4 Copyright (C) Andrew Tridgell 2006
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.
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.
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/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 array of tcp connections
29 struct ctdb_tcp_array {
31 struct ctdb_connection *connections;
35 an installed ctdb remote call
37 struct ctdb_registered_call {
38 struct ctdb_registered_call *next, *prev;
44 check that a pnn is valid
46 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
49 /* called from the queue code when a packet comes in. Called with data==NULL
51 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
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,
60 structure describing a connected client in the daemon
63 struct ctdb_context *ctdb;
65 struct ctdb_queue *queue;
68 struct ctdb_tcp_list *tcp_list;
70 uint32_t num_persistent_updates;
71 struct ctdb_client_notify_list *notify;
75 state associated with one node
78 struct ctdb_context *ctdb;
79 ctdb_sock_addr address;
80 const char *name; /* for debug messages */
81 void *private_data; /* private to transport */
85 /* used by the dead node monitoring */
90 /* a list of controls pending to this node, so we can time them out quickly
91 if the node becomes disconnected */
92 struct daemon_control_state *pending_controls;
94 /* used by the recovery dameon to track when a node should be banned */
95 struct ctdb_banning_state *ban_state;
99 transport specific methods
101 struct ctdb_methods {
102 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
103 int (*start)(struct ctdb_context *); /* start the transport */
104 int (*add_node)(struct ctdb_node *); /* setup a new node */
105 int (*connect_node)(struct ctdb_node *); /* connect to node */
106 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
107 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
108 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
109 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
113 transport calls up to the ctdb layer
115 struct ctdb_upcalls {
116 /* recv_pkt is called when a packet comes in */
117 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
119 /* node_dead is called when an attempt to send to a node fails */
120 void (*node_dead)(struct ctdb_node *);
122 /* node_connected is called when a connection to a node is established */
123 void (*node_connected)(struct ctdb_node *);
126 /* additional data required for the daemon mode */
127 struct ctdb_daemon_data {
130 struct ctdb_queue *queue;
134 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
136 if (value > ctdb->statistics.counter) { \
137 ctdb->statistics.counter = value; \
139 if (value > ctdb->statistics_current.counter) { \
140 ctdb->statistics_current.counter = value; \
144 #define CTDB_INCREMENT_STAT(ctdb, counter) \
146 ctdb->statistics.counter++; \
147 ctdb->statistics_current.counter++; \
150 #define CTDB_DECREMENT_STAT(ctdb, counter) \
152 if (ctdb->statistics.counter > 0) \
153 ctdb->statistics.counter--; \
154 if (ctdb->statistics_current.counter > 0) \
155 ctdb->statistics_current.counter--; \
158 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
160 ctdb_db->statistics.counter++; \
163 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
165 if (ctdb_db->statistics.counter > 0) \
166 ctdb_db->statistics.counter--; \
169 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
171 if (value > ctdb->statistics.counter.max) \
172 ctdb->statistics.counter.max = value; \
173 if (value > ctdb->statistics_current.counter.max) \
174 ctdb->statistics_current.counter.max = value; \
176 if (ctdb->statistics.counter.num == 0 || \
177 value < ctdb->statistics.counter.min) \
178 ctdb->statistics.counter.min = value; \
179 if (ctdb->statistics_current.counter.num == 0 || \
180 value < ctdb->statistics_current.counter.min) \
181 ctdb->statistics_current.counter.min = value; \
183 ctdb->statistics.counter.total += value; \
184 ctdb->statistics_current.counter.total += value; \
186 ctdb->statistics.counter.num++; \
187 ctdb->statistics_current.counter.num++; \
189 if (ctdb->tunable.reclock_latency_ms != 0) { \
190 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
192 ("High RECLOCK latency %fs for operation %s\n", \
198 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
200 if (value > ctdb_db->statistics.counter.max) \
201 ctdb_db->statistics.counter.max = value; \
202 if (ctdb_db->statistics.counter.num == 0 || \
203 value < ctdb_db->statistics.counter.min) \
204 ctdb_db->statistics.counter.min = value; \
206 ctdb_db->statistics.counter.total += value; \
207 ctdb_db->statistics.counter.num++; \
209 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
210 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
212 ("High latency %.6fs for operation %s on database %s\n",\
213 value, operation, ctdb_db->db_name)); \
218 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
220 double l = timeval_elapsed(&t); \
222 if (l > ctdb->statistics.counter.max) \
223 ctdb->statistics.counter.max = l; \
224 if (l > ctdb->statistics_current.counter.max) \
225 ctdb->statistics_current.counter.max = l; \
227 if (ctdb->statistics.counter.num == 0 || \
228 l < ctdb->statistics.counter.min) \
229 ctdb->statistics.counter.min = l; \
230 if (ctdb->statistics_current.counter.num == 0 || \
231 l < ctdb->statistics_current.counter.min) \
232 ctdb->statistics_current.counter.min = l; \
234 ctdb->statistics.counter.total += l; \
235 ctdb->statistics_current.counter.total += l; \
237 ctdb->statistics.counter.num++; \
238 ctdb->statistics_current.counter.num++; \
240 if (ctdb->tunable.log_latency_ms != 0) { \
241 if (l*1000 > ctdb->tunable.log_latency_ms) { \
242 DEBUG(DEBUG_WARNING, \
243 ("High latency %.6fs for operation %s on database %s\n",\
