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_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_interface *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         /* Set to true any time an update to this VNN is in flight.
  98            This helps to avoid races. */
  99         bool update_in_flight;
 100
 101         /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
 102          * address then this flag is set.  It will be deleted in the
 103          * release IP callback. */
 104         bool delete_pending;
 105 };
 106
 107 /*
 108   state associated with one node
 109 */
 110 struct ctdb_node {
 111         struct ctdb_context *ctdb;
 112         ctdb_sock_addr address;
 113         const char *name; /* for debug messages */
 114         void *private_data; /* private to transport */
 115         uint32_t pnn;
 116         uint32_t flags;
 117
 118         /* used by the dead node monitoring */
 119         uint32_t dead_count;
 120         uint32_t rx_cnt;
 121         uint32_t tx_cnt;
 122
 123         /* a list of controls pending to this node, so we can time them out quickly
 124            if the node becomes disconnected */
 125         struct daemon_control_state *pending_controls;
 126
 127         /* used by the recovery dameon to track when a node should be banned */
 128         struct ctdb_banning_state *ban_state;
 129 };
 130
 131 /*
 132   transport specific methods
 133 */
 134 struct ctdb_methods {
 135         int (*initialise)(struct ctdb_context *); /* initialise transport structures */
 136         int (*start)(struct ctdb_context *); /* start the transport */
 137         int (*add_node)(struct ctdb_node *); /* setup a new node */
 138         int (*connect_node)(struct ctdb_node *); /* connect to node */
 139         int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
 140         void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
 141         void (*shutdown)(struct ctdb_context *); /* shutdown transport */
 142         void (*restart)(struct ctdb_node *); /* stop and restart the connection */
 143 };
 144
 145 /*
 146   transport calls up to the ctdb layer
 147 */
 148 struct ctdb_upcalls {
 149         /* recv_pkt is called when a packet comes in */
 150         void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
 151
 152         /* node_dead is called when an attempt to send to a node fails */
 153         void (*node_dead)(struct ctdb_node *);
 154
 155         /* node_connected is called when a connection to a node is established */
 156         void (*node_connected)(struct ctdb_node *);
 157 };
 158
 159 /* additional data required for the daemon mode */
 160 struct ctdb_daemon_data {
 161         int sd;
 162         char *name;
 163         struct ctdb_queue *queue;
 164 };
 165
 166
 167 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
 168         {                                                                               \
 169                 if (value > ctdb->statistics.counter) {                                 \
 170                         ctdb->statistics.counter = c->hopcount;                         \
 171                 }                                                                       \
 172                 if (value > ctdb->statistics_current.counter) {                         \
 173                         ctdb->statistics_current.counter = c->hopcount;                 \
 174                 }                                                                       \
 175         }
 176
 177 #define CTDB_INCREMENT_STAT(ctdb, counter) \
 178         {                                                                               \
 179                 ctdb->statistics.counter++;                                             \
 180                 ctdb->statistics_current.counter++;                                     \
 181         }
 182
 183 #define CTDB_DECREMENT_STAT(ctdb, counter) \
 184         {                                                                               \
 185                 if (ctdb->statistics.counter > 0)                                       \
 186                         ctdb->statistics.counter--;                                     \
 187                 if (ctdb->statistics_current.counter > 0)                               \
 188                         ctdb->statistics_current.counter--;                             \
 189         }
 190
 191 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
 192         {                                                                               \
 193                 ctdb_db->statistics.counter++;                                          \
 194         }
 195
 196 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
 197         {                                                                               \
 198                 if (ctdb_db->statistics.counter > 0)                                    \
 199                         ctdb_db->statistics.counter--;                                  \
 200         }
 201
 202 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
 203         {                                                                               \
 204                 if (value > ctdb->statistics.counter.max)                               \
 205                         ctdb->statistics.counter.max = value;                           \
 206                 if (value > ctdb->statistics_current.counter.max)                       \
 207                         ctdb->statistics_current.counter.max = value;                   \
 208                                                                                         \
 209                 if (ctdb->statistics.counter.num == 0 ||                                \
 210                     value < ctdb->statistics.counter.min)                               \
 211                         ctdb->statistics.counter.min = value;                           \
