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Speed up most calls to 'stat' and 'lstat' on MS-Windows.

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src/w32.c (stat_worker): If w32_stat_get_owner_group is zero, do not
 try to get accurate owner and group information from NT file
 security APIs.  This is to make most callers of 'stat' and
 'lstat', which don't need that information, much faster.
 src/dired.c (Ffile_attributes) [WINDOWSNT]: Set
 w32_stat_get_owner_group to a non-zero value, to request accurate
 owner and group information from 'lstat'.

 nt/inc/sys/stat.h: Declare w32_stat_get_owner_group.
This commit is contained in:
Eli Zaretskii 2012-12-14 16:05:01 +02:00
parent b421decc52
commit 5c207910c4
5 changed files with 60 additions and 16 deletions
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4
nt/inc/sys/stat.h
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@ -98,6 +98,10 @@ struct stat {
char st_gname[260];
};
/* Internal variable for asking 'stat'/'lstat' to produce accurate
info about owner and group of files. */
extern int w32_stat_get_owner_group;
/* Prevent redefinition by other headers, e.g. wchar.h. */
#define _STAT_DEFINED