244 l, operation, db->db_name)); \
250 struct ctdb_cluster_mutex_handle;
252 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
254 /* main state of the ctdb daemon */
255 struct ctdb_context {
256 struct tevent_context *ev;
257 struct timeval ctdbd_start_time;
258 struct timeval last_recovery_started;
259 struct timeval last_recovery_finished;
260 uint32_t recovery_mode;
261 TALLOC_CTX *tickle_update_context;
262 TALLOC_CTX *keepalive_ctx;
263 TALLOC_CTX *check_public_ifaces_ctx;
264 struct ctdb_tunable_list tunable;
265 enum ctdb_freeze_mode freeze_mode;
266 struct ctdb_freeze_handle *freeze_handle;
267 bool freeze_transaction_started;
268 uint32_t freeze_transaction_id;
269 ctdb_sock_addr *address;
271 const char *db_directory;
272 const char *db_directory_persistent;
273 const char *db_directory_state;
274 struct tdb_wrap *db_persistent_health;
275 uint32_t db_persistent_startup_generation;
276 uint64_t db_persistent_check_errors;
277 uint64_t max_persistent_check_errors;
278 const char *transport;
279 const char *recovery_lock;
280 uint32_t pnn; /* our own pnn */
282 uint32_t num_connected;
284 uint32_t capabilities;
285 struct reqid_context *idr;
286 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
287 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
288 struct ctdb_interface *ifaces; /* list of local interfaces */
290 const struct ctdb_methods *methods; /* transport methods */
291 const struct ctdb_upcalls *upcalls; /* transport upcalls */
292 void *private_data; /* private to transport */
293 struct ctdb_db_context *db_list;
294 struct srvid_context *srv;
295 struct ctdb_daemon_data daemon;
296 struct ctdb_statistics statistics;
297 struct ctdb_statistics statistics_current;
298 #define MAX_STAT_HISTORY 100
299 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
300 struct ctdb_vnn_map *vnn_map;
301 uint32_t num_clients;
302 uint32_t recovery_master;
303 struct ctdb_client_ip *client_ip_list;
304 bool do_checkpublicip;
306 const char *event_script_dir;
307 const char *notification_script;
308 const char *default_public_interface;
311 enum ctdb_runstate runstate;
312 struct ctdb_monitor_state *monitor;
313 int start_as_disabled;
314 int start_as_stopped;
316 uint32_t *recd_ping_count;
317 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
318 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
320 TALLOC_CTX *event_script_ctx;
323 struct ctdb_event_script_state *current_monitor;
324 struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
326 TALLOC_CTX *banning_ctx;
328 struct ctdb_vacuum_child_context *vacuumers;
330 /* mapping from pid to ctdb_client * */
331 struct ctdb_client_pid_list *client_pids;
333 /* Used to defer db attach requests while in recovery mode */
334 struct ctdb_deferred_attach_context *deferred_attach;
336 /* if we are a child process, do we have a domain socket to send controls on */
337 bool can_send_controls;
339 /* list of event script callback functions that are active */
340 struct event_script_callback *script_callbacks;
342 struct ctdb_reloadips_handle *reload_ips;
344 const char *nodes_file;
345 const char *public_addresses_file;
346 struct trbt_tree *child_processes;
348 /* Used for locking record/db/alldb */
349 struct lock_context *lock_current;
350 struct lock_context *lock_pending;
353 struct ctdb_db_context {
354 struct ctdb_db_context *next, *prev;
355 struct ctdb_context *ctdb;
358 bool readonly; /* Do we support read-only delegations ? */
359 bool sticky; /* Do we support sticky records ? */
362 struct tdb_wrap *ltdb;
363 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
364 struct ctdb_registered_call *calls; /* list of registered calls */
366 struct tevent_timer *seqnum_update;
367 struct ctdb_traverse_local_handle *traverse;
368 struct ctdb_vacuum_handle *vacuum_handle;
369 char *unhealthy_reason;
370 int pending_requests;
371 struct revokechild_handle *revokechild_active;
372 struct ctdb_persistent_state *persistent_state;
373 struct trbt_tree *delete_queue;
374 struct trbt_tree *sticky_records;
375 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
377 struct ctdb_ltdb_header *header,
380 /* used to track which records we are currently fetching
381 so we can avoid sending duplicate fetch requests
383 struct trbt_tree *deferred_fetch;
384 struct trbt_tree *defer_dmaster;
386 struct ctdb_db_statistics_old statistics;
388 struct lock_context *lock_current;
389 struct lock_context *lock_pending;
390 int lock_num_current;
392 struct ctdb_call_state *pending_calls;
394 enum ctdb_freeze_mode freeze_mode;
395 struct ctdb_db_freeze_handle *freeze_handle;
396 bool freeze_transaction_started;
397 uint32_t freeze_transaction_id;
405 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
406 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
407 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
408 return -1; }} while (0)
410 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
411 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
412 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
415 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
416 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
417 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
418 return NULL; }} while (0)
420 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
421 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
422 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
426 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
429 state of a in-progress ctdb call
431 struct ctdb_call_state {
432 struct ctdb_call_state *next, *prev;
433 enum call_state state;
435 struct ctdb_req_call_old *c;
436 struct ctdb_db_context *ctdb_db;
438 struct ctdb_call *call;
441 void (*fn)(struct ctdb_call_state *);
