crm.h

Go to the documentation of this file.

/*
 * Copyright 2004-2020 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 CRM__H
#  define CRM__H

#ifdef __cplusplus
extern "C" {
#endif

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

#  include <string.h>

#  include <libxml/tree.h>

#  define CRM_FEATURE_SET       "3.3.0"

#  define EOS       '\0'
#  define DIMOF(a)  ((int) (sizeof(a)/sizeof(a[0])) )

#  ifndef MAX_NAME
#    define MAX_NAME    256
#  endif

#  ifndef __GNUC__
#    define __builtin_expect(expr, result) (expr)
#  endif

/* Some handy macros used by the Linux kernel */
#  define __likely(expr) __builtin_expect(expr, 1)
#  define __unlikely(expr) __builtin_expect(expr, 0)

#  define CRM_META          "CRM_meta"

extern char *crm_system_name;

/* *INDENT-OFF* */

// Used for some internal IPC timeouts (maybe should be configurable option)
#  define MAX_IPC_DELAY   120

// How we represent "infinite" scores
#  define CRM_SCORE_INFINITY    1000000
#  define CRM_INFINITY_S        "INFINITY"
#  define CRM_PLUS_INFINITY_S   "+" CRM_INFINITY_S
#  define CRM_MINUS_INFINITY_S  "-" CRM_INFINITY_S

/* @COMPAT API < 2.0.0 Deprecated "infinity" aliases
 *
 * INFINITY might be defined elsewhere (e.g. math.h), so undefine it first.
 * This, of course, complicates any attempt to use the other definition in any
 * code that includes this header.
 */
#  undef INFINITY
#  define INFINITY_S        "INFINITY"
#  define MINUS_INFINITY_S "-INFINITY"
#  define INFINITY        1000000

/* Sub-systems */
#  define CRM_SYSTEM_DC     "dc"
#  define CRM_SYSTEM_DCIB       "dcib"
                                        /*  The master CIB */
#  define CRM_SYSTEM_CIB        "cib"
#  define CRM_SYSTEM_CRMD       "crmd"
#  define CRM_SYSTEM_LRMD       "lrmd"
#  define CRM_SYSTEM_PENGINE    "pengine"
#  define CRM_SYSTEM_TENGINE    "tengine"
#  define CRM_SYSTEM_STONITHD   "stonithd"
#  define CRM_SYSTEM_MCP    "pacemakerd"

// Names of internally generated node attributes
#  define CRM_ATTR_UNAME            "#uname"
#  define CRM_ATTR_ID               "#id"
#  define CRM_ATTR_KIND             "#kind"
#  define CRM_ATTR_ROLE             "#role"
#  define CRM_ATTR_IS_DC            "#is_dc"
#  define CRM_ATTR_CLUSTER_NAME     "#cluster-name"
#  define CRM_ATTR_SITE_NAME        "#site-name"
#  define CRM_ATTR_UNFENCED         "#node-unfenced"
#  define CRM_ATTR_DIGESTS_ALL      "#digests-all"
#  define CRM_ATTR_DIGESTS_SECURE   "#digests-secure"
#  define CRM_ATTR_RA_VERSION       "#ra-version"
#  define CRM_ATTR_PROTOCOL         "#attrd-protocol"

