blob: 8b05ece2625ee8438fc43985798b6a5e85cf773c [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
Willy Tarreau2dd0d472006-06-29 17:53:05 +02002 include/common/epoll.h
Willy Tarreaubaaee002006-06-26 02:48:02 +02003 epoll definitions for older libc.
4
5 Copyright (C) 2000-2006 Willy Tarreau - w@1wt.eu
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation, version 2.1
10 exclusively.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with this library; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20*/
21
22/*
23 * Those constants were found both in glibc and in the Linux kernel.
24 * They are provided here because the epoll() syscall is featured in
25 * some kernels but in not often included in the glibc, so it needs
26 * just a basic definition.
27 */
28
Willy Tarreau2dd0d472006-06-29 17:53:05 +020029#ifndef _COMMON_EPOLL_H
30#define _COMMON_EPOLL_H
Willy Tarreaubaaee002006-06-26 02:48:02 +020031
Willy Tarreau014b4fe2006-10-15 22:57:13 +020032#include <sys/types.h>
Willy Tarreaue3ba5f02006-06-29 18:54:54 +020033#include <linux/unistd.h>
34
35#include <common/config.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036
37/* epoll_ctl() commands */
38#ifndef EPOLL_CTL_ADD
39#define EPOLL_CTL_ADD 1
40#define EPOLL_CTL_DEL 2
41#define EPOLL_CTL_MOD 3
42#endif
43
44/* events types (bit fields) */
45#ifndef EPOLLIN
46#define EPOLLIN 1
47#define EPOLLPRI 2
48#define EPOLLOUT 4
49#define EPOLLERR 8
50#define EPOLLHUP 16
51#define EPOLLONESHOT (1 << 30)
52#define EPOLLET (1 << 31)
53#endif
54
55struct epoll_event {
56 uint32_t events;
57 union {
58 void *ptr;
59 int fd;
60 uint32_t u32;
61 uint64_t u64;
62 } data;
63};
64
65
66#if defined(__powerpc__) || defined(__powerpc64__)
67#define __NR_epoll_create 236
68#define __NR_epoll_ctl 237
69#define __NR_epoll_wait 238
70#elif defined(__sparc__) || defined(__sparc64__)
71#define __NR_epoll_create 193
72#define __NR_epoll_ctl 194
73#define __NR_epoll_wait 195
74#elif defined(__x86_64__)
75#define __NR_epoll_create 213
76#define __NR_epoll_ctl 214
77#define __NR_epoll_wait 215
78#elif defined(__alpha__)
79#define __NR_epoll_create 407
80#define __NR_epoll_ctl 408
81#define __NR_epoll_wait 409
82#elif defined (__i386__)
83#define __NR_epoll_create 254
84#define __NR_epoll_ctl 255
85#define __NR_epoll_wait 256
86#else
87#warning unsupported architecture, guessing __NR_epoll_create=254 like x86...
88#define __NR_epoll_create 254
89#define __NR_epoll_ctl 255
90#define __NR_epoll_wait 256
91#endif
92
93extern int epoll_create(int size);
94extern int epoll_ctl(int epfd, int op, int fd, struct epoll_event * event);
95extern int epoll_wait(int epfd, struct epoll_event * events, int maxevents, int timeout);
96
Willy Tarreau2dd0d472006-06-29 17:53:05 +020097#endif /* _COMMON_EPOLL_H */
Willy Tarreaubaaee002006-06-26 02:48:02 +020098
99
100/*
101 * Local variables:
102 * c-indent-level: 8
103 * c-basic-offset: 8
104 * End:
105 */