/**
* Abort the scan. Must not be called from within the progress_callback
* function.
*
* @param ds directory scanner structure
*/
void
GNUNET_FS_directory_scan_abort (struct GNUNET_FS_DirScanner *ds)
{
/* terminate helper */
if (NULL != ds->helper)
GNUNET_HELPER_stop (ds->helper);
/* free resources */
if (NULL != ds->toplevel)
GNUNET_FS_share_tree_free (ds->toplevel);
if (GNUNET_SCHEDULER_NO_TASK != ds->stop_task)
GNUNET_SCHEDULER_cancel (ds->stop_task);
GNUNET_free_non_null (ds->ex_arg);
GNUNET_free (ds->filename_expanded);
GNUNET_free (ds);
}
/**
* Function called by the directory scanner as we extract keywords
* that we will need to remove UBlocks.
*
* @param cls the 'struct GNUNET_FS_UnindexContext *'
* @param filename which file we are making progress on
* @param is_directory #GNUNET_YES if this is a directory,
* #GNUNET_NO if this is a file
* #GNUNET_SYSERR if it is neither (or unknown)
* @param reason kind of progress we are making
*/
static void
unindex_directory_scan_cb (void *cls,
const char *filename,
int is_directory,
enum GNUNET_FS_DirScannerProgressUpdateReason reason)
{
struct GNUNET_FS_UnindexContext *uc = cls;
static struct GNUNET_FS_ShareTreeItem * directory_scan_result;
switch (reason)
{
case GNUNET_FS_DIRSCANNER_FINISHED:
directory_scan_result = GNUNET_FS_directory_scan_get_result (uc->dscan);
uc->dscan = NULL;
if (NULL != directory_scan_result->ksk_uri)
{
uc->ksk_uri = GNUNET_FS_uri_dup (directory_scan_result->ksk_uri);
uc->state = UNINDEX_STATE_DS_REMOVE_KBLOCKS;
GNUNET_FS_unindex_sync_ (uc);
GNUNET_FS_unindex_do_remove_kblocks_ (uc);
}
else
{
uc->emsg = GNUNET_strdup (_("Failed to get KSKs from directory scan."));
GNUNET_FS_unindex_sync_ (uc);
unindex_finish (uc);
}
GNUNET_FS_share_tree_free (directory_scan_result);
break;
case GNUNET_FS_DIRSCANNER_INTERNAL_ERROR:
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_("Internal error scanning `%s'.\n"),
uc->filename);
GNUNET_FS_directory_scan_abort (uc->dscan);
uc->dscan = NULL;
uc->emsg = GNUNET_strdup (_("Failed to get KSKs from directory scan."));
GNUNET_FS_unindex_sync_ (uc);
unindex_finish (uc);
break;
default:
break;
}
}
/**
* Release memory of a share item tree.
*
* @param toplevel toplevel of the tree to be freed
*/
void
GNUNET_FS_share_tree_free (struct GNUNET_FS_ShareTreeItem *toplevel)
{
struct GNUNET_FS_ShareTreeItem *pos;
while (NULL != (pos = toplevel->children_head))
GNUNET_FS_share_tree_free (pos);
if (NULL != toplevel->parent)
GNUNET_CONTAINER_DLL_remove (toplevel->parent->children_head,
toplevel->parent->children_tail,
toplevel);
if (NULL != toplevel->meta)
GNUNET_CONTAINER_meta_data_destroy (toplevel->meta);
if (NULL != toplevel->ksk_uri)
GNUNET_FS_uri_destroy (toplevel->ksk_uri);
GNUNET_free_non_null (toplevel->filename);
GNUNET_free_non_null (toplevel->short_filename);
GNUNET_free (toplevel);
}
