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Diffstat (limited to '')
| -rw-r--r-- | include/crm/common/nodes.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/include/crm/common/nodes.h b/include/crm/common/nodes.h new file mode 100644 index 0000000..fbc3758 --- /dev/null +++ b/include/crm/common/nodes.h @@ -0,0 +1,144 @@ +/* + * Copyright 2004-2023 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. + */ + +#ifndef PCMK__CRM_COMMON_NODES__H +# define PCMK__CRM_COMMON_NODES__H + +#include <glib.h> // gboolean, GList, GHashTable + +#include <crm/common/scheduler_types.h> // pcmk_resource_t, pcmk_scheduler_t + +#ifdef __cplusplus +extern "C" { +#endif + +/*! + * \file + * \brief Scheduler API for nodes + * \ingroup core + */ + +// Special node attributes + +#define PCMK_NODE_ATTR_TERMINATE "terminate" + + +//! Possible node types +enum node_type { + pcmk_node_variant_cluster = 1, //!< Cluster layer node + pcmk_node_variant_remote = 2, //!< Pacemaker Remote node + + node_ping = 0, //!< \deprecated Do not use +#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) + //! \deprecated Use pcmk_node_variant_cluster instead + node_member = pcmk_node_variant_cluster, + + //! \deprecated Use pcmk_node_variant_remote instead + node_remote = pcmk_node_variant_remote, +#endif +}; + +//! When to probe a resource on a node (as specified in location constraints) +enum pe_discover_e { + pcmk_probe_always = 0, //! Always probe resource on node + pcmk_probe_never = 1, //! Never probe resource on node + pcmk_probe_exclusive = 2, //! Probe only on designated nodes + +#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) + //! \deprecated Use pcmk_probe_always instead + pe_discover_always = pcmk_probe_always, + + //! \deprecated Use pcmk_probe_never instead + pe_discover_never = pcmk_probe_never, + + //! \deprecated Use pcmk_probe_exclusive instead + pe_discover_exclusive = pcmk_probe_exclusive, +#endif +}; + +//! Basic node information (all node objects for the same node share this) +struct pe_node_shared_s { + const char *id; //!< Node ID at the cluster layer + const char *uname; //!< Node name in cluster + enum node_type type; //!< Node variant + + // @TODO Convert these into a flag group + gboolean online; //!< Whether online + gboolean standby; //!< Whether in standby mode + gboolean standby_onfail; //!< Whether in standby mode due to on-fail + gboolean pending; //!< Whether controller membership is pending + gboolean unclean; //!< Whether node requires fencing + gboolean unseen; //!< Whether node has never joined cluster + gboolean shutdown; //!< Whether shutting down + gboolean expected_up; //!< Whether expected join state is member + gboolean is_dc; //!< Whether node is cluster's DC + gboolean maintenance; //!< Whether in maintenance mode + gboolean rsc_discovery_enabled; //!< Whether probes are allowed on node + + /*! + * Whether this is a guest node whose guest resource must be recovered or a + * remote node that must be fenced + */ + gboolean remote_requires_reset; + + /*! + * Whether this is a Pacemaker Remote node that was fenced since it was last + * connected by the cluster + */ + gboolean remote_was_fenced; + + /*! + * Whether this is a Pacemaker Remote node previously marked in its + * node state as being in maintenance mode + */ + gboolean remote_maintenance; + + gboolean unpacked; //!< Whether node history has been unpacked + + /*! + * Number of resources active on this node (valid after CIB status section + * has been unpacked, as long as pcmk_sched_no_counts was not set) + */ + int num_resources; + + //! Remote connection resource for node, if it is a Pacemaker Remote node + pcmk_resource_t *remote_rsc; + + GList *running_rsc; //!< List of resources active on node + GList *allocated_rsc; //!< List of resources assigned to node + GHashTable *attrs; //!< Node attributes + GHashTable *utilization; //!< Node utilization attributes + GHashTable *digest_cache; //!< Cache of calculated resource digests + + /*! + * Sum of priorities of all resources active on node and on any guest nodes + * connected to this node, with +1 for promoted instances (used to compare + * nodes for priority-fencing-delay) + */ + int priority; + + pcmk_scheduler_t *data_set; //!< Cluster that node is part of +}; + +//! Implementation of pcmk_node_t +struct pe_node_s { + int weight; //!< Node score for a given resource + gboolean fixed; //!< \deprecated Do not use + int count; //!< Counter reused by assignment and promotion code + struct pe_node_shared_s *details; //!< Basic node information + + // @COMPAT This should be enum pe_discover_e + int rsc_discover_mode; //!< Probe mode (enum pe_discover_e) +}; + +#ifdef __cplusplus +} +#endif + +#endif // PCMK__CRM_COMMON_NODES__H |