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libdm: report: add dm_report_set_selection

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Since we can do repeated dm_report_output calls now, we also like
to be able to set selection for each of these outputs.
This commit is contained in:
Peter Rajnoha 2016-05-12 15:04:37 +02:00
parent f2facdc1d0
commit 2078b842fb
4 changed files with 97 additions and 31 deletions
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1
WHATS_NEW_DM
View File

@ -1,5 +1,6 @@
Version 1.02.128 -
=================================
Add dm_report_set_selection to set selection for multiple output of report.
Add DM_REPORT_OUTPUT_MULTIPLE_TIMES flag for multiple output of same report.
Move field width handling/sort init from dm_report_object to dm_report_output.
Add _LOG_BYPASS_REPORT flag for bypassing any log report currently set.

1
libdm/.exported_symbols.DM_1_02_128
View File

@ -2,3 +2,4 @@ dm_report_group_create
dm_report_group_push
dm_report_group_pop
dm_report_group_destroy
dm_report_set_selection

2
libdm/libdevmapper.h
View File

@ -2675,6 +2675,8 @@ void dm_report_free(struct dm_report *rh);
int dm_report_set_output_field_name_prefix(struct dm_report *rh,
const char *report_prefix);
int dm_report_set_selection(struct dm_report *rh, const char *selection);
/*
* Report functions are provided for simple data types.
* They take care of allocating copies of the data.

120
libdm/libdm-report.c
View File

@ -30,6 +30,7 @@
struct selection {
struct dm_pool *mem;
struct selection_node *selection_root;
int add_new_fields;
};
struct report_group_item;
@ -1900,7 +1901,7 @@ static int _check_selection(struct dm_report *rh, struct selection_node *sn,
static int _check_report_selection(struct dm_report *rh, struct dm_list *fields)
{
if (!rh->selection)
if (!rh->selection || !rh->selection->selection_root)
return 1;
return _check_selection(rh, rh->selection->selection_root, fields);
@ -3422,9 +3423,17 @@ static struct field_selection *_create_field_selection(struct dm_report *rh,
/* The field is neither used in display options nor sort keys. */
if (!found) {
if (rh->selection->add_new_fields) {
if (!(found = _add_field(rh, field_num, implicit, FLD_HIDDEN)))
return NULL;
rh->report_types |= fields[field_num].type;
} else {
log_error("Unable to create selection with field \'%s\' "
"which is not included in current report.",
implicit ? _implicit_report_fields[field_num].id
: rh->fields[field_num].id);
return NULL;
}
}
field_id = fields[found->field_num].id;
@ -3962,6 +3971,86 @@ error:
return NULL;
}
static int _alloc_rh_selection(struct dm_report *rh)
{
if (!(rh->selection = dm_pool_zalloc(rh->mem, sizeof(struct selection))) ||
!(rh->selection->mem = dm_pool_create("report selection", 10 * 1024))) {
log_error("Failed to allocate report selection structure.");
if (rh->selection)
dm_pool_free(rh->mem, rh->selection);
return 0;
}
return 1;
}
static int _report_set_selection(struct dm_report *rh, const char *selection, int add_new_fields)
{
struct selection_node *root = NULL;
const char *fin, *next;
if (rh->selection) {
if (rh->selection->selection_root)
/* Trash any previous selection. */
dm_pool_free(rh->selection->mem, rh->selection->selection_root);
rh->selection->selection_root = NULL;
} else {
if (!_alloc_rh_selection(rh))
goto_bad;
}
if (!selection)
return 1;
rh->selection->add_new_fields = add_new_fields;
if (!(root = _alloc_selection_node(rh->selection->mem, SEL_OR)))
return 0;
if (!_parse_or_ex(rh, selection, &fin, root))
goto_bad;
next = _skip_space(fin);
if (*next) {
log_error("Expecting logical operator");
log_error(_sel_syntax_error_at_msg, next);
log_error(_sel_help_ref_msg);
goto bad;
}
rh->selection->selection_root = root;
return 1;
bad:
dm_pool_free(rh->selection->mem, root);
return 0;
}
static void _reset_field_props(struct dm_report *rh)
{
struct field_properties *fp;
dm_list_iterate_items(fp, &rh->field_props)
fp->width = fp->initial_width;
}
int dm_report_set_selection(struct dm_report *rh, const char *selection)
{
struct row *row;
if (!_report_set_selection(rh, selection, 0))
return_0;
_reset_field_props(rh);
dm_list_iterate_items(row, &rh->rows) {
row->selected = _check_report_selection(rh, &row->fields);
if (row->field_sel_status)
_implicit_report_fields[row->field_sel_status->props->field_num].report_fn(rh,
rh->mem, row->field_sel_status, row, rh->private);
}
return 1;
}
struct dm_report *dm_report_init_with_selection(uint32_t *report_types,
const struct dm_report_object_type *types,
const struct dm_report_field_type *fields,
@ -3974,8 +4063,6 @@ struct dm_report *dm_report_init_with_selection(uint32_t *report_types,
void *private_data)
{
struct dm_report *rh;
struct selection_node *root = NULL;
const char *fin, *next;
_implicit_report_fields = _implicit_special_report_fields_with_selection;
@ -4005,29 +4092,11 @@ struct dm_report *dm_report_init_with_selection(uint32_t *report_types,
return rh;
}
if (!(rh->selection = dm_pool_zalloc(rh->mem, sizeof(struct selection))) ||
!(rh->selection->mem = dm_pool_create("report selection", 10 * 1024))) {
log_error("Failed to allocate report selection structure.");
goto bad;
}
if (!(root = _alloc_selection_node(rh->selection->mem, SEL_OR)))
if (!_report_set_selection(rh, selection, 1))
goto_bad;
if (!_parse_or_ex(rh, selection, &fin, root))
goto_bad;
next = _skip_space(fin);
if (*next) {
log_error("Expecting logical operator");
log_error(_sel_syntax_error_at_msg, next);
log_error(_sel_help_ref_msg);
goto bad;
}
_dm_report_init_update_types(rh, report_types);
rh->selection->selection_root = root;
return rh;
bad:
dm_report_free(rh);
@ -4351,13 +4420,6 @@ bad:
return 0;
}
static void _reset_field_props(struct dm_report *rh)
{
struct field_properties *fp;
dm_list_iterate_items(fp, &rh->field_props)
fp->width = fp->initial_width;
}
static void _destroy_rows(struct dm_report *rh)
{
/*