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extfs: refactoring: use GSList to store archive list.

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Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This commit is contained in:
Andrew Borodin 2018-03-01 13:58:45 +03:00
parent 2d58e4d624
commit 7f9fb38176
1 changed files with 48 additions and 52 deletions
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100
src/vfs/extfs/extfs.c
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@ -122,7 +122,6 @@ struct archive
int fd_usage;
ino_t inode_counter;
struct entry *root_entry;
struct archive *next;
};
typedef struct
@ -142,9 +141,10 @@ static gboolean notadir;
static struct vfs_s_subclass extfs_subclass;
static struct vfs_class *vfs_extfs_ops = (struct vfs_class *) &extfs_subclass;
static struct archive *first_archive = NULL;
static GSList *first_archive = NULL;
static int my_errno = 0;
/* --------------------------------------------------------------------------------------------- */
/*** file scope functions ************************************************************************/
/* --------------------------------------------------------------------------------------------- */
@ -155,6 +155,35 @@ static struct entry *extfs_resolve_symlinks_int (struct entry *entry, GSList * l
/* --------------------------------------------------------------------------------------------- */
static void
extfs_fill_name (void *data, void *user_data)
{
struct archive *a = (struct archive *) data;
fill_names_f func = (fill_names_f) user_data;
extfs_plugin_info_t *info;
char *name;
info = &g_array_index (extfs_plugins, extfs_plugin_info_t, a->fstype);
name =
g_strconcat (a->name != NULL ? a->name : "", PATH_SEP_STR, info->prefix,
VFS_PATH_URL_DELIMITER, (char *) NULL);
func (name);
g_free (name);
}
/* --------------------------------------------------------------------------------------------- */
static gint
extfs_cmp_archive (const void *a, const void *b)
{
const struct archive *ar = (const struct archive *) a;
const char *archive_name = (const char *) b;
return (ar->name != NULL && strcmp (ar->name, archive_name) == 0) ? 0 : 1;
}
/* --------------------------------------------------------------------------------------------- */
static void
extfs_make_dots (struct entry *ent)
{
@ -349,23 +378,9 @@ extfs_find_entry (struct entry *dir, const char *name, gboolean make_dirs, gbool
static void
extfs_fill_names (struct vfs_class *me, fill_names_f func)
{
struct archive *a = first_archive;
(void) me;
while (a != NULL)
{
extfs_plugin_info_t *info;
char *name;
info = &g_array_index (extfs_plugins, extfs_plugin_info_t, a->fstype);
name =
g_strconcat (a->name ? a->name : "", PATH_SEP_STR, info->prefix, VFS_PATH_URL_DELIMITER,
(char *) NULL);
func (name);
g_free (name);
a = a->next;
}
g_slist_foreach (first_archive, extfs_fill_name, func);
}
/* --------------------------------------------------------------------------------------------- */
@ -374,6 +389,7 @@ static void
extfs_free_archive (struct archive *archive)
{
extfs_free_entry (archive->root_entry);
if (archive->local_name != NULL)
{
struct stat my;
@ -463,8 +479,7 @@ extfs_open_archive (int fstype, const char *name, struct archive **pparc)
current_archive->inode_counter = 0;
current_archive->fd_usage = 0;
current_archive->rdev = archive_counter++;
current_archive->next = first_archive;
first_archive = current_archive;
first_archive = g_slist_prepend (first_archive, current_archive);
mode = mystat.st_mode & 07777;
if (mode & 0400)
mode |= 0100;
@ -671,9 +686,10 @@ extfs_get_path_int (const vfs_path_t * vpath, struct archive **archive, gboolean
{
char *archive_name;
int result = -1;
struct archive *parc;
GSList *parc;
int fstype;
const vfs_path_element_t *path_element;
struct archive *a = NULL;
path_element = vfs_path_get_by_index (vpath, -1);
@ -687,18 +703,16 @@ extfs_get_path_int (const vfs_path_t * vpath, struct archive **archive, gboolean
* All filesystems should have some local archive, at least
* it can be PATH_SEP ('/').
*/
for (parc = first_archive; parc != NULL; parc = parc->next)
if (parc->name != NULL)
{
if (strcmp (parc->name, archive_name) == 0)
{
vfs_stamp (vfs_extfs_ops, (vfsid) parc);
g_free (archive_name);
goto return_success;
}
}
parc = g_slist_find_custom (first_archive, archive_name, extfs_cmp_archive);
if (parc != NULL)
{
a = (struct archive *) parc->data;
vfs_stamp (vfs_extfs_ops, (vfsid) a);
g_free (archive_name);
goto return_success;
}
result = do_not_open ? -1 : extfs_read_archive (fstype, archive_name, &parc);
result = do_not_open ? -1 : extfs_read_archive (fstype, archive_name, &a);
g_free (archive_name);
if (result == -1)
{
@ -707,7 +721,7 @@ extfs_get_path_int (const vfs_path_t * vpath, struct archive **archive, gboolean
}
return_success:
*archive = parc;
*archive = a;
return path_element->path;
}
@ -1491,20 +1505,7 @@ extfs_free (vfsid id)
{
struct archive *archive = (struct archive *) id;
if (archive == first_archive)
{
first_archive = archive->next;
}
else
{
struct archive *parc;
for (parc = first_archive; parc != NULL; parc = parc->next)
if (parc->next == archive)
{
parc->next = archive->next;
break;
}
}
first_archive = g_slist_remove (first_archive, archive);
extfs_free_archive (archive);
}
@ -1680,15 +1681,10 @@ static void
extfs_done (struct vfs_class *me)
{
size_t i;
struct archive *ar;
(void) me;
for (ar = first_archive; ar != NULL;)
{
extfs_free ((vfsid) ar);
ar = first_archive;
}
g_slist_free_full (first_archive, (GDestroyNotify) extfs_free_archive);
if (extfs_plugins == NULL)
return;