ctdb/include/ctdb_private.h

   1 /*
   2    ctdb database library
   3
   4    Copyright (C) Andrew Tridgell  2006
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef _CTDB_PRIVATE_H
  21 #define _CTDB_PRIVATE_H
  22
  23 #include "ctdb_client.h"
  24 #include <sys/socket.h>
  25
  26 /*
  27   array of tcp connections
  28  */
  29 struct ctdb_tcp_array {
  30         uint32_t num;
  31         struct ctdb_tcp_connection *connections;
  32 };
  33
  34 /*
  35   an installed ctdb remote call
  36 */
  37 struct ctdb_registered_call {
  38         struct ctdb_registered_call *next, *prev;
  39         uint32_t id;
  40         ctdb_fn_t fn;
  41 };
  42
  43 /*
  44   check that a pnn is valid
  45  */
  46 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
  47
  48
  49 /* called from the queue code when a packet comes in. Called with data==NULL
  50    on error */
  51 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
  52                                    void *private_data);
  53
  54 /* used for callbacks in ctdb_control requests */
  55 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
  56                                            int32_t status, TDB_DATA data,
  57                                            const char *errormsg,
  58                                            void *private_data);
  59 /*
  60   structure describing a connected client in the daemon
  61  */
  62 struct ctdb_client {
  63         struct ctdb_context *ctdb;
  64         int fd;
  65         struct ctdb_queue *queue;
  66         uint32_t client_id;
  67         pid_t pid;
  68         struct ctdb_tcp_list *tcp_list;
  69         uint32_t db_id;
  70         uint32_t num_persistent_updates;
  71         struct ctdb_client_notify_list *notify;
  72 };
  73
  74 /* state associated with a public ip address */
  75 struct ctdb_vnn {
  76         struct ctdb_vnn *prev, *next;
  77
  78         struct ctdb_iface *iface;
  79         const char **ifaces;
  80         ctdb_sock_addr public_address;
  81         uint8_t public_netmask_bits;
  82
  83         /* the node number that is serving this public address, if any.
  84            If no node serves this ip it is set to -1 */
  85         int32_t pnn;
  86
  87         /* List of clients to tickle for this public address */
  88         struct ctdb_tcp_array *tcp_array;
  89
  90         /* whether we need to update the other nodes with changes to our list
  91            of connected clients */
  92         bool tcp_update_needed;
  93
  94         /* a context to hang sending gratious arp events off */
  95         TALLOC_CTX *takeover_ctx;
  96
  97         struct ctdb_kill_tcp *killtcp;
  98
  99         /* Set to true any time an update to this VNN is in flight.
 100            This helps to avoid races. */
 101         bool update_in_flight;
 102
 103         /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
 104          * address then this flag is set.  It will be deleted in the
 105          * release IP callback. */
 106         bool delete_pending;
 107 };
 108
 109 /*
 110   state associated with one node
 111 */
 112 struct ctdb_node {
 113         struct ctdb_context *ctdb;
 114         ctdb_sock_addr address;
 115         const char *name; /* for debug messages */
 116         void *private_data; /* private to transport */
 117         uint32_t pnn;
 118         uint32_t flags;
 119
 120         /* used by the dead node monitoring */
 121         uint32_t dead_count;
 122         uint32_t rx_cnt;
 123         uint32_t tx_cnt;
 124
 125         /* a list of controls pending to this node, so we can time them out quickly
 126            if the node becomes disconnected */
 127         struct daemon_control_state *pending_controls;
 128
 129         /* used by the recovery daemon when distributing ip addresses
 130            across the nodes.  it needs to know which public ip's can be handled
 131            by each node.
