utils.c
No OneTemporary
Actions

Size

28 KB

Referenced Files

None

Subscribers

None

utils.c
View Options

	/*
	* Copyright 2004-2024 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* This source code is licensed under the GNU Lesser General Public License
	* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>

	#include <glib.h>
	#include <stdbool.h>

	#include <crm/crm.h>
	#include <crm/common/xml.h>
	#include <crm/pengine/rules.h>
	#include <crm/pengine/internal.h>

	#include "pe_status_private.h"

	extern bool pcmk__is_daemon;

	gboolean ghash_free_str_str(gpointer key, gpointer value, gpointer user_data);

	/*!
	* \internal
	* \brief Check whether we can fence a particular node
	*
	* \param[in] scheduler Scheduler data
	* \param[in] node Name of node to check
	*
	* \return true if node can be fenced, false otherwise
	*/
	bool
	pe_can_fence(const pcmk_scheduler_t scheduler, const pcmk_node_t node)
	{
	if (pcmk__is_guest_or_bundle_node(node)) {
	/* Guest nodes are fenced by stopping their container resource. We can
	* do that if the container's host is either online or fenceable.
	*/
	pcmk_resource_t *rsc = node->details->remote_rsc->container;

	for (GList *n = rsc->running_on; n != NULL; n = n->next) {
	pcmk_node_t *container_node = n->data;

	if (!container_node->details->online
	&& !pe_can_fence(scheduler, container_node)) {
	return false;
	}
	}
	return true;

	} else if (!pcmk_is_set(scheduler->flags, pcmk_sched_fencing_enabled)) {
	return false; /* Turned off */

	} else if (!pcmk_is_set(scheduler->flags, pcmk_sched_have_fencing)) {
	return false; /* No devices */

	} else if (pcmk_is_set(scheduler->flags, pcmk_sched_quorate)) {
	return true;

	} else if (scheduler->no_quorum_policy == pcmk_no_quorum_ignore) {
	return true;

	} else if(node == NULL) {
	return false;

	} else if(node->details->online) {
	crm_notice("We can fence %s without quorum because they're in our membership",
	pcmk__node_name(node));
	return true;
	}

	crm_trace("Cannot fence %s", pcmk__node_name(node));
	return false;
	}

	/*!
	* \internal
	* \brief Copy a node object
	*
	* \param[in] this_node Node object to copy
	*
	* \return Newly allocated shallow copy of this_node
	* \note This function asserts on errors and is guaranteed to return non-NULL.
	*/
	pcmk_node_t *
	pe__copy_node(const pcmk_node_t *this_node)
	{
	pcmk_node_t *new_node = NULL;

	CRM_ASSERT(this_node != NULL);

	new_node = calloc(1, sizeof(pcmk_node_t));
	CRM_ASSERT(new_node != NULL);

	new_node->rsc_discover_mode = this_node->rsc_discover_mode;
	new_node->weight = this_node->weight;
	new_node->fixed = this_node->fixed; // @COMPAT deprecated and unused
	new_node->count = this_node->count;
	new_node->details = this_node->details;

	return new_node;
	}

	/*!
	* \internal
	* \brief Create a node hash table from a node list
	*
	* \param[in] list Node list
	*
	* \return Hash table equivalent of node list
	*/
	GHashTable *
	pe__node_list2table(const GList *list)
	{
	GHashTable *result = NULL;

	result = pcmk__strkey_table(NULL, free);
	for (const GList *gIter = list; gIter != NULL; gIter = gIter->next) {
	pcmk_node_t *new_node = NULL;

	new_node = pe__copy_node((const pcmk_node_t *) gIter->data);
	g_hash_table_insert(result, (gpointer) new_node->details->id, new_node);
	}
	return result;
	}

