Move FcStat to separate compilation unit
FcStat() logic is quite complicated in presence of various semi-broken operating systems and filesystems, split it out in order to make it a bit easier. Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
This commit is contained in:
Mikhail Gusarov
Akira TAGOH
parent
26160366d7
commit
6a83c1ad40
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@ -119,6 +119,7 @@ libfontconfig_la_SOURCES = \
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fcname.c \
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fcpat.c \
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fcserialize.c \
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fcstat.c \
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fcstr.c \
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fcxml.c \
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ftglue.h \
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@ -71,94 +71,6 @@ static void MD5Transform(FcChar32 buf[4], FcChar32 in[16]);
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#define CACHEBASE_LEN (1 + 32 + 1 + sizeof (FC_ARCHITECTURE) + sizeof (FC_CACHE_SUFFIX))
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#ifdef _WIN32
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#include <windows.h>
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#ifdef __GNUC__
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typedef long long INT64;
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#define EPOCH_OFFSET 11644473600ll
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#else
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#define EPOCH_OFFSET 11644473600i64
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typedef __int64 INT64;
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#endif
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/* Workaround for problems in the stat() in the Microsoft C library:
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*
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* 1) stat() uses FindFirstFile() to get the file
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* attributes. Unfortunately this API doesn't return correct values
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* for modification time of a directory until some time after a file
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* or subdirectory has been added to the directory. (This causes
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* run-test.sh to fail, for instance.) GetFileAttributesEx() is
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* better, it returns the updated timestamp right away.
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*
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* 2) stat() does some strange things related to backward
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* compatibility with the local time timestamps on FAT volumes and
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* daylight saving time. This causes problems after the switches
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* to/from daylight saving time. See
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* http://bugzilla.gnome.org/show_bug.cgi?id=154968 , especially
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* comment #30, and http://www.codeproject.com/datetime/dstbugs.asp .
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* We don't need any of that, FAT and Win9x are as good as dead. So
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* just use the UTC timestamps from NTFS, converted to the Unix epoch.
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*/
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int
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FcStat (const FcChar8 *file, struct stat *statb)
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{
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WIN32_FILE_ATTRIBUTE_DATA wfad;
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char full_path_name[MAX_PATH];
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char *basename;
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DWORD rc;
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if (!GetFileAttributesEx (file, GetFileExInfoStandard, &wfad))
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return -1;
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statb->st_dev = 0;
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/* Calculate a pseudo inode number as a hash of the full path name.
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* Call GetLongPathName() to get the spelling of the path name as it
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* is on disk.
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*/
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rc = GetFullPathName (file, sizeof (full_path_name), full_path_name, &basename);
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if (rc == 0 || rc > sizeof (full_path_name))
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return -1;
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rc = GetLongPathName (full_path_name, full_path_name, sizeof (full_path_name));
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statb->st_ino = FcStringHash (full_path_name);
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statb->st_mode = _S_IREAD | _S_IWRITE;
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statb->st_mode |= (statb->st_mode >> 3) | (statb->st_mode >> 6);
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if (wfad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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statb->st_mode |= _S_IFDIR;
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else
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statb->st_mode |= _S_IFREG;
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statb->st_nlink = 1;
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statb->st_uid = statb->st_gid = 0;
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statb->st_rdev = 0;
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if (wfad.nFileSizeHigh > 0)
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return -1;
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statb->st_size = wfad.nFileSizeLow;
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statb->st_atime = (*(INT64 *)&wfad.ftLastAccessTime)/10000000 - EPOCH_OFFSET;
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statb->st_mtime = (*(INT64 *)&wfad.ftLastWriteTime)/10000000 - EPOCH_OFFSET;
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statb->st_ctime = statb->st_mtime;
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return 0;
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}
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#else
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int
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FcStat (const FcChar8 *file, struct stat *statb)
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{
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return stat ((char *) file, statb);
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}
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#endif
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static FcBool
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FcCacheIsMmapSafe (int fd)
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{
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@ -567,9 +567,6 @@ FcCacheFini (void);
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FcPrivate void
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FcDirCacheReference (FcCache *cache, int nref);
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FcPrivate int
