mirror of https://github.com/mpv-player/mpv
248 lines
6.5 KiB
C
248 lines
6.5 KiB
C
/*
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* unicode/utf-8 I/O helpers and wrappers for Windows
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*
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* This file is part of mpv.
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*
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* mpv 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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* mpv 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
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* GNU 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 mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_OSDEP_IO
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#define MPLAYER_OSDEP_IO
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#include "config.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <locale.h>
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#include "compiler.h"
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#if HAVE_GLOB_POSIX
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#include <glob.h>
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#endif
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#if HAVE_ANDROID
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# include <unistd.h>
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# include <stdio.h>
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// replace lseek with the 64bit variant
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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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// replace possible fseeko with a
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// lseek64 based solution.
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#ifdef fseeko
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# undef fseeko
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#endif
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static inline int mp_fseeko(FILE* fp, off64_t offset, int whence) {
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int ret = -1;
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if ((ret = fflush(fp)) != 0) {
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return ret;
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}
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return lseek64(fileno(fp), offset, whence) >= 0 ? 0 : -1;
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}
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#define fseeko(f,p,w) mp_fseeko((f), (p), (w))
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#endif // HAVE_ANDROID
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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// This is in POSIX.1-2008, but support outside of Linux is scarce.
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#ifndef O_CLOEXEC
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#define O_CLOEXEC 0
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#endif
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#ifndef FD_CLOEXEC
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#define FD_CLOEXEC 0
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#endif
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bool mp_set_cloexec(int fd);
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int mp_make_cloexec_pipe(int pipes[2]);
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int mp_make_wakeup_pipe(int pipes[2]);
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void mp_flush_wakeup_pipe(int pipe_end);
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#ifdef _WIN32
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#include <wchar.h>
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wchar_t *mp_from_utf8(void *talloc_ctx, const char *s);
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char *mp_to_utf8(void *talloc_ctx, const wchar_t *s);
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// Use this in win32-specific code rather than PATH_MAX or MAX_PATH.
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// This is necessary because we declare long-path aware support which raises
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// the effective limit without affecting any defines.
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// The actual limit is 32767 but there's a few edge cases that reduce
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// it. So pick this nice round number.
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// Note that this is wchars, not chars.
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#define MP_PATH_MAX (32000)
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#endif
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#ifdef __CYGWIN__
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#include <io.h>
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#endif
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#ifdef __MINGW32__
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#include <stdio.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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size_t mp_fwrite(const void *restrict buffer, size_t size, size_t count,
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FILE *restrict stream);
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int mp_printf(const char *format, ...) PRINTF_ATTRIBUTE(1, 2);
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int mp_fprintf(FILE *stream, const char *format, ...) PRINTF_ATTRIBUTE(2, 3);
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int mp_open(const char *filename, int oflag, ...);
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int mp_creat(const char *filename, int mode);
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int mp_rename(const char *oldpath, const char *newpath);
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FILE *mp_fopen(const char *filename, const char *mode);
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DIR *mp_opendir(const char *path);
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struct dirent *mp_readdir(DIR *dir);
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int mp_closedir(DIR *dir);
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int mp_mkdir(const char *path, int mode);
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int mp_unlink(const char *path);
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char *mp_win32_getcwd(char *buf, size_t size);
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char *mp_getenv(const char *name);
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#ifdef environ /* mingw defines it as _environ */
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#undef environ
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#endif
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#define environ (*mp_penviron()) /* ensure initialization and l-value */
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char ***mp_penviron(void);
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off_t mp_lseek(int fd, off_t offset, int whence);
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void *mp_dlopen(const char *filename, int flag);
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void *mp_dlsym(void *handle, const char *symbol);
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char *mp_dlerror(void);
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// mp_stat types. MSVCRT's dev_t and ino_t are way too short to be unique.
