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 * Structures to support SRVID requests and replies
29 struct srvid_request {
34 struct srvid_request_data {
41 a tcp connection description
42 also used by tcp_add and tcp_remove controls
44 struct ctdb_tcp_connection {
45 ctdb_sock_addr src_addr;
46 ctdb_sock_addr dst_addr;
49 /* the wire representation for a tcp tickle array */
50 struct ctdb_tcp_wire_array {
52 struct ctdb_tcp_connection connections[1];
55 /* the list of tcp tickles used by get/set tcp tickle list */
56 struct ctdb_control_tcp_tickle_list {
58 struct ctdb_tcp_wire_array tickles;
62 array of tcp connections
64 struct ctdb_tcp_array {
66 struct ctdb_tcp_connection *connections;
70 /* all tunable variables go in here */
72 uint32_t max_redirect_count;
73 uint32_t seqnum_interval; /* unit is ms */
74 uint32_t control_timeout;
75 uint32_t traverse_timeout;
76 uint32_t keepalive_interval;
77 uint32_t keepalive_limit;
78 uint32_t recover_timeout;
79 uint32_t recover_interval;
80 uint32_t election_timeout;
81 uint32_t takeover_timeout;
82 uint32_t monitor_interval;
83 uint32_t tickle_update_interval;
84 uint32_t script_timeout;
85 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
86 uint32_t script_unhealthy_on_timeout; /* obsolete */
87 uint32_t recovery_grace_period;
88 uint32_t recovery_ban_period;
89 uint32_t database_hash_size;
90 uint32_t database_max_dead;
91 uint32_t rerecovery_timeout;
93 uint32_t deterministic_public_ips;
94 uint32_t reclock_ping_period;
95 uint32_t no_ip_failback;
96 uint32_t disable_ip_failover;
97 uint32_t verbose_memory_names;
98 uint32_t recd_ping_timeout;
99 uint32_t recd_ping_failcount;
100 uint32_t log_latency_ms;
101 uint32_t reclock_latency_ms;
102 uint32_t recovery_drop_all_ips;
103 uint32_t verify_recovery_lock;
104 uint32_t vacuum_interval;
105 uint32_t vacuum_max_run_time;
106 uint32_t repack_limit;
107 uint32_t vacuum_limit;
108 uint32_t max_queue_depth_drop_msg;
109 uint32_t allow_unhealthy_db_read;
110 uint32_t stat_history_interval;
111 uint32_t deferred_attach_timeout;
112 uint32_t vacuum_fast_path_count;
113 uint32_t lcp2_public_ip_assignment;
114 uint32_t allow_client_db_attach;
115 uint32_t recover_pdb_by_seqnum;
116 uint32_t deferred_rebalance_on_node_add;
117 uint32_t fetch_collapse;
118 uint32_t hopcount_make_sticky;
119 uint32_t sticky_duration;
120 uint32_t sticky_pindown;
121 uint32_t no_ip_takeover;
122 uint32_t db_record_count_warn;
123 uint32_t db_record_size_warn;
124 uint32_t db_size_warn;
125 uint32_t pulldb_preallocation_size;
126 uint32_t no_ip_host_on_all_disabled;
127 uint32_t samba3_hack;
128 uint32_t mutex_enabled;
129 uint32_t lock_processes_per_db;
133 an installed ctdb remote call
135 struct ctdb_registered_call {
136 struct ctdb_registered_call *next, *prev;
142 check that a pnn is valid
144 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
147 /* called from the queue code when a packet comes in. Called with data==NULL
149 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
152 /* used for callbacks in ctdb_control requests */
153 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
154 int32_t status, TDB_DATA data,
155 const char *errormsg,
158 structure describing a connected client in the daemon
161 struct ctdb_context *ctdb;
163 struct ctdb_queue *queue;
166 struct ctdb_tcp_list *tcp_list;
168 uint32_t num_persistent_updates;
169 struct ctdb_client_notify_list *notify;
174 /* state associated with a public ip address */
176 struct ctdb_vnn *prev, *next;
178 struct ctdb_iface *iface;
180 ctdb_sock_addr public_address;
181 uint8_t public_netmask_bits;
183 /* the node number that is serving this public address, if any.
184 If no node serves this ip it is set to -1 */
187 /* List of clients to tickle for this public address */
188 struct ctdb_tcp_array *tcp_array;
190 /* whether we need to update the other nodes with changes to our list
191 of connected clients */
192 bool tcp_update_needed;
194 /* a context to hang sending gratious arp events off */
195 TALLOC_CTX *takeover_ctx;
197 struct ctdb_kill_tcp *killtcp;
199 /* Set to true any time an update to this VNN is in flight.