/* Valid operations */
#  define CRM_OP_NOOP       "noop"
#  define CRM_OP_JOIN_ANNOUNCE  "join_announce"
#  define CRM_OP_JOIN_OFFER "join_offer"
#  define CRM_OP_JOIN_REQUEST   "join_request"
#  define CRM_OP_JOIN_ACKNAK    "join_ack_nack"
#  define CRM_OP_JOIN_CONFIRM   "join_confirm"
#  define CRM_OP_PING       "ping"
#  define CRM_OP_NODE_INFO  "node-info"
#  define CRM_OP_THROTTLE   "throttle"
#  define CRM_OP_VOTE       "vote"
#  define CRM_OP_NOVOTE     "no-vote"
#  define CRM_OP_HELLO      "hello"
#  define CRM_OP_PECALC     "pe_calc"
#  define CRM_OP_QUIT       "quit"
#  define CRM_OP_LOCAL_SHUTDOWN     "start_shutdown"
#  define CRM_OP_SHUTDOWN_REQ   "req_shutdown"
#  define CRM_OP_SHUTDOWN   "do_shutdown"
#  define CRM_OP_FENCE      "stonith"
#  define CRM_OP_REGISTER       "register"
#  define CRM_OP_IPC_FWD        "ipc_fwd"
#  define CRM_OP_INVOKE_LRM "lrm_invoke"
#  define CRM_OP_LRM_REFRESH    "lrm_refresh" /* Deprecated */
#  define CRM_OP_LRM_QUERY  "lrm_query"
#  define CRM_OP_LRM_DELETE "lrm_delete"
#  define CRM_OP_LRM_FAIL       "lrm_fail"
#  define CRM_OP_PROBED     "probe_complete"
#  define CRM_OP_REPROBE        "probe_again"
#  define CRM_OP_CLEAR_FAILCOUNT  "clear_failcount"
#  define CRM_OP_REMOTE_STATE     "remote_state"
#  define CRM_OP_RELAXED_SET  "one-or-more"
#  define CRM_OP_RELAXED_CLONE  "clone-one-or-more"
#  define CRM_OP_RM_NODE_CACHE "rm_node_cache"
#  define CRM_OP_MAINTENANCE_NODES "maintenance_nodes"

/* Possible cluster membership states */
#  define CRMD_JOINSTATE_DOWN           "down"
#  define CRMD_JOINSTATE_PENDING        "pending"
#  define CRMD_JOINSTATE_MEMBER         "member"
#  define CRMD_JOINSTATE_NACK           "banned"

#  define CRMD_ACTION_DELETE        "delete"
#  define CRMD_ACTION_CANCEL        "cancel"

#  define CRMD_ACTION_RELOAD        "reload"
#  define CRMD_ACTION_MIGRATE       "migrate_to"
#  define CRMD_ACTION_MIGRATED      "migrate_from"

#  define CRMD_ACTION_START     "start"
#  define CRMD_ACTION_STARTED       "running"

#  define CRMD_ACTION_STOP      "stop"
#  define CRMD_ACTION_STOPPED       "stopped"

#  define CRMD_ACTION_PROMOTE       "promote"
#  define CRMD_ACTION_PROMOTED      "promoted"
#  define CRMD_ACTION_DEMOTE        "demote"
#  define CRMD_ACTION_DEMOTED       "demoted"

#  define CRMD_ACTION_NOTIFY        "notify"
#  define CRMD_ACTION_NOTIFIED      "notified"

#  define CRMD_ACTION_STATUS        "monitor"
#  define CRMD_ACTION_METADATA      "meta-data"
#  define CRMD_METADATA_CALL_TIMEOUT   30000

/* short names */
#  define RSC_DELETE    CRMD_ACTION_DELETE
#  define RSC_CANCEL    CRMD_ACTION_CANCEL

#  define RSC_MIGRATE   CRMD_ACTION_MIGRATE
#  define RSC_MIGRATED  CRMD_ACTION_MIGRATED

#  define RSC_START CRMD_ACTION_START
#  define RSC_STARTED   CRMD_ACTION_STARTED

#  define RSC_STOP  CRMD_ACTION_STOP
#  define RSC_STOPPED   CRMD_ACTION_STOPPED

#  define RSC_PROMOTE   CRMD_ACTION_PROMOTE
#  define RSC_PROMOTED  CRMD_ACTION_PROMOTED
#  define RSC_DEMOTE    CRMD_ACTION_DEMOTE
#  define RSC_DEMOTED   CRMD_ACTION_DEMOTED

#  define RSC_NOTIFY    CRMD_ACTION_NOTIFY
#  define RSC_NOTIFIED  CRMD_ACTION_NOTIFIED

#  define RSC_STATUS    CRMD_ACTION_STATUS
#  define RSC_METADATA  CRMD_ACTION_METADATA
/* *INDENT-ON* */

typedef GList *GListPtr;

#  include <crm/common/logging.h>
#  include <crm/common/util.h>

static inline const char *
crm_action_str(const char *task, guint interval_ms) {
    if(safe_str_eq(task, RSC_STATUS) && !interval_ms) {
        return "probe";
    }
    return task;
}

#ifdef __cplusplus
}
#endif

#endif