 132         */
 133         struct ctdb_all_public_ips *known_public_ips;
 134         struct ctdb_all_public_ips *available_public_ips;
 135         /* used by the recovery dameon to track when a node should be banned */
 136         struct ctdb_banning_state *ban_state;
 137 };
 138
 139 /*
 140   transport specific methods
 141 */
 142 struct ctdb_methods {
 143         int (*initialise)(struct ctdb_context *); /* initialise transport structures */
 144         int (*start)(struct ctdb_context *); /* start the transport */
 145         int (*add_node)(struct ctdb_node *); /* setup a new node */
 146         int (*connect_node)(struct ctdb_node *); /* connect to node */
 147         int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
 148         void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
 149         void (*shutdown)(struct ctdb_context *); /* shutdown transport */
 150         void (*restart)(struct ctdb_node *); /* stop and restart the connection */
 151 };
 152
 153 /*
 154   transport calls up to the ctdb layer
 155 */
 156 struct ctdb_upcalls {
 157         /* recv_pkt is called when a packet comes in */
 158         void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
 159
 160         /* node_dead is called when an attempt to send to a node fails */
 161         void (*node_dead)(struct ctdb_node *);
 162
 163         /* node_connected is called when a connection to a node is established */
 164         void (*node_connected)(struct ctdb_node *);
 165 };
 166
 167 /* additional data required for the daemon mode */
 168 struct ctdb_daemon_data {
 169         int sd;
 170         char *name;
 171         struct ctdb_queue *queue;
 172 };
 173
 174
 175 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
 176         {                                                                               \
 177                 if (value > ctdb->statistics.counter) {                                 \
 178                         ctdb->statistics.counter = c->hopcount;                         \
 179                 }                                                                       \
 180                 if (value > ctdb->statistics_current.counter) {                         \
 181                         ctdb->statistics_current.counter = c->hopcount;                 \
 182                 }                                                                       \
 183         }
 184
 185 #define CTDB_INCREMENT_STAT(ctdb, counter) \
 186         {                                                                               \
 187                 ctdb->statistics.counter++;                                             \
 188                 ctdb->statistics_current.counter++;                                     \
 189         }
 190
 191 #define CTDB_DECREMENT_STAT(ctdb, counter) \
 192         {                                                                               \
 193                 if (ctdb->statistics.counter > 0)                                       \
 194                         ctdb->statistics.counter--;                                     \
 195                 if (ctdb->statistics_current.counter > 0)                               \
 196                         ctdb->statistics_current.counter--;                             \
 197         }
 198
 199 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
 200         {                                                                               \
 201                 ctdb_db->statistics.counter++;                                          \
 202         }
 203
 204 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
 205         {                                                                               \
 206                 if (ctdb_db->statistics.counter > 0)                                    \
 207                         ctdb_db->statistics.counter--;                                  \
 208         }
 209
 210 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
 211         {                                                                               \
 212                 if (value > ctdb->statistics.counter.max)                               \
 213                         ctdb->statistics.counter.max = value;                           \
 214                 if (value > ctdb->statistics_current.counter.max)                       \
 215                         ctdb->statistics_current.counter.max = value;                   \
 216                                                                                         \
 217                 if (ctdb->statistics.counter.num == 0 ||                                \
 218                     value < ctdb->statistics.counter.min)                               \
 219                         ctdb->statistics.counter.min = value;                           \
 220                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 221                     value < ctdb->statistics_current.counter.min)                       \
 222                         ctdb->statistics_current.counter.min = value;                   \
 223                                                                                         \
 224                 ctdb->statistics.counter.total += value;                                \
 225                 ctdb->statistics_current.counter.total += value;                        \
 226                                                                                         \
 227                 ctdb->statistics.counter.num++;                                         \
 228                 ctdb->statistics_current.counter.num++;                                 \
 229                                                                                         \
 230                 if (ctdb->tunable.reclock_latency_ms != 0) {                            \
 231                         if (value*1000 > ctdb->tunable.reclock_latency_ms) {            \
 232                                 DEBUG(DEBUG_ERR,                                        \
 233                                       ("High RECLOCK latency %fs for operation %s\n",   \
 234                                        value, name));                                   \
 235                         }                                                               \
 236                 }                                                                       \
 237         }
 238
 239 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value)                      \
 240         {                                                                               \