446 /* internal prototypes */
448 #define CHECK_CONTROL_DATA_SIZE(size) do { \
449 if (indata.dsize != size) { \
450 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
451 opcode, (unsigned)indata.dsize, (unsigned)size)); \
456 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
457 if (indata.dsize < size) { \
458 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
459 opcode, (unsigned)indata.dsize, (unsigned)size)); \
465 state of a in-progress ctdb call in client
467 struct ctdb_client_call_state {
468 enum call_state state;
470 struct ctdb_db_context *ctdb_db;
471 struct ctdb_call *call;
473 void (*fn)(struct ctdb_client_call_state *);
478 extern int script_log_level;
479 extern bool fast_start;
480 extern const char *ctdbd_pidfile;
482 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
485 /* from tcp/ and ib/ */
487 int ctdb_tcp_init(struct ctdb_context *ctdb);
488 int ctdb_ibw_init(struct ctdb_context *ctdb);
490 /* from ctdb_banning.c */
492 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
493 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
494 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
495 void ctdb_ban_self(struct ctdb_context *ctdb);
497 /* from ctdb_call.c */
499 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
501 void ctdb_request_dmaster(struct ctdb_context *ctdb,
502 struct ctdb_req_header *hdr);
503 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
504 struct ctdb_req_header *hdr);
505 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
506 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
507 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
509 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
510 void ctdb_call_resend_all(struct ctdb_context *ctdb);
512 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
513 struct ctdb_call *call,
514 struct ctdb_ltdb_header *header,
517 struct ctdb_call_state *ctdb_daemon_call_send_remote(
518 struct ctdb_db_context *ctdb_db,
519 struct ctdb_call *call,
520 struct ctdb_ltdb_header *header);
521 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
522 struct ctdb_call *call);
524 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
526 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
527 struct ctdb_db_context *ctdb_db,
528 TDB_DATA key, struct ctdb_ltdb_header *header,
531 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
532 struct ctdb_db_context *ctdb_db,
533 TDB_DATA key, struct ctdb_req_header *hdr,
534 deferred_requeue_fn fn, void *call_context);
536 /* from server/ctdb_control.c */
538 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
540 void ctdb_request_control_reply(struct ctdb_context *ctdb,
541 struct ctdb_req_control_old *c,
542 TDB_DATA *outdata, int32_t status,
543 const char *errormsg);
545 void ctdb_request_control(struct ctdb_context *ctdb,
546 struct ctdb_req_header *hdr);
547 void ctdb_reply_control(struct ctdb_context *ctdb,
548 struct ctdb_req_header *hdr);
550 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
551 uint64_t srvid, uint32_t opcode,
552 uint32_t client_id, uint32_t flags,
554 ctdb_control_callback_fn_t callback,
557 /* from server/ctdb_daemon.c */
559 int daemon_register_message_handler(struct ctdb_context *ctdb,
560 uint32_t client_id, uint64_t srvid);
561 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
562 uint32_t client_id, uint64_t srvid);
563 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
566 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
568 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
570 enum ctdb_operation operation,
571 size_t length, size_t slength,
574 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
575 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
578 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
579 struct ctdb_node *node);
581 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
582 ctdb_fn_t fn, int id);
584 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
585 uint64_t srvid, TDB_DATA data);
587 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
588 uint32_t client_id, TDB_DATA indata);
589 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
590 uint32_t client_id, TDB_DATA indata);
592 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
595 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
597 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
598 TDB_DATA indata, TDB_DATA *outdata);
600 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
602 int switch_from_server_to_client(struct ctdb_context *ctdb,
603 const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
605 /* From server/ctdb_fork.c */
607 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt,
608 ...) PRINTF_ATTRIBUTE(2,3);
610 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
612 pid_t ctdb_fork(struct ctdb_context *ctdb);
614 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
616 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
618 /* from server/ctdb_freeze.c */
620 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
621 struct ctdb_req_control_old *c,
622 uint32_t db_id, bool *async_reply);
623 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
625 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
626 struct ctdb_req_control_old *c, bool *async_reply);
627 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, bool check_recmode);
629 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
631 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
633 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
635 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
638 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
640 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
641 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
643 /* from server/ctdb_keepalive.c */
