2 * various OS-feature replacement utilities
3 * copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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__)
46 # define lseek(f,p,w) _lseeki64((f), (p), (w))
48 # define stat _stati64
50 # define fstat(f,s) _fstati64((f), (s))
51 #endif /* defined(_WIN32) && !defined(__MINGW32CE__) */
53 static inline int is_dos_path(const char *path)
56 if (path[0] && path[1] == ':')
62 #if defined(__OS2__) || defined(__Plan9__)
69 #define SHUT_RD SD_RECEIVE
70 #define SHUT_WR SD_SEND
71 #define SHUT_RDWR SD_BOTH
74 #define S_IRUSR S_IREAD
77 #define S_IWUSR S_IWRITE
83 typedef int socklen_t;
86 /* most of the time closing a socket is just closing an fd */
88 #define closesocket close
92 typedef unsigned long nfds_t;
97 #if !HAVE_STRUCT_POLLFD
100 short events; /* events to look for */
101 short revents; /* events that occurred */
104 /* events & revents */
105 #define POLLIN 0x0001 /* any readable data available */
106 #define POLLOUT 0x0002 /* file descriptor is writeable */
107 #define POLLRDNORM POLLIN
108 #define POLLWRNORM POLLOUT
109 #define POLLRDBAND 0x0008 /* priority readable data */
110 #define POLLWRBAND 0x0010 /* priority data can be written */
111 #define POLLPRI 0x0020 /* high priority readable data */
114 #define POLLERR 0x0004 /* errors pending */
115 #define POLLHUP 0x0080 /* disconnected */
116 #define POLLNVAL 0x1000 /* invalid file descriptor */
120 int ff_poll(struct pollfd *fds, nfds_t numfds, int timeout);
122 #endif /* HAVE_POLL_H */
123 #endif /* CONFIG_NETWORK */
125 #if defined(__MINGW32CE__)
126 #define mkdir(a, b) _mkdir(a)
127 #elif defined(_WIN32)
130 #include "libavutil/wchar_filename.h"
133 #include <winapifamily.h>
134 // If a WINAPI_FAMILY is defined, check that the desktop API subset
136 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
137 #define USE_MOVEFILEEXA
140 // If no WINAPI_FAMILY is defined, assume the full API subset
141 #define USE_MOVEFILEEXA
144 #define DEF_FS_FUNCTION(name, wfunc, afunc) \
145 static inline int win32_##name(const char *filename_utf8) \
147 wchar_t *filename_w; \
150 if (utf8towchar(filename_utf8, &filename_w)) \
155 ret = wfunc(filename_w); \
156 av_free(filename_w); \
160 /* filename may be be in CP_ACP */ \
161 return afunc(filename_utf8); \
164 DEF_FS_FUNCTION(unlink, _wunlink, _unlink)
165 DEF_FS_FUNCTION(mkdir, _wmkdir, _mkdir)
166 DEF_FS_FUNCTION(rmdir, _wrmdir , _rmdir)
168 static inline int win32_rename(const char *src_utf8, const char *dest_utf8)
170 wchar_t *src_w, *dest_w;
173 if (utf8towchar(src_utf8, &src_w))
175 if (utf8towchar(dest_utf8, &dest_w)) {
179 if (!src_w || !dest_w) {
185 ret = MoveFileExW(src_w, dest_w, MOVEFILE_REPLACE_EXISTING);
188 // Lacking proper mapping from GetLastError() error codes to errno codes
194 /* filename may be be in CP_ACP */
195 #ifdef USE_MOVEFILEEXA
196 ret = MoveFileExA(src_utf8, dest_utf8, MOVEFILE_REPLACE_EXISTING);
200 /* Windows Phone doesn't have MoveFileExA, and for Windows Store apps,
201 * it is available but not allowed by the app certification kit. However,
202 * it's unlikely that anybody would input filenames in CP_ACP there, so this
203 * fallback is kept mostly for completeness. Alternatively we could
204 * do MultiByteToWideChar(CP_ACP) and use MoveFileExW, but doing
205 * explicit conversions with CP_ACP is allegedly forbidden in windows
206 * store apps (or windows phone), and the notion of a native code page
207 * doesn't make much sense there. */
208 ret = rename(src_utf8, dest_utf8);
213 #define mkdir(a, b) win32_mkdir(a)
214 #define rename win32_rename
215 #define rmdir win32_rmdir
216 #define unlink win32_unlink
220 #endif /* AVFORMAT_OS_SUPPORT_H */