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Win32: make the lstat implementation pluggable

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Emulating the POSIX lstat API on Windows via GetFileAttributes[Ex] is quite
slow. Windows operating system APIs seem to be much better at scanning the
status of entire directories than checking single files. A caching
implementation may improve performance by bulk-reading entire directories
or reusing data obtained via opendir / readdir.

Make the lstat implementation pluggable so that it can be switched at
runtime, e.g. based on a config option.

Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Karsten Blees 2013-09-08 14:21:30 +02:00 committed by Johannes Schindelin
parent adb55cab7e
commit 3af31fe4ff
2 changed files with 3 additions and 1 deletions
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2
compat/mingw-posix.h
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@ -404,7 +404,7 @@ int mingw_fstat(int fd, struct stat *buf);
#ifdef lstat
#undef lstat
#endif
#define lstat mingw_lstat
extern int (*lstat)(const char *file_name, struct stat *buf);
int mingw_utime(const char *file_name, const struct utimbuf *times);

2
compat/mingw.c
View File

@ -1250,6 +1250,8 @@ int mingw_lstat(const char *file_name, struct stat *buf)
return -1;
}
int (*lstat)(const char *file_name, struct stat *buf) = mingw_lstat;
static int get_file_info_by_handle(HANDLE hnd, struct stat *buf)
{
BY_HANDLE_FILE_INFORMATION fdata;