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;
74 /* state associated with a public ip address */
76 struct ctdb_vnn *prev, *next;
78 struct ctdb_interface *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 /* Set to true any time an update to this VNN is in flight.
98 This helps to avoid races. */
99 bool update_in_flight;
101 /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
102 * address then this flag is set. It will be deleted in the
103 * release IP callback. */
108 state associated with one node
111 struct ctdb_context *ctdb;
112 ctdb_sock_addr address;
113 const char *name; /* for debug messages */
114 void *private_data; /* private to transport */
118 /* used by the dead node monitoring */
123 /* a list of controls pending to this node, so we can time them out quickly
124 if the node becomes disconnected */
125 struct daemon_control_state *pending_controls;
127 /* used by the recovery dameon to track when a node should be banned */
128 struct ctdb_banning_state *ban_state;
132 transport specific methods
134 struct ctdb_methods {
135 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
136 int (*start)(struct ctdb_context *); /* start the transport */
137 int (*add_node)(struct ctdb_node *); /* setup a new node */
138 int (*connect_node)(struct ctdb_node *); /* connect to node */
139 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
140 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
141 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
142 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
146 transport calls up to the ctdb layer
148 struct ctdb_upcalls {
149 /* recv_pkt is called when a packet comes in */
150 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
152 /* node_dead is called when an attempt to send to a node fails */
153 void (*node_dead)(struct ctdb_node *);
155 /* node_connected is called when a connection to a node is established */
156 void (*node_connected)(struct ctdb_node *);
159 /* additional data required for the daemon mode */
160 struct ctdb_daemon_data {
163 struct ctdb_queue *queue;
167 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
169 if (value > ctdb->statistics.counter) { \
170 ctdb->statistics.counter = c->hopcount; \
172 if (value > ctdb->statistics_current.counter) { \
173 ctdb->statistics_current.counter = c->hopcount; \
177 #define CTDB_INCREMENT_STAT(ctdb, counter) \
179 ctdb->statistics.counter++; \
180 ctdb->statistics_current.counter++; \
183 #define CTDB_DECREMENT_STAT(ctdb, counter) \
185 if (ctdb->statistics.counter > 0) \
186 ctdb->statistics.counter--; \
187 if (ctdb->statistics_current.counter > 0) \
188 ctdb->statistics_current.counter--; \
191 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
193 ctdb_db->statistics.counter++; \
196 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
198 if (ctdb_db->statistics.counter > 0) \
199 ctdb_db->statistics.counter--; \
202 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
204 if (value > ctdb->statistics.counter.max) \
205 ctdb->statistics.counter.max = value; \
206 if (value > ctdb->statistics_current.counter.max) \
207 ctdb->statistics_current.counter.max = value; \
209 if (ctdb->statistics.counter.num == 0 || \
210 value < ctdb->statistics.counter.min) \
211 ctdb->statistics.counter.min = value; \
212 if (ctdb->statistics_current.counter.num == 0 || \
213 value < ctdb->statistics_current.counter.min) \
214 ctdb->statistics_current.counter.min = value; \
216 ctdb->statistics.counter.total += value; \
217 ctdb->statistics_current.counter.total += value; \
219 ctdb->statistics.counter.num++; \
220 ctdb->statistics_current.counter.num++; \
222 if (ctdb->tunable.reclock_latency_ms != 0) { \
223 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
225 ("High RECLOCK latency %fs for operation %s\n", \
231 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
233 if (value > ctdb_db->statistics.counter.max) \
234 ctdb_db->statistics.counter.max = value; \
235 if (ctdb_db->statistics.counter.num == 0 || \
236 value < ctdb_db->statistics.counter.min) \
237 ctdb_db->statistics.counter.min = value; \
239 ctdb_db->statistics.counter.total += value; \
240 ctdb_db->statistics.counter.num++; \
242 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
243 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
245 ("High latency %.6fs for operation %s on database %s\n",\
246 value, operation, ctdb_db->db_name)); \
251 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
253 double l = timeval_elapsed(&t); \
255 if (l > ctdb->statistics.counter.max) \
256 ctdb->statistics.counter.max = l; \
257 if (l > ctdb->statistics_current.counter.max) \
258 ctdb->statistics_current.counter.max = l; \
260 if (ctdb->statistics.counter.num == 0 || \
261 l < ctdb->statistics.counter.min) \
262 ctdb->statistics.counter.min = l; \
263 if (ctdb->statistics_current.counter.num == 0 || \
264 l < ctdb->statistics_current.counter.min) \
265 ctdb->statistics_current.counter.min = l; \
267 ctdb->statistics.counter.total += l; \
268 ctdb->statistics_current.counter.total += l; \
270 ctdb->statistics.counter.num++; \
271 ctdb->statistics_current.counter.num++; \
273 if (ctdb->tunable.log_latency_ms != 0) { \
274 if (l*1000 > ctdb->tunable.log_latency_ms) { \
275 DEBUG(DEBUG_WARNING, \
276 ("High latency %.6fs for operation %s on database %s\n",\
277 l, operation, db->db_name)); \
283 struct ctdb_cluster_mutex_handle;
285 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
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;
300 struct ctdb_freeze_handle *freeze_handle;
301 bool freeze_transaction_started;
302 uint32_t freeze_transaction_id;
