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group.c
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/*
* Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <lha_internal.h>
#include <crm/pengine/status.h>
#include <unpack.h>
#include <utils.h>
#include <crm/msg_xml.h>
#include <clplumbing/cl_misc.h>
#define VARIANT_GROUP 1
#include <lib/crm/pengine/variant.h>
gboolean group_unpack(resource_t *rsc, pe_working_set_t *data_set)
{
resource_t *self = NULL;
crm_data_t *xml_obj = rsc->xml;
crm_data_t *xml_self = copy_xml(rsc->xml);
group_variant_data_t *group_data = NULL;
const char *group_ordered = g_hash_table_lookup(
rsc->meta, XML_RSC_ATTR_ORDERED);
const char *group_colocated = g_hash_table_lookup(
rsc->meta, "collocated");
const char *clone_id = NULL;
crm_debug_3("Processing resource %s...", rsc->id);
crm_malloc0(group_data, sizeof(group_variant_data_t));
group_data->num_children = 0;
group_data->self = NULL;
group_data->first_child = NULL;
group_data->last_child = NULL;
rsc->variant_opaque = group_data;
group_data->ordered = TRUE;
group_data->colocated = TRUE;
if(group_ordered != NULL) {
cl_str_to_boolean(group_ordered, &(group_data->ordered));
}
if(group_colocated != NULL) {
cl_str_to_boolean(group_colocated, &(group_data->colocated));
}
/* this is a bit of a hack - but simplifies everything else */
ha_msg_mod(xml_self, F_XML_TAGNAME, XML_CIB_TAG_RESOURCE);
if(common_unpack(xml_self, &self, NULL, data_set)) {
group_data->self = self;
self->restart_type = pe_restart_restart;
} else {
crm_log_xml_err(xml_self, "Couldnt unpack dummy child");
return FALSE;
}
clone_id = crm_element_value(rsc->xml, XML_RSC_ATTR_INCARNATION);
xml_child_iter_filter(
xml_obj, xml_native_rsc, XML_CIB_TAG_RESOURCE,
resource_t *new_rsc = NULL;
crm_xml_add(xml_native_rsc, XML_RSC_ATTR_INCARNATION, clone_id);
if(common_unpack(xml_native_rsc, &new_rsc,
rsc, data_set) == FALSE) {
pe_err("Failed unpacking resource %s",
crm_element_value(xml_obj, XML_ATTR_ID));
if(new_rsc != NULL && new_rsc->fns != NULL) {
new_rsc->fns->free(new_rsc);
}
}
group_data->num_children++;
rsc->children = g_list_append(rsc->children, new_rsc);
if(group_data->first_child == NULL) {
group_data->first_child = new_rsc;
}
group_data->last_child = new_rsc;
print_resource(LOG_DEBUG_3, "Added", new_rsc, FALSE);
);
if(group_data->num_children == 0) {
#if 0
/* Bug #1287 */
crm_config_err("Group %s did not have any children", rsc->id);
return FALSE;
#else
crm_config_warn("Group %s did not have any children", rsc->id);
return TRUE;
#endif
}
crm_debug_3("Added %d children to resource %s...",
group_data->num_children, rsc->id);
return TRUE;
}
gboolean group_active(resource_t *rsc, gboolean all)
{
group_variant_data_t *group_data = NULL;
get_group_variant_data(group_data, rsc);
slist_iter(
child_rsc, resource_t, rsc->children, lpc,
gboolean child_active = child_rsc->fns->active(child_rsc, all);
if(all == FALSE && child_active) {
return TRUE;
} else if(child_active == FALSE) {
return FALSE;
}
);
if(all) {
return TRUE;
} else {
return FALSE;
}
}
void group_print(
resource_t *rsc, const char *pre_text, long options, void *print_data)
{
const char *child_text = NULL;
group_variant_data_t *group_data = NULL;
get_group_variant_data(group_data, rsc);
if(pre_text != NULL) {
child_text = " ";
} else {
child_text = " ";
}
status_print("%sResource Group: %s",
pre_text?pre_text:"", rsc->id);
if(options & pe_print_html) {
status_print("\n<ul>\n");
} else if((options & pe_print_log) == 0) {
status_print("\n");
}
slist_iter(
child_rsc, resource_t, rsc->children, lpc,
if(options & pe_print_html) {
status_print("<li>\n");
}
child_rsc->fns->print(
child_rsc, child_text, options, print_data);
if(options & pe_print_html) {
status_print("</li>\n");
}
);
if(options & pe_print_html) {
status_print("</ul>\n");
}
}
void group_free(resource_t *rsc)
{
group_variant_data_t *group_data = NULL;
CRM_CHECK(rsc != NULL, return);
get_group_variant_data(group_data, rsc);
crm_debug_3("Freeing %s", rsc->id);
slist_iter(
child_rsc, resource_t, rsc->children, lpc,
crm_debug_3("Freeing child %s", child_rsc->id);
child_rsc->fns->free(child_rsc);
);
crm_debug_3("Freeing child list");
pe_free_shallow_adv(rsc->children, FALSE);
if(group_data->self != NULL) {
free_xml(group_data->self->xml);
group_data->self->fns->free(group_data->self);
}
common_free(rsc);
}
enum rsc_role_e
group_resource_state(resource_t *rsc, gboolean current)
{
enum rsc_role_e group_role = RSC_ROLE_UNKNOWN;
slist_iter(
child_rsc, resource_t, rsc->children, lpc,
enum rsc_role_e role = child_rsc->fns->state(child_rsc, current);
if(role > group_role) {
group_role = role;
}
if(child_rsc->failed) {
rsc->failed = TRUE;
}
);
crm_warn("%s role: %s", rsc->id, role2text(group_role));
return group_role;
}

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