 241                 if (value > ctdb_db->statistics.counter.max)                            \
 242                         ctdb_db->statistics.counter.max = value;                        \
 243                 if (ctdb_db->statistics.counter.num == 0 ||                             \
 244                     value < ctdb_db->statistics.counter.min)                            \
 245                         ctdb_db->statistics.counter.min = value;                        \
 246                                                                                         \
 247                 ctdb_db->statistics.counter.total += value;                             \
 248                 ctdb_db->statistics.counter.num++;                                      \
 249                                                                                         \
 250                 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) {                       \
 251                         if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) {       \
 252                                 DEBUG(DEBUG_ERR,                                        \
 253                                       ("High latency %.6fs for operation %s on database %s\n",\
 254                                        value, operation, ctdb_db->db_name));            \
 255                         }                                                               \
 256                 }                                                                       \
 257         }
 258
 259 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
 260         {                                                                               \
 261                 double l = timeval_elapsed(&t);                                         \
 262                                                                                         \
 263                 if (l > ctdb->statistics.counter.max)                                   \
 264                         ctdb->statistics.counter.max = l;                               \
 265                 if (l > ctdb->statistics_current.counter.max)                           \
 266                         ctdb->statistics_current.counter.max = l;                       \
 267                                                                                         \
 268                 if (ctdb->statistics.counter.num == 0 ||                                \
 269                     l < ctdb->statistics.counter.min)                                   \
 270                         ctdb->statistics.counter.min = l;                               \
 271                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 272                     l < ctdb->statistics_current.counter.min)                           \
 273                         ctdb->statistics_current.counter.min = l;                       \
 274                                                                                         \
 275                 ctdb->statistics.counter.total += l;                                    \
 276                 ctdb->statistics_current.counter.total += l;                            \
 277                                                                                         \
 278                 ctdb->statistics.counter.num++;                                         \
 279                 ctdb->statistics_current.counter.num++;                                 \
 280                                                                                         \
 281                 if (ctdb->tunable.log_latency_ms != 0) {                                \
 282                         if (l*1000 > ctdb->tunable.log_latency_ms) {                    \
 283                                 DEBUG(DEBUG_WARNING,                                    \
 284                                       ("High latency %.6fs for operation %s on database %s\n",\
 285                                        l, operation, db->db_name));                     \
 286                         }                                                               \
 287                 }                                                                       \
 288         }
 289
 290
 291 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
 292
 293 #define NUM_DB_PRIORITIES 3
 294 /* main state of the ctdb daemon */
 295 struct ctdb_context {
 296         struct tevent_context *ev;
 297         struct timeval ctdbd_start_time;
 298         struct timeval last_recovery_started;
 299         struct timeval last_recovery_finished;
 300         uint32_t recovery_mode;
 301         TALLOC_CTX *tickle_update_context;
 302         TALLOC_CTX *keepalive_ctx;
 303         TALLOC_CTX *check_public_ifaces_ctx;
 304         struct ctdb_tunable tunable;
 305         enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
 306         struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
 307         bool freeze_transaction_started;
 308         uint32_t freeze_transaction_id;
 309         ctdb_sock_addr *address;
 310         const char *name;
 311         const char *db_directory;
 312         const char *db_directory_persistent;
 313         const char *db_directory_state;
 314         struct tdb_wrap *db_persistent_health;
 315         uint32_t db_persistent_startup_generation;
 316         uint64_t db_persistent_check_errors;
 317         uint64_t max_persistent_check_errors;
 318         const char *transport;
 319         char *recovery_lock_file;
 320         int recovery_lock_fd;
 321         uint32_t pnn; /* our own pnn */
 322         uint32_t num_nodes;
 323         uint32_t num_connected;
 324         unsigned flags;
 325         uint32_t capabilities;
 326         struct reqid_context *idr;
 327         struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
 328         struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
 329         struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
 330         struct ctdb_iface *ifaces; /* list of local interfaces */
 331         char *err_msg;
 332         const struct ctdb_methods *methods; /* transport methods */
 333         const struct ctdb_upcalls *upcalls; /* transport upcalls */
 334         void *private_data; /* private to transport */
 335         struct ctdb_db_context *db_list;
 336         struct srvid_context *srv;
 337         struct ctdb_daemon_data daemon;
 338         struct ctdb_statistics statistics;
 339         struct ctdb_statistics statistics_current;
 340 #define MAX_STAT_HISTORY 100
 341         struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
 342         struct ctdb_vnn_map *vnn_map;
 343         uint32_t num_clients;
 344         uint32_t recovery_master;
 345         struct ctdb_client_ip *client_ip_list;
 346         bool do_checkpublicip;
 347         struct trbt_tree *server_ids;
 348         bool do_setsched;
 349         const char *event_script_dir;
 350         const char *notification_script;
 351         const char *default_public_interface;
 352         pid_t ctdbd_pid;
 353         pid_t recoverd_pid;
 354         enum ctdb_runstate runstate;
 355         struct ctdb_monitor_state *monitor;
 356         int start_as_disabled;
 357         int start_as_stopped;
 358         bool valgrinding;
 359         uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
 360         uint32_t *recd_ping_count;
 361         TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
 362         TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
 363
 364         TALLOC_CTX *event_script_ctx;
 365         int active_events;
 366
 367         struct ctdb_event_script_state *current_monitor;
 368         struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
 369
 370         TALLOC_CTX *banning_ctx;
 371
 372         struct ctdb_vacuum_child_context *vacuumers;
 373
 374         /* mapping from pid to ctdb_client * */
 375         struct ctdb_client_pid_list *client_pids;
 376
 377         /* used in the recovery daemon to remember the ip allocation */
 378         struct trbt_tree *ip_tree;
 379
 380         /* Used to defer db attach requests while in recovery mode */
 381         struct ctdb_deferred_attach_context *deferred_attach;
 382
 383         /* if we are a child process, do we have a domain socket to send controls on */
 384         bool can_send_controls;
 385
 386         /* list of event script callback functions that are active */
 387         struct event_script_callback *script_callbacks;
 388
 389         struct ctdb_reloadips_handle *reload_ips;
 390
 391         const char *nodes_file;
 392         const char *public_addresses_file;
 393         struct trbt_tree *child_processes;
 394
 395         /* Used for locking record/db/alldb */
 396         struct lock_context *lock_current;
 397         struct lock_context *lock_pending;
 398 };
 399
 400 struct ctdb_db_context {
 401         struct ctdb_db_context *next, *prev;
 402         struct ctdb_context *ctdb;
 403         uint32_t db_id;
 404         uint32_t priority;
 405         bool persistent;
 406         bool readonly; /* Do we support read-only delegations ? */
 407         bool sticky; /* Do we support sticky records ? */
 408         const char *db_name;
 409         const char *db_path;
 410         struct tdb_wrap *ltdb;
 411         struct tdb_context *rottdb; /* ReadOnly tracking TDB */
 412         struct ctdb_registered_call *calls; /* list of registered calls */
 413         uint32_t seqnum;
 414         struct tevent_timer *seqnum_update;
 415         struct ctdb_traverse_local_handle *traverse;
 416         struct ctdb_vacuum_handle *vacuum_handle;
 417         char *unhealthy_reason;
 418         int pending_requests;
 419         struct revokechild_handle *revokechild_active;
 420         struct ctdb_persistent_state *persistent_state;
 421         struct trbt_tree *delete_queue;
 422         struct trbt_tree *sticky_records;
 423         int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
 424                                   TDB_DATA key,
 425                                   struct ctdb_ltdb_header *header,
 426                                   TDB_DATA data);
 427
 428         /* used to track which records we are currently fetching
 429            so we can avoid sending duplicate fetch requests
 430         */
 431         struct trbt_tree *deferred_fetch;
 432         struct trbt_tree *defer_dmaster;
 433
 434         struct ctdb_db_statistics statistics;
 435
 436         struct lock_context *lock_current;
 437         struct lock_context *lock_pending;
 438         int lock_num_current;
 439
 440         struct ctdb_call_state *pending_calls;
 441
 442         enum ctdb_freeze_mode freeze_mode;
 443         struct ctdb_db_freeze_handle *freeze_handle;
 444         bool freeze_transaction_started;
 445         uint32_t freeze_transaction_id;
 446         uint32_t generation;
 447 };
 448
 449
 450 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
 451           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 452           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 453           return -1; }} while (0)
 454
 455 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
 456           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 457           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 458           return; }} while (0)
 459
 460 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
 461           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 462           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 463           return NULL; }} while (0)
 464
 465 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
 466           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 467           ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
 468           }} while (0)
 469
 470
 471 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
 472
 473 /*
 474   state of a in-progress ctdb call
 475 */
 476 struct ctdb_call_state {
 477         struct ctdb_call_state *next, *prev;
 478         enum call_state state;
 479         uint32_t reqid;
 480         struct ctdb_req_call *c;
 481         struct ctdb_db_context *ctdb_db;
 482         const char *errmsg;
 483         struct ctdb_call *call;
 484         uint32_t generation;
 485         struct {
 486                 void (*fn)(struct ctdb_call_state *);
 487                 void *private_data;
 488         } async;
 489 };
 490
 491 /* internal prototypes */
 492
 493 #define CHECK_CONTROL_DATA_SIZE(size) do { \
 494  if (indata.dsize != size) { \
 495          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
 496                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 497          return -1; \
 498  } \
 499  } while (0)
 500
 501 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
 502  if (indata.dsize < size) { \
 503          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
 504                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 505          return -1; \
 506  } \
 507  } while (0)
 508
 509 /*
 510   state of a in-progress ctdb call in client
 511 */
 512 struct ctdb_client_call_state {
 513         enum call_state state;
 514         uint32_t reqid;
 515         struct ctdb_db_context *ctdb_db;
 516         struct ctdb_call *call;
 517         struct {
 518                 void (*fn)(struct ctdb_client_call_state *);