	/*!
	* \internal
	* \brief Compare two nodes by name, with numeric portions sorted numerically
	*
	* Sort two node names case-insensitively like strcasecmp(), but with any
	* numeric portions of the name sorted numerically. For example, "node10" will
	* sort higher than "node9" but lower than "remotenode9".
	*
	* \param[in] a First node to compare (can be \c NULL)
	* \param[in] b Second node to compare (can be \c NULL)
	*
	* \retval -1 \c a comes before \c b (or \c a is \c NULL and \c b is not)
	* \retval 0 \c a and \c b are equal (or both are \c NULL)
	* \retval 1 \c a comes after \c b (or \c b is \c NULL and \c a is not)
	*/
	gint
	pe__cmp_node_name(gconstpointer a, gconstpointer b)
	{
	const pcmk_node_t node1 = (const pcmk_node_t ) a;
	const pcmk_node_t node2 = (const pcmk_node_t ) b;

	if ((node1 == NULL) && (node2 == NULL)) {
	return 0;
	}

	if (node1 == NULL) {
	return -1;
	}

	if (node2 == NULL) {
	return 1;
	}

	return pcmk__numeric_strcasecmp(node1->details->uname,
	node2->details->uname);
	}

	/*!
	* \internal
	* \brief Output node weights to stdout
	*
	* \param[in] rsc Use allowed nodes for this resource
	* \param[in] comment Text description to prefix lines with
	* \param[in] nodes If rsc is not specified, use these nodes
	* \param[in,out] scheduler Scheduler data
	*/
	static void
	pe__output_node_weights(const pcmk_resource_t rsc, const char comment,
	GHashTable nodes, pcmk_scheduler_t scheduler)
	{
	pcmk__output_t *out = scheduler->priv;

	// Sort the nodes so the output is consistent for regression tests
	GList *list = g_list_sort(g_hash_table_get_values(nodes),
	pe__cmp_node_name);

	for (const GList *gIter = list; gIter != NULL; gIter = gIter->next) {
	const pcmk_node_t node = (const pcmk_node_t ) gIter->data;

	out->message(out, "node-weight", rsc, comment, node->details->uname,
	pcmk_readable_score(node->weight));
	}
	g_list_free(list);
	}

	/*!
	* \internal
	* \brief Log node weights at trace level
	*
	* \param[in] file Caller's filename
	* \param[in] function Caller's function name
	* \param[in] line Caller's line number
	* \param[in] rsc If not NULL, include this resource's ID in logs
	* \param[in] comment Text description to prefix lines with
	* \param[in] nodes Nodes whose scores should be logged
	*/
	static void
	pe__log_node_weights(const char file, const char function, int line,
	const pcmk_resource_t rsc, const char comment,
	GHashTable *nodes)
	{
	GHashTableIter iter;
	pcmk_node_t *node = NULL;

	// Don't waste time if we're not tracing at this point
	pcmk__if_tracing({}, return);

	g_hash_table_iter_init(&iter, nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **) &node)) {
	if (rsc) {
	qb_log_from_external_source(function, file,
	"%s: %s allocation score on %s: %s",
	LOG_TRACE, line, 0,
	comment, rsc->id,
	pcmk__node_name(node),
	pcmk_readable_score(node->weight));
	} else {
	qb_log_from_external_source(function, file, "%s: %s = %s",
	LOG_TRACE, line, 0,
	comment, pcmk__node_name(node),
	pcmk_readable_score(node->weight));
	}
	}
	}

	/*!
	* \internal
	* \brief Log or output node weights
	*
	* \param[in] file Caller's filename
	* \param[in] function Caller's function name
	* \param[in] line Caller's line number
	* \param[in] to_log Log if true, otherwise output
	* \param[in] rsc If not NULL, use this resource's ID in logs,
	* and show scores recursively for any children
	* \param[in] comment Text description to prefix lines with
	* \param[in] nodes Nodes whose scores should be shown
	* \param[in,out] scheduler Scheduler data
	*/
	void
	pe__show_node_scores_as(const char file, const char function, int line,
	bool to_log, const pcmk_resource_t *rsc,
	const char comment, GHashTable nodes,
	pcmk_scheduler_t *scheduler)
	{
	if ((rsc != NULL) && pcmk_is_set(rsc->flags, pcmk_rsc_removed)) {
	// Don't show allocation scores for orphans
	return;
	}
	if (nodes == NULL) {
	// Nothing to show
	return;
	}

	if (to_log) {
	pe__log_node_weights(file, function, line, rsc, comment, nodes);
	} else {
	pe__output_node_weights(rsc, comment, nodes, scheduler);
	}

	// If this resource has children, repeat recursively for each
	if (rsc && rsc->children) {
	for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
	pcmk_resource_t child = (pcmk_resource_t ) gIter->data;

	pe__show_node_scores_as(file, function, line, to_log, child,
	comment, child->allowed_nodes, scheduler);
	}
	}
	}

