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         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 dameon to track when a node should be banned */
 130         struct ctdb_banning_state *ban_state;
 131 };
 132
 133 /*
 134   transport specific methods
 135 */
 136 struct ctdb_methods {
 137         int (*initialise)(struct ctdb_context *); /* initialise transport structures */
 138         int (*start)(struct ctdb_context *); /* start the transport */
 139         int (*add_node)(struct ctdb_node *); /* setup a new node */
 140         int (*connect_node)(struct ctdb_node *); /* connect to node */
 141         int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
 142         void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
 143         void (*shutdown)(struct ctdb_context *); /* shutdown transport */
 144         void (*restart)(struct ctdb_node *); /* stop and restart the connection */
 145 };
 146
 147 /*
 148   transport calls up to the ctdb layer
 149 */
 150 struct ctdb_upcalls {
 151         /* recv_pkt is called when a packet comes in */
 152         void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
 153
 154         /* node_dead is called when an attempt to send to a node fails */
 155         void (*node_dead)(struct ctdb_node *);
 156
 157         /* node_connected is called when a connection to a node is established */
 158         void (*node_connected)(struct ctdb_node *);
 159 };
 160
 161 /* additional data required for the daemon mode */
 162 struct ctdb_daemon_data {
 163         int sd;
 164         char *name;
 165         struct ctdb_queue *queue;
 166 };
 167
 168
 169 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
 170         {                                                                               \
 171                 if (value > ctdb->statistics.counter) {                                 \
 172                         ctdb->statistics.counter = c->hopcount;                         \
 173                 }                                                                       \
 174                 if (value > ctdb->statistics_current.counter) {                         \
 175                         ctdb->statistics_current.counter = c->hopcount;                 \
 176                 }                                                                       \
 177         }
 178
 179 #define CTDB_INCREMENT_STAT(ctdb, counter) \
 180         {                                                                               \
 181                 ctdb->statistics.counter++;                                             \
 182                 ctdb->statistics_current.counter++;                                     \
 183         }
 184
 185 #define CTDB_DECREMENT_STAT(ctdb, counter) \
 186         {                                                                               \
 187                 if (ctdb->statistics.counter > 0)                                       \
 188                         ctdb->statistics.counter--;                                     \
 189                 if (ctdb->statistics_current.counter > 0)                               \
 190                         ctdb->statistics_current.counter--;                             \
 191         }
 192
 193 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
 194         {                                                                               \
 195                 ctdb_db->statistics.counter++;                                          \
 196         }
 197
 198 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
 199         {                                                                               \
 200                 if (ctdb_db->statistics.counter > 0)                                    \
 201                         ctdb_db->statistics.counter--;                                  \
 202         }
 203
 204 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
 205         {                                                                               \
 206                 if (value > ctdb->statistics.counter.max)                               \
 207                         ctdb->statistics.counter.max = value;                           \
 208                 if (value > ctdb->statistics_current.counter.max)                       \
 209                         ctdb->statistics_current.counter.max = value;                   \
 210                                                                                         \
 211                 if (ctdb->statistics.counter.num == 0 ||                                \
 212                     value < ctdb->statistics.counter.min)                               \
 213                         ctdb->statistics.counter.min = value;                           \
 214                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 215                     value < ctdb->statistics_current.counter.min)                       \
 216                         ctdb->statistics_current.counter.min = value;                   \
 217                                                                                         \
 218                 ctdb->statistics.counter.total += value;                                \
 219                 ctdb->statistics_current.counter.total += value;                        \
 220                                                                                         \
 221                 ctdb->statistics.counter.num++;                                         \
 222                 ctdb->statistics_current.counter.num++;                                 \
 223                                                                                         \
 224                 if (ctdb->tunable.reclock_latency_ms != 0) {                            \
 225                         if (value*1000 > ctdb->tunable.reclock_latency_ms) {            \
 226                                 DEBUG(DEBUG_ERR,                                        \
 227                                       ("High RECLOCK latency %fs for operation %s\n",   \
 228                                        value, name));                                   \
 229                         }                                                               \
 230                 }                                                                       \
 231         }
 232
 233 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value)                      \
 234         {                                                                               \
 235                 if (value > ctdb_db->statistics.counter.max)                            \
