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 FFMPEG_OS_SUPPORT_H
  23 #define FFMPEG_OS_SUPPORT_H
  24
  25 /**
  26  * @file os_support.h
  27  * miscellaneous OS support macros and functions.
  28  */
  29
  30 #ifndef HAVE_SOCKLEN_T
  31 typedef int socklen_t;
  32 #endif
  33
  34 #ifdef __MINGW32__
  35 __declspec(dllimport) void __stdcall Sleep(unsigned long dwMilliseconds);
  36 // #  include <windows.h>
  37 #  define usleep(t)    Sleep((t) / 1000)
  38 #  include <fcntl.h>
  39 #  define lseek(f,p,w) _lseeki64((f), (p), (w))
  40 #endif
  41
  42 #ifdef __BEOS__
  43 #  include <sys/socket.h>
  44 #  include <netinet/in.h>
  45    /* not net_server ? */
  46 #  include <BeBuild.h>
  47    /* R5 didn't have usleep, fake it. Haiku and Zeta has it now. */
  48 #  if B_BEOS_VERSION <= B_BEOS_VERSION_5
  49 #    include <OS.h>
  50      /* doesn't set errno but that's enough */
  51 #    define usleep(t)  snooze((bigtime_t)(t))
  52 #  endif
  53 #  ifndef SA_RESTART
  54 #    warning SA_RESTART not implemented; ffserver might misbehave.
  55 #    define SA_RESTART 0
  56 #  endif
  57 #endif
  58
  59 /* most of the time closing a socket is just closing an fd */
  60 #ifndef HAVE_CLOSESOCKET
  61 #define closesocket close
  62 #endif
  63
  64 #ifdef CONFIG_FFSERVER
  65 #ifndef HAVE_POLL_H
  66 typedef unsigned long nfds_t;
  67
  68 struct pollfd {
  69     int fd;
  70     short events;  /* events to look for */
  71     short revents; /* events that occured */
  72 };
  73
  74 /* events & revents */
  75 #define POLLIN     0x0001  /* any readable data available */
  76 #define POLLOUT    0x0002  /* file descriptor is writeable */
  77 #define POLLRDNORM POLLIN
  78 #define POLLWRNORM POLLOUT
  79 #define POLLRDBAND 0x0008  /* priority readable data */
  80 #define POLLWRBAND 0x0010  /* priority data can be written */
  81 #define POLLPRI    0x0020  /* high priority readable data */
  82
  83 /* revents only */
  84 #define POLLERR    0x0004  /* errors pending */
  85 #define POLLHUP    0x0080  /* disconnected */
  86 #define POLLNVAL   0x1000  /* invalid file descriptor */
  87
  88
  89 extern int poll(struct pollfd *fds, nfds_t numfds, int timeout);
  90 #endif /* HAVE_POLL_H */
  91 #endif /* CONFIG_FFSERVER */
  92
  93 #endif /* FFMPEG_OS_SUPPORT_H */