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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 ae8d021598
commit 2bb22df838
2 changed files with 3 additions and 1 deletions
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2
compat/mingw.c
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@@ -790,6 +790,8 @@ static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
return do_lstat(follow, alt_name, buf);
}
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;

2
compat/mingw.h
View File

@@ -411,7 +411,7 @@ 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);