 212                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 213                     value < ctdb->statistics_current.counter.min)                       \
 214                         ctdb->statistics_current.counter.min = value;                   \
 215                                                                                         \
 216                 ctdb->statistics.counter.total += value;                                \
 217                 ctdb->statistics_current.counter.total += value;                        \
 218                                                                                         \
 219                 ctdb->statistics.counter.num++;                                         \
 220                 ctdb->statistics_current.counter.num++;                                 \
 221                                                                                         \
 222                 if (ctdb->tunable.reclock_latency_ms != 0) {                            \
 223                         if (value*1000 > ctdb->tunable.reclock_latency_ms) {            \
 224                                 DEBUG(DEBUG_ERR,                                        \
 225                                       ("High RECLOCK latency %fs for operation %s\n",   \
 226                                        value, name));                                   \
 227                         }                                                               \
 228                 }                                                                       \
 229         }
 230
 231 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value)                      \
 232         {                                                                               \
 233                 if (value > ctdb_db->statistics.counter.max)                            \
 234                         ctdb_db->statistics.counter.max = value;                        \
 235                 if (ctdb_db->statistics.counter.num == 0 ||                             \
 236                     value < ctdb_db->statistics.counter.min)                            \
 237                         ctdb_db->statistics.counter.min = value;                        \
 238                                                                                         \
 239                 ctdb_db->statistics.counter.total += value;                             \
 240                 ctdb_db->statistics.counter.num++;                                      \
 241                                                                                         \
 242                 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) {                       \
 243                         if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) {       \
 244                                 DEBUG(DEBUG_ERR,                                        \
 245                                       ("High latency %.6fs for operation %s on database %s\n",\
 246                                        value, operation, ctdb_db->db_name));            \
 247                         }                                                               \
 248                 }                                                                       \
 249         }
 250
 251 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
 252         {                                                                               \
 253                 double l = timeval_elapsed(&t);                                         \
 254                                                                                         \
 255                 if (l > ctdb->statistics.counter.max)                                   \
 256                         ctdb->statistics.counter.max = l;                               \
 257                 if (l > ctdb->statistics_current.counter.max)                           \
 258                         ctdb->statistics_current.counter.max = l;                       \
 259                                                                                         \
 260                 if (ctdb->statistics.counter.num == 0 ||                                \
 261                     l < ctdb->statistics.counter.min)                                   \
 262                         ctdb->statistics.counter.min = l;                               \
 263                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 264                     l < ctdb->statistics_current.counter.min)                           \
 265                         ctdb->statistics_current.counter.min = l;                       \
 266                                                                                         \
 267                 ctdb->statistics.counter.total += l;                                    \
 268                 ctdb->statistics_current.counter.total += l;                            \
 269                                                                                         \
 270                 ctdb->statistics.counter.num++;                                         \
 271                 ctdb->statistics_current.counter.num++;                                 \
 272                                                                                         \
 273                 if (ctdb->tunable.log_latency_ms != 0) {                                \
 274                         if (l*1000 > ctdb->tunable.log_latency_ms) {                    \
 275                                 DEBUG(DEBUG_WARNING,                                    \
 276                                       ("High latency %.6fs for operation %s on database %s\n",\
 277                                        l, operation, db->db_name));                     \
 278                         }                                                               \
 279                 }                                                                       \
 280         }
 281
 282
 283 struct ctdb_cluster_mutex_handle;