	/*!
	* \internal
	* \brief Compare two resources by priority
	*
	* \param[in] a First resource to compare (can be \c NULL)
	* \param[in] b Second resource to compare (can be \c NULL)
	*
	* \retval -1 \c a->priority > \c b->priority (or \c b is \c NULL and \c a is
	* not)
	* \retval 0 \c a->priority == \c b->priority (or both \c a and \c b are
	* \c NULL)
	* \retval 1 \c a->priority < \c b->priority (or \c a is \c NULL and \c b is
	* not)
	*/
	gint
	pe__cmp_rsc_priority(gconstpointer a, gconstpointer b)
	{
	const pcmk_resource_t resource1 = (const pcmk_resource_t )a;
	const pcmk_resource_t resource2 = (const pcmk_resource_t )b;

	if (a == NULL && b == NULL) {
	return 0;
	}
	if (a == NULL) {
	return 1;
	}
	if (b == NULL) {
	return -1;
	}

	if (resource1->priority > resource2->priority) {
	return -1;
	}

	if (resource1->priority < resource2->priority) {
	return 1;
	}

	return 0;
	}

	static void
	resource_node_score(pcmk_resource_t rsc, const pcmk_node_t node, int score,
	const char *tag)
	{
	pcmk_node_t *match = NULL;

	if ((rsc->exclusive_discover
	\|\| (node->rsc_discover_mode == pcmk_probe_never))
	&& pcmk__str_eq(tag, "symmetric_default", pcmk__str_casei)) {
	/* This string comparision may be fragile, but exclusive resources and
	* exclusive nodes should not have the symmetric_default constraint
	* applied to them.
	*/
	return;

	} else if (rsc->children) {
	GList *gIter = rsc->children;

	for (; gIter != NULL; gIter = gIter->next) {
	pcmk_resource_t child_rsc = (pcmk_resource_t ) gIter->data;

	resource_node_score(child_rsc, node, score, tag);
	}
	}

	match = g_hash_table_lookup(rsc->allowed_nodes, node->details->id);
	if (match == NULL) {
	match = pe__copy_node(node);
	g_hash_table_insert(rsc->allowed_nodes, (gpointer) match->details->id, match);
	}
	match->weight = pcmk__add_scores(match->weight, score);
	pcmk__rsc_trace(rsc,
	"Enabling %s preference (%s) for %s on %s (now %s)",
	tag, pcmk_readable_score(score), rsc->id,
	pcmk__node_name(node), pcmk_readable_score(match->weight));
	}

	void
	resource_location(pcmk_resource_t rsc, const pcmk_node_t node, int score,
	const char tag, pcmk_scheduler_t scheduler)
	{
	if (node != NULL) {
	resource_node_score(rsc, node, score, tag);

	} else if (scheduler != NULL) {
	GList *gIter = scheduler->nodes;

	for (; gIter != NULL; gIter = gIter->next) {
	pcmk_node_t node_iter = (pcmk_node_t ) gIter->data;

	resource_node_score(rsc, node_iter, score, tag);
	}

	} else {
	GHashTableIter iter;
	pcmk_node_t *node_iter = NULL;

	g_hash_table_iter_init(&iter, rsc->allowed_nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **)&node_iter)) {
	resource_node_score(rsc, node_iter, score, tag);
	}
	}

	if (node == NULL && score == -INFINITY) {
	if (rsc->allocated_to) {
	crm_info("Deallocating %s from %s",
	rsc->id, pcmk__node_name(rsc->allocated_to));
	free(rsc->allocated_to);
	rsc->allocated_to = NULL;
	}
	}
	}

	time_t
	get_effective_time(pcmk_scheduler_t *scheduler)
	{
	if(scheduler) {
	if (scheduler->now == NULL) {
	crm_trace("Recording a new 'now'");
	scheduler->now = crm_time_new(NULL);
	}
	return crm_time_get_seconds_since_epoch(scheduler->now);
	}

	crm_trace("Defaulting to 'now'");
	return time(NULL);
	}

	gboolean
	get_target_role(const pcmk_resource_t rsc, enum rsc_role_e role)
	{
	enum rsc_role_e local_role = pcmk_role_unknown;
	const char *value = g_hash_table_lookup(rsc->meta, PCMK_META_TARGET_ROLE);