 236                         ctdb_db->statistics.counter.max = value;                        \
 237                 if (ctdb_db->statistics.counter.num == 0 ||                             \
 238                     value < ctdb_db->statistics.counter.min)                            \
 239                         ctdb_db->statistics.counter.min = value;                        \
 240                                                                                         \
 241                 ctdb_db->statistics.counter.total += value;                             \
 242                 ctdb_db->statistics.counter.num++;                                      \
 243                                                                                         \
 244                 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) {                       \
 245                         if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) {       \
 246                                 DEBUG(DEBUG_ERR,                                        \
 247                                       ("High latency %.6fs for operation %s on database %s\n",\
 248                                        value, operation, ctdb_db->db_name));            \
 249                         }                                                               \
 250                 }                                                                       \
 251         }
 252
 253 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
 254         {                                                                               \
 255                 double l = timeval_elapsed(&t);                                         \
 256                                                                                         \
 257                 if (l > ctdb->statistics.counter.max)                                   \
 258                         ctdb->statistics.counter.max = l;                               \
 259                 if (l > ctdb->statistics_current.counter.max)                           \
 260                         ctdb->statistics_current.counter.max = l;                       \
 261                                                                                         \
 262                 if (ctdb->statistics.counter.num == 0 ||                                \
 263                     l < ctdb->statistics.counter.min)                                   \
 264                         ctdb->statistics.counter.min = l;                               \
 265                 if (ctdb->statistics_current.counter.num == 0 ||                        \
 266                     l < ctdb->statistics_current.counter.min)                           \
 267                         ctdb->statistics_current.counter.min = l;                       \
 268                                                                                         \
 269                 ctdb->statistics.counter.total += l;                                    \
 270                 ctdb->statistics_current.counter.total += l;                            \
 271                                                                                         \
 272                 ctdb->statistics.counter.num++;                                         \
 273                 ctdb->statistics_current.counter.num++;                                 \
 274                                                                                         \
 275                 if (ctdb->tunable.log_latency_ms != 0) {                                \
 276                         if (l*1000 > ctdb->tunable.log_latency_ms) {                    \
 277                                 DEBUG(DEBUG_WARNING,                                    \
 278                                       ("High latency %.6fs for operation %s on database %s\n",\
 279                                        l, operation, db->db_name));                     \
 280                         }                                                               \
 281                 }                                                                       \
 282         }
 283
 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         char *recovery_lock_file;
 314         int recovery_lock_fd;
 315         uint32_t pnn; /* our own pnn */
 316         uint32_t num_nodes;
 317         uint32_t num_connected;
 318         unsigned flags;
 319         uint32_t capabilities;
 320         struct reqid_context *idr;
 321         struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
 322         struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
 323         struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
 324         struct ctdb_interface *ifaces; /* list of local interfaces */
 325         char *err_msg;
 326         const struct ctdb_methods *methods; /* transport methods */
 327         const struct ctdb_upcalls *upcalls; /* transport upcalls */
 328         void *private_data; /* private to transport */
 329         struct ctdb_db_context *db_list;
 330         struct srvid_context *srv;
 331         struct ctdb_daemon_data daemon;
 332         struct ctdb_statistics statistics;
 333         struct ctdb_statistics statistics_current;
 334 #define MAX_STAT_HISTORY 100
 335         struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
 336         struct ctdb_vnn_map *vnn_map;
 337         uint32_t num_clients;
 338         uint32_t recovery_master;
 339         struct ctdb_client_ip *client_ip_list;
 340         bool do_checkpublicip;
 341         struct trbt_tree *server_ids;
 342         bool do_setsched;
 343         const char *event_script_dir;
 344         const char *notification_script;
 345         const char *default_public_interface;
 346         pid_t ctdbd_pid;
 347         pid_t recoverd_pid;
 348         enum ctdb_runstate runstate;
 349         struct ctdb_monitor_state *monitor;
 350         int start_as_disabled;
 351         int start_as_stopped;
 352         bool valgrinding;
 353         uint32_t *recd_ping_count;
 354         TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
 355         TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
 356
 357         TALLOC_CTX *event_script_ctx;
 358         int active_events;
 359
 360         struct ctdb_event_script_state *current_monitor;
 361         struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
 362
 363         TALLOC_CTX *banning_ctx;
 364
 365         struct ctdb_vacuum_child_context *vacuumers;
 366
 367         /* mapping from pid to ctdb_client * */