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FcStat (const FcChar8 *file, struct stat *statb);
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/* fccfg.c */
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FcPrivate FcChar8 *
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@ -1020,6 +1017,11 @@ extern FcPrivate const FcMatrix FcIdentityMatrix;
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FcPrivate void
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FcMatrixFree (FcMatrix *mat);
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/* fcstat.c */
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FcPrivate int
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FcStat (const FcChar8 *file, struct stat *statb);
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/* fcstr.c */
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FcPrivate void
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FcStrSetSort (FcStrSet * set);
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@ -0,0 +1,116 @@
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/*
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* Copyright © 2000 Keith Packard
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* Copyright © 2005 Patrick Lam
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the author(s) not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. The authors make no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "fcint.h"
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#include "fcarch.h"
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#include <dirent.h>
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#ifdef _WIN32
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#include <windows.h>
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#ifdef __GNUC__
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typedef long long INT64;
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#define EPOCH_OFFSET 11644473600ll
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#else
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#define EPOCH_OFFSET 11644473600i64
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typedef __int64 INT64;
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#endif
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/* Workaround for problems in the stat() in the Microsoft C library:
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*
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* 1) stat() uses FindFirstFile() to get the file
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* attributes. Unfortunately this API doesn't return correct values
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* for modification time of a directory until some time after a file
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* or subdirectory has been added to the directory. (This causes
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* run-test.sh to fail, for instance.) GetFileAttributesEx() is
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* better, it returns the updated timestamp right away.
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*
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* 2) stat() does some strange things related to backward
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* compatibility with the local time timestamps on FAT volumes and
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* daylight saving time. This causes problems after the switches
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* to/from daylight saving time. See
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* http://bugzilla.gnome.org/show_bug.cgi?id=154968 , especially
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* comment #30, and http://www.codeproject.com/datetime/dstbugs.asp .
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* We don't need any of that, FAT and Win9x are as good as dead. So
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* just use the UTC timestamps from NTFS, converted to the Unix epoch.
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*/
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int
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FcStat (const FcChar8 *file, struct stat *statb)
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{
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WIN32_FILE_ATTRIBUTE_DATA wfad;
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char full_path_name[MAX_PATH];
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char *basename;
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DWORD rc;
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if (!GetFileAttributesEx (file, GetFileExInfoStandard, &wfad))
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return -1;
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statb->st_dev = 0;
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/* Calculate a pseudo inode number as a hash of the full path name.
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* Call GetLongPathName() to get the spelling of the path name as it
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* is on disk.
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*/
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rc = GetFullPathName (file, sizeof (full_path_name), full_path_name, &basename);
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if (rc == 0 || rc > sizeof (full_path_name))
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return -1;
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rc = GetLongPathName (full_path_name, full_path_name, sizeof (full_path_name));
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statb->st_ino = FcStringHash (full_path_name);
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statb->st_mode = _S_IREAD | _S_IWRITE;
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statb->st_mode |= (statb->st_mode >> 3) | (statb->st_mode >> 6);
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if (wfad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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statb->st_mode |= _S_IFDIR;
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else
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statb->st_mode |= _S_IFREG;
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statb->st_nlink = 1;
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statb->st_uid = statb->st_gid = 0;
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statb->st_rdev = 0;
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if (wfad.nFileSizeHigh > 0)
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return -1;
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statb->st_size = wfad.nFileSizeLow;
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statb->st_atime = (*(INT64 *)&wfad.ftLastAccessTime)/10000000 - EPOCH_OFFSET;
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statb->st_mtime = (*(INT64 *)&wfad.ftLastWriteTime)/10000000 - EPOCH_OFFSET;
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statb->st_ctime = statb->st_mtime;
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return 0;
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}
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#else
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int
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FcStat (const FcChar8 *file, struct stat *statb)
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{
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return stat ((char *) file, statb);
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}
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#endif
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