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_tcp_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;
74 /* state associated with a public ip address */
76 struct ctdb_vnn *prev, *next;
78 struct ctdb_iface *iface;
80 ctdb_sock_addr public_address;
81 uint8_t public_netmask_bits;
83 /* the node number that is serving this public address, if any.
84 If no node serves this ip it is set to -1 */
87 /* List of clients to tickle for this public address */
88 struct ctdb_tcp_array *tcp_array;
90 /* whether we need to update the other nodes with changes to our list
91 of connected clients */
92 bool tcp_update_needed;
94 /* a context to hang sending gratious arp events off */
95 TALLOC_CTX *takeover_ctx;
97 struct ctdb_kill_tcp *killtcp;
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;
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. */
110 state associated with one 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 */
120 /* used by the dead node monitoring */
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;
129 /* used by the recovery daemon when distributing ip addresses
130 across the nodes. it needs to know which public ip's can be handled
133 struct ctdb_public_ip_list_old *known_public_ips;
134 struct ctdb_public_ip_list_old *available_public_ips;
135 /* used by the recovery dameon to track when a node should be banned */
136 struct ctdb_banning_state *ban_state;
140 transport specific methods
142 struct ctdb_methods {
143 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
144 int (*start)(struct ctdb_context *); /* start the transport */
145 int (*add_node)(struct ctdb_node *); /* setup a new node */
146 int (*connect_node)(struct ctdb_node *); /* connect to node */
147 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
148 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
149 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
150 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
154 transport calls up to the ctdb layer
156 struct ctdb_upcalls {
157 /* recv_pkt is called when a packet comes in */
158 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
160 /* node_dead is called when an attempt to send to a node fails */
161 void (*node_dead)(struct ctdb_node *);
163 /* node_connected is called when a connection to a node is established */
164 void (*node_connected)(struct ctdb_node *);
167 /* additional data required for the daemon mode */
168 struct ctdb_daemon_data {
171 struct ctdb_queue *queue;
175 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
177 if (value > ctdb->statistics.counter) { \
178 ctdb->statistics.counter = c->hopcount; \
180 if (value > ctdb->statistics_current.counter) { \
181 ctdb->statistics_current.counter = c->hopcount; \
185 #define CTDB_INCREMENT_STAT(ctdb, counter) \
187 ctdb->statistics.counter++; \
188 ctdb->statistics_current.counter++; \
191 #define CTDB_DECREMENT_STAT(ctdb, counter) \
193 if (ctdb->statistics.counter > 0) \
194 ctdb->statistics.counter--; \
195 if (ctdb->statistics_current.counter > 0) \
196 ctdb->statistics_current.counter--; \
199 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
201 ctdb_db->statistics.counter++; \
204 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
206 if (ctdb_db->statistics.counter > 0) \
207 ctdb_db->statistics.counter--; \
210 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
212 if (value > ctdb->statistics.counter.max) \
213 ctdb->statistics.counter.max = value; \
214 if (value > ctdb->statistics_current.counter.max) \
215 ctdb->statistics_current.counter.max = value; \
217 if (ctdb->statistics.counter.num == 0 || \
218 value < ctdb->statistics.counter.min) \
219 ctdb->statistics.counter.min = value; \
220 if (ctdb->statistics_current.counter.num == 0 || \
221 value < ctdb->statistics_current.counter.min) \
222 ctdb->statistics_current.counter.min = value; \
224 ctdb->statistics.counter.total += value; \
225 ctdb->statistics_current.counter.total += value; \
227 ctdb->statistics.counter.num++; \
228 ctdb->statistics_current.counter.num++; \
230 if (ctdb->tunable.reclock_latency_ms != 0) { \
231 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
233 ("High RECLOCK latency %fs for operation %s\n", \
239 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
241 if (value > ctdb_db->statistics.counter.max) \
242 ctdb_db->statistics.counter.max = value; \
243 if (ctdb_db->statistics.counter.num == 0 || \
244 value < ctdb_db->statistics.counter.min) \
245 ctdb_db->statistics.counter.min = value; \
247 ctdb_db->statistics.counter.total += value; \
248 ctdb_db->statistics.counter.num++; \
250 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
251 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
253 ("High latency %.6fs for operation %s on database %s\n",\
254 value, operation, ctdb_db->db_name)); \
259 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
261 double l = timeval_elapsed(&t); \
263 if (l > ctdb->statistics.counter.max) \
264 ctdb->statistics.counter.max = l; \
265 if (l > ctdb->statistics_current.counter.max) \
266 ctdb->statistics_current.counter.max = l; \
268 if (ctdb->statistics.counter.num == 0 || \
269 l < ctdb->statistics.counter.min) \
270 ctdb->statistics.counter.min = l; \
271 if (ctdb->statistics_current.counter.num == 0 || \
272 l < ctdb->statistics_current.counter.min) \
273 ctdb->statistics_current.counter.min = l; \
275 ctdb->statistics.counter.total += l; \
276 ctdb->statistics_current.counter.total += l; \
278 ctdb->statistics.counter.num++; \
279 ctdb->statistics_current.counter.num++; \
281 if (ctdb->tunable.log_latency_ms != 0) { \
282 if (l*1000 > ctdb->tunable.log_latency_ms) { \
283 DEBUG(DEBUG_WARNING, \
284 ("High latency %.6fs for operation %s on database %s\n",\
285 l, operation, db->db_name)); \
291 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
293 #define NUM_DB_PRIORITIES 3
294 /* main state of the ctdb daemon */
295 struct ctdb_context {
296 struct tevent_context *ev;