 368         struct ctdb_client_pid_list *client_pids;
 369
 370         /* used in the recovery daemon to remember the ip allocation */
 371         struct trbt_tree *ip_tree;
 372
 373         /* Used to defer db attach requests while in recovery mode */
 374         struct ctdb_deferred_attach_context *deferred_attach;
 375
 376         /* if we are a child process, do we have a domain socket to send controls on */
 377         bool can_send_controls;
 378
 379         /* list of event script callback functions that are active */
 380         struct event_script_callback *script_callbacks;
 381
 382         struct ctdb_reloadips_handle *reload_ips;
 383
 384         const char *nodes_file;
 385         const char *public_addresses_file;
 386         struct trbt_tree *child_processes;
 387
 388         /* Used for locking record/db/alldb */
 389         struct lock_context *lock_current;
 390         struct lock_context *lock_pending;
 391 };
 392
 393 struct ctdb_db_context {
 394         struct ctdb_db_context *next, *prev;
 395         struct ctdb_context *ctdb;
 396         uint32_t db_id;
 397         uint32_t priority;
 398         bool persistent;
 399         bool readonly; /* Do we support read-only delegations ? */
 400         bool sticky; /* Do we support sticky records ? */
 401         const char *db_name;
 402         const char *db_path;
 403         struct tdb_wrap *ltdb;
 404         struct tdb_context *rottdb; /* ReadOnly tracking TDB */
 405         struct ctdb_registered_call *calls; /* list of registered calls */
 406         uint32_t seqnum;
 407         struct tevent_timer *seqnum_update;
 408         struct ctdb_traverse_local_handle *traverse;
 409         struct ctdb_vacuum_handle *vacuum_handle;
 410         char *unhealthy_reason;
 411         int pending_requests;
 412         struct revokechild_handle *revokechild_active;
 413         struct ctdb_persistent_state *persistent_state;
 414         struct trbt_tree *delete_queue;
 415         struct trbt_tree *sticky_records;
 416         int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
 417                                   TDB_DATA key,
 418                                   struct ctdb_ltdb_header *header,
 419                                   TDB_DATA data);
 420
 421         /* used to track which records we are currently fetching
 422            so we can avoid sending duplicate fetch requests
 423         */
 424         struct trbt_tree *deferred_fetch;
 425         struct trbt_tree *defer_dmaster;
 426
 427         struct ctdb_db_statistics_old statistics;
 428
 429         struct lock_context *lock_current;
 430         struct lock_context *lock_pending;
 431         int lock_num_current;
 432
 433         struct ctdb_call_state *pending_calls;
 434
 435         enum ctdb_freeze_mode freeze_mode;
 436         struct ctdb_db_freeze_handle *freeze_handle;
 437         bool freeze_transaction_started;
 438         uint32_t freeze_transaction_id;
 439         uint32_t generation;
 440
 441         bool push_started;
 442         void *push_state;
 443 };
 444
 445
 446 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
 447           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 448           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 449           return -1; }} while (0)
 450
 451 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
 452           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 453           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 454           return; }} while (0)
 455
 456 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
 457           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 458           ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
 459           return NULL; }} while (0)
 460
 461 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
 462           DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
 463           ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
 464           }} while (0)
 465
 466
 467 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
 468
 469 /*
 470   state of a in-progress ctdb call
 471 */
 472 struct ctdb_call_state {
 473         struct ctdb_call_state *next, *prev;
 474         enum call_state state;
 475         uint32_t reqid;
 476         struct ctdb_req_call_old *c;
 477         struct ctdb_db_context *ctdb_db;
 478         const char *errmsg;
 479         struct ctdb_call *call;
 480         uint32_t generation;
 481         struct {
 482                 void (*fn)(struct ctdb_call_state *);
 483                 void *private_data;
 484         } async;
 485 };
 486
 487 /* internal prototypes */
 488
 489 #define CHECK_CONTROL_DATA_SIZE(size) do { \
 490  if (indata.dsize != size) { \
 491          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
 492                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 493          return -1; \
 494  } \
 495  } while (0)
 496
 497 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
 498  if (indata.dsize < size) { \
 499          DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
 500                   opcode, (unsigned)indata.dsize, (unsigned)size));     \
 501          return -1; \
 502  } \
 503  } while (0)
 504
 505 /*
 506   state of a in-progress ctdb call in client
 507 */
 508 struct ctdb_client_call_state {
 509         enum call_state state;
 510         uint32_t reqid;
 511         struct ctdb_db_context *ctdb_db;
 512         struct ctdb_call *call;
 513         struct {
 514                 void (*fn)(struct ctdb_client_call_state *);
 515                 void *private_data;
 516         } async;
 517 };
 518
 519 extern int script_log_level;
 520 extern bool fast_start;
 521 extern const char *ctdbd_pidfile;
 522
 523 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
 524
 525
 526 /* from tcp/ and ib/ */
 527
 528 int ctdb_tcp_init(struct ctdb_context *ctdb);
 529 int ctdb_ibw_init(struct ctdb_context *ctdb);
 530
 531 /* from ctdb_banning.c */
 532
 533 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
 534 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
 535 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
 536 void ctdb_ban_self(struct ctdb_context *ctdb);
 537
 538 /* from ctdb_call.c */
 539
 540 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
 541
 542 void ctdb_request_dmaster(struct ctdb_context *ctdb,
 543                           struct ctdb_req_header *hdr);
 544 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
 545                         struct ctdb_req_header *hdr);
