) \
typedef int (T::*IOReady(T))(int fd); \
typedef void (T::*IOTimer(T))(long sec, long usec); \
class IOCallback(T) : public IOHandler { \
public: \
IOCallback(T)( \
T*, IOReady(T) in, IOReady(T) out = nil, IOReady(T) ex = nil \
); \
IOCallback(T)( \
T*, IOTimer(T), \
IOReady(T) in = nil, IOReady(T) out = nil, IOReady(T) ex = nil \
); \
\
virtual int inputReady(int fd); \
virtual int outputReady(int fd); \
virtual int exceptionRaised(int fd); \
virtual void timerExpired(long sec, long usec); \
private: \
T* _obj; \
IOReady(T) _input; \
IOReady(T) _output; \
IOReady(T) _except; \
IOTimer(T) _timer; \
};
#define implementIOCallback(T) \
IOCallback(T)::IOCallback(T)( \
T* obj, IOReady(T) in, IOReady(T) out, IOReady(T) ex \
) { \
_obj = obj; _timer = nil; \
_input = in; _output = out; _except = ex; \
} \
\
IOCallback(T)::IOCallback(T)( \
T* obj, IOTimer(T) t, IOReady(T) in, IOReady(T) out, IOReady(T) ex \
) { \
_obj = obj; _timer = t; \
_input = in; _output = out; _except = ex; \
} \
\
int IOCallback(T)::inputReady(int fd) { return (_obj->*_input)(fd); } \
int IOCallback(T)::outputReady(int fd) { return (_obj->*_output)(fd); } \
int IOCallback(T)::exceptionRaised(int fd) { return (_obj->*_except)(fd); } \
void IOCallback(T)::timerExpired(long s, long u) { (_obj->*_timer)(s, u); }
#endif
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