 284
 285 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
 286
 287 #define NUM_DB_PRIORITIES 3
 288 /* main state of the ctdb daemon */
 289 struct ctdb_context {
 290         struct tevent_context *ev;
 291         struct timeval ctdbd_start_time;
 292         struct timeval last_recovery_started;
 293         struct timeval last_recovery_finished;
 294         uint32_t recovery_mode;
 295         TALLOC_CTX *tickle_update_context;
 296         TALLOC_CTX *keepalive_ctx;
 297         TALLOC_CTX *check_public_ifaces_ctx;
 298         struct ctdb_tunable_list tunable;
 299         enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
 300         struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
 301         bool freeze_transaction_started;
 302         uint32_t freeze_transaction_id;
 303         ctdb_sock_addr *address;
 304         const char *name;
 305         const char *db_directory;
 306         const char *db_directory_persistent;
 307         const char *db_directory_state;
 308         struct tdb_wrap *db_persistent_health;
 309         uint32_t db_persistent_startup_generation;
 310         uint64_t db_persistent_check_errors;
 311         uint64_t max_persistent_check_errors;
 312         const char *transport;
 313         const char *recovery_lock;
 314         uint32_t pnn; /* our own pnn */
 315         uint32_t num_nodes;
 316         uint32_t num_connected;
 317         unsigned flags;
 318         uint32_t capabilities;
 319         struct reqid_context *idr;
 320         struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
 321         struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
 322         struct ctdb_interface *ifaces; /* list of local interfaces */
 323         char *err_msg;
 324         const struct ctdb_methods *methods; /* transport methods */
 325         const struct ctdb_upcalls *upcalls; /* transport upcalls */
 326         void *private_data; /* private to transport */
 327         struct ctdb_db_context *db_list;
 328         struct srvid_context *srv;
 329         struct ctdb_daemon_data daemon;
 330         struct ctdb_statistics statistics;
 331         struct ctdb_statistics statistics_current;
 332 #define MAX_STAT_HISTORY 100
 333         struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
 334         struct ctdb_vnn_map *vnn_map;
 335         uint32_t num_clients;
 336         uint32_t recovery_master;
 337         struct ctdb_client_ip *client_ip_list;
 338         bool do_checkpublicip;
 339         bool do_setsched;
 340         const char *event_script_dir;
 341         const char *notification_script;
 342         const char *default_public_interface;
 343         pid_t ctdbd_pid;
 344         pid_t recoverd_pid;
 345         enum ctdb_runstate runstate;
 346         struct ctdb_monitor_state *monitor;
 347         int start_as_disabled;
 348         int start_as_stopped;
 349         bool valgrinding;
 350         uint32_t *recd_ping_count;
 351         TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
 352         TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
 353
 354         TALLOC_CTX *event_script_ctx;
 355         int active_events;
 356
 357         struct ctdb_event_script_state *current_monitor;
 358         struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
 359
 360         TALLOC_CTX *banning_ctx;
 361
 362         struct ctdb_vacuum_child_context *vacuumers;
 363
 364         /* mapping from pid to ctdb_client * */
 365         struct ctdb_client_pid_list *client_pids;
 366
 367         /* used in the recovery daemon to remember the ip allocation */
 368         struct trbt_tree *ip_tree;
 369
 370         /* Used to defer db attach requests while in recovery mode */
 371         struct ctdb_deferred_attach_context *deferred_attach;
 372
 373         /* if we are a child process, do we have a domain socket to send controls on */
 374         bool can_send_controls;
 375
 376         /* list of event script callback functions that are active */
 377         struct event_script_callback *script_callbacks;
 378
 379         struct ctdb_reloadips_handle *reload_ips;
 380
 381         const char *nodes_file;
 382         const char *public_addresses_file;
 383         struct trbt_tree *child_processes;
 384
 385         /* Used for locking record/db/alldb */
 386         struct lock_context *lock_current;
 387         struct lock_context *lock_pending;
 388 };
 389
 390 struct ctdb_db_context {
 391         struct ctdb_db_context *next, *prev;
 392         struct ctdb_context *ctdb;
 393         uint32_t db_id;
 394         uint32_t priority;
 395         bool persistent;
 396         bool readonly; /* Do we support read-only delegations ? */
 397         bool sticky; /* Do we support sticky records ? */
 398         const char *db_name;
 399         const char *db_path;
 400         struct tdb_wrap *ltdb;
 401         struct tdb_context *rottdb; /* ReadOnly tracking TDB */
 402         struct ctdb_registered_call *calls; /* list of registered calls */
 403         uint32_t seqnum;
 404         struct tevent_timer *seqnum_update;
 405         struct ctdb_traverse_local_handle *traverse;
 406         struct ctdb_vacuum_handle *vacuum_handle;
 407         char *unhealthy_reason;
 408         int pending_requests;
 409         struct revokechild_handle *revokechild_active;
 410         struct ctdb_persistent_state *persistent_state;
 411         struct trbt_tree *delete_queue;
 412         struct trbt_tree *sticky_records;
 413         int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
 414                                   TDB_DATA key,
 415                                   struct ctdb_ltdb_header *header,
 416                                   TDB_DATA data);
 417
 418         /* used to track which records we are currently fetching
 419            so we can avoid sending duplicate fetch requests
 420         */
 421         struct trbt_tree *deferred_fetch;
 422         struct trbt_tree *defer_dmaster;