 546 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 547 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 548 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 549
 550 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
 551 void ctdb_call_resend_all(struct ctdb_context *ctdb);
 552
 553 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
 554                                              struct ctdb_call *call,
 555                                              struct ctdb_ltdb_header *header,
 556                                              TDB_DATA *data);
 557
 558 struct ctdb_call_state *ctdb_daemon_call_send_remote(
 559                                         struct ctdb_db_context *ctdb_db,
 560                                         struct ctdb_call *call,
 561                                         struct ctdb_ltdb_header *header);
 562 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
 563                           struct ctdb_call *call);
 564
 565 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
 566
 567 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
 568                                 struct ctdb_db_context *ctdb_db,
 569                                 TDB_DATA key, struct ctdb_ltdb_header *header,
 570                                 TDB_DATA data);
 571
 572 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
 573                                   struct ctdb_db_context *ctdb_db,
 574                                   TDB_DATA key, struct ctdb_req_header *hdr,
 575                                   deferred_requeue_fn fn, void *call_context);
 576
 577 /* from server/ctdb_control.c */
 578
 579 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
 580
 581 void ctdb_request_control_reply(struct ctdb_context *ctdb,
 582                                 struct ctdb_req_control_old *c,
 583                                 TDB_DATA *outdata, int32_t status,
 584                                 const char *errormsg);
 585
 586 void ctdb_request_control(struct ctdb_context *ctdb,
 587                           struct ctdb_req_header *hdr);
 588 void ctdb_reply_control(struct ctdb_context *ctdb,
 589                         struct ctdb_req_header *hdr);
 590
 591 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
 592                              uint64_t srvid, uint32_t opcode,
 593                              uint32_t client_id, uint32_t flags,
 594                              TDB_DATA data,
 595                              ctdb_control_callback_fn_t callback,
 596                              void *private_data);
 597
 598 /* from server/ctdb_daemon.c */
 599
 600 int daemon_register_message_handler(struct ctdb_context *ctdb,
 601                                     uint32_t client_id, uint64_t srvid);
 602 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
 603                                       uint32_t client_id, uint64_t srvid);
 604 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
 605                         TDB_DATA *outdata);
 606
 607 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
 608
 609 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
 610                                                  TALLOC_CTX *mem_ctx,
 611                                                  enum ctdb_operation operation,
 612                                                  size_t length, size_t slength,
 613                                                  const char *type);
 614
 615 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
 616         (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
 617                                          sizeof(type), #type)
 618
 619 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
 620                                  struct ctdb_node *node);
 621
 622 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
 623                          ctdb_fn_t fn, int id);
 624
 625 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
 626                              uint64_t srvid, TDB_DATA data);
 627
 628 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
 629                                      uint32_t client_id, TDB_DATA indata);
 630 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
 631                                        uint32_t client_id, TDB_DATA indata);
 632
 633 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
 634                                             pid_t pid);
 635
 636 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
 637
 638 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
 639                               TDB_DATA indata, TDB_DATA *outdata);
 640
 641 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
 642
 643 int switch_from_server_to_client(struct ctdb_context *ctdb,
 644                                  const char *fmt, ...);
 645
 646 /* From server/ctdb_fork.c */
 647
 648 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
 649
 650 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
 651
 652 pid_t ctdb_fork(struct ctdb_context *ctdb);
 653
 654 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
 655
 656 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
 657
 658 /* from server/ctdb_freeze.c */
 659
 660 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
 661                                struct ctdb_req_control_old *c,
 662                                uint32_t db_id, bool *async_reply);
 663 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
 664
 665 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
 666                             struct ctdb_req_control_old *c, bool *async_reply);
 667 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
 668                           bool check_recmode);
 669
 670 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
 671
 672 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
 673                                           TDB_DATA indata);
 674 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
 675                                            TDB_DATA indata);
 676 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
 677                                            TDB_DATA indata);
 678
 679 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
 680 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
 681 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
 682
 683 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
 684
 685 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
 686 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
 687 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
 688
 689 /* from server/ctdb_keepalive.c */
 690
 691 void ctdb_start_keepalive(struct ctdb_context *ctdb);