297 struct timeval ctdbd_start_time;
298 struct timeval last_recovery_started;
299 struct timeval last_recovery_finished;
300 uint32_t recovery_mode;
301 TALLOC_CTX *tickle_update_context;
302 TALLOC_CTX *keepalive_ctx;
303 TALLOC_CTX *check_public_ifaces_ctx;
304 struct ctdb_tunable tunable;
305 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
306 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
307 bool freeze_transaction_started;
308 uint32_t freeze_transaction_id;
309 ctdb_sock_addr *address;
311 const char *db_directory;
312 const char *db_directory_persistent;
313 const char *db_directory_state;
314 struct tdb_wrap *db_persistent_health;
315 uint32_t db_persistent_startup_generation;
316 uint64_t db_persistent_check_errors;
317 uint64_t max_persistent_check_errors;
318 const char *transport;
319 char *recovery_lock_file;
320 int recovery_lock_fd;
321 uint32_t pnn; /* our own pnn */
323 uint32_t num_connected;
325 uint32_t capabilities;
326 struct reqid_context *idr;
327 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
328 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
329 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
330 struct ctdb_iface *ifaces; /* list of local interfaces */
332 const struct ctdb_methods *methods; /* transport methods */
333 const struct ctdb_upcalls *upcalls; /* transport upcalls */
334 void *private_data; /* private to transport */
335 struct ctdb_db_context *db_list;
336 struct srvid_context *srv;
337 struct ctdb_daemon_data daemon;
338 struct ctdb_statistics statistics;
339 struct ctdb_statistics statistics_current;
340 #define MAX_STAT_HISTORY 100
341 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
342 struct ctdb_vnn_map *vnn_map;
343 uint32_t num_clients;
344 uint32_t recovery_master;
345 struct ctdb_client_ip *client_ip_list;
346 bool do_checkpublicip;
347 struct trbt_tree *server_ids;
349 const char *event_script_dir;
350 const char *notification_script;
351 const char *default_public_interface;
354 enum ctdb_runstate runstate;
355 struct ctdb_monitor_state *monitor;
356 int start_as_disabled;
357 int start_as_stopped;
359 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
360 uint32_t *recd_ping_count;
361 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
362 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
364 TALLOC_CTX *event_script_ctx;
367 struct ctdb_event_script_state *current_monitor;
368 struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
370 TALLOC_CTX *banning_ctx;
372 struct ctdb_vacuum_child_context *vacuumers;
374 /* mapping from pid to ctdb_client * */
375 struct ctdb_client_pid_list *client_pids;
377 /* used in the recovery daemon to remember the ip allocation */
378 struct trbt_tree *ip_tree;
380 /* Used to defer db attach requests while in recovery mode */
381 struct ctdb_deferred_attach_context *deferred_attach;
383 /* if we are a child process, do we have a domain socket to send controls on */
384 bool can_send_controls;
386 /* list of event script callback functions that are active */
387 struct event_script_callback *script_callbacks;
389 struct ctdb_reloadips_handle *reload_ips;
391 const char *nodes_file;
392 const char *public_addresses_file;
393 struct trbt_tree *child_processes;
395 /* Used for locking record/db/alldb */
396 struct lock_context *lock_current;
397 struct lock_context *lock_pending;
400 struct ctdb_db_context {
401 struct ctdb_db_context *next, *prev;
402 struct ctdb_context *ctdb;
406 bool readonly; /* Do we support read-only delegations ? */
407 bool sticky; /* Do we support sticky records ? */
410 struct tdb_wrap *ltdb;
411 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
412 struct ctdb_registered_call *calls; /* list of registered calls */
414 struct tevent_timer *seqnum_update;
415 struct ctdb_traverse_local_handle *traverse;
416 struct ctdb_vacuum_handle *vacuum_handle;
417 char *unhealthy_reason;
418 int pending_requests;
419 struct revokechild_handle *revokechild_active;
420 struct ctdb_persistent_state *persistent_state;
421 struct trbt_tree *delete_queue;
422 struct trbt_tree *sticky_records;
423 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
425 struct ctdb_ltdb_header *header,
428 /* used to track which records we are currently fetching
429 so we can avoid sending duplicate fetch requests
431 struct trbt_tree *deferred_fetch;
432 struct trbt_tree *defer_dmaster;
434 struct ctdb_db_statistics_old statistics;
436 struct lock_context *lock_current;
437 struct lock_context *lock_pending;
438 int lock_num_current;
440 struct ctdb_call_state *pending_calls;
442 enum ctdb_freeze_mode freeze_mode;
443 struct ctdb_db_freeze_handle *freeze_handle;
444 bool freeze_transaction_started;
445 uint32_t freeze_transaction_id;
450 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
451 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
452 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
453 return -1; }} while (0)
455 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
456 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
457 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
460 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
461 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
462 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
463 return NULL; }} while (0)
465 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
466 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
467 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
471 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
474 state of a in-progress ctdb call
476 struct ctdb_call_state {
477 struct ctdb_call_state *next, *prev;
478 enum call_state state;
480 struct ctdb_req_call_old *c;
481 struct ctdb_db_context *ctdb_db;
483 struct ctdb_call *call;
486 void (*fn)(struct ctdb_call_state *);
491 /* internal prototypes */
493 #define CHECK_CONTROL_DATA_SIZE(size) do { \
494 if (indata.dsize != size) { \
495 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