 423
 424         struct ctdb_db_statistics_old statistics;
 425
 426         struct lock_context *lock_current;
 427         struct lock_context *lock_pending;
 428         int lock_num_current;
 429
 430         struct ctdb_call_state *pending_calls;
 431
 432         enum ctdb_freeze_mode freeze_mode;
 433         struct ctdb_db_freeze_handle *freeze_handle;
 434         bool freeze_transaction_started;
 435         uint32_t freeze_transaction_id;
 436         uint32_t generation;
 437
 438         bool push_started;
 439         void *push_state;
 440 };
 441
 442
 443 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
 444           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 445           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 446           return -1; }} while (0)
 447
 448 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
 449           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 450           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 451           return; }} while (0)
 452
 453 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
 454           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 455           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 456           return NULL; }} while (0)
 457
 458 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
 459           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 460           ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
 461           }} while (0)
 462
 463
 464 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
 465
 466 /*
 467   state of a in-progress ctdb call
 468 */
 469 struct ctdb_call_state {
 470         struct ctdb_call_state *next, *prev;
 471         enum call_state state;
 472         uint32_t reqid;
 473         struct ctdb_req_call_old *c;
 474         struct ctdb_db_context *ctdb_db;
 475         const char *errmsg;
 476         struct ctdb_call *call;
 477         uint32_t generation;
 478         struct {
 479                 void (*fn)(struct ctdb_call_state *);
 480                 void *private_data;
 481         } async;
 482 };
 483
 484 /* internal prototypes */
 485
 486 #define CHECK_CONTROL_DATA_SIZE(size) do { \
 487  if (indata.dsize != size) { \
 488          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
 489                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 490          return -1; \
 491  } \
 492  } while (0)
 493
 494 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
 495  if (indata.dsize < size) { \
 496          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
 497                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 498          return -1; \
 499  } \
 500  } while (0)
 501
 502 /*
 503   state of a in-progress ctdb call in client
 504 */
 505 struct ctdb_client_call_state {
 506         enum call_state state;
 507         uint32_t reqid;
 508         struct ctdb_db_context *ctdb_db;
 509         struct ctdb_call *call;
 510         struct {
 511                 void (*fn)(struct ctdb_client_call_state *);
 512                 void *private_data;
 513         } async;
 514 };
 515
 516 extern int script_log_level;
 517 extern bool fast_start;
 518 extern const char *ctdbd_pidfile;
 519
 520 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
 521
 522
 523 /* from tcp/ and ib/ */
 524
 525 int ctdb_tcp_init(struct ctdb_context *ctdb);
 526 int ctdb_ibw_init(struct ctdb_context *ctdb);
 527
 528 /* from ctdb_banning.c */
 529
 530 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
 531 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
 532 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
 533 void ctdb_ban_self(struct ctdb_context *ctdb);
 534
 535 /* from ctdb_call.c */
 536
 537 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
 538
 539 void ctdb_request_dmaster(struct ctdb_context *ctdb,
 540                           struct ctdb_req_header *hdr);
 541 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
 542                         struct ctdb_req_header *hdr);
 543 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 544 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 545 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 546
 547 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
 548 void ctdb_call_resend_all(struct ctdb_context *ctdb);
 549
 550 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
 551                                              struct ctdb_call *call,
 552                                              struct ctdb_ltdb_header *header,
 553                                              TDB_DATA *data);
 554
 555 struct ctdb_call_state *ctdb_daemon_call_send_remote(
 556                                         struct ctdb_db_context *ctdb_db,
 557                                         struct ctdb_call *call,
 558                                         struct ctdb_ltdb_header *header);
 559 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
 560                           struct ctdb_call *call);
 561
 562 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
 563
 564 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
 565                                 struct ctdb_db_context *ctdb_db,
 566                                 TDB_DATA key, struct ctdb_ltdb_header *header,
 567                                 TDB_DATA data);
 568
 569 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
 570                                   struct ctdb_db_context *ctdb_db,
 571                                   TDB_DATA key, struct ctdb_req_header *hdr,
 572                                   deferred_requeue_fn fn, void *call_context);
 573
 574 /* from server/ctdb_control.c */
 575
 576 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
 577
 578 void ctdb_request_control_reply(struct ctdb_context *ctdb,
 579                                 struct ctdb_req_control_old *c,
 580                                 TDB_DATA *outdata, int32_t status,
