int
engine_set(uu_list_t *args)
{
uu_list_walk_t *walk;
string_list_t *slp;
if (uu_list_first(args) == NULL) {
/* Display current options. */
if (!g_verbose)
(void) fputs("no", stdout);
(void) puts("verbose");
return (0);
}
walk = uu_list_walk_start(args, UU_DEFAULT);
if (walk == NULL)
uu_die(gettext("Couldn't read arguments"));
/* Use getopt? */
for (slp = uu_list_walk_next(walk);
slp != NULL;
slp = uu_list_walk_next(walk)) {
if (slp->str[0] == '-') {
char *op;
for (op = &slp->str[1]; *op != '\0'; ++op) {
switch (*op) {
case 'v':
g_verbose = 1;
break;
case 'V':
g_verbose = 0;
break;
default:
warn(gettext("Unknown option -%c.\n"),
*op);
}
}
} else {
warn(gettext("No non-flag arguments defined.\n"));
}
}
return (0);
}
static void
zfs_purge_cases(fmd_hdl_t *hdl)
{
zfs_case_t *zcp;
uu_list_walk_t *walk;
libzfs_handle_t *zhdl = fmd_hdl_getspecific(hdl);
/*
* There is no way to open a pool by GUID, or lookup a vdev by GUID. No
* matter what we do, we're going to have to stomach an O(vdevs * cases)
* algorithm. In reality, both quantities are likely so small that
* neither will matter. Given that iterating over pools is more
* expensive than iterating over the in-memory case list, we opt for a
* 'present' flag in each case that starts off cleared. We then iterate
* over all pools, marking those that are still present, and removing
* those that aren't found.
*
* Note that we could also construct an FMRI and rely on
* fmd_nvl_fmri_present(), but this would end up doing the same search.
*/
/*
* Mark the cases as not present.
*/
for (zcp = uu_list_first(zfs_cases); zcp != NULL;
zcp = uu_list_next(zfs_cases, zcp))
zcp->zc_present = B_FALSE;
/*
* Iterate over all pools and mark the pools and vdevs found. If this
* fails (most probably because we're out of memory), then don't close
* any of the cases and we cannot be sure they are accurate.
*/
if (zpool_iter(zhdl, zfs_mark_pool, NULL) != 0)
return;
/*
* Remove those cases which were not found.
*/
walk = uu_list_walk_start(zfs_cases, UU_WALK_ROBUST);
while ((zcp = uu_list_walk_next(walk)) != NULL) {
if (!zcp->zc_present)
fmd_case_close(hdl, zcp->zc_case);
}
uu_list_walk_end(walk);
}