200 This helps to avoid races. */
201 bool update_in_flight;
203 /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
204 * address then this flag is set. It will be deleted in the
205 * release IP callback. */
210 state associated with one node
213 struct ctdb_context *ctdb;
214 ctdb_sock_addr address;
215 const char *name; /* for debug messages */
216 void *private_data; /* private to transport */
220 /* used by the dead node monitoring */
225 /* a list of controls pending to this node, so we can time them out quickly
226 if the node becomes disconnected */
227 struct daemon_control_state *pending_controls;
229 /* used by the recovery daemon when distributing ip addresses
230 across the nodes. it needs to know which public ip's can be handled
233 struct ctdb_all_public_ips *known_public_ips;
234 struct ctdb_all_public_ips *available_public_ips;
235 /* used by the recovery dameon to track when a node should be banned */
236 struct ctdb_banning_state *ban_state;
240 transport specific methods
242 struct ctdb_methods {
243 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
244 int (*start)(struct ctdb_context *); /* start the transport */
245 int (*add_node)(struct ctdb_node *); /* setup a new node */
246 int (*connect_node)(struct ctdb_node *); /* connect to node */
247 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
248 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
249 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
250 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
254 transport calls up to the ctdb layer
256 struct ctdb_upcalls {
257 /* recv_pkt is called when a packet comes in */
258 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
260 /* node_dead is called when an attempt to send to a node fails */
261 void (*node_dead)(struct ctdb_node *);
263 /* node_connected is called when a connection to a node is established */
264 void (*node_connected)(struct ctdb_node *);
267 /* additional data required for the daemon mode */
268 struct ctdb_daemon_data {
271 struct ctdb_queue *queue;
275 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
277 if (value > ctdb->statistics.counter) { \
278 ctdb->statistics.counter = c->hopcount; \
280 if (value > ctdb->statistics_current.counter) { \
281 ctdb->statistics_current.counter = c->hopcount; \
285 #define CTDB_INCREMENT_STAT(ctdb, counter) \
287 ctdb->statistics.counter++; \
288 ctdb->statistics_current.counter++; \
291 #define CTDB_DECREMENT_STAT(ctdb, counter) \
293 if (ctdb->statistics.counter > 0) \
294 ctdb->statistics.counter--; \
295 if (ctdb->statistics_current.counter > 0) \
296 ctdb->statistics_current.counter--; \
299 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
301 ctdb_db->statistics.counter++; \
304 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
306 if (ctdb_db->statistics.counter > 0) \
307 ctdb_db->statistics.counter--; \
310 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
312 if (value > ctdb->statistics.counter.max) \
313 ctdb->statistics.counter.max = value; \
314 if (value > ctdb->statistics_current.counter.max) \
315 ctdb->statistics_current.counter.max = value; \
317 if (ctdb->statistics.counter.num == 0 || \
318 value < ctdb->statistics.counter.min) \
319 ctdb->statistics.counter.min = value; \
320 if (ctdb->statistics_current.counter.num == 0 || \
321 value < ctdb->statistics_current.counter.min) \
322 ctdb->statistics_current.counter.min = value; \
324 ctdb->statistics.counter.total += value; \
325 ctdb->statistics_current.counter.total += value; \
327 ctdb->statistics.counter.num++; \
328 ctdb->statistics_current.counter.num++; \
330 if (ctdb->tunable.reclock_latency_ms != 0) { \
331 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
333 ("High RECLOCK latency %fs for operation %s\n", \
339 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
341 if (value > ctdb_db->statistics.counter.max) \
342 ctdb_db->statistics.counter.max = value; \
343 if (ctdb_db->statistics.counter.num == 0 || \
344 value < ctdb_db->statistics.counter.min) \
345 ctdb_db->statistics.counter.min = value; \
347 ctdb_db->statistics.counter.total += value; \
348 ctdb_db->statistics.counter.num++; \
350 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
351 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
353 ("High latency %.6fs for operation %s on database %s\n",\
354 value, operation, ctdb_db->db_name)); \
359 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
361 double l = timeval_elapsed(&t); \
363 if (l > ctdb->statistics.counter.max) \
364 ctdb->statistics.counter.max = l; \
365 if (l > ctdb->statistics_current.counter.max) \
366 ctdb->statistics_current.counter.max = l; \
368 if (ctdb->statistics.counter.num == 0 || \
369 l < ctdb->statistics.counter.min) \