 581                                 const char *errormsg);
 582
 583 void ctdb_request_control(struct ctdb_context *ctdb,
 584                           struct ctdb_req_header *hdr);
 585 void ctdb_reply_control(struct ctdb_context *ctdb,
 586                         struct ctdb_req_header *hdr);
 587
 588 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
 589                              uint64_t srvid, uint32_t opcode,
 590                              uint32_t client_id, uint32_t flags,
 591                              TDB_DATA data,
 592                              ctdb_control_callback_fn_t callback,
 593                              void *private_data);
 594
 595 /* from server/ctdb_daemon.c */
 596
 597 int daemon_register_message_handler(struct ctdb_context *ctdb,
 598                                     uint32_t client_id, uint64_t srvid);
 599 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
 600                                       uint32_t client_id, uint64_t srvid);
 601 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
 602                         TDB_DATA *outdata);
 603
 604 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
 605
 606 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
 607                                                  TALLOC_CTX *mem_ctx,
 608                                                  enum ctdb_operation operation,
 609                                                  size_t length, size_t slength,
 610                                                  const char *type);
 611
 612 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
 613         (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
 614                                          sizeof(type), #type)
 615
 616 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
 617                                  struct ctdb_node *node);
 618
 619 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
 620                          ctdb_fn_t fn, int id);
 621
 622 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
 623                              uint64_t srvid, TDB_DATA data);
 624
 625 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
 626                                      uint32_t client_id, TDB_DATA indata);
 627 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
 628                                        uint32_t client_id, TDB_DATA indata);
 629
 630 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
 631                                             pid_t pid);
 632
 633 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
 634
 635 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
 636                               TDB_DATA indata, TDB_DATA *outdata);
 637
 638 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
 639
 640 int switch_from_server_to_client(struct ctdb_context *ctdb,
 641                                  const char *fmt, ...);
 642
 643 /* From server/ctdb_fork.c */
 644
 645 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
 646
 647 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
 648
 649 pid_t ctdb_fork(struct ctdb_context *ctdb);
 650
 651 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
 652
 653 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
 654
 655 /* from server/ctdb_freeze.c */
 656
 657 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
 658                                struct ctdb_req_control_old *c,
 659                                uint32_t db_id, bool *async_reply);
 660 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
 661
 662 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
 663                             struct ctdb_req_control_old *c, bool *async_reply);
 664 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
 665                           bool check_recmode);
 666
 667 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
 668
 669 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
 670                                           TDB_DATA indata);
 671 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
 672                                            TDB_DATA indata);
 673 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
 674                                            TDB_DATA indata);
 675
 676 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
 677 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
 678 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
 679
 680 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
 681
 682 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
 683 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
 684 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
 685
 686 /* from server/ctdb_keepalive.c */
 687
 688 void ctdb_start_keepalive(struct ctdb_context *ctdb);
 689 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
 690
 691 /* from server/ctdb_lock.c */
 692
 693 struct lock_request;
 694
 695 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
 696                                  void *private_data);
 697
 698 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
 699                           ctdb_db_handler_t handler, void *private_data);
 700 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
 701                      void *private_data);
 702
 703 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
 704 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
 705
 706 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
 707 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
 708
 709 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
 710                                       struct ctdb_db_context *ctdb_db,
 711                                       TDB_DATA key,
 712                                       bool auto_mark,
 713                                       void (*callback)(void *, bool),
 714                                       void *private_data);
 715
 716 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
