410 lines
9.9 KiB
C
410 lines
9.9 KiB
C
/*
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* Copyright (C) 2011 Andrea Mazzoleni
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __PORTABLE_MINGW_H
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#define __PORTABLE_MINGW_H
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#ifdef __MINGW32__ /* Only for MingW */
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#include <wchar.h>
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/**
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* Always assume that the assembler supports SSE2, SSSE3, SSE42 and AVX2 instructions in x86
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*/
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#ifdef CONFIG_X86
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#define HAVE_SSE2 1
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#define HAVE_SSSE3 1
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#define HAVE_SSE42 1
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#define HAVE_AVX2 1
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#endif
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/****************************************************************************/
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/* file */
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/**
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* Redefines PATH_MAX to allow very long paths.
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*/
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#undef PATH_MAX
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#define PATH_MAX 1024
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/* Remap functions and types */
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#undef fopen
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#define fopen windows_fopen
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#undef open
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#define open windows_open
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#define open_noatime windows_open
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#undef stat
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#define stat windows_stat
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#undef lstat
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#define lstat windows_lstat
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#undef off_t
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#define off_t off64_t
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#undef fstat
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#define fstat windows_fstat
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#define HAVE_FTRUNCATE 1
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#undef ftruncate
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#define ftruncate windows_ftruncate
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#define HAVE_FALLOCATE 1
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#undef fallocate
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#define fallocate windows_fallocate
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#define HAVE_FSYNC 1
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#undef fsync
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#define fsync windows_fsync
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#undef rename
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#define rename windows_rename
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#undef remove
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#define remove windows_remove
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#undef mkdir
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#define mkdir(a, b) windows_mkdir(a)
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#undef rmdir
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#define rmdir windows_rmdir
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#undef dirent
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#define dirent windows_dirent
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#undef DIR
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#define DIR windows_dir
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#undef opendir
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#define opendir windows_opendir
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#undef readdir
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#define readdir windows_readdir
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#undef closedir
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#define closedir windows_closedir
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#define HAVE_FUTIMENS 1
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#undef futimens
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#define futimens windows_futimens
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#define HAVE_UTIMENSAT 1
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#define AT_FDCWD -1
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#define AT_SYMLINK_NOFOLLOW 1
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#undef utimensat
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#define utimensat windows_utimensat
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#define O_NOFOLLOW 0
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#define dirent_hidden windows_dirent_hidden
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#define HAVE_STRUCT_DIRENT_D_STAT 1
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#undef HAVE_STRUCT_DIRENT_D_INO
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#define HAVE_STRUCT_STAT_ST_NLINK 1
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#define dirent_lstat windows_dirent_lstat
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#define stat_desc windows_stat_desc
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#undef sleep
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#define sleep windows_sleep
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/* 4==DIR, 5,6,7=free, 8==REG */
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#define S_IFLNK 0x5000 /* Symbolic link to file */
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#define S_ISLNK(m) (((m) & _S_IFMT) == S_IFLNK)
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#define S_IFLNKDIR 0x6000 /* Symbolic link to directory */
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#define S_ISLNKDIR(m) (((m) & _S_IFMT) == S_IFLNKDIR)
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#define S_IFJUN 0x7000 /* Junction */
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#define S_ISJUN(m) (((m) & _S_IFMT) == S_IFJUN)
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#undef readlink
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#define readlink windows_readlink
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#undef symlink
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#define symlink windows_symlink
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#undef link
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#define link windows_link
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#undef strerror
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#define strerror windows_strerror
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#undef read
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#define read windows_read
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#undef write
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#define write windows_write
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#undef lseek
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#define lseek windows_lseek
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#undef pread
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#define pread windows_pread
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#undef pwrite
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#define pwrite windows_pwrite
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#define direct_size windows_direct_size
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#define HAVE_DIRECT_IO 1
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#define O_DIRECT 0x10000000
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#define O_DSYNC 0x20000000
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/**
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* If nanoseconds are not supported, we report the special STAT_NSEC_INVALID value,
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* to mark that it's undefined.
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*/
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#define STAT_NSEC_INVALID -1
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/* We have nano second support */
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#define STAT_NSEC(st) ((int)(st)->st_mtimensec)
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/**
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* Generic stat information.
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*/
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struct windows_stat {
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uint64_t st_ino;
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int64_t st_size;
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int64_t st_mtime;
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int32_t st_mtimensec;
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uint32_t st_mode;
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uint32_t st_dev;
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uint32_t st_nlink;
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int st_hidden;
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const char* st_desc;
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int st_sync; /**< If the information are in sync with the file-system. */
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};
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/**
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* Like the C fstat().
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*/
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int windows_fstat(int fd, struct windows_stat* st);
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/**
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* Like the C lstat(), but with some limitations.
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*
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* The st_ino field may be 0 if it's not possible to read it in a fast way.
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* Specifically this always happens.
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*
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* In case of hardlinks, the size and the attributes of the file can
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* be completely bogus, because changes made by other hardlinks are reported
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* in the directory entry only when the file is opened.
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*
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* MSDN CreateHardLinks
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* http://msdn.microsoft.com/en-us/library/windows/desktop/aa363860%28v=vs.85%29.aspx
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* 'When you create a hard link on the NTFS file system, the file attribute information'
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* 'in the directory entry is refreshed only when the file is opened, or when'
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* 'GetFileInformationByHandle is called with the handle of a specific file.'
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*
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* MSDN HardLinks and Junctions
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* http://msdn.microsoft.com/en-us/library/windows/desktop/aa365006%28v=vs.85%29.aspx
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* 'However, the directory entry size and attribute information is updated only'
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* 'for the link through which the change was made.'
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*
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* Use lstat_sync() to override these limitations.