	CRM_CHECK(role != NULL, return FALSE);

	if (pcmk__str_eq(value, "started", pcmk__str_null_matches \| pcmk__str_casei)
	\|\| pcmk__str_eq(PCMK_VALUE_DEFAULT, value, pcmk__str_casei)) {
	return FALSE;
	}

	local_role = pcmk_parse_role(value);
	if (local_role == pcmk_role_unknown) {
	pcmk__config_err("Ignoring '" PCMK_META_TARGET_ROLE "' for %s "
	"because '%s' is not valid", rsc->id, value);
	return FALSE;

	} else if (local_role > pcmk_role_started) {
	if (pcmk_is_set(pe__const_top_resource(rsc, false)->flags,
	pcmk_rsc_promotable)) {
	if (local_role > pcmk_role_unpromoted) {
	/* This is what we'd do anyway, just leave the default to avoid messing up the placement algorithm */
	return FALSE;
	}

	} else {
	pcmk__config_err("Ignoring '" PCMK_META_TARGET_ROLE "' for %s "
	"because '%s' only makes sense for promotable "
	"clones", rsc->id, value);
	return FALSE;
	}
	}

	*role = local_role;
	return TRUE;
	}

	gboolean
	order_actions(pcmk_action_t lh_action, pcmk_action_t rh_action,
	uint32_t flags)
	{
	GList *gIter = NULL;
	pcmk__related_action_t *wrapper = NULL;
	GList *list = NULL;

	if (flags == pcmk__ar_none) {
	return FALSE;
	}

	if (lh_action == NULL \|\| rh_action == NULL) {
	return FALSE;
	}

	crm_trace("Creating action wrappers for ordering: %s then %s",
	lh_action->uuid, rh_action->uuid);

	/* Ensure we never create a dependency on ourselves... it's happened */
	CRM_ASSERT(lh_action != rh_action);

	/* Filter dups, otherwise update_action_states() has too much work to do */
	gIter = lh_action->actions_after;
	for (; gIter != NULL; gIter = gIter->next) {
	pcmk__related_action_t *after = gIter->data;

	if (after->action == rh_action && (after->type & flags)) {
	return FALSE;
	}
	}

	wrapper = calloc(1, sizeof(pcmk__related_action_t));
	wrapper->action = rh_action;
	wrapper->type = flags;
	list = lh_action->actions_after;
	list = g_list_prepend(list, wrapper);
	lh_action->actions_after = list;

	wrapper = calloc(1, sizeof(pcmk__related_action_t));
	wrapper->action = lh_action;
	wrapper->type = flags;
	list = rh_action->actions_before;
	list = g_list_prepend(list, wrapper);
	rh_action->actions_before = list;
	return TRUE;
	}

	void
	destroy_ticket(gpointer data)
	{
	pcmk_ticket_t *ticket = data;

	if (ticket->state) {
	g_hash_table_destroy(ticket->state);
	}
	free(ticket->id);
	free(ticket);
	}

	pcmk_ticket_t *
	ticket_new(const char ticket_id, pcmk_scheduler_t scheduler)
	{
	pcmk_ticket_t *ticket = NULL;

	if (pcmk__str_empty(ticket_id)) {
	return NULL;
	}

	if (scheduler->tickets == NULL) {
	scheduler->tickets = pcmk__strkey_table(free, destroy_ticket);
	}

	ticket = g_hash_table_lookup(scheduler->tickets, ticket_id);
	if (ticket == NULL) {

	ticket = calloc(1, sizeof(pcmk_ticket_t));
	if (ticket == NULL) {
	pcmk__sched_err("Cannot allocate ticket '%s'", ticket_id);
	return NULL;
	}

	crm_trace("Creaing ticket entry for %s", ticket_id);

	ticket->id = strdup(ticket_id);
	ticket->granted = FALSE;
	ticket->last_granted = -1;
	ticket->standby = FALSE;
	ticket->state = pcmk__strkey_table(free, free);

	g_hash_table_insert(scheduler->tickets, strdup(ticket->id), ticket);
	}

	return ticket;
	}

	const char *
	rsc_printable_id(const pcmk_resource_t *rsc)
	{
	if (pcmk_is_set(rsc->flags, pcmk_rsc_unique)) {
	return rsc->id;
	}
	return pcmk__xe_id(rsc->xml);
	}