 717                                   struct ctdb_db_context *ctdb_db,
 718                                   bool auto_mark,
 719                                   void (*callback)(void *, bool),
 720                                   void *private_data);
 721
 722 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
 723                                           struct ctdb_context *ctdb,
 724                                           uint32_t priority,
 725                                           bool auto_mark,
 726                                           void (*callback)(void *, bool),
 727                                           void *private_data);
 728
 729 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
 730                                      struct ctdb_context *ctdb,
 731                                      bool auto_mark,
 732                                      void (*callback)(void *, bool),
 733                                      void *private_data);
 734
 735 /* from ctdb_logging.c */
 736
 737 extern const char *debug_extra;
 738
 739 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
 740                                    const char *logging,
 741                                    const char *app_name);
 742
 743 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
 744
 745 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
 746
 747 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
 748                                                struct ctdb_context *ctdb,
 749                                                const char *log_prefix,
 750                                                const char *helper,
 751                                                int helper_argc,
 752                                                const char **helper_argv,
 753                                                void (*logfn)(const char *,
 754                                                              uint16_t, void *),
 755                                                void *logfn_private, pid_t *pid);
 756
 757 int ctdb_set_child_logging(struct ctdb_context *ctdb);
 758 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
 759
 760 /* from ctdb_logging_file.c */
 761
 762 void ctdb_log_init_file(void);
 763
 764 /* from ctdb_logging_syslog.c */
 765
 766 void ctdb_log_init_syslog(void);
 767
 768 /* from ctdb_ltdb_server.c */
 769
 770 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
 771                            TDB_DATA key, struct ctdb_req_header *hdr,
 772                            void (*recv_pkt)(void *, struct ctdb_req_header *),
 773                            void *recv_context, bool ignore_generation);
 774
 775 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
 776                                  TDB_DATA key, struct ctdb_ltdb_header *header,
 777                                  struct ctdb_req_header *hdr, TDB_DATA *data,
 778                                  void (*recv_pkt)(void *, struct ctdb_req_header *),
 779                                  void *recv_context, bool ignore_generation);
 780
 781 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
 782                                 struct ctdb_db_context *ctdb_db);
 783 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
 784                                   struct ctdb_db_context *ctdb_db,
 785                                   const char *reason,/* NULL means healthy */
 786                                   int num_healthy_nodes);
 787 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
 788
 789 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
 790                                     TDB_DATA indata);
 791 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
 792                                    TDB_DATA indata, TDB_DATA *outdata);
 793
 794 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
 795                          struct ctdb_db_context *ctdb_db);
 796
 797 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
 798
 799 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
 800                                TDB_DATA *outdata, uint64_t tdb_flags,
 801                                bool persistent, uint32_t client_id,
 802                                struct ctdb_req_control_old *c,
 803                                bool *async_reply);
 804 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
 805                                uint32_t client_id);
 806
 807 int ctdb_attach_databases(struct ctdb_context *ctdb);
 808
 809 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
 810                                 uint32_t srcnode);
 811 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
 812
 813 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
 814                                      uint32_t client_id);
 815
 816 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
 817                        struct ctdb_db_context *ctdb_db);
 818
 819 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
 820
 821 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
 822                                        uint32_t db_id, TDB_DATA *outdata);
 823
 824 /* from ctdb_monitor.c */
 825
 826 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
 827 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
 828
 829 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
 830 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
 831 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
 832
 833 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
 834
 835 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
 836
 837 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
 838 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
 839
 840 /* from ctdb_persistent.c */
 841
 842 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
 843
 844 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
 845                                    struct ctdb_req_control_old *c,
 846                                    TDB_DATA recdata, bool *async_reply);
