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2003-09-17  Jakub Jelinek  <jakub@redhat.com>

	* dirent/scandir.c: Include bits/libc-lock.h.
	(struct scandir_cancel_struct): New type.
	(cancel_handler): New function.
	(SCANDIR): Add __libc_cleanup_{push,pop}, save state into
	scandir_cancel_struct.
This commit is contained in:
Ulrich Drepper 2003-09-17 01:19:43 +00:00
parent d0501a245c
commit 6e16ed887e
2 changed files with 49 additions and 10 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2003-09-17 Jakub Jelinek <jakub@redhat.com>
* dirent/scandir.c: Include bits/libc-lock.h.
(struct scandir_cancel_struct): New type.
(cancel_handler): New function.
(SCANDIR): Add __libc_cleanup_{push,pop}, save state into
scandir_cancel_struct.
2003-09-16 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/Dist: Remove internal_statvfs.c.

51
dirent/scandir.c
View File

@ -20,6 +20,7 @@
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <bits/libc-lock.h>
#ifndef SCANDIR
#define SCANDIR scandir
@ -27,6 +28,29 @@
#define DIRENT_TYPE struct dirent
#endif
#ifndef SCANDIR_CANCEL
#define SCANDIR_CANCEL
struct scandir_cancel_struct
{
DIR *dp;
void *v;
size_t cnt;
};
static void
cancel_handler (void *arg)
{
struct scandir_cancel_struct *cp = arg;
size_t i;
void **v = cp->v;
for (i = 0; i < cp->cnt; ++i)
free (v[i]);
free (v);
(void) __closedir (cp->dp);
}
#endif
int
SCANDIR (dir, namelist, select, cmp)
@ -37,7 +61,8 @@ SCANDIR (dir, namelist, select, cmp)
{
DIR *dp = __opendir (dir);
DIRENT_TYPE **v = NULL;
size_t vsize = 0, i;
size_t vsize = 0;
struct scandir_cancel_struct c;
DIRENT_TYPE *d;
int save;
@ -47,7 +72,11 @@ SCANDIR (dir, namelist, select, cmp)
save = errno;
__set_errno (0);
i = 0;
c.dp = dp;
c.v = NULL;
c.cnt = 0;
__libc_cleanup_push (cancel_handler, &c);
while ((d = READDIR (dp)) != NULL)
{
int use_it = select == NULL;
@ -69,7 +98,7 @@ SCANDIR (dir, namelist, select, cmp)
/* Ignore errors from select or readdir */
__set_errno (0);
if (__builtin_expect (i == vsize, 0))
if (__builtin_expect (c.cnt == vsize, 0))
{
DIRENT_TYPE **new;
if (vsize == 0)
@ -80,6 +109,7 @@ SCANDIR (dir, namelist, select, cmp)
if (new == NULL)
break;
v = new;
c.v = (void *) v;
}
dsize = &d->d_name[_D_ALLOC_NAMLEN (d)] - (char *) d;
@ -87,7 +117,7 @@ SCANDIR (dir, namelist, select, cmp)
if (vnew == NULL)
break;
v[i++] = (DIRENT_TYPE *) memcpy (vnew, d, dsize);
v[c.cnt++] = (DIRENT_TYPE *) memcpy (vnew, d, dsize);
}
}
@ -95,23 +125,24 @@ SCANDIR (dir, namelist, select, cmp)
{
save = errno;
while (i > 0)
free (v[--i]);
while (c.cnt > 0)
free (v[--c.cnt]);
free (v);
i = -1;
c.cnt = -1;
}
else
{
/* Sort the list if we have a comparison function to sort with. */
if (cmp != NULL)
qsort (v, i, sizeof (*v), cmp);
qsort (v, c.cnt, sizeof (*v), cmp);
*namelist = v;
}
__libc_cleanup_pop (0);
(void) __closedir (dp);
__set_errno (save);
return i;
return c.cnt;
}