	void
	pe__clear_resource_flags_recursive(pcmk_resource_t *rsc, uint64_t flags)
	{
	pcmk__clear_rsc_flags(rsc, flags);
	for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
	pe__clear_resource_flags_recursive((pcmk_resource_t *) gIter->data,
	flags);
	}
	}

	void
	pe__clear_resource_flags_on_all(pcmk_scheduler_t *scheduler, uint64_t flag)
	{
	for (GList *lpc = scheduler->resources; lpc != NULL; lpc = lpc->next) {
	pcmk_resource_t r = (pcmk_resource_t ) lpc->data;
	pe__clear_resource_flags_recursive(r, flag);
	}
	}

	void
	pe__set_resource_flags_recursive(pcmk_resource_t *rsc, uint64_t flags)
	{
	pcmk__set_rsc_flags(rsc, flags);
	for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
	pe__set_resource_flags_recursive((pcmk_resource_t *) gIter->data,
	flags);
	}
	}

	void
	trigger_unfencing(pcmk_resource_t rsc, pcmk_node_t node, const char *reason,
	pcmk_action_t dependency, pcmk_scheduler_t scheduler)
	{
	if (!pcmk_is_set(scheduler->flags, pcmk_sched_enable_unfencing)) {
	/* No resources require it */
	return;

	} else if ((rsc != NULL)
	&& !pcmk_is_set(rsc->flags, pcmk_rsc_fence_device)) {
	/* Wasn't a stonith device */
	return;

	} else if(node
	&& node->details->online
	&& node->details->unclean == FALSE
	&& node->details->shutdown == FALSE) {
	pcmk_action_t *unfence = pe_fence_op(node, PCMK_ACTION_ON, FALSE,
	reason, FALSE, scheduler);

	if(dependency) {
	order_actions(unfence, dependency, pcmk__ar_ordered);
	}

	} else if(rsc) {
	GHashTableIter iter;

	g_hash_table_iter_init(&iter, rsc->allowed_nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
	if(node->details->online && node->details->unclean == FALSE && node->details->shutdown == FALSE) {
	trigger_unfencing(rsc, node, reason, dependency, scheduler);
	}
	}
	}
	}

	gboolean
	add_tag_ref(GHashTable * tags, const char * tag_name, const char * obj_ref)
	{
	pcmk_tag_t *tag = NULL;
	GList *gIter = NULL;
	gboolean is_existing = FALSE;

	CRM_CHECK(tags && tag_name && obj_ref, return FALSE);

	tag = g_hash_table_lookup(tags, tag_name);
	if (tag == NULL) {
	tag = calloc(1, sizeof(pcmk_tag_t));
	if (tag == NULL) {
	pcmk__sched_err("Could not allocate memory for tag %s", tag_name);
	return FALSE;
	}
	tag->id = strdup(tag_name);
	tag->refs = NULL;
	g_hash_table_insert(tags, strdup(tag_name), tag);
	}

	for (gIter = tag->refs; gIter != NULL; gIter = gIter->next) {
	const char existing_ref = (const char ) gIter->data;

	if (pcmk__str_eq(existing_ref, obj_ref, pcmk__str_none)){
	is_existing = TRUE;
	break;
	}
	}

	if (is_existing == FALSE) {
	tag->refs = g_list_append(tag->refs, strdup(obj_ref));
	crm_trace("Added: tag=%s ref=%s", tag->id, obj_ref);
	}

	return TRUE;
	}

	/*!
	* \internal
	* \brief Check whether shutdown has been requested for a node
	*
	* \param[in] node Node to check
	*
	* \return TRUE if node has shutdown attribute set and nonzero, FALSE otherwise
	* \note This differs from simply using node->details->shutdown in that it can
	* be used before that has been determined (and in fact to determine it),
	* and it can also be used to distinguish requested shutdown from implicit
	* shutdown of remote nodes by virtue of their connection stopping.
	*/
	bool
	pe__shutdown_requested(const pcmk_node_t *node)
	{
	const char *shutdown = pcmk__node_attr(node, PCMK__NODE_ATTR_SHUTDOWN, NULL,
	pcmk__rsc_node_current);

	return !pcmk__str_eq(shutdown, "0", pcmk__str_null_matches);
	}

	/*!
	* \internal
	* \brief Update "recheck by" time in scheduler data
	*
	* \param[in] recheck Epoch time when recheck should happen
	* \param[in,out] scheduler Scheduler data
	* \param[in] reason What time is being updated for (for logs)
	*/
	void
	pe__update_recheck_time(time_t recheck, pcmk_scheduler_t *scheduler,
	const char *reason)
	{
	if ((recheck > get_effective_time(scheduler))
	&& ((scheduler->recheck_by == 0)
	\|\| (scheduler->recheck_by > recheck))) {
	scheduler->recheck_by = recheck;
	crm_debug("Updated next scheduler recheck to %s for %s",
	pcmk__trim(ctime(&recheck)), reason);
	}
	}