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*/
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int windows_lstat(const char* file, struct windows_stat* st);
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/**
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* Like the C stat().
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*/
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int windows_stat(const char* file, struct windows_stat* st);
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/**
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* Like the C mkdir().
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*/
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int windows_mkdir(const char* file);
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/**
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* Like rmdir().
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*/
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int windows_rmdir(const char* file);
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/**
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* Like the C lstat(), but with some limitations.
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*
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* This call fills all the st_* fields of the stat struct,
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* and if provided the pointer, also the physical offset.
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*
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* It doesn't work for all kinds of files and directories.
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* You must call it only for regular files.
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* For example, "C:\System Volume Information" cannot be accessed
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* with error ERROR_ACCESS_DENIED.
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*
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* Note that instead lstat() works for all the files.
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*/
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#define HAVE_LSTAT_SYNC 1
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int lstat_sync(const char* file, struct windows_stat* st, uint64_t* physical);
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/**
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* Like the C ftruncate().
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*/
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int windows_ftruncate(int fd, off64_t off);
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/**
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* Like the C fallocate().
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*/
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int windows_fallocate(int fd, int mode, off64_t off, off64_t len);
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/**
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* Like the C fsync().
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*/
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int windows_fsync(int fd);
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/**
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* Like the C futimes().
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*/
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int windows_futimes(int fd, struct timeval tv[2]);
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struct windows_timespec {
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int64_t tv_sec;
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int tv_nsec;
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};
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#define timespec windows_timespec
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/**
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* Like the C futimens().
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*/
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int windows_futimens(int fd, struct windows_timespec tv[2]);
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/**
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* Like the C utimensat().
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*/
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int windows_utimensat(int fd, const char* file, struct windows_timespec tv[2], int flags);
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/**
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* Like the C rename().
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*/
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int windows_rename(const char* a, const char* b);
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/**
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* Like the C remove().
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*/
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int windows_remove(const char* a);
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/**
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* Like the C fopen().
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*/
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FILE* windows_fopen(const char* file, const char* mode);
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/**
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* Like the C open().
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*/
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int windows_open(const char* file, int flags, ...);
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/**
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* Like the C dirent.
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*/
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struct windows_dirent {
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char d_name[PATH_MAX];
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struct windows_stat d_stat;
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};
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/**
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* Like the C DIR.
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*/
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struct windows_dir_struct;
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typedef struct windows_dir_struct windows_dir;
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/**
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* Like the C opendir().
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*/
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windows_dir* windows_opendir(const char* dir);
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/**
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* Like the C readdir().
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*/
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struct windows_dirent* windows_readdir(windows_dir* dirstream);
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/**
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* Like the C closedir().
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*/
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int windows_closedir(windows_dir* dirstream);
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/**
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* Convert a dirent record to a lstat record, but with some limitations.
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*
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* The st_mode field may be 0 if the file is a reparse point.
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* Specifically this happens if we are using GetFileInformationByHandleEx()
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* to read the directory stream.
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*
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* The st_ino field may be 0 if it's not possible to read it in a fast way.
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* Specifically this happens if we are using FindFirst/FindNext to enumerate
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* the directory.
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*
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* In such cases, call lstat_sync() to fill the missing fields.
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*/
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void windows_dirent_lstat(const struct windows_dirent* dd, struct windows_stat* st);
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/**
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* Like dirent_hidden().
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*/
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int windows_dirent_hidden(struct dirent* dd);
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/**
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* Like stat_desc().
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*/
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const char* windows_stat_desc(struct stat* st);
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/**
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* Like sleep().
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*/
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void windows_sleep(unsigned seconds);
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/**
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* Like readlink().
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*/
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int windows_readlink(const char* file, char* buffer, size_t size);
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/**
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* Like symlink().
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* Return ENOSYS if symlinks are not supported.
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*/
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int windows_symlink(const char* existing, const char* file);
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/**
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* Like link().
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*/
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int windows_link(const char* existing, const char* file);
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/**
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* Like strerror().
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*/
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const char* windows_strerror(int err);
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/**
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* Like read().
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*/
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ssize_t windows_read(int f, void* buffer, size_t size);
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/**
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* Like write().
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*/
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ssize_t windows_write(int f, const void* buffer, size_t size);
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/**
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* Like lseek().
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*/
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off_t windows_lseek(int f, off_t offset, int whence);
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/**
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* Like pread().
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*/
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ssize_t windows_pread(int f, void* buffer, size_t size, off_t offset);
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/**
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* Like pwrite().
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*/
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ssize_t windows_pwrite(int f, const void* buffer, size_t size, off_t offset);
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/**
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* List direct_size().
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*/
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size_t windows_direct_size(void);
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/****************************************************************************/
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/* thread */
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/**
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* Like the pthread_* equivalent.
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*/
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int windows_mutex_init(windows_mutex_t* mutex, void* attr);
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int windows_mutex_destroy(windows_mutex_t* mutex);
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int windows_mutex_lock(windows_mutex_t* mutex);
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int windows_mutex_unlock(windows_mutex_t* mutex);
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int windows_cond_init(windows_cond_t* cond, void* attr);
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int windows_cond_destroy(windows_cond_t* cond);
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int windows_cond_signal(windows_cond_t* cond);
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int windows_cond_broadcast(windows_cond_t* cond);
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int windows_cond_wait(windows_cond_t* cond, windows_mutex_t* mutex);
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int windows_key_create(windows_key_t* key, void(* destructor)(void*));
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int windows_key_delete(windows_key_t key);
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void* windows_getspecific(windows_key_t key);
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int windows_setspecific(windows_key_t key, void* value);
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int windows_create(thread_id_t* thread, void* attr, void* (* func)(void *), void *arg);
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int windows_join(thread_id_t thread, void** retval);
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#endif
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#endif
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