Only special-case absolute DOS paths on systems that support them.
[libav.git] / libavformat / os_support.h
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 os_support.h
27 * miscellaneous OS support macros and functions.
28 */
29
30 #ifdef __MINGW32__
31 # include <fcntl.h>
32 # define lseek(f,p,w) _lseeki64((f), (p), (w))
33 #endif
34
35 static inline int is_dos_path(const char *path)
36 {
37 #ifdef HAVE_DOS_PATHS
38 if (path[0] && path[1] == ':')
39 return 1;
40 #endif
41 return 0;
42 }
43
44 #ifdef __BEOS__
45 # include <sys/socket.h>
46 # include <netinet/in.h>
47 /* not net_server ? */
48 # include <BeBuild.h>
49 /* R5 didn't have usleep, fake it. Haiku and Zeta has it now. */
50 # if B_BEOS_VERSION <= B_BEOS_VERSION_5
51 # include <OS.h>
52 /* doesn't set errno but that's enough */
53 # define usleep(t) snooze((bigtime_t)(t))
54 # endif
55 # ifndef SA_RESTART
56 # warning SA_RESTART not implemented; ffserver might misbehave.
57 # define SA_RESTART 0
58 # endif
59 #endif
60
61 #ifdef CONFIG_NETWORK
62 #ifndef HAVE_SOCKLEN_T
63 typedef int socklen_t;
64 #endif
65
66 /* most of the time closing a socket is just closing an fd */
67 #ifndef HAVE_CLOSESOCKET
68 #define closesocket close
69 #endif
70
71 #ifdef CONFIG_FFSERVER
72 #ifndef HAVE_POLL_H
73 typedef unsigned long nfds_t;
74
75 struct pollfd {
76 int fd;
77 short events; /* events to look for */
78 short revents; /* events that occurred */
79 };
80
81 /* events & revents */
82 #define POLLIN 0x0001 /* any readable data available */
83 #define POLLOUT 0x0002 /* file descriptor is writeable */
84 #define POLLRDNORM POLLIN
85 #define POLLWRNORM POLLOUT
86 #define POLLRDBAND 0x0008 /* priority readable data */
87 #define POLLWRBAND 0x0010 /* priority data can be written */
88 #define POLLPRI 0x0020 /* high priority readable data */
89
90 /* revents only */
91 #define POLLERR 0x0004 /* errors pending */
92 #define POLLHUP 0x0080 /* disconnected */
93 #define POLLNVAL 0x1000 /* invalid file descriptor */
94
95
96 extern int poll(struct pollfd *fds, nfds_t numfds, int timeout);
97 #endif /* HAVE_POLL_H */
98 #endif /* CONFIG_FFSERVER */
99 #endif /* CONFIG_NETWORK */
100
101 #endif /* AVFORMAT_OS_SUPPORT_H */