mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-15 03:34:56 +00:00
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
|
|
* 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, OS/2)
|
|
* - lseek() (Win32)
|
|
* - floatf() (OS/2)
|
|
* - strcasecmp() (OS/2)
|
|
* - closesocket()
|
|
* - poll() (BeOS)
|
|
*/
|
|
|
|
#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))
|
|
#endif
|
|
|
|
/* XXX: check for Winsock here */
|
|
#if 0
|
|
#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
|
|
#endif
|
|
|
|
#if defined(CONFIG_OS2)
|
|
#include <stdlib.h>
|
|
static inline int usleep(unsigned int t) { return _sleep2(t / 1000); }
|
|
static inline int strcasecmp(const char* s1, const char* s2) { return stricmp(s1,s2); }
|
|
#endif
|
|
|
|
/* most of the time closing a socket is just closing an fd */
|
|
#if HAVE_CLOSESOCKET != 1
|
|
#define closesocket close
|
|
#endif
|
|
|
|
#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 /* _OS_SUPPORT_H */
|