 519                 void *private_data;
 520         } async;
 521 };
 522
 523 extern int script_log_level;
 524 extern bool fast_start;
 525 extern const char *ctdbd_pidfile;
 526
 527 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
 528
 529
 530 /* from tcp/ and ib/ */
 531
 532 int ctdb_tcp_init(struct ctdb_context *ctdb);
 533 int ctdb_ibw_init(struct ctdb_context *ctdb);
 534
 535 /* from ctdb_banning.c */
 536
 537 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
 538 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
 539 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
 540 void ctdb_ban_self(struct ctdb_context *ctdb);
 541
 542 /* from ctdb_call.c */
 543
 544 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
 545
 546 void ctdb_request_dmaster(struct ctdb_context *ctdb,
 547                           struct ctdb_req_header *hdr);
 548 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
 549                         struct ctdb_req_header *hdr);
 550 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 551 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 552 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 553
 554 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
 555 void ctdb_call_resend_all(struct ctdb_context *ctdb);
 556
 557 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
 558                                              struct ctdb_call *call,
 559                                              struct ctdb_ltdb_header *header,
 560                                              TDB_DATA *data);
 561
 562 struct ctdb_call_state *ctdb_daemon_call_send_remote(
 563                                         struct ctdb_db_context *ctdb_db,
 564                                         struct ctdb_call *call,
 565                                         struct ctdb_ltdb_header *header);
 566 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
 567                           struct ctdb_call *call);
 568
 569 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
 570
 571 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
 572                                 struct ctdb_db_context *ctdb_db,
 573                                 TDB_DATA key, struct ctdb_ltdb_header *header,
 574                                 TDB_DATA data);
 575
 576 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
 577                                   struct ctdb_db_context *ctdb_db,
 578                                   TDB_DATA key, struct ctdb_req_header *hdr,
 579                                   deferred_requeue_fn fn, void *call_context);
 580
 581 /* from server/ctdb_control.c */
 582
 583 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
 584
 585 void ctdb_request_control_reply(struct ctdb_context *ctdb,
 586                                 struct ctdb_req_control *c,
 587                                 TDB_DATA *outdata, int32_t status,
 588                                 const char *errormsg);
 589
 590 void ctdb_request_control(struct ctdb_context *ctdb,
 591                           struct ctdb_req_header *hdr);
 592 void ctdb_reply_control(struct ctdb_context *ctdb,
 593                         struct ctdb_req_header *hdr);
 594
 595 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
 596                              uint64_t srvid, uint32_t opcode,
 597                              uint32_t client_id, uint32_t flags,
 598                              TDB_DATA data,
 599                              ctdb_control_callback_fn_t callback,
 600                              void *private_data);
 601
 602 /* from server/ctdb_daemon.c */
 603
 604 int daemon_register_message_handler(struct ctdb_context *ctdb,
 605                                     uint32_t client_id, uint64_t srvid);
 606 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
 607                                       uint32_t client_id, uint64_t srvid);
 608 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
 609                         TDB_DATA *outdata);
 610
 611 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
 612
 613 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
 614                                                  TALLOC_CTX *mem_ctx,
 615                                                  enum ctdb_operation operation,
 616                                                  size_t length, size_t slength,
 617                                                  const char *type);
 618
 619 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
 620         (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
 621                                          sizeof(type), #type)
 622
 623 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
 624                                  struct ctdb_node *node);
 625
 626 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
 627                          ctdb_fn_t fn, int id);
 628
 629 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
 630                              uint64_t srvid, TDB_DATA data);
 631
 632 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
 633                                      uint32_t client_id, TDB_DATA indata);
 634 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
 635                                        uint32_t client_id, TDB_DATA indata);
 636
 637 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
 638                                             pid_t pid);
 639
 640 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
 641
 642 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
 643                               TDB_DATA indata, TDB_DATA *outdata);
 644
 645 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
 646
 647 /* from server/ctdb_freeze.c */
 648
 649 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
 650                                struct ctdb_req_control *c,
 651                                uint32_t db_id, bool *async_reply);
 652 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
 653
 654 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
 655                             struct ctdb_req_control *c, bool *async_reply);
 656 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
 657                           bool check_recmode);
 658
 659 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
 660
 661 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
 662                                           TDB_DATA indata);
 663 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
 664                                            TDB_DATA indata);
 665 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
 666                                            TDB_DATA indata);