 847
 848 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
 849                                              struct ctdb_req_control_old *c,
 850                                              TDB_DATA recdata);
 851 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
 852                                               struct ctdb_req_control_old *c,
 853                                               TDB_DATA recdata);
 854
 855 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
 856                                    TDB_DATA indata, TDB_DATA *outdata);
 857
 858 /* from ctdb_recover.c */
 859
 860 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 861                            TDB_DATA indata, TDB_DATA *outdata);
 862 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 863                            TDB_DATA indata, TDB_DATA *outdata);
 864
 865 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
 866                           TDB_DATA indata, TDB_DATA *outdata);
 867 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
 868                             TDB_DATA indata, TDB_DATA *outdata);
 869
 870 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
 871
 872 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
 873                              TDB_DATA *outdata);
 874 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
 875
 876 int32_t ctdb_control_db_pull(struct ctdb_context *ctdb,
 877                              struct ctdb_req_control_old *c,
 878                              TDB_DATA indata, TDB_DATA *outdata);
 879 int32_t ctdb_control_db_push_start(struct ctdb_context *ctdb,
 880                                    TDB_DATA indata);
 881 int32_t ctdb_control_db_push_confirm(struct ctdb_context *ctdb,
 882                                      TDB_DATA indata, TDB_DATA *outdata);
 883
 884 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
 885
 886 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
 887                                  struct ctdb_req_control_old *c,
 888                                  TDB_DATA indata, bool *async_reply,
 889                                  const char **errormsg);
 890
 891 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
 892                                  struct ctdb_req_control_old *c,
 893                                  bool *async_reply);
 894 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
 895                                  struct ctdb_req_control_old *c,
 896                                  bool *async_reply);
 897
 898 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
 899                                         TDB_DATA indata, TDB_DATA *outdata);
 900 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
 901                                      TDB_DATA indata, TDB_DATA *outdata);
 902
 903 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
 904                                       TDB_DATA *outdata);
 905
 906 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
 907 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
 908                                    uint32_t opcode, TDB_DATA indata);
 909
 910 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
 911 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
 912
 913 /* from ctdb_recoverd.c */
 914
 915 int ctdb_start_recoverd(struct ctdb_context *ctdb);
 916 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
 917
 918 /* from ctdb_server.c */
 919
 920 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
 921
 922 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
 923
 924 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
 925
 926 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
 927
 928 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
 929
 930 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
 931
 932 void ctdb_node_dead(struct ctdb_node *node);
 933 void ctdb_node_connected(struct ctdb_node *node);
 934
 935 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 936 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
 937                               struct ctdb_req_header *hdr, unsigned opcode);
 938
 939 /* from ctdb_serverids.c */
 940
 941 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
 942                                         uint32_t client_id, TDB_DATA indata);
 943 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
 944                                      TDB_DATA indata);
 945 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
 946                                           TDB_DATA indata);
 947 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
 948                                         TDB_DATA *outdata);
 949
 950 /* from ctdb_statistics.c */
 951
 952 int ctdb_statistics_init(struct ctdb_context *ctdb);
 953
 954 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
 955                                       struct ctdb_req_control_old *c,
 956                                       TDB_DATA *outdata);
 957
 958 /* from ctdb_takeover.c */
 959
 960 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
 961                                  struct ctdb_req_control_old *c,
 962                                  TDB_DATA indata,
 963                                  bool *async_reply);
 964 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
 965                                  struct ctdb_req_control_old *c,
 966                                  TDB_DATA indata,
 967                                  bool *async_reply);
 968 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
 969                                  struct ctdb_req_control_old *c,
 970                                  bool *async_reply);
 971
 972 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
 973
 974 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map_old *nodemap,
 975                       uint32_t *force_rebalance_nodes);
 976
 977 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
