gvpe/lib/poll.h

#if defined(HAVE_SYS_POLL_H) && defined(HAVE_POLL)
# include <sys/poll.h>
#else


/*---------------------------------------------------------------------------*\
  $Id: poll.h,v 1.2 2003/10/14 19:14:28 pcg Exp $

  NAME

        poll - select(2)-based poll() emulation function for BSD systems.

  SYNOPSIS
        #include "poll.h"

        struct pollfd
        {
            int     fd;
            short   events;
            short   revents;
        }

        int poll (struct pollfd *pArray, unsigned long n_fds, int timeout)

  DESCRIPTION

        This file, and the accompanying "poll.c", implement the System V
        poll(2) system call for BSD systems (which typically do not provide
        poll()).  Poll() provides a method for multiplexing input and output
        on multiple open file descriptors; in traditional BSD systems, that
        capability is provided by select().  While the semantics of select()
        differ from those of poll(), poll() can be readily emulated in terms
        of select() -- which is how this function is implemented.

  REFERENCES
        Stevens, W. Richard. Unix Network Programming.  Prentice-Hall, 1990.

  NOTES
        1. This software requires an ANSI C compiler.

  LICENSE

        This software is released under the following license:

                Copyright (c) 1995-2002 Brian M. Clapper
                All rights reserved.

                Redistribution and use in source and binary forms are
                permitted provided that: (1) source distributions retain
                this entire copyright notice and comment; (2) modifications
                made to the software are prominently mentioned, and a copy
                of the original software (or a pointer to its location) are
                included; and (3) distributions including binaries display
                the following acknowledgement: "This product includes
                software developed by Brian M. Clapper <bmc@clapper.org>"
                in the documentation or other materials provided with the
                distribution. The name of the author may not be used to
                endorse or promote products derived from this software
                without specific prior written permission.

                THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS
                OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE
                IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
                PARTICULAR PURPOSE.

        Effectively, this means you can do what you want with the software
        except remove this notice or take advantage of the author's name.
        If you modify the software and redistribute your modified version,
        you must indicate that your version is a modification of the
        original, and you must provide either a pointer to or a copy of the
        original.
\*---------------------------------------------------------------------------*/

#ifndef _POLL_EMUL_H_
#define _POLL_EMUL_H_

#define POLLIN          0x01
#define POLLPRI         0x02
#define POLLOUT         0x04
#define POLLERR         0x08
#define POLLHUP         0x10
#define POLLNVAL        0x20

struct pollfd
{
    int     fd;
    short   events;
    short   revents;
};

#ifdef __cplusplus
extern "C"
{
#endif

#if (__STDC__ > 0) || defined(__cplusplus)
extern int poll (struct pollfd *pArray, unsigned long n_fds, int timeout);
#else
extern int poll();
#endif

#ifdef __cplusplus
}
#endif

#endif

#endif /* _POLL_EMUL_H_ */
Revision:	1.3
Committed:	Sat Jan 17 01:18:36 2004 UTC (22 years, 10 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.2:	+1 -1 lines
State:	*FILE REMOVED*
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.2	#if defined(HAVE_SYS_POLL_H) && defined(HAVE_POLL)
2			# include <sys/poll.h>
3			#else
4
5
6	pcg	1.1	/---------------------------------------------------------------------------\
7	pcg	1.3	$Id: poll.h,v 1.2 2003/10/14 19:14:28 pcg Exp $
8	pcg	1.1
9			NAME
10
11			poll - select(2)-based poll() emulation function for BSD systems.
12
13			SYNOPSIS
14			#include "poll.h"
15
16			struct pollfd
17			{
18			int fd;
19			short events;
20			short revents;
21			}
22
23			int poll (struct pollfd *pArray, unsigned long n_fds, int timeout)
24
25			DESCRIPTION
26
27			This file, and the accompanying "poll.c", implement the System V
28			poll(2) system call for BSD systems (which typically do not provide
29			poll()). Poll() provides a method for multiplexing input and output
30			on multiple open file descriptors; in traditional BSD systems, that
31			capability is provided by select(). While the semantics of select()
32			differ from those of poll(), poll() can be readily emulated in terms
33			of select() -- which is how this function is implemented.
34
35			REFERENCES
36			Stevens, W. Richard. Unix Network Programming. Prentice-Hall, 1990.
37
38			NOTES
39			1. This software requires an ANSI C compiler.
40
41			LICENSE
42
43			This software is released under the following license:
44
45			Copyright (c) 1995-2002 Brian M. Clapper
46			All rights reserved.
47
48			Redistribution and use in source and binary forms are
49			permitted provided that: (1) source distributions retain
50			this entire copyright notice and comment; (2) modifications
51			made to the software are prominently mentioned, and a copy
52			of the original software (or a pointer to its location) are
53			included; and (3) distributions including binaries display
54			the following acknowledgement: "This product includes
55			software developed by Brian M. Clapper <bmc@clapper.org>"
56			in the documentation or other materials provided with the
57			distribution. The name of the author may not be used to
58			endorse or promote products derived from this software
59			without specific prior written permission.
60
61			THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS
62			OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE
63			IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
64			PARTICULAR PURPOSE.
65
66			Effectively, this means you can do what you want with the software
67			except remove this notice or take advantage of the author's name.
68			If you modify the software and redistribute your modified version,
69			you must indicate that your version is a modification of the
70			original, and you must provide either a pointer to or a copy of the
71			original.
72			\---------------------------------------------------------------------------/
73
74			#ifndef _POLL_EMUL_H_
75			#define _POLL_EMUL_H_
76
77			#define POLLIN 0x01
78			#define POLLPRI 0x02
79			#define POLLOUT 0x04
80			#define POLLERR 0x08
81			#define POLLHUP 0x10
82			#define POLLNVAL 0x20
83
84			struct pollfd
85			{
86			int fd;
87			short events;
88			short revents;
89			};
90
91			#ifdef __cplusplus
92			extern "C"
93			{
94			#endif
95
96			#if (__STDC__ > 0) \|\| defined(__cplusplus)
97			extern int poll (struct pollfd *pArray, unsigned long n_fds, int timeout);
98			#else
99			extern int poll();
100			#endif
101
102			#ifdef __cplusplus
103			}
104			#endif
105
106			#endif
107
108			#endif /* _POLL_EMUL_H_ */