static char *
tth_cache_pathname(const struct tth *tth)
{
const char *hash;
g_assert(tth);
hash = tth_base32(tth);
return h_strdup_printf("%s%c%2.2s%c%s",
tth_cache_directory(), G_DIR_SEPARATOR,
&hash[0], G_DIR_SEPARATOR, &hash[2]);
}
/**
* Main entry point for the thread that cleans up the TTH cache.
*/
static void *
tth_cache_cleanup_thread(void *unused_arg)
{
hset_t *shared;
const char *rootdir = tth_cache_directory();
pslist_t *dirstack;
uint32 flags;
ftw_status_t res;
(void) unused_arg;
if (!is_directory(rootdir))
goto done; /* No TTH cache */
/*
* First pass: spot all file entries that are older than our start
* time (i.e. were created in another session) and which cannot be
* associated with a shared file.
*/
shared = share_tthset_get();
flags = FTW_O_PHYS | FTW_O_MOUNT | FTW_O_ALL;
res = ftw_foreach(rootdir, flags, 0, tth_cache_cleanup_unlink, shared);
share_tthset_free(shared);
if (res != FTW_STATUS_OK) {
g_warning("%s(): initial traversal failed with %d, aborting",
G_STRFUNC, res);
goto done;
}
/*
* Second pass: spot empty directories and remove them.
*/
flags |= FTW_O_ENTRY | FTW_O_DEPTH;
dirstack = NULL;
(void) ftw_foreach(rootdir, flags, 0, tth_cache_cleanup_rmdir, &dirstack);
pslist_free(dirstack);
/* FALL THROUGH */
done:
atomic_int_dec(&tth_cache_cleanups);
return NULL;
}