645 void ctdb_start_keepalive(struct ctdb_context *ctdb);
646 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
648 /* from server/ctdb_lock.c */
652 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
655 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
658 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
660 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
662 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
663 struct ctdb_db_context *ctdb_db,
666 void (*callback)(void *, bool),
669 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
670 struct ctdb_db_context *ctdb_db,
672 void (*callback)(void *, bool),
675 /* from ctdb_logging.c */
677 extern const char *debug_extra;
679 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
681 const char *app_name);
683 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
685 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
687 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
688 struct ctdb_context *ctdb,
689 const char *log_prefix,
692 const char **helper_argv,
693 void (*logfn)(const char *,
695 void *logfn_private, pid_t *pid);
697 int ctdb_set_child_logging(struct ctdb_context *ctdb);
698 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
700 /* from ctdb_logging_file.c */
702 void ctdb_log_init_file(void);
704 /* from ctdb_logging_syslog.c */
706 void ctdb_log_init_syslog(void);
708 /* from ctdb_ltdb_server.c */
710 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
711 TDB_DATA key, struct ctdb_req_header *hdr,
712 void (*recv_pkt)(void *, struct ctdb_req_header *),
713 void *recv_context, bool ignore_generation);
715 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
716 TDB_DATA key, struct ctdb_ltdb_header *header,
717 struct ctdb_req_header *hdr, TDB_DATA *data,
718 void (*recv_pkt)(void *, struct ctdb_req_header *),
719 void *recv_context, bool ignore_generation);
721 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
722 struct ctdb_db_context *ctdb_db);
723 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
724 struct ctdb_db_context *ctdb_db,
725 const char *reason,/* NULL means healthy */
726 int num_healthy_nodes);
727 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
729 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
731 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
732 TDB_DATA indata, TDB_DATA *outdata);
734 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
735 struct ctdb_db_context *ctdb_db);
737 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
739 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
740 TDB_DATA *outdata, uint64_t tdb_flags,
741 bool persistent, uint32_t client_id,
742 struct ctdb_req_control_old *c,
744 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
747 int ctdb_attach_databases(struct ctdb_context *ctdb);
749 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
751 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
753 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
754 struct ctdb_db_context *ctdb_db);
756 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
758 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
759 uint32_t db_id, TDB_DATA *outdata);
761 /* from ctdb_monitor.c */
763 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
764 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
766 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
767 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
768 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
770 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
772 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
774 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
775 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
777 /* from ctdb_persistent.c */
779 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
781 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
782 struct ctdb_req_control_old *c,
783 TDB_DATA recdata, bool *async_reply);
785 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
786 struct ctdb_req_control_old *c,
788 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
789 struct ctdb_req_control_old *c,
792 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
793 TDB_DATA indata, TDB_DATA *outdata);
795 /* from ctdb_recover.c */
797 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
798 TDB_DATA indata, TDB_DATA *outdata);
799 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
800 TDB_DATA indata, TDB_DATA *outdata);
802 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
803 TDB_DATA indata, TDB_DATA *outdata);
804 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
805 TDB_DATA indata, TDB_DATA *outdata);
807 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
809 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
811 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
813 int32_t ctdb_control_db_pull(struct ctdb_context *ctdb,
814 struct ctdb_req_control_old *c,
815 TDB_DATA indata, TDB_DATA *outdata);
816 int32_t ctdb_control_db_push_start(struct ctdb_context *ctdb,
818 int32_t ctdb_control_db_push_confirm(struct ctdb_context *ctdb,
819 TDB_DATA indata, TDB_DATA *outdata);
821 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
823 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
824 struct ctdb_req_control_old *c,
825 TDB_DATA indata, bool *async_reply,
826 const char **errormsg);
828 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
829 struct ctdb_req_control_old *c,
831 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
832 struct ctdb_req_control_old *c,
835 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
836 TDB_DATA indata, TDB_DATA *outdata);
837 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
838 TDB_DATA indata, TDB_DATA *outdata);