	/*!
	* \internal
	* \brief Extract nvpair blocks contained by a CIB XML element into a hash table
	*
	* \param[in] xml_obj XML element containing blocks of nvpair elements
	* \param[in] set_name If not NULL, only use blocks of this element
	* \param[in] rule_data Matching parameters to use when unpacking
	* \param[out] hash Where to store extracted name/value pairs
	* \param[in] always_first If not NULL, process block with this ID first
	* \param[in] overwrite Whether to replace existing values with same name
	* \param[in,out] scheduler Scheduler data containing \p xml_obj
	*/
	void
	pe__unpack_dataset_nvpairs(const xmlNode xml_obj, const char set_name,
	const pe_rule_eval_data_t *rule_data,
	GHashTable hash, const char always_first,
	gboolean overwrite, pcmk_scheduler_t *scheduler)
	{
	crm_time_t *next_change = crm_time_new_undefined();

	pe_eval_nvpairs(scheduler->input, xml_obj, set_name, rule_data, hash,
	always_first, overwrite, next_change);
	if (crm_time_is_defined(next_change)) {
	time_t recheck = (time_t) crm_time_get_seconds_since_epoch(next_change);

	pe__update_recheck_time(recheck, scheduler, "rule evaluation");
	}
	crm_time_free(next_change);
	}

	bool
	pe__resource_is_disabled(const pcmk_resource_t *rsc)
	{
	const char *target_role = NULL;

	CRM_CHECK(rsc != NULL, return false);
	target_role = g_hash_table_lookup(rsc->meta, PCMK_META_TARGET_ROLE);
	if (target_role) {
	// If invalid, we've already logged an error when unpacking
	enum rsc_role_e target_role_e = pcmk_parse_role(target_role);

	if ((target_role_e == pcmk_role_stopped)
	\|\| ((target_role_e == pcmk_role_unpromoted)
	&& pcmk_is_set(pe__const_top_resource(rsc, false)->flags,
	pcmk_rsc_promotable))) {
	return true;
	}
	}
	return false;
	}

	/*!
	* \internal
	* \brief Check whether a resource is running only on given node
	*
	* \param[in] rsc Resource to check
	* \param[in] node Node to check
	*
	* \return true if \p rsc is running only on \p node, otherwise false
	*/
	bool
	pe__rsc_running_on_only(const pcmk_resource_t rsc, const pcmk_node_t node)
	{
	return (rsc != NULL) && pcmk__list_of_1(rsc->running_on)
	&& pcmk__same_node((const pcmk_node_t *) rsc->running_on->data,
	node);
	}

	bool
	pe__rsc_running_on_any(pcmk_resource_t rsc, GList node_list)
	{
	for (GList *ele = rsc->running_on; ele; ele = ele->next) {
	pcmk_node_t node = (pcmk_node_t ) ele->data;
	if (pcmk__str_in_list(node->details->uname, node_list,
	pcmk__str_star_matches\|pcmk__str_casei)) {
	return true;
	}
	}

	return false;
	}

	bool
	pcmk__rsc_filtered_by_node(pcmk_resource_t rsc, GList only_node)
	{
	return (rsc->fns->active(rsc, FALSE) && !pe__rsc_running_on_any(rsc, only_node));
	}

	GList *
	pe__filter_rsc_list(GList rscs, GList filter)
	{
	GList *retval = NULL;

	for (GList *gIter = rscs; gIter; gIter = gIter->next) {
	pcmk_resource_t rsc = (pcmk_resource_t ) gIter->data;

