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249 lines
7.3 KiB
249 lines
7.3 KiB
/* |
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* various OS-feature replacement utilities |
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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 AVFORMAT_OS_SUPPORT_H |
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#define AVFORMAT_OS_SUPPORT_H |
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/** |
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* @file |
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* miscellaneous OS support macros and functions. |
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*/ |
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#include "config.h" |
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#include <sys/stat.h> |
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#ifdef _WIN32 |
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#if HAVE_DIRECT_H |
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#include <direct.h> |
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#endif |
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#if HAVE_IO_H |
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#include <io.h> |
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#endif |
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#endif |
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#if defined(_WIN32) && !defined(__MINGW32CE__) |
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# include <fcntl.h> |
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# ifdef lseek |
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# undef lseek |
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# endif |
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# define lseek(f,p,w) _lseeki64((f), (p), (w)) |
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# ifdef stat |
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# undef stat |
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# endif |
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# define stat _stati64 |
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# ifdef fstat |
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# undef fstat |
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# endif |
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# define fstat(f,s) _fstati64((f), (s)) |
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#endif /* defined(_WIN32) && !defined(__MINGW32CE__) */ |
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#ifdef __ANDROID__ |
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# if HAVE_UNISTD_H |
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# include <unistd.h> |
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# endif |
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# ifdef lseek |
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# undef lseek |
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# endif |
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# define lseek(f,p,w) lseek64((f), (p), (w)) |
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#endif |
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static inline int is_dos_path(const char *path) |
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{ |
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#if HAVE_DOS_PATHS |
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if (path[0] && path[1] == ':') |
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return 1; |
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#endif |
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return 0; |
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} |
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#if defined(__OS2__) |
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#define SHUT_RD 0 |
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#define SHUT_WR 1 |
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#define SHUT_RDWR 2 |
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#endif |
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#if defined(_WIN32) |
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#define SHUT_RD SD_RECEIVE |
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#define SHUT_WR SD_SEND |
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#define SHUT_RDWR SD_BOTH |
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#ifndef S_IRUSR |
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#define S_IRUSR S_IREAD |
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#endif |
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#ifndef S_IWUSR |
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#define S_IWUSR S_IWRITE |
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#endif |
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#endif |
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#if CONFIG_NETWORK |
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#if !HAVE_SOCKLEN_T |
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typedef int socklen_t; |
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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 |
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#define closesocket close |
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#endif |
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#if !HAVE_POLL_H |
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typedef unsigned long nfds_t; |
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#if HAVE_WINSOCK2_H |
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#include <winsock2.h> |
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#endif |
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#if !HAVE_STRUCT_POLLFD |
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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 occurred */ |
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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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#endif |
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int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout); |
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#define poll ff_poll |
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#endif /* HAVE_POLL_H */ |
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#endif /* CONFIG_NETWORK */ |
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#if defined(__MINGW32CE__) |
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#define mkdir(a, b) _mkdir(a) |
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#elif defined(_WIN32) |
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#include <stdio.h> |
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#include <windows.h> |
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#include "libavutil/wchar_filename.h" |
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#define DEF_FS_FUNCTION(name, wfunc, afunc) \ |
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static inline int win32_##name(const char *filename_utf8) \ |
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{ \ |
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wchar_t *filename_w; \ |
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int ret; \ |
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\ |
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if (utf8towchar(filename_utf8, &filename_w)) \ |
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return -1; \ |
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if (!filename_w) \ |
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goto fallback; \ |
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\ |
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ret = wfunc(filename_w); \ |
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av_free(filename_w); \ |
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return ret; \ |
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\ |
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fallback: \ |
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/* filename may be be in CP_ACP */ \ |
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return afunc(filename_utf8); \ |
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} |
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DEF_FS_FUNCTION(unlink, _wunlink, _unlink) |
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DEF_FS_FUNCTION(mkdir, _wmkdir, _mkdir) |
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DEF_FS_FUNCTION(rmdir, _wrmdir , _rmdir) |
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#define DEF_FS_FUNCTION2(name, wfunc, afunc, partype) \ |
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static inline int win32_##name(const char *filename_utf8, partype par) \ |
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{ \ |
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wchar_t *filename_w; \ |
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int ret; \ |
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\ |
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if (utf8towchar(filename_utf8, &filename_w)) \ |
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return -1; \ |
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if (!filename_w) \ |
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goto fallback; \ |
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\ |
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ret = wfunc(filename_w, par); \ |
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av_free(filename_w); \ |
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return ret; \ |
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\ |
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fallback: \ |
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/* filename may be be in CP_ACP */ \ |
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return afunc(filename_utf8, par); \ |
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} |
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DEF_FS_FUNCTION2(access, _waccess, _access, int) |
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DEF_FS_FUNCTION2(stat, _wstati64, _stati64, struct stat*) |
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static inline int win32_rename(const char *src_utf8, const char *dest_utf8) |
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{ |
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wchar_t *src_w, *dest_w; |
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int ret; |
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if (utf8towchar(src_utf8, &src_w)) |
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return -1; |
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if (utf8towchar(dest_utf8, &dest_w)) { |
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av_free(src_w); |
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return -1; |
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} |
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if (!src_w || !dest_w) { |
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av_free(src_w); |
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av_free(dest_w); |
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goto fallback; |
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} |
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ret = MoveFileExW(src_w, dest_w, MOVEFILE_REPLACE_EXISTING); |
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av_free(src_w); |
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av_free(dest_w); |
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// Lacking proper mapping from GetLastError() error codes to errno codes |
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if (ret) |
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errno = EPERM; |
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return ret; |
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fallback: |
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/* filename may be be in CP_ACP */ |
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#if !HAVE_WINRT |
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ret = MoveFileExA(src_utf8, dest_utf8, MOVEFILE_REPLACE_EXISTING); |
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if (ret) |
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errno = EPERM; |
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#else |
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/* Windows Phone doesn't have MoveFileExA, and for Windows Store apps, |
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* it is available but not allowed by the app certification kit. However, |
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* it's unlikely that anybody would input filenames in CP_ACP there, so this |
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* fallback is kept mostly for completeness. Alternatively we could |
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* do MultiByteToWideChar(CP_ACP) and use MoveFileExW, but doing |
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* explicit conversions with CP_ACP is allegedly forbidden in windows |
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* store apps (or windows phone), and the notion of a native code page |
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* doesn't make much sense there. */ |
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ret = rename(src_utf8, dest_utf8); |
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#endif |
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return ret; |
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} |
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#define mkdir(a, b) win32_mkdir(a) |
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#define rename win32_rename |
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#define rmdir win32_rmdir |
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#define unlink win32_unlink |
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#define access win32_access |
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#endif |
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#endif /* AVFORMAT_OS_SUPPORT_H */
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