303 ctdb_sock_addr *address;
305 const char *db_directory;
306 const char *db_directory_persistent;
307 const char *db_directory_state;
308 struct tdb_wrap *db_persistent_health;
309 uint32_t db_persistent_startup_generation;
310 uint64_t db_persistent_check_errors;
311 uint64_t max_persistent_check_errors;
312 const char *transport;
313 const char *recovery_lock;
314 uint32_t pnn; /* our own pnn */
316 uint32_t num_connected;
318 uint32_t capabilities;
319 struct reqid_context *idr;
320 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
321 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
322 struct ctdb_interface *ifaces; /* list of local interfaces */
324 const struct ctdb_methods *methods; /* transport methods */
325 const struct ctdb_upcalls *upcalls; /* transport upcalls */
326 void *private_data; /* private to transport */
327 struct ctdb_db_context *db_list;
328 struct srvid_context *srv;
329 struct ctdb_daemon_data daemon;
330 struct ctdb_statistics statistics;
331 struct ctdb_statistics statistics_current;
332 #define MAX_STAT_HISTORY 100
333 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
334 struct ctdb_vnn_map *vnn_map;
335 uint32_t num_clients;
336 uint32_t recovery_master;
337 struct ctdb_client_ip *client_ip_list;
338 bool do_checkpublicip;
340 const char *event_script_dir;
341 const char *notification_script;
342 const char *default_public_interface;
345 enum ctdb_runstate runstate;
346 struct ctdb_monitor_state *monitor;
347 int start_as_disabled;
348 int start_as_stopped;
350 uint32_t *recd_ping_count;
351 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
352 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
354 TALLOC_CTX *event_script_ctx;
357 struct ctdb_event_script_state *current_monitor;
358 struct ctdb_script_list_old *last_status[CTDB_EVENT_MAX];
360 TALLOC_CTX *banning_ctx;
362 struct ctdb_vacuum_child_context *vacuumers;
364 /* mapping from pid to ctdb_client * */
365 struct ctdb_client_pid_list *client_pids;
367 /* Used to defer db attach requests while in recovery mode */
368 struct ctdb_deferred_attach_context *deferred_attach;
370 /* if we are a child process, do we have a domain socket to send controls on */
371 bool can_send_controls;
373 /* list of event script callback functions that are active */
374 struct event_script_callback *script_callbacks;
376 struct ctdb_reloadips_handle *reload_ips;
378 const char *nodes_file;
379 const char *public_addresses_file;
380 struct trbt_tree *child_processes;
382 /* Used for locking record/db/alldb */
383 struct lock_context *lock_current;
384 struct lock_context *lock_pending;
387 struct ctdb_db_context {
388 struct ctdb_db_context *next, *prev;
389 struct ctdb_context *ctdb;
392 bool readonly; /* Do we support read-only delegations ? */
393 bool sticky; /* Do we support sticky records ? */
396 struct tdb_wrap *ltdb;
397 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
398 struct ctdb_registered_call *calls; /* list of registered calls */
400 struct tevent_timer *seqnum_update;
401 struct ctdb_traverse_local_handle *traverse;
402 struct ctdb_vacuum_handle *vacuum_handle;
403 char *unhealthy_reason;
404 int pending_requests;
405 struct revokechild_handle *revokechild_active;
406 struct ctdb_persistent_state *persistent_state;
407 struct trbt_tree *delete_queue;
408 struct trbt_tree *sticky_records;
409 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
411 struct ctdb_ltdb_header *header,
414 /* used to track which records we are currently fetching
415 so we can avoid sending duplicate fetch requests
417 struct trbt_tree *deferred_fetch;
418 struct trbt_tree *defer_dmaster;
420 struct ctdb_db_statistics_old statistics;
422 struct lock_context *lock_current;
423 struct lock_context *lock_pending;
424 int lock_num_current;
426 struct ctdb_call_state *pending_calls;
428 enum ctdb_freeze_mode freeze_mode;
429 struct ctdb_db_freeze_handle *freeze_handle;
430 bool freeze_transaction_started;
431 uint32_t freeze_transaction_id;
439 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
440 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
441 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
442 return -1; }} while (0)
444 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
445 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
446 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
449 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
450 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
451 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
452 return NULL; }} while (0)
454 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
455 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
456 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
460 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
463 state of a in-progress ctdb call
465 struct ctdb_call_state {
466 struct ctdb_call_state *next, *prev;
467 enum call_state state;
469 struct ctdb_req_call_old *c;
470 struct ctdb_db_context *ctdb_db;
472 struct ctdb_call *call;
475 void (*fn)(struct ctdb_call_state *);
480 /* internal prototypes */
482 #define CHECK_CONTROL_DATA_SIZE(size) do { \
483 if (indata.dsize != size) { \
484 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
485 opcode, (unsigned)indata.dsize, (unsigned)size)); \
490 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
491 if (indata.dsize < size) { \
492 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
493 opcode, (unsigned)indata.dsize, (unsigned)size)); \
499 state of a in-progress ctdb call in client
501 struct ctdb_client_call_state {
502 enum call_state state;
504 struct ctdb_db_context *ctdb_db;