 667
 668 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
 669 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
 670 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
 671
 672 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
 673
 674 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
 675 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
 676 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
 677
 678 /* from server/ctdb_keepalive.c */
 679
 680 void ctdb_start_keepalive(struct ctdb_context *ctdb);
 681 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
 682
 683 /* from server/ctdb_lock.c */
 684
 685 struct lock_request;
 686
 687 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
 688                                  void *private_data);
 689
 690 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
 691                           ctdb_db_handler_t handler, void *private_data);
 692 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
 693                      void *private_data);
 694
 695 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
 696 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
 697
 698 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
 699 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
 700
 701 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
 702                                       struct ctdb_db_context *ctdb_db,
 703                                       TDB_DATA key,
 704                                       bool auto_mark,
 705                                       void (*callback)(void *, bool),
 706                                       void *private_data);
 707
 708 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
 709                                   struct ctdb_db_context *ctdb_db,
 710                                   bool auto_mark,
 711                                   void (*callback)(void *, bool),
 712                                   void *private_data);
 713
 714 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
 715                                           struct ctdb_context *ctdb,
 716                                           uint32_t priority,
 717                                           bool auto_mark,
 718                                           void (*callback)(void *, bool),
 719                                           void *private_data);
 720
 721 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
 722                                      struct ctdb_context *ctdb,
 723                                      bool auto_mark,
 724                                      void (*callback)(void *, bool),
 725                                      void *private_data);
 726
 727 /* from ctdb_logging.c */
 728
 729 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
 730                                    const char *logging,
 731                                    const char *app_name);
 732
 733 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
 734
 735 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
 736
 737 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
 738                                                struct ctdb_context *ctdb,
 739                                                const char *log_prefix,
 740                                                const char *helper,
 741                                                int helper_argc,
 742                                                const char **helper_argv,
 743                                                void (*logfn)(const char *,
 744                                                              uint16_t, void *),
 745                                                void *logfn_private, pid_t *pid);
 746
 747 int ctdb_set_child_logging(struct ctdb_context *ctdb);
 748 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
 749
 750 /* from ctdb_logging_file.c */
 751
 752 void ctdb_log_init_file(void);
 753
 754 /* from ctdb_logging_syslog.c */
 755
 756 void ctdb_log_init_syslog(void);
 757
 758 /* from ctdb_ltdb_server.c */
 759
 760 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
 761                            TDB_DATA key, struct ctdb_req_header *hdr,
 762                            void (*recv_pkt)(void *, struct ctdb_req_header *),
 763                            void *recv_context, bool ignore_generation);
 764
 765 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
 766                                  TDB_DATA key, struct ctdb_ltdb_header *header,
 767                                  struct ctdb_req_header *hdr, TDB_DATA *data,
 768                                  void (*recv_pkt)(void *, struct ctdb_req_header *),
 769                                  void *recv_context, bool ignore_generation);
 770
 771 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
 772                                 struct ctdb_db_context *ctdb_db);
 773 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
 774                                   struct ctdb_db_context *ctdb_db,
 775                                   const char *reason,/* NULL means healthy */
 776                                   int num_healthy_nodes);
 777 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
 778
 779 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
 780                                     TDB_DATA indata);
 781 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
 782                                    TDB_DATA indata, TDB_DATA *outdata);
 783
 784 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
 785                          struct ctdb_db_context *ctdb_db);
 786
 787 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
 788
 789 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
 790                                TDB_DATA *outdata, uint64_t tdb_flags,
 791                                bool persistent, uint32_t client_id,
 792                                struct ctdb_req_control *c,
 793                                bool *async_reply);
 794 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
 795                                uint32_t client_id);
 796
 797 int ctdb_attach_databases(struct ctdb_context *ctdb);
 798
 799 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
 800                                 uint32_t srcnode);
 801 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
 802
 803 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
 804                                      uint32_t client_id);
 805
 806 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
 807                        struct ctdb_db_context *ctdb_db);
 808
 809 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