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typedef uint64_t mp_dev_t_;
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#ifdef _WIN64
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typedef unsigned __int128 mp_ino_t_;
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#else
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// 32-bit Windows doesn't have a __int128-type, which means ReFS file IDs will
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// be truncated and might collide. This is probably not a problem because ReFS
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// is not available in consumer versions of Windows.
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typedef uint64_t mp_ino_t_;
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#endif
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#define dev_t mp_dev_t_
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#define ino_t mp_ino_t_
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// mp_stat uses a different structure to MSVCRT, with 64-bit inodes
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struct mp_stat {
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dev_t st_dev;
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ino_t st_ino;
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unsigned short st_mode;
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unsigned int st_nlink;
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short st_uid;
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short st_gid;
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dev_t st_rdev;
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int64_t st_size;
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time_t st_atime;
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time_t st_mtime;
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time_t st_ctime;
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};
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int mp_stat(const char *path, struct mp_stat *buf);
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int mp_fstat(int fd, struct mp_stat *buf);
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typedef struct {
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size_t gl_pathc;
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char **gl_pathv;
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size_t gl_offs;
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void *ctx;
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} mp_glob_t;
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// glob-win.c
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int mp_glob(const char *restrict pattern, int flags,
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int (*errfunc)(const char*, int), mp_glob_t *restrict pglob);
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void mp_globfree(mp_glob_t *pglob);
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#define fwrite(...) mp_fwrite(__VA_ARGS__)
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#define printf(...) mp_printf(__VA_ARGS__)
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#define fprintf(...) mp_fprintf(__VA_ARGS__)
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#define open(...) mp_open(__VA_ARGS__)
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#define creat(...) mp_creat(__VA_ARGS__)
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#define rename(...) mp_rename(__VA_ARGS__)
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#define fopen(...) mp_fopen(__VA_ARGS__)
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#define opendir(...) mp_opendir(__VA_ARGS__)
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#define readdir(...) mp_readdir(__VA_ARGS__)
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#define closedir(...) mp_closedir(__VA_ARGS__)
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#define mkdir(...) mp_mkdir(__VA_ARGS__)
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#define unlink(...) mp_unlink(__VA_ARGS__)
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#define getcwd(...) mp_win32_getcwd(__VA_ARGS__)
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#define getenv(...) mp_getenv(__VA_ARGS__)
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#undef lseek
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#define lseek(...) mp_lseek(__VA_ARGS__)
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#define RTLD_NOW 0
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#define RTLD_LOCAL 0
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#define dlopen(fn,fg) mp_dlopen((fn), (fg))
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#define dlsym(h,s) mp_dlsym((h), (s))
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#define dlerror mp_dlerror
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// Affects both "stat()" and "struct stat".
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#undef stat
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#define stat mp_stat
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#undef fstat
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#define fstat(...) mp_fstat(__VA_ARGS__)
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#define utime(...) _utime(__VA_ARGS__)
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#define utimbuf _utimbuf
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void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset);
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int munmap(void *addr, size_t length);
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int msync(void *addr, size_t length, int flags);
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#define PROT_READ 1
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#define PROT_WRITE 2
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#define MAP_SHARED 1
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#define MAP_FAILED ((void *)-1)
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#define MS_ASYNC 1
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#define MS_SYNC 2
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#define MS_INVALIDATE 4
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#ifndef GLOB_NOMATCH
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#define GLOB_NOMATCH 3
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#endif
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#define glob_t mp_glob_t
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#define glob(...) mp_glob(__VA_ARGS__)
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#define globfree(...) mp_globfree(__VA_ARGS__)
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// These are stubs since there is not anything that helps with this on Windows.
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#define locale_t int
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#define LC_CTYPE_MASK 0
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locale_t newlocale(int, const char *, locale_t);
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locale_t uselocale(locale_t);
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void freelocale(locale_t);
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#else /* __MINGW32__ */
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#include <sys/mman.h>
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extern char **environ;
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#endif /* __MINGW32__ */
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#endif
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