505 struct ctdb_call *call;
507 void (*fn)(struct ctdb_client_call_state *);
512 extern int script_log_level;
513 extern bool fast_start;
514 extern const char *ctdbd_pidfile;
516 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
519 /* from tcp/ and ib/ */
521 int ctdb_tcp_init(struct ctdb_context *ctdb);
522 int ctdb_ibw_init(struct ctdb_context *ctdb);
524 /* from ctdb_banning.c */
526 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
527 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
528 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
529 void ctdb_ban_self(struct ctdb_context *ctdb);
531 /* from ctdb_call.c */
533 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
535 void ctdb_request_dmaster(struct ctdb_context *ctdb,
536 struct ctdb_req_header *hdr);
537 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
538 struct ctdb_req_header *hdr);
539 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
540 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
541 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
543 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
544 void ctdb_call_resend_all(struct ctdb_context *ctdb);
546 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
547 struct ctdb_call *call,
548 struct ctdb_ltdb_header *header,
551 struct ctdb_call_state *ctdb_daemon_call_send_remote(
552 struct ctdb_db_context *ctdb_db,
553 struct ctdb_call *call,
554 struct ctdb_ltdb_header *header);
555 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
556 struct ctdb_call *call);
558 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
560 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
561 struct ctdb_db_context *ctdb_db,
562 TDB_DATA key, struct ctdb_ltdb_header *header,
565 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
566 struct ctdb_db_context *ctdb_db,
567 TDB_DATA key, struct ctdb_req_header *hdr,
568 deferred_requeue_fn fn, void *call_context);
570 /* from server/ctdb_control.c */
572 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
574 void ctdb_request_control_reply(struct ctdb_context *ctdb,
575 struct ctdb_req_control_old *c,
576 TDB_DATA *outdata, int32_t status,
577 const char *errormsg);
579 void ctdb_request_control(struct ctdb_context *ctdb,
580 struct ctdb_req_header *hdr);
581 void ctdb_reply_control(struct ctdb_context *ctdb,
582 struct ctdb_req_header *hdr);
584 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
585 uint64_t srvid, uint32_t opcode,
586 uint32_t client_id, uint32_t flags,
588 ctdb_control_callback_fn_t callback,
591 /* from server/ctdb_daemon.c */
593 int daemon_register_message_handler(struct ctdb_context *ctdb,
594 uint32_t client_id, uint64_t srvid);
595 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
596 uint32_t client_id, uint64_t srvid);
597 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
600 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
602 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
604 enum ctdb_operation operation,
605 size_t length, size_t slength,
608 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
609 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
612 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
613 struct ctdb_node *node);
615 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
616 ctdb_fn_t fn, int id);
618 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
619 uint64_t srvid, TDB_DATA data);
621 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
622 uint32_t client_id, TDB_DATA indata);
623 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
624 uint32_t client_id, TDB_DATA indata);
626 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
629 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
631 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
632 TDB_DATA indata, TDB_DATA *outdata);
634 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
636 int switch_from_server_to_client(struct ctdb_context *ctdb,
637 const char *fmt, ...);
639 /* From server/ctdb_fork.c */
641 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
643 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
645 pid_t ctdb_fork(struct ctdb_context *ctdb);
647 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
649 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
651 /* from server/ctdb_freeze.c */
653 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
654 struct ctdb_req_control_old *c,
655 uint32_t db_id, bool *async_reply);
656 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
658 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
659 struct ctdb_req_control_old *c, bool *async_reply);
660 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, bool check_recmode);
662 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
664 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
666 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
668 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
671 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
672 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
673 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
675 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
677 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
678 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
680 /* from server/ctdb_keepalive.c */
682 void ctdb_start_keepalive(struct ctdb_context *ctdb);
683 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
685 /* from server/ctdb_lock.c */
689 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
692 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
693 ctdb_db_handler_t handler, void *private_data);