 810
 811 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
 812                                        uint32_t db_id, TDB_DATA *outdata);
 813
 814 /* from ctdb_monitor.c */
 815
 816 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
 817 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
 818
 819 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
 820 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
 821 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
 822
 823 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
 824
 825 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
 826
 827 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
 828 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
 829
 830 /* from ctdb_persistent.c */
 831
 832 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
 833
 834 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
 835                                    struct ctdb_req_control *c,
 836                                    TDB_DATA recdata, bool *async_reply);
 837
 838 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
 839                                              struct ctdb_req_control *c,
 840                                              TDB_DATA recdata);
 841 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
 842                                               struct ctdb_req_control *c,
 843                                               TDB_DATA recdata);
 844
 845 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
 846                                    TDB_DATA indata, TDB_DATA *outdata);
 847
 848 /* from ctdb_recover.c */
 849
 850 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 851                            TDB_DATA indata, TDB_DATA *outdata);
 852 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 853                            TDB_DATA indata, TDB_DATA *outdata);
 854
 855 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
 856                           TDB_DATA indata, TDB_DATA *outdata);
 857 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
 858                             TDB_DATA indata, TDB_DATA *outdata);
 859
 860 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
 861
 862 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
 863                              TDB_DATA *outdata);
 864 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
 865
 866 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
 867
 868 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
 869                                  struct ctdb_req_control *c,
 870                                  TDB_DATA indata, bool *async_reply,
 871                                  const char **errormsg);
 872
 873 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
 874 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
 875 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
 876
 877 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
 878                                  struct ctdb_req_control *c,
 879                                  bool *async_reply);
 880 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
 881                                  struct ctdb_req_control *c,
 882                                  bool *async_reply);
 883
 884 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
 885                                         TDB_DATA indata, TDB_DATA *outdata);
 886 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
 887                                      TDB_DATA indata, TDB_DATA *outdata);
 888
 889 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
 890                                       TDB_DATA *outdata);
 891
 892 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
 893 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
 894                                    uint32_t opcode, TDB_DATA indata);
 895
 896 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
 897 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
 898
 899 /* from ctdb_recoverd.c */
 900
 901 int ctdb_start_recoverd(struct ctdb_context *ctdb);
 902 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
 903
 904 /* from ctdb_server.c */
 905
 906 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
 907
 908 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
 909
 910 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
 911
 912 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
 913
 914 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
 915
 916 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
 917
 918 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
 919
 920 void ctdb_node_dead(struct ctdb_node *node);
 921 void ctdb_node_connected(struct ctdb_node *node);
 922
 923 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 924 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
 925                               struct ctdb_req_header *hdr, unsigned opcode);
 926
 927 /* from ctdb_serverids.c */
 928
 929 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
 930                                         uint32_t client_id, TDB_DATA indata);
 931 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
 932                                      TDB_DATA indata);
 933 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
 934                                           TDB_DATA indata);
 935 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
 936                                         TDB_DATA *outdata);
 937
 938 /* from ctdb_statistics.c */
 939
 940 int ctdb_statistics_init(struct ctdb_context *ctdb);
 941
 942 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
 943                                       struct ctdb_req_control *c,
 944                                       TDB_DATA *outdata);
 945
 946 /* from ctdb_takeover.c */
 947
 948 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
 949                                  struct ctdb_req_control *c,
 950                                  TDB_DATA indata,
 951                                  bool *async_reply);
 952 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
 953                                  struct ctdb_req_control *c,
 954                                  TDB_DATA indata,
 955                                  bool *async_reply);
 956 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
 957                                  struct ctdb_req_control *c,
 958                                  bool *async_reply);
 959
 960 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
 961 int ctdb_set_single_public_ip(struct ctdb_context *ctdb, const char *iface,
 962                               const char *ip);
