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cache: factor report functions

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to prepare for future addition
This commit is contained in:
David Teigland 2018-11-05 16:33:34 -06:00
parent a686391eca
commit e548e7c29d
1 changed files with 34 additions and 31 deletions
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65
lib/report/report.c
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@ -1424,14 +1424,19 @@ static int _cache_settings_disp(struct dm_report *rh, struct dm_pool *mem,
const void *data, void *private)
{
const struct lv_segment *seg = (const struct lv_segment *) data;
const struct lv_segment *setting_seg = NULL;
const struct dm_config_node *settings;
struct dm_list *result;
struct _str_list_append_baton baton;
struct dm_list dummy_list; /* dummy list to display "nothing" */
if (seg_is_cache(seg))
seg = first_seg(seg->pool_lv);
else if (!seg_is_cache_pool(seg)) {
if (seg_is_cache_pool(seg))
setting_seg = seg;
else if (seg_is_cache(seg))
setting_seg = first_seg(seg->pool_lv);
if (!setting_seg || !setting_seg->policy_settings) {
dm_list_init(&dummy_list);
return _field_set_string_list(rh, field, &dummy_list, private, 0, NULL);
/* TODO: once we have support for STR_LIST reserved values, replace with:
@ -1439,15 +1444,7 @@ static int _cache_settings_disp(struct dm_report *rh, struct dm_pool *mem,
*/
}
if (seg->policy_settings)
settings = seg->policy_settings->child;
else {
dm_list_init(&dummy_list);
return _field_set_string_list(rh, field, &dummy_list, private, 0, NULL);
/* TODO: once we have support for STR_LIST reserved values, replace with:
* return _field_set_value(field, GET_FIRST_RESERVED_NAME(cache_settings_undef), GET_FIELD_RESERVED_VALUE(cache_settings_undef));
*/
}
settings = setting_seg->policy_settings->child;
if (!(result = str_list_create(mem)))
return_0;
@ -1566,19 +1563,19 @@ static int _cache_policy_disp(struct dm_report *rh, struct dm_pool *mem,
const void *data, void *private)
{
const struct lv_segment *seg = (const struct lv_segment *) data;
const struct lv_segment *setting_seg = NULL;
if (seg_is_cache(seg))
seg = first_seg(seg->pool_lv);
else if (!seg_is_cache_pool(seg) || !seg->policy_name)
if (seg_is_cache_pool(seg))
setting_seg = seg;
else if (seg_is_cache(seg))
setting_seg = first_seg(seg->pool_lv);
if (!setting_seg || !setting_seg->policy_name)
return _field_set_value(field, GET_FIRST_RESERVED_NAME(cache_policy_undef),
GET_FIELD_RESERVED_VALUE(cache_policy_undef));
if (!seg->policy_name) {
log_error(INTERNAL_ERROR "Unexpected NULL policy name.");
return 0;
}
return _field_string(rh, field, seg->policy_name);
return _field_string(rh, field, setting_seg->policy_name);
}
static int _modules_disp(struct dm_report *rh, struct dm_pool *mem,
@ -2747,21 +2744,27 @@ static int _cachemetadataformat_disp(struct dm_report *rh, struct dm_pool *mem,
const void *data, void *private)
{
const struct lv_segment *seg = (const struct lv_segment *) data;
const struct lv_segment *setting_seg = NULL;
const uint64_t *fmt;
if (seg_is_cache(seg))
seg = first_seg(seg->pool_lv);
if (seg_is_cache_pool(seg))
setting_seg = seg;
if (seg_is_cache_pool(seg)) {
switch (seg->cache_metadata_format) {
case CACHE_METADATA_FORMAT_1:
case CACHE_METADATA_FORMAT_2:
fmt = (seg->cache_metadata_format == CACHE_METADATA_FORMAT_2) ? &_two64 : &_one64;
return dm_report_field_uint64(rh, field, fmt);
default: /* unselected/undefined for all other cases */;
}
else if (seg_is_cache(seg))
setting_seg = first_seg(seg->pool_lv);
else
goto undef;
switch (setting_seg->cache_metadata_format) {
case CACHE_METADATA_FORMAT_1:
case CACHE_METADATA_FORMAT_2:
fmt = (setting_seg->cache_metadata_format == CACHE_METADATA_FORMAT_2) ? &_two64 : &_one64;
return dm_report_field_uint64(rh, field, fmt);
default: /* unselected/undefined for all other cases */;
}
undef:
return _field_set_value(field, "", &GET_TYPE_RESERVED_VALUE(num_undef_64));
}