694 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
697 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
699 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
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 /* from ctdb_logging.c */
716 extern const char *debug_extra;
718 typedef int (*ctdb_log_setup_fn_t)(TALLOC_CTX *mem_ctx,
720 const char *app_name);
722 void ctdb_log_register_backend(const char *prefix, ctdb_log_setup_fn_t init);
724 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging);
726 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
727 struct ctdb_context *ctdb,
728 const char *log_prefix,
731 const char **helper_argv,
732 void (*logfn)(const char *,
734 void *logfn_private, pid_t *pid);
736 int ctdb_set_child_logging(struct ctdb_context *ctdb);
737 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
739 /* from ctdb_logging_file.c */
741 void ctdb_log_init_file(void);
743 /* from ctdb_logging_syslog.c */
745 void ctdb_log_init_syslog(void);
747 /* from ctdb_ltdb_server.c */
749 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
750 TDB_DATA key, struct ctdb_req_header *hdr,
751 void (*recv_pkt)(void *, struct ctdb_req_header *),
752 void *recv_context, bool ignore_generation);
754 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
755 TDB_DATA key, struct ctdb_ltdb_header *header,
756 struct ctdb_req_header *hdr, TDB_DATA *data,
757 void (*recv_pkt)(void *, struct ctdb_req_header *),
758 void *recv_context, bool ignore_generation);
760 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
761 struct ctdb_db_context *ctdb_db);
762 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
763 struct ctdb_db_context *ctdb_db,
764 const char *reason,/* NULL means healthy */
765 int num_healthy_nodes);
766 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
768 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
770 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
771 TDB_DATA indata, TDB_DATA *outdata);
773 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
774 struct ctdb_db_context *ctdb_db);
776 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
778 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
779 TDB_DATA *outdata, uint64_t tdb_flags,
780 bool persistent, uint32_t client_id,
781 struct ctdb_req_control_old *c,
783 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
786 int ctdb_attach_databases(struct ctdb_context *ctdb);
788 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
790 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
792 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
793 struct ctdb_db_context *ctdb_db);
795 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
797 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
798 uint32_t db_id, TDB_DATA *outdata);
800 /* from ctdb_monitor.c */
802 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
803 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
805 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
806 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
807 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
809 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
811 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
813 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
814 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
816 /* from ctdb_persistent.c */
818 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
820 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
821 struct ctdb_req_control_old *c,
822 TDB_DATA recdata, bool *async_reply);
824 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
825 struct ctdb_req_control_old *c,
827 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
828 struct ctdb_req_control_old *c,
831 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
832 TDB_DATA indata, TDB_DATA *outdata);
834 /* from ctdb_recover.c */
836 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
837 TDB_DATA indata, TDB_DATA *outdata);
838 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
839 TDB_DATA indata, TDB_DATA *outdata);
841 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
842 TDB_DATA indata, TDB_DATA *outdata);
843 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
844 TDB_DATA indata, TDB_DATA *outdata);
846 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
848 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata,
850 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
852 int32_t ctdb_control_db_pull(struct ctdb_context *ctdb,
853 struct ctdb_req_control_old *c,
854 TDB_DATA indata, TDB_DATA *outdata);
855 int32_t ctdb_control_db_push_start(struct ctdb_context *ctdb,
857 int32_t ctdb_control_db_push_confirm(struct ctdb_context *ctdb,
858 TDB_DATA indata, TDB_DATA *outdata);
860 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
862 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
863 struct ctdb_req_control_old *c,
864 TDB_DATA indata, bool *async_reply,
865 const char **errormsg);
867 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
868 struct ctdb_req_control_old *c,
870 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
871 struct ctdb_req_control_old *c,
874 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
875 TDB_DATA indata, TDB_DATA *outdata);
876 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb,
877 TDB_DATA indata, TDB_DATA *outdata);
879 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
882 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
883 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb,
884 uint32_t opcode, TDB_DATA indata);
886 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
