mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-24 03:39:45 +00:00
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*
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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 HAVE_WINSOCK2_H
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# define HAVE_CLOSESOCKET 1
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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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# if IPPROTO_TCP != 6
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# define HAVE_CLOSESOCKET 1
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# endif
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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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#if HAVE_CLOSESOCKET != 1
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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 */
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