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/*
* various utilities for ffmpeg system
* copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef OS_SUPPORT_H
#define OS_SUPPORT_H
/**
* @file os_support.h
* miscellaneous OS support macros and functions.
*
* - socklen_t typedef (BeOS, Innotek libc)
* - usleep() (Win32, BeOS)
* - lseek() (Win32)
* - closesocket()
* - poll() (BeOS, MinGW)
*/
#if defined(__BEOS__) || defined(__INNOTEK_LIBC__)
typedef int socklen_t;
#endif
#ifdef __MINGW32__
__declspec(dllimport) void __stdcall Sleep(unsigned long dwMilliseconds);
// # include <windows.h>
# define usleep(t) Sleep((t) / 1000)
# include <fcntl.h>
# define lseek(f,p,w) _lseeki64((f), (p), (w))
# define HAVE_CLOSESOCKET 1
#endif
#ifdef __BEOS__
# include <sys/socket.h>
# include <netinet/in.h>
/* not net_server ? */
# if IPPROTO_TCP != 6
# define HAVE_CLOSESOCKET 1
# endif
# include <BeBuild.h>
/* R5 didn't have usleep, fake it. Haiku and Zeta has it now. */
# if B_BEOS_VERSION <= B_BEOS_VERSION_5
# include <OS.h>
/* doesn't set errno but that's enough */
# define usleep(t) snooze((bigtime_t)(t))
# endif
# ifndef SA_RESTART
# warning SA_RESTART not implemented; ffserver might misbehave.
# define SA_RESTART 0
# endif
#endif
/* most of the time closing a socket is just closing an fd */
#if HAVE_CLOSESOCKET != 1
#define closesocket close
#endif
#ifdef CONFIG_FFSERVER
#ifndef HAVE_SYS_POLL_H
typedef unsigned long nfds_t;
struct pollfd {
int fd;
short events; /* events to look for */
short revents; /* events that occured */
};
/* events & revents */
#define POLLIN 0x0001 /* any readable data available */
#define POLLOUT 0x0002 /* file descriptor is writeable */
#define POLLRDNORM POLLIN
#define POLLWRNORM POLLOUT
#define POLLRDBAND 0x0008 /* priority readable data */
#define POLLWRBAND 0x0010 /* priority data can be written */
#define POLLPRI 0x0020 /* high priority readable data */
/* revents only */
#define POLLERR 0x0004 /* errors pending */
#define POLLHUP 0x0080 /* disconnected */
#define POLLNVAL 0x1000 /* invalid file descriptor */
extern int poll(struct pollfd *fds, nfds_t numfds, int timeout);
#endif /* HAVE_SYS_POLL_H */
#endif /* CONFIG_FFSERVER */
#endif /* OS_SUPPORT_H */
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