370 ctdb->statistics.counter.min = l; \
371 if (ctdb->statistics_current.counter.num == 0 || \
372 l < ctdb->statistics_current.counter.min) \
373 ctdb->statistics_current.counter.min = l; \
375 ctdb->statistics.counter.total += l; \
376 ctdb->statistics_current.counter.total += l; \
378 ctdb->statistics.counter.num++; \
379 ctdb->statistics_current.counter.num++; \
381 if (ctdb->tunable.log_latency_ms != 0) { \
382 if (l*1000 > ctdb->tunable.log_latency_ms) { \
383 DEBUG(DEBUG_WARNING, \
384 ("High latency %.6fs for operation %s on database %s\n",\
385 l, operation, db->db_name)); \
392 /* a structure that contains the elements required for the write record
395 struct ctdb_write_record {
399 unsigned char blob[1];
402 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
405 CTDB_RUNSTATE_UNKNOWN,
408 CTDB_RUNSTATE_FIRST_RECOVERY,
409 CTDB_RUNSTATE_STARTUP,
410 CTDB_RUNSTATE_RUNNING,
411 CTDB_RUNSTATE_SHUTDOWN,
414 #define CTDB_MONITORING_ACTIVE 0
415 #define CTDB_MONITORING_DISABLED 1
417 #define NUM_DB_PRIORITIES 3
418 /* main state of the ctdb daemon */
419 struct ctdb_context {
420 struct tevent_context *ev;
421 struct timeval ctdbd_start_time;
422 struct timeval last_recovery_started;
423 struct timeval last_recovery_finished;
424 uint32_t recovery_mode;
425 TALLOC_CTX *tickle_update_context;
426 TALLOC_CTX *keepalive_ctx;
427 TALLOC_CTX *check_public_ifaces_ctx;
428 struct ctdb_tunable tunable;
429 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
430 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
431 bool freeze_transaction_started;
432 uint32_t freeze_transaction_id;
433 ctdb_sock_addr *address;
435 const char *db_directory;
436 const char *db_directory_persistent;
437 const char *db_directory_state;
438 struct tdb_wrap *db_persistent_health;
439 uint32_t db_persistent_startup_generation;
440 uint64_t db_persistent_check_errors;
441 uint64_t max_persistent_check_errors;
442 const char *transport;
443 char *recovery_lock_file;
444 int recovery_lock_fd;
445 uint32_t pnn; /* our own pnn */
447 uint32_t num_connected;
449 uint32_t capabilities;
450 struct reqid_context *idr;
451 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
452 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
453 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
454 struct ctdb_iface *ifaces; /* list of local interfaces */
456 const struct ctdb_methods *methods; /* transport methods */
457 const struct ctdb_upcalls *upcalls; /* transport upcalls */
458 void *private_data; /* private to transport */
459 struct ctdb_db_context *db_list;
460 struct srvid_context *srv;
461 struct ctdb_daemon_data daemon;
462 struct ctdb_statistics statistics;
463 struct ctdb_statistics statistics_current;
464 #define MAX_STAT_HISTORY 100
465 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
466 struct ctdb_vnn_map *vnn_map;
467 uint32_t num_clients;
468 uint32_t recovery_master;
469 struct ctdb_client_ip *client_ip_list;
470 bool do_checkpublicip;
471 struct trbt_tree *server_ids;
473 const char *event_script_dir;
474 const char *notification_script;
475 const char *default_public_interface;
478 enum ctdb_runstate runstate;
479 struct ctdb_monitor_state *monitor;
480 int start_as_disabled;
481 int start_as_stopped;
483 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
484 uint32_t *recd_ping_count;
485 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
486 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
488 TALLOC_CTX *event_script_ctx;
491 struct ctdb_event_script_state *current_monitor;
492 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
494 TALLOC_CTX *banning_ctx;
496 struct ctdb_vacuum_child_context *vacuumers;
498 /* mapping from pid to ctdb_client * */
499 struct ctdb_client_pid_list *client_pids;
501 /* used in the recovery daemon to remember the ip allocation */
502 struct trbt_tree *ip_tree;
504 /* Used to defer db attach requests while in recovery mode */
505 struct ctdb_deferred_attach_context *deferred_attach;
507 /* if we are a child process, do we have a domain socket to send controls on */
508 bool can_send_controls;
510 /* list of event script callback functions that are active */
511 struct event_script_callback *script_callbacks;
513 struct ctdb_reloadips_handle *reload_ips;
515 const char *nodes_file;
516 const char *public_addresses_file;
517 struct trbt_tree *child_processes;
519 /* Used for locking record/db/alldb */
520 struct lock_context *lock_current;
521 struct lock_context *lock_pending;
524 struct ctdb_db_context {
525 struct ctdb_db_context *next, *prev;
526 struct ctdb_context *ctdb;
530 bool readonly; /* Do we support read-only delegations ? */
531 bool sticky; /* Do we support sticky records ? */
534 struct tdