2 * various OS-feature replacement utilities
3 * copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #ifndef AVFORMAT_OS_SUPPORT_H
23 #define AVFORMAT_OS_SUPPORT_H
27 * miscellaneous OS support macros and functions.
43 #if defined(_WIN32) && !defined(__MINGW32CE__)
48 # define lseek(f,p,w) _lseeki64((f), (p), (w))
52 # define stat _stati64
56 # define fstat(f,s) _fstati64((f), (s))
57 #endif /* defined(_WIN32) && !defined(__MINGW32CE__) */
67 # define lseek(f,p,w) lseek64((f), (p), (w))
70 static inline int is_dos_path(const char *path)
73 if (path[0] && path[1] == ':')
86 #define SHUT_RD SD_RECEIVE
87 #define SHUT_WR SD_SEND
88 #define SHUT_RDWR SD_BOTH
91 #define S_IRUSR S_IREAD
94 #define S_IWUSR S_IWRITE
100 typedef int socklen_t;
103 /* most of the time closing a socket is just closing an fd */
104 #if !HAVE_CLOSESOCKET
105 #define closesocket close
109 typedef unsigned long nfds_t;
112 #include <winsock2.h>
114 #if !HAVE_STRUCT_POLLFD
117 short events; /* events to look for */
118 short revents; /* events that occurred */
121 /* events & revents */
122 #define POLLIN 0x0001 /* any readable data available */
123 #define POLLOUT 0x0002 /* file descriptor is writeable */
124 #define POLLRDNORM POLLIN
125 #define POLLWRNORM POLLOUT
126 #define POLLRDBAND 0x0008 /* priority readable data */
127 #define POLLWRBAND 0x0010 /* priority data can be written */
128 #define POLLPRI 0x0020 /* high priority readable data */
131 #define POLLERR 0x0004 /* errors pending */
132 #define POLLHUP 0x0080 /* disconnected */
133 #define POLLNVAL 0x1000 /* invalid file descriptor */
137 int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout);
139 #endif /* HAVE_POLL_H */
140 #endif /* CONFIG_NETWORK */
142 #if defined(__MINGW32CE__)
143 #define mkdir(a, b) _mkdir(a)
144 #elif defined(_WIN32)
147 #include "libavutil/wchar_filename.h"
150 #include <winapifamily.h>
151 // If a WINAPI_FAMILY is defined, check that the desktop API subset
153 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
154 #define USE_MOVEFILEEXA
157 // If no WINAPI_FAMILY is defined, assume the full API subset
158 #define USE_MOVEFILEEXA
161 #define DEF_FS_FUNCTION(name, wfunc, afunc) \
162 static inline int win32_##name(const char *filename_utf8) \
164 wchar_t *filename_w; \
167 if (utf8towchar(filename_utf8, &filename_w)) \
172 ret = wfunc(filename_w); \
173 av_free(filename_w); \
177 /* filename may be be in CP_ACP */ \
178 return afunc(filename_utf8); \
181 DEF_FS_FUNCTION(unlink, _wunlink, _unlink)
182 DEF_FS_FUNCTION(mkdir, _wmkdir, _mkdir)
183 DEF_FS_FUNCTION(rmdir, _wrmdir , _rmdir)
185 #define DEF_FS_FUNCTION2(name, wfunc, afunc, partype) \
186 static inline int win32_##name(const char *filename_utf8, partype par) \
188 wchar_t *filename_w; \
191 if (utf8towchar(filename_utf8, &filename_w)) \
196 ret = wfunc(filename_w, par); \
197 av_free(filename_w); \
201 /* filename may be be in CP_ACP */ \
202 return afunc(filename_utf8, par); \
205 DEF_FS_FUNCTION2(access, _waccess, _access, int)
206 DEF_FS_FUNCTION2(stat, _wstati64, _stati64, struct stat*)
208 static inline int win32_rename(const char *src_utf8, const char *dest_utf8)
210 wchar_t *src_w, *dest_w;
213 if (utf8towchar(src_utf8, &src_w))
215 if (utf8towchar(dest_utf8, &dest_w)) {
219 if (!src_w || !dest_w) {
225 ret = MoveFileExW(src_w, dest_w, MOVEFILE_REPLACE_EXISTING);
228 // Lacking proper mapping from GetLastError() error codes to errno codes
234 /* filename may be be in CP_ACP */
235 #ifdef USE_MOVEFILEEXA
236 ret = MoveFileExA(src_utf8, dest_utf8, MOVEFILE_REPLACE_EXISTING);
240 /* Windows Phone doesn't have MoveFileExA, and for Windows Store apps,
241 * it is available but not allowed by the app certification kit. However,
242 * it's unlikely that anybody would input filenames in CP_ACP there, so this
243 * fallback is kept mostly for completeness. Alternatively we could
244 * do MultiByteToWideChar(CP_ACP) and use MoveFileExW, but doing
245 * explicit conversions with CP_ACP is allegedly forbidden in windows
246 * store apps (or windows phone), and the notion of a native code page
247 * doesn't make much sense there. */
248 ret = rename(src_utf8, dest_utf8);
253 #define mkdir(a, b) win32_mkdir(a)
254 #define rename win32_rename
255 #define rmdir win32_rmdir
256 #define unlink win32_unlink
257 #define access win32_access
261 #endif /* AVFORMAT_OS_SUPPORT_H */