 692 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
 693
 694 /* from server/ctdb_lock.c */
 695
 696 struct lock_request;
 697
 698 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
 699                                  void *private_data);
 700
 701 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
 702                           ctdb_db_handler_t handler, void *private_data);
 703 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
 704                      void *private_data);
 705
 706 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
 707 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
 708
 709 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
 710 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
 711
 712 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
 713                                       struct ctdb_db_context *ctdb_db,
 714                                       TDB_DATA key,
 715                                       bool auto_mark,
 716                                       void (*callback)(void *, bool),
 717                                       void *private_data);
 718
 719 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
 720                                   struct ctdb_db_context *ctdb_db,
 721                                   bool auto_mark,
 722                                   void (*callback)(void *, bool),
 723                                   void *private_data);
 724
 725 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
 726                                           struct ctdb_context *ctdb,
 727                                           uint32_t priority,
 728                                           bool auto_mark,
 729                                           void (*callback)(void *, bool),
 730                                           void *private_data);
 731
 732 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
 733                                      struct ctdb_context *ctdb,
 734                                      bool auto_mark,
 735                                      void (*callback)(void *, bool),
 736                                      void *private_data);
 737
 738 /* from ctdb_logging.c */
 739
 740 extern const char *debug_extra;
 741
 742 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
 743                                    const char *logging,
 744                                    const char *app_name);
 745
 746 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
 747
 748 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
 749
 750 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
 751                                                struct ctdb_context *ctdb,
 752                                                const char *log_prefix,
 753                                                const char *helper,
 754                                                int helper_argc,
 755                                                const char **helper_argv,
 756                                                void (*logfn)(const char *,
 757                                                              uint16_t, void *),
 758                                                void *logfn_private, pid_t *pid);
 759
 760 int ctdb_set_child_logging(struct ctdb_context *ctdb);
 761 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
 762
 763 /* from ctdb_logging_file.c */
 764
 765 void ctdb_log_init_file(void);
 766
 767 /* from ctdb_logging_syslog.c */
 768
 769 void ctdb_log_init_syslog(void);
 770
 771 /* from ctdb_ltdb_server.c */
 772
 773 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
 774                            TDB_DATA key, struct ctdb_req_header *hdr,
 775                            void (*recv_pkt)(void *, struct ctdb_req_header *),
 776                            void *recv_context, bool ignore_generation);
 777
 778 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
 779                                  TDB_DATA key, struct ctdb_ltdb_header *header,
 780                                  struct ctdb_req_header *hdr, TDB_DATA *data,
 781                                  void (*recv_pkt)(void *, struct ctdb_req_header *),
 782                                  void *recv_context, bool ignore_generation);
 783
 784 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
 785                                 struct ctdb_db_context *ctdb_db);
 786 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
 787                                   struct ctdb_db_context *ctdb_db,
 788                                   const char *reason,/* NULL means healthy */
 789                                   int num_healthy_nodes);
 790 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
 791
 792 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
 793                                     TDB_DATA indata);
 794 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
 795                                    TDB_DATA indata, TDB_DATA *outdata);
 796
 797 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
 798                          struct ctdb_db_context *ctdb_db);
 799
 800 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
 801
 802 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
 803                                TDB_DATA *outdata, uint64_t tdb_flags,
 804                                bool persistent, uint32_t client_id,
 805                                struct ctdb_req_control_old *c,
 806                                bool *async_reply);
 807 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
 808                                uint32_t client_id);
 809
 810 int ctdb_attach_databases(struct ctdb_context *ctdb);
 811
 812 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
 813                                 uint32_t srcnode);
 814 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
 815
 816 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
 817                                      uint32_t client_id);
 818
 819 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
 820                        struct ctdb_db_context *ctdb_db);
 821
 822 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
 823
 824 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
 825                                        uint32_t db_id, TDB_DATA *outdata);
 826
 827 /* from ctdb_monitor.c */
 828
 829 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
 830 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
 831
 832 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
 833 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
