1/*
2 * various utilities for ffmpeg system
3 * copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg 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; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg 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 FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#ifndef AVFORMAT_OS_SUPPORT_H
23#define AVFORMAT_OS_SUPPORT_H
24
25/**
26 * @file libavformat/os_support.h
27 * miscellaneous OS support macros and functions.
28 */
29
30#include "config.h"
31
32#ifdef __MINGW32__
33#  include <fcntl.h>
34#  define lseek(f,p,w) _lseeki64((f), (p), (w))
35#endif
36
37static inline int is_dos_path(const char *path)
38{
39#if HAVE_DOS_PATHS
40    if (path[0] && path[1] == ':')
41        return 1;
42#endif
43    return 0;
44}
45
46#ifdef __BEOS__
47#  include <sys/socket.h>
48#  include <netinet/in.h>
49   /* not net_server ? */
50#  include <BeBuild.h>
51   /* R5 didn't have usleep, fake it. Haiku and Zeta has it now. */
52#  if B_BEOS_VERSION <= B_BEOS_VERSION_5
53#    include <OS.h>
54     /* doesn't set errno but that's enough */
55#    define usleep(t)  snooze((bigtime_t)(t))
56#  endif
57#  ifndef SA_RESTART
58#    warning SA_RESTART not implemented; ffserver might misbehave.
59#    define SA_RESTART 0
60#  endif
61#endif
62
63#if CONFIG_NETWORK
64#if !HAVE_SOCKLEN_T
65typedef int socklen_t;
66#endif
67
68/* most of the time closing a socket is just closing an fd */
69#if !HAVE_CLOSESOCKET
70#define closesocket close
71#endif
72
73#if CONFIG_FFSERVER
74#if !HAVE_POLL_H
75typedef unsigned long nfds_t;
76
77struct pollfd {
78    int fd;
79    short events;  /* events to look for */
80    short revents; /* events that occurred */
81};
82
83/* events & revents */
84#define POLLIN     0x0001  /* any readable data available */
85#define POLLOUT    0x0002  /* file descriptor is writeable */
86#define POLLRDNORM POLLIN
87#define POLLWRNORM POLLOUT
88#define POLLRDBAND 0x0008  /* priority readable data */
89#define POLLWRBAND 0x0010  /* priority data can be written */
90#define POLLPRI    0x0020  /* high priority readable data */
91
92/* revents only */
93#define POLLERR    0x0004  /* errors pending */
94#define POLLHUP    0x0080  /* disconnected */
95#define POLLNVAL   0x1000  /* invalid file descriptor */
96
97
98int poll(struct pollfd *fds, nfds_t numfds, int timeout);
99#endif /* HAVE_POLL_H */
100#endif /* CONFIG_FFSERVER */
101#endif /* CONFIG_NETWORK */
102
103#endif /* AVFORMAT_OS_SUPPORT_H */
104