 963
 964 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
 965                       uint32_t *force_rebalance_nodes,
 966                       client_async_callback fail_callback, void *callback_data);
 967
 968 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
 969                                 TDB_DATA indata);
 970 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
 971                              bool tcp_update_needed);
 972 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
 973 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
 974
 975 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
 976
 977 void ctdb_release_all_ips(struct ctdb_context *ctdb);
 978
 979 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
 980                                     struct ctdb_req_control *c,
 981                                     TDB_DATA *outdata);
 982 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
 983                                         struct ctdb_req_control *c,
 984                                         TDB_DATA indata, TDB_DATA *outdata);
 985
 986 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
 987                                 struct ctdb_req_control *c,
 988                                 TDB_DATA *outdata);
 989 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
 990                                     struct ctdb_req_control *c,
 991                                     TDB_DATA indata);
 992
 993 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
 994 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
 995                                          TDB_DATA indata);
 996 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
 997                                          TDB_DATA indata, TDB_DATA *outdata);
 998
 999 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1000
1001 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
1002                                        TDB_DATA indata);
1003
1004 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
1005                                         TDB_DATA indata);
1006 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1007                                         struct ctdb_req_control *c,
1008                                         TDB_DATA recdata, bool *async_reply);
1009
1010 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1011                                 struct ctdb_all_public_ips *ips,
1012                                 uint32_t pnn);
1013 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1014                                 struct ctdb_public_ip *ip);
1015 void clear_ip_assignment_tree(struct ctdb_context *ctdb);
1016
1017 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
1018                                        struct ctdb_req_control *c,
1019                                        bool *async_reply);
1020
1021 /* from ctdb_traverse.c */
1022
1023 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
1024                                       TDB_DATA data, TDB_DATA *outdata);
1025 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
1026                                   TDB_DATA data, TDB_DATA *outdata);
1027 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
1028                                    TDB_DATA data, TDB_DATA *outdata);
1029 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1030                                     TDB_DATA *outdata, uint32_t srcnode);
1031
1032 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1033                                         TDB_DATA indata, TDB_DATA *outdata,
1034                                         uint32_t srcnode, uint32_t client_id);
1035 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
1036                                     TDB_DATA indata, TDB_DATA *outdata,
1037                                     uint32_t srcnode, uint32_t client_id);
1038
1039 /* from ctdb_tunables.c */
1040
1041 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1042
1043 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1044                                  TDB_DATA *outdata);
1045 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1046 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
1047                                    TDB_DATA *outdata);
1048
1049 /* from ctdb_update_record.c */
1050
1051 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1052                                    struct ctdb_req_control *c,
1053                                    TDB_DATA recdata, bool *async_reply);
1054
1055 /* from ctdb_uptime.c */
1056
1057 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
1058
1059 /* from ctdb_vacuum.c */
1060
1061 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1062 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1063
1064 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1065                                            TDB_DATA indata);
1066 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1067                                          const struct ctdb_ltdb_header *hdr,
1068                                          TDB_DATA key);
1069
1070 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1071                                          const struct ctdb_ltdb_header *hdr,
1072                                          const TDB_DATA key);
1073
1074 /* from eventscript.c */
1075
1076 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1077                                              uint32_t call_type,
1078                                              TDB_DATA *outdata);
1079
1080 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1081                                TALLOC_CTX *mem_ctx,
1082                                void (*callback)(struct ctdb_context *,
1083                                                 int, void *),
1084                                void *private_data,
1085                                enum ctdb_event call,
1086                                const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1087
1088 int ctdb_event_script_args(struct ctdb_context *ctdb,
1089                            enum ctdb_event call,
1090                            const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1091
1092 int ctdb_event_script(struct ctdb_context *ctdb,
1093                       enum ctdb_event call);
1094
1095 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1096                               struct ctdb_req_control *c,
1097                               TDB_DATA data, bool *async_reply);
1098
1099 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1100 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1101
1102 #endif