 834 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
 835
 836 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
 837
 838 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
 839
 840 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
 841 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
 842
 843 /* from ctdb_persistent.c */
 844
 845 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
 846
 847 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
 848                                    struct ctdb_req_control_old *c,
 849                                    TDB_DATA recdata, bool *async_reply);
 850
 851 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
 852                                              struct ctdb_req_control_old *c,
 853                                              TDB_DATA recdata);
 854 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
 855                                               struct ctdb_req_control_old *c,
 856                                               TDB_DATA recdata);
 857
 858 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
 859                                    TDB_DATA indata, TDB_DATA *outdata);
 860
 861 /* from ctdb_recover.c */
 862
 863 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 864                            TDB_DATA indata, TDB_DATA *outdata);
 865 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
 866                            TDB_DATA indata, TDB_DATA *outdata);
 867
 868 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
 869                           TDB_DATA indata, TDB_DATA *outdata);
 870 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
 871                             TDB_DATA indata, TDB_DATA *outdata);
 872
 873 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
 874
 875 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
 876                              TDB_DATA *outdata);
 877 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
 878
 879 int32_t ctdb_control_db_pull(struct ctdb_context *ctdb,
 880                              struct ctdb_req_control_old *c,
 881                              TDB_DATA indata, TDB_DATA *outdata);
 882 int32_t ctdb_control_db_push_start(struct ctdb_context *ctdb,
 883                                    TDB_DATA indata);
 884 int32_t ctdb_control_db_push_confirm(struct ctdb_context *ctdb,
 885                                      TDB_DATA indata, TDB_DATA *outdata);
 886
 887 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
 888
 889 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
 890                                  struct ctdb_req_control_old *c,
 891                                  TDB_DATA indata, bool *async_reply,
 892                                  const char **errormsg);
 893
 894 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
 895 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
 896 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
 897
 898 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
 899                                  struct ctdb_req_control_old *c,
 900                                  bool *async_reply);
 901 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
 902                                  struct ctdb_req_control_old *c,
 903                                  bool *async_reply);
 904
 905 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
 906                                         TDB_DATA indata, TDB_DATA *outdata);
 907 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
 908                                      TDB_DATA indata, TDB_DATA *outdata);
 909
 910 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
 911                                       TDB_DATA *outdata);
 912
 913 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
 914 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
 915                                    uint32_t opcode, TDB_DATA indata);
 916
 917 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
 918 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
 919
 920 /* from ctdb_recoverd.c */
 921
 922 int ctdb_start_recoverd(struct ctdb_context *ctdb);
 923 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
 924
 925 /* from ctdb_server.c */
 926
 927 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
 928
 929 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
 930
 931 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
 932
 933 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
 934
 935 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
 936
 937 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
 938
 939 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
 940
 941 void ctdb_node_dead(struct ctdb_node *node);
 942 void ctdb_node_connected(struct ctdb_node *node);
 943
 944 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
 945 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
 946                               struct ctdb_req_header *hdr, unsigned opcode);
 947
 948 /* from ctdb_serverids.c */
 949
 950 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
 951                                         uint32_t client_id, TDB_DATA indata);
 952 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
 953                                      TDB_DATA indata);
 954 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
 955                                           TDB_DATA indata);
 956 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
 957                                         TDB_DATA *outdata);
 958
 959 /* from ctdb_statistics.c */
 960
 961 int ctdb_statistics_init(struct ctdb_context *ctdb);
 962
 963 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
 964                                       struct ctdb_req_control_old *c,
 965                                       TDB_DATA *outdata);
 966
 967 /* from ctdb_takeover.c */
 968
 969 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
 970                                  struct ctdb_req_control_old *c,
 971                                  TDB_DATA indata,
 972                                  bool *async_reply);
 973 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
 974                                  struct ctdb_req_control_old *c,
 975                                  TDB_DATA indata,
 976                                  bool *async_reply);
 977 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
 978                                  struct ctdb_req_control_old *c,
 979                                  bool *async_reply);
 980
 981 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