	/* I think the second condition is safe here for all callers of this
	* function. If not, it needs to move into pe__node_text.
	*/
	if (pcmk__str_in_list(rsc_printable_id(rsc), filter, pcmk__str_star_matches) \|\|
	(rsc->parent && pcmk__str_in_list(rsc_printable_id(rsc->parent), filter, pcmk__str_star_matches))) {
	retval = g_list_prepend(retval, rsc);
	}
	}

	return retval;
	}

	GList *
	pe__build_node_name_list(pcmk_scheduler_t scheduler, const char s)
	{
	GList *nodes = NULL;

	if (pcmk__str_eq(s, "*", pcmk__str_null_matches)) {
	/* Nothing was given so return a list of all node names. Or, '*' was
	* given. This would normally fall into the pe__unames_with_tag branch
	* where it will return an empty list. Catch it here instead.
	*/
	nodes = g_list_prepend(nodes, strdup("*"));
	} else {
	pcmk_node_t *node = pe_find_node(scheduler->nodes, s);

	if (node) {
	/* The given string was a valid uname for a node. Return a
	* singleton list containing just that uname.
	*/
	nodes = g_list_prepend(nodes, strdup(s));
	} else {
	/* The given string was not a valid uname. It's either a tag or
	* it's a typo or something. In the first case, we'll return a
	* list of all the unames of the nodes with the given tag. In the
	* second case, we'll return a NULL pointer and nothing will
	* get displayed.
	*/
	nodes = pe__unames_with_tag(scheduler, s);
	}
	}

	return nodes;
	}

	GList *
	pe__build_rsc_list(pcmk_scheduler_t scheduler, const char s)
	{
	GList *resources = NULL;

	if (pcmk__str_eq(s, "*", pcmk__str_null_matches)) {
	resources = g_list_prepend(resources, strdup("*"));
	} else {
	const uint32_t flags = pcmk_rsc_match_history\|pcmk_rsc_match_basename;
	pcmk_resource_t *rsc = pe_find_resource_with_flags(scheduler->resources,
	s, flags);

	if (rsc) {
	/* A colon in the name we were given means we're being asked to filter
	* on a specific instance of a cloned resource. Put that exact string
	* into the filter list. Otherwise, use the printable ID of whatever
	* resource was found that matches what was asked for.
	*/
	if (strstr(s, ":") != NULL) {
	resources = g_list_prepend(resources, strdup(rsc->id));
	} else {
	resources = g_list_prepend(resources, strdup(rsc_printable_id(rsc)));
	}
	} else {
	/* The given string was not a valid resource name. It's a tag or a
	* typo or something. See pe__build_node_name_list() for more
	* detail.
	*/
	resources = pe__rscs_with_tag(scheduler, s);
	}
	}

	return resources;
	}

	xmlNode *
	pe__failed_probe_for_rsc(const pcmk_resource_t rsc, const char name)
	{
	const pcmk_resource_t *parent = pe__const_top_resource(rsc, false);
	const char *rsc_id = rsc->id;

	if (parent->variant == pcmk_rsc_variant_clone) {
	rsc_id = pe__clone_child_id(parent);
	}

	for (xmlNode *xml_op = pcmk__xml_first_child(rsc->cluster->failed); xml_op != NULL;
	xml_op = pcmk__xml_next(xml_op)) {
	const char *value = NULL;
	char *op_id = NULL;

	/* This resource operation is not a failed probe. */
	if (!pcmk_xe_mask_probe_failure(xml_op)) {
	continue;
	}

	/* This resource operation was not run on the given node. Note that if name is
	* NULL, this will always succeed.
	*/
	value = crm_element_value(xml_op, PCMK__META_ON_NODE);
	if (value == NULL \|\| !pcmk__str_eq(value, name, pcmk__str_casei\|pcmk__str_null_matches)) {
	continue;
	}

	if (!parse_op_key(pcmk__xe_history_key(xml_op), &op_id, NULL, NULL)) {
	continue; // This history entry is missing an operation key
	}

	/* This resource operation's ID does not match the rsc_id we are looking for. */
	if (!pcmk__str_eq(op_id, rsc_id, pcmk__str_none)) {
	free(op_id);
	continue;
	}

	free(op_id);
	return xml_op;
	}

	return NULL;
	}

File Metadata

Mime Type: text/x-c
Expires: Wed, Jun 25, 7:52 AM (1 h, 4 m)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 1952579
Default Alt Text: utils.c (28 KB)

utils.cNo OneTemporaryActions

utils.cView Options

File Metadata

Event Timeline

utils.c
No OneTemporary
Actions

utils.c
View Options