840 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
843 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
844 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
845 uint32_t opcode, TDB_DATA indata);
847 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
848 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
850 /* from ctdb_recoverd.c */
852 int ctdb_start_recoverd(struct ctdb_context *ctdb);
853 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
855 /* from ctdb_server.c */
857 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
859 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
861 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
863 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
865 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
867 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
869 void ctdb_node_dead(struct ctdb_node *node);
870 void ctdb_node_connected(struct ctdb_node *node);
872 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
873 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
874 struct ctdb_req_header *hdr, unsigned opcode);
876 /* from ctdb_serverids.c */
878 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
879 uint32_t client_id, TDB_DATA indata);
880 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
882 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
884 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
887 /* from ctdb_statistics.c */
889 int ctdb_statistics_init(struct ctdb_context *ctdb);
891 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
892 struct ctdb_req_control_old *c,
895 /* from ctdb_takeover.c */
897 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
898 struct ctdb_req_control_old *c,
901 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
902 struct ctdb_req_control_old *c,
905 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
906 struct ctdb_req_control_old *c,
909 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
911 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map_old *nodemap,
912 uint32_t *force_rebalance_nodes);
914 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
916 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
917 bool tcp_update_needed);
918 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
919 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
921 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
923 void ctdb_release_all_ips(struct ctdb_context *ctdb);
925 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
926 struct ctdb_req_control_old *c,
928 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
929 struct ctdb_req_control_old *c,
930 TDB_DATA indata, TDB_DATA *outdata);
932 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
933 struct ctdb_req_control_old *c,
935 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
936 struct ctdb_req_control_old *c,
939 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
941 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
942 TDB_DATA indata, TDB_DATA *outdata);
944 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
946 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
949 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
951 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
954 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
955 struct ctdb_req_control_old *c,
958 /* from ctdb_traverse.c */
960 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
961 TDB_DATA data, TDB_DATA *outdata);
962 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
963 TDB_DATA data, TDB_DATA *outdata);
964 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
965 TDB_DATA data, TDB_DATA *outdata);
966 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
967 TDB_DATA *outdata, uint32_t srcnode);
969 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
970 TDB_DATA indata, TDB_DATA *outdata,
971 uint32_t srcnode, uint32_t client_id);
972 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
973 TDB_DATA indata, TDB_DATA *outdata,
974 uint32_t srcnode, uint32_t client_id);
976 /* from ctdb_tunables.c */
978 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
980 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
982 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
983 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
986 /* from ctdb_update_record.c */
988 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
989 struct ctdb_req_control_old *c,
990 TDB_DATA recdata, bool *async_reply);
992 /* from ctdb_uptime.c */
994 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
996 /* from ctdb_vacuum.c */
998 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
999 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1001 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1003 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1004 const struct ctdb_ltdb_header *hdr,
1007 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1008 const struct ctdb_ltdb_header *hdr,
1009 const TDB_DATA key);
1011 /* from eventscript.c */
1013 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1017 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1018 TALLOC_CTX *mem_ctx,
1019 void (*callback)(struct ctdb_context *,
1022 enum ctdb_event call,
1023 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1025 int ctdb_event_script_args(struct ctdb_context *ctdb,
1026 enum ctdb_event call,
1027 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1029 int ctdb_event_script(struct ctdb_context *ctdb,
1030 enum ctdb_event call);
1032 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1033 struct ctdb_req_control_old *c,
1034 TDB_DATA data, bool *async_reply);
1036 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1037 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);