 982 int ctdb_set_single_public_ip(struct ctdb_context *ctdb, const char *iface,
 983                               const char *ip);
 984
 985 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map_old *nodemap,
 986                       uint32_t *force_rebalance_nodes,
 987                       client_async_callback fail_callback, void *callback_data);
 988
 989 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
 990                                 TDB_DATA indata);
 991 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
 992                              bool tcp_update_needed);
 993 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
 994 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
 995
 996 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
 997
 998 void ctdb_release_all_ips(struct ctdb_context *ctdb);
 999
1000 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
1001                                     struct ctdb_req_control_old *c,
1002                                     TDB_DATA *outdata);
1003 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1004                                         struct ctdb_req_control_old *c,
1005                                         TDB_DATA indata, TDB_DATA *outdata);
1006
1007 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1008                                 struct ctdb_req_control_old *c,
1009                                 TDB_DATA *outdata);
1010 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1011                                     struct ctdb_req_control_old *c,
1012                                     TDB_DATA indata);
1013
1014 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1015 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
1016                                          TDB_DATA indata);
1017 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
1018                                          TDB_DATA indata, TDB_DATA *outdata);
1019
1020 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1021
1022 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
1023                                        TDB_DATA indata);
1024
1025 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
1026                                         TDB_DATA indata);
1027 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1028                                         struct ctdb_req_control_old *c,
1029                                         TDB_DATA recdata, bool *async_reply);
1030
1031 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1032                                 struct ctdb_public_ip *ip);
1033 void clear_ip_assignment_tree(struct ctdb_context *ctdb);
1034
1035 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
1036                                        struct ctdb_req_control_old *c,
1037                                        bool *async_reply);
1038
1039 /* from ctdb_traverse.c */
1040
1041 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
1042                                       TDB_DATA data, TDB_DATA *outdata);
1043 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
1044                                   TDB_DATA data, TDB_DATA *outdata);
1045 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
1046                                    TDB_DATA data, TDB_DATA *outdata);
1047 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1048                                     TDB_DATA *outdata, uint32_t srcnode);
1049
1050 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1051                                         TDB_DATA indata, TDB_DATA *outdata,
1052                                         uint32_t srcnode, uint32_t client_id);
1053 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
1054                                     TDB_DATA indata, TDB_DATA *outdata,
1055                                     uint32_t srcnode, uint32_t client_id);
1056
1057 /* from ctdb_tunables.c */
1058
1059 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1060
1061 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1062                                  TDB_DATA *outdata);
1063 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1064 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
1065                                    TDB_DATA *outdata);
1066
1067 /* from ctdb_update_record.c */
1068
1069 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1070                                    struct ctdb_req_control_old *c,
1071                                    TDB_DATA recdata, bool *async_reply);
1072
1073 /* from ctdb_uptime.c */
1074
1075 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
1076
1077 /* from ctdb_vacuum.c */
1078
1079 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1080 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1081
1082 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1083                                            TDB_DATA indata);
1084 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1085                                          const struct ctdb_ltdb_header *hdr,
1086                                          TDB_DATA key);
1087
1088 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1089                                          const struct ctdb_ltdb_header *hdr,
1090                                          const TDB_DATA key);
1091
1092 /* from eventscript.c */
1093
1094 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1095                                              uint32_t call_type,
1096                                              TDB_DATA *outdata);
1097
1098 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1099                                TALLOC_CTX *mem_ctx,
1100                                void (*callback)(struct ctdb_context *,
1101                                                 int, void *),
1102                                void *private_data,
1103                                enum ctdb_event call,
1104                                const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1105
1106 int ctdb_event_script_args(struct ctdb_context *ctdb,
1107                            enum ctdb_event call,
1108                            const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1109
1110 int ctdb_event_script(struct ctdb_context *ctdb,
1111                       enum ctdb_event call);
1112
1113 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1114                               struct ctdb_req_control_old *c,
1115                               TDB_DATA data, bool *async_reply);
1116
1117 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1118 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1119
1120 #endif