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ffmpeg / libavformat / os_support.h @ 68bf8d83

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/*
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 * various utilities for ffmpeg system
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 * copyright (c) 2000, 2001, 2002 Fabrice Bellard
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#ifndef OS_SUPPORT_H
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#define OS_SUPPORT_H
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/**
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 * @file os_support.h
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 * miscellaneous OS support macros and functions.
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 *
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 * - socklen_t typedef (BeOS, Innotek libc)
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 * - usleep() (Win32, BeOS)
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 * - lseek() (Win32)
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 * - closesocket()
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 * - poll() (BeOS, MinGW)
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 */
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#if defined(__BEOS__) || defined(__INNOTEK_LIBC__)
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typedef int socklen_t;
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#endif
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#ifdef __MINGW32__
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__declspec(dllimport) void __stdcall Sleep(unsigned long dwMilliseconds);
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// #  include <windows.h>
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#  define usleep(t)    Sleep((t) / 1000)
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#  include <fcntl.h>
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#  define lseek(f,p,w) _lseeki64((f), (p), (w))
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#endif
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#ifdef __BEOS__
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#  include <sys/socket.h>
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#  include <netinet/in.h>
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   /* not net_server ? */
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#  include <BeBuild.h>
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   /* R5 didn't have usleep, fake it. Haiku and Zeta has it now. */
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#  if B_BEOS_VERSION <= B_BEOS_VERSION_5
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#    include <OS.h>
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     /* doesn't set errno but that's enough */
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#    define usleep(t)  snooze((bigtime_t)(t))
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#  endif
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#  ifndef SA_RESTART
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#    warning SA_RESTART not implemented; ffserver might misbehave.
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#    define SA_RESTART 0
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#  endif
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#endif
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/* most of the time closing a socket is just closing an fd */
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#ifndef HAVE_CLOSESOCKET
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#define closesocket close
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#endif
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#ifdef CONFIG_FFSERVER
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#ifndef HAVE_SYS_POLL_H
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typedef unsigned long nfds_t;
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struct pollfd {
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    int fd;
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    short events;  /* events to look for */
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    short revents; /* events that occured */
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};
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/* events & revents */
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#define POLLIN     0x0001  /* any readable data available */
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#define POLLOUT    0x0002  /* file descriptor is writeable */
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#define POLLRDNORM POLLIN
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#define POLLWRNORM POLLOUT
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#define POLLRDBAND 0x0008  /* priority readable data */
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#define POLLWRBAND 0x0010  /* priority data can be written */
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#define POLLPRI    0x0020  /* high priority readable data */
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/* revents only */
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#define POLLERR    0x0004  /* errors pending */
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#define POLLHUP    0x0080  /* disconnected */
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#define POLLNVAL   0x1000  /* invalid file descriptor */
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extern int poll(struct pollfd *fds, nfds_t numfds, int timeout);
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#endif /* HAVE_SYS_POLL_H */
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#endif /* CONFIG_FFSERVER */
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#endif /* OS_SUPPORT_H */