 978                                 TDB_DATA indata);
 979 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
 980                              bool tcp_update_needed);
 981 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
 982 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
 983
 984 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
 985
 986 void ctdb_release_all_ips(struct ctdb_context *ctdb);
 987
 988 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
 989                                     struct ctdb_req_control_old *c,
 990                                     TDB_DATA *outdata);
 991 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
 992                                         struct ctdb_req_control_old *c,
 993                                         TDB_DATA indata, TDB_DATA *outdata);
 994
 995 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
 996                                 struct ctdb_req_control_old *c,
 997                                 TDB_DATA *outdata);
 998 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
 999                                     struct ctdb_req_control_old *c,
1000                                     TDB_DATA indata);
1001
1002 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
1003                                          TDB_DATA indata);
1004 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
1005                                          TDB_DATA indata, TDB_DATA *outdata);
1006
1007 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1008
1009 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
1010                                        TDB_DATA indata);
1011
1012 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
1013                                         TDB_DATA indata);
1014 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1015                                         struct ctdb_req_control_old *c,
1016                                         TDB_DATA recdata, bool *async_reply);
1017
1018 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
1019                                        struct ctdb_req_control_old *c,
1020                                        bool *async_reply);
1021
1022 /* from ctdb_traverse.c */
1023
1024 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
1025                                       TDB_DATA data, TDB_DATA *outdata);
1026 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
1027                                   TDB_DATA data, TDB_DATA *outdata);
1028 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
1029                                    TDB_DATA data, TDB_DATA *outdata);
1030 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1031                                     TDB_DATA *outdata, uint32_t srcnode);
1032
1033 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1034                                         TDB_DATA indata, TDB_DATA *outdata,
1035                                         uint32_t srcnode, uint32_t client_id);
1036 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
1037                                     TDB_DATA indata, TDB_DATA *outdata,
1038                                     uint32_t srcnode, uint32_t client_id);
1039
1040 /* from ctdb_tunables.c */
1041
1042 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1043
1044 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1045                                  TDB_DATA *outdata);
1046 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1047 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
1048                                    TDB_DATA *outdata);
1049
1050 /* from ctdb_update_record.c */
1051
1052 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1053                                    struct ctdb_req_control_old *c,
1054                                    TDB_DATA recdata, bool *async_reply);
1055
1056 /* from ctdb_uptime.c */
1057
1058 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
1059
1060 /* from ctdb_vacuum.c */
1061
1062 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1063 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1064
1065 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1066                                            TDB_DATA indata);
1067 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1068                                          const struct ctdb_ltdb_header *hdr,
1069                                          TDB_DATA key);
1070
1071 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1072                                          const struct ctdb_ltdb_header *hdr,
1073                                          const TDB_DATA key);
1074
1075 /* from eventscript.c */
1076
1077 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1078                                              uint32_t call_type,
1079                                              TDB_DATA *outdata);
1080
1081 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1082                                TALLOC_CTX *mem_ctx,
1083                                void (*callback)(struct ctdb_context *,
1084                                                 int, void *),
1085                                void *private_data,
1086                                enum ctdb_event call,
1087                                const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1088
1089 int ctdb_event_script_args(struct ctdb_context *ctdb,
1090                            enum ctdb_event call,
1091                            const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1092
1093 int ctdb_event_script(struct ctdb_context *ctdb,
1094                       enum ctdb_event call);
1095
1096 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1097                               struct ctdb_req_control_old *c,
1098                               TDB_DATA data, bool *async_reply);
1099
1100 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1101 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1102
1103 #endif