From 3af31fe4ff2eb4c9fc6fb442fa7bae9df8fa1300 Mon Sep 17 00:00:00 2001 From: Karsten Blees Date: Sun, 8 Sep 2013 14:21:30 +0200 Subject: [PATCH] Win32: make the lstat implementation pluggable 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 Signed-off-by: Johannes Schindelin --- compat/mingw-posix.h | 2 +- compat/mingw.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/compat/mingw-posix.h b/compat/mingw-posix.h index 2362ce6897..1a917890b1 100644 --- a/compat/mingw-posix.h +++ b/compat/mingw-posix.h @@ -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); diff --git a/compat/mingw.c b/compat/mingw.c index 2718d5fa5d..5353a6e15e 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -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;