887 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
889 /* from ctdb_recoverd.c */
891 int ctdb_start_recoverd(struct ctdb_context *ctdb);
892 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
894 /* from ctdb_server.c */
896 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
898 int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const ctdb_sock_addr *nodeip);
900 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
902 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
904 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
906 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
908 void ctdb_node_dead(struct ctdb_node *node);
909 void ctdb_node_connected(struct ctdb_node *node);
911 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
912 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
913 struct ctdb_req_header *hdr, unsigned opcode);
915 /* from ctdb_serverids.c */
917 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
918 uint32_t client_id, TDB_DATA indata);
919 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
921 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
923 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
926 /* from ctdb_statistics.c */
928 int ctdb_statistics_init(struct ctdb_context *ctdb);
930 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
931 struct ctdb_req_control_old *c,
934 /* from ctdb_takeover.c */
936 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
937 struct ctdb_req_control_old *c,
940 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
941 struct ctdb_req_control_old *c,
944 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
945 struct ctdb_req_control_old *c,
948 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
950 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map_old *nodemap,
951 uint32_t *force_rebalance_nodes);
953 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
955 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
956 bool tcp_update_needed);
957 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
958 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
960 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
962 void ctdb_release_all_ips(struct ctdb_context *ctdb);
964 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
965 struct ctdb_req_control_old *c,
967 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
968 struct ctdb_req_control_old *c,
969 TDB_DATA indata, TDB_DATA *outdata);
971 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
972 struct ctdb_req_control_old *c,
974 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
975 struct ctdb_req_control_old *c,
978 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
980 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
981 TDB_DATA indata, TDB_DATA *outdata);
983 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
985 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
988 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
990 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
991 struct ctdb_req_control_old *c,
992 TDB_DATA recdata, bool *async_reply);
994 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
995 struct ctdb_req_control_old *c,
998 /* from ctdb_traverse.c */
1000 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
1001 TDB_DATA data, TDB_DATA *outdata);
1002 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
1003 TDB_DATA data, TDB_DATA *outdata);
1004 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
1005 TDB_DATA data, TDB_DATA *outdata);
1006 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1007 TDB_DATA *outdata, uint32_t srcnode);
1009 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1010 TDB_DATA indata, TDB_DATA *outdata,
1011 uint32_t srcnode, uint32_t client_id);
1012 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
1013 TDB_DATA indata, TDB_DATA *outdata,
1014 uint32_t srcnode, uint32_t client_id);
1016 /* from ctdb_tunables.c */
1018 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1020 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1022 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1023 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
1026 /* from ctdb_update_record.c */
1028 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1029 struct ctdb_req_control_old *c,
1030 TDB_DATA recdata, bool *async_reply);
1032 /* from ctdb_uptime.c */
1034 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
1036 /* from ctdb_vacuum.c */
1038 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1039 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1041 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1043 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1044 const struct ctdb_ltdb_header *hdr,
1047 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1048 const struct ctdb_ltdb_header *hdr,
1049 const TDB_DATA key);
1051 /* from eventscript.c */
1053 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1057 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1058 TALLOC_CTX *mem_ctx,
1059 void (*callback)(struct ctdb_context *,
1062 enum ctdb_event call,
1063 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1065 int ctdb_event_script_args(struct ctdb_context *ctdb,
1066 enum ctdb_event call,
1067 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1069 int ctdb_event_script(struct ctdb_context *ctdb,
1070 enum ctdb_event call);
1072 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb,
1073 struct ctdb_req_control_old *c,
1074 TDB_DATA data, bool *async_reply);
1076 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1077 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);