496 opcode, (unsigned)indata.dsize, (unsigned)size)); \
501 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
502 if (indata.dsize < size) { \
503 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
504 opcode, (unsigned)indata.dsize, (unsigned)size)); \
510 state of a in-progress ctdb call in client
512 struct ctdb_client_call_state {
513 enum call_state state;
515 struct ctdb_db_context *ctdb_db;
516 struct ctdb_call *call;
518 void (*fn)(struct ctdb_client_call_state *);
523 extern int script_log_level;
524 extern bool fast_start;
525 extern const char *ctdbd_pidfile;
527 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
530 /* from tcp/ and ib/ */
532 int ctdb_tcp_init(struct ctdb_context *ctdb);
533 int ctdb_ibw_init(struct ctdb_context *ctdb);
535 /* from ctdb_banning.c */
537 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
538 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
539 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
540 void ctdb_ban_self(struct ctdb_context *ctdb);
542 /* from ctdb_call.c */
544 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
546 void ctdb_request_dmaster(struct ctdb_context *ctdb,
547 struct ctdb_req_header *hdr);
548 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
549 struct ctdb_req_header *hdr);
550 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
551 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
552 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
554 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
555 void ctdb_call_resend_all(struct ctdb_context *ctdb);
557 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
558 struct ctdb_call *call,
559 struct ctdb_ltdb_header *header,
562 struct ctdb_call_state *ctdb_daemon_call_send_remote(
563 struct ctdb_db_context *ctdb_db,
564 struct ctdb_call *call,
565 struct ctdb_ltdb_header *header);
566 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
567 struct ctdb_call *call);
569 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
571 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
572 struct ctdb_db_context *ctdb_db,
573 TDB_DATA key, struct ctdb_ltdb_header *header,
576 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
577 struct ctdb_db_context *ctdb_db,
578 TDB_DATA key, struct ctdb_req_header *hdr,
579 deferred_requeue_fn fn, void *call_context);
581 /* from server/ctdb_control.c */
583 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
585 void ctdb_request_control_reply(struct ctdb_context *ctdb,
586 struct ctdb_req_control_old *c,
587 TDB_DATA *outdata, int32_t status,
588 const char *errormsg);
590 void ctdb_request_control(struct ctdb_context *ctdb,
591 struct ctdb_req_header *hdr);
592 void ctdb_reply_control(struct ctdb_context *ctdb,
593 struct ctdb_req_header *hdr);
595 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
596 uint64_t srvid, uint32_t opcode,
597 uint32_t client_id, uint32_t flags,
599 ctdb_control_callback_fn_t callback,
602 /* from server/ctdb_daemon.c */
604 int daemon_register_message_handler(struct ctdb_context *ctdb,
605 uint32_t client_id, uint64_t srvid);
606 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
607 uint32_t client_id, uint64_t srvid);
608 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
611 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
613 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
615 enum ctdb_operation operation,
616 size_t length, size_t slength,
619 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
620 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
623 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
624 struct ctdb_node *node);
626 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
627 ctdb_fn_t fn, int id);
629 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
630 uint64_t srvid, TDB_DATA data);
632 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
633 uint32_t client_id, TDB_DATA indata);
634 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
635 uint32_t client_id, TDB_DATA indata);
637 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
640 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
642 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
643 TDB_DATA indata, TDB_DATA *outdata);
645 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
647 /* from server/ctdb_freeze.c */
649 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
650 struct ctdb_req_control_old *c,
651 uint32_t db_id, bool *async_reply);
652 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
654 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
655 struct ctdb_req_control_old *c, bool *async_reply);
656 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
659 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
661 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
663 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
665 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
668 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
669 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
670 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
672 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
674 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
675 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
676 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
678 /* from server/ctdb_keepalive.c */
680 void ctdb_start_keepalive(struct ctdb_context *ctdb);
681 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
683 /* from server/ctdb_lock.c */
687 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
690 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
691 ctdb_db_handler_t handler, void *private_data);
692 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
695 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
696 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
698 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
699 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
701 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
702 struct ctdb_db_context *ctdb_db,
705 void (*callback)(void *, bool),
708 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
709 struct ctdb_db_context *ctdb_db,
711 void (*callback)(void *, bool),
714 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
715 struct ctdb_context *ctdb,
718 void (*callback)(void *, bool),
721 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
722 struct ctdb_context *ctdb,
724 void (*callback)(void *, bool),
727 /* from ctdb_logging.c */
729 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
731 const char *app_name);
733 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
735 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
737 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
738 struct ctdb_context *ctdb,
739 const char *log_prefix,
742 const char **helper_argv,
743 void (*logfn)(const char *,
745 void *logfn_private, pid_t *pid);
747 int ctdb_set_child_logging(struct ctdb_context *ctdb);
748 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
750 /* from ctdb_logging_file.c */
752 void ctdb_log_init_file(void);
754 /* from ctdb_logging_syslog.c */
756 void ctdb_log_init_syslog(void);
758 /* from ctdb_ltdb_server.c */
760 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
761 TDB_DATA key, struct ctdb_req_header *hdr,
762 void (*recv_pkt)(void *, struct ctdb_req_header *),
763 void *recv_context, bool ignore_generation);
765 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
766 TDB_DATA key, struct ctdb_ltdb_header *header,
767 struct ctdb_req_header *hdr, TDB_DATA *data,
768 void (*recv_pkt)(void *, struct ctdb_req_header *),
769 void *recv_context, bool ignore_generation);
771 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
772 struct ctdb_db_context *ctdb_db);
773 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
774 struct ctdb_db_context *ctdb_db,
775 const char *reason,/* NULL means healthy */
776 int num_healthy_nodes);
777 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
779 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
781 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
782 TDB_DATA indata, TDB_DATA *outdata);
784 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
785 struct ctdb_db_context *ctdb_db);
787 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
789 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
790 TDB_DATA *outdata, uint64_t tdb_flags,
791 bool persistent, uint32_t client_id,
792 struct ctdb_req_control_old *c,
794 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
797 int ctdb_attach_databases(struct ctdb_context *ctdb);
799 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
801 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
803 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
806 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
807 struct ctdb_db_context *ctdb_db);
809 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
811 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
812 uint32_t db_id, TDB_DATA *outdata);
814 /* from ctdb_monitor.c */
816 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
817 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
819 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
820 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
821 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
823 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
825 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
827 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
828 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
830 /* from ctdb_persistent.c */
832 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
834 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
835 struct ctdb_req_control_old *c,
836 TDB_DATA recdata, bool *async_reply);
838 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
839 struct ctdb_req_control_old *c,
841 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
842 struct ctdb_req_control_old *c,
845 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
846 TDB_DATA indata, TDB_DATA *outdata);
848 /* from ctdb_recover.c */
850 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
851 TDB_DATA indata, TDB_DATA *outdata);
852 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
853 TDB_DATA indata, TDB_DATA *outdata);
855 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
856 TDB_DATA indata, TDB_DATA *outdata);
857 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
858 TDB_DATA indata, TDB_DATA *outdata);
860 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
862 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
864 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
866 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
868 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
869 struct ctdb_req_control_old *c,
870 TDB_DATA indata, bool *async_reply,
871 const char **errormsg);
873 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
874 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
875 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
877 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
878 struct ctdb_req_control_old *c,
880 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
881 struct ctdb_req_control_old *c,
884 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
885 TDB_DATA indata, TDB_DATA *outdata);
886 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
887 TDB_DATA indata, TDB_DATA *outdata);
889 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
892 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
893 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
894 uint32_t opcode, TDB_DATA indata);
896 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
897 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
899 /* from ctdb_recoverd.c */
901 int ctdb_start_recoverd(struct ctdb_context *ctdb);
902 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
904 /* from ctdb_server.c */
906 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
908 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
910 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
912 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
914 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
916 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
918 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
920 void ctdb_node_dead(struct ctdb_node *node);
921 void ctdb_node_connected(struct ctdb_node *node);
923 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
924 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
925 struct ctdb_req_header *hdr, unsigned opcode);
927 /* from ctdb_serverids.c */
929 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
930 uint32_t client_id, TDB_DATA indata);
931 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
933 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
935 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
938 /* from ctdb_statistics.c */
940 int ctdb_statistics_init(struct ctdb_context *ctdb);
942 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
943 struct ctdb_req_control_old *c,
946 /* from ctdb_takeover.c */
948 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
949 struct ctdb_req_control_old *c,
952 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
953 struct ctdb_req_control_old *c,
956 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
957 struct ctdb_req_control_old *c,
960 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
961 int ctdb_set_single_public_ip(struct ctdb_context *ctdb, const char *iface,
964 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map_old *nodemap,
965 uint32_t *force_rebalance_nodes,
966 client_async_callback fail_callback, void *callback_data);
968 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
970 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
971 bool tcp_update_needed);
972 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
973 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
975 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
977 void ctdb_release_all_ips(struct ctdb_context *ctdb);
979 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
980 struct ctdb_req_control_old *c,
982 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
983 struct ctdb_req_control_old *c,
984 TDB_DATA indata, TDB_DATA *outdata);
986 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
987 struct ctdb_req_control_old *c,
989 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
990 struct ctdb_req_control_old *c,
993 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
994 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
996 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
997 TDB_DATA indata, TDB_DATA *outdata);
999 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1001 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
1004 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
1006 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1007 struct ctdb_req_control_old *c,
1008 TDB_DATA recdata, bool *async_reply);
1010 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1011 struct ctdb_public_ip_list_old *ips,
1013 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1014 struct ctdb_public_ip *ip);
1015 void clear_ip_assignment_tree(struct ctdb_context *ctdb);
1017 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
1018 struct ctdb_req_control_old *c,
1021 /* from ctdb_traverse.c */
1023 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
1024 TDB_DATA data, TDB_DATA *outdata);
1025 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
1026 TDB_DATA data, TDB_DATA *outdata);
1027 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
1028 TDB_DATA data, TDB_DATA *outdata);
1029 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1030 TDB_DATA *outdata, uint32_t srcnode);
1032 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1033 TDB_DATA indata, TDB_DATA *outdata,
1034 uint32_t srcnode, uint32_t client_id);
1035 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
1036 TDB_DATA indata, TDB_DATA *outdata,
1037 uint32_t srcnode, uint32_t client_id);
1039 /* from ctdb_tunables.c */
1041 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1043 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1045 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1046 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
1049 /* from ctdb_update_record.c */
1051 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1052 struct ctdb_req_control_old *c,
1053 TDB_DATA recdata, bool *async_reply);
1055 /* from ctdb_uptime.c */
1057 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
1059 /* from ctdb_vacuum.c */
1061 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1062 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1064 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1066 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1067 const struct ctdb_ltdb_header *hdr,
1070 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1071 const struct ctdb_ltdb_header *hdr,
1072 const TDB_DATA key);
1074 /* from eventscript.c */
1076 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1080 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1081 TALLOC_CTX *mem_ctx,
1082 void (*callback)(struct ctdb_context *,
1085 enum ctdb_event call,
1086 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1088 int ctdb_event_script_args(struct ctdb_context *ctdb,
1089 enum ctdb_event call,
1090 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1092 int ctdb_event_script(struct ctdb_context *ctdb,
1093 enum ctdb_event call);
1095 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1096 struct ctdb_req_control_old *c,
1097 TDB_DATA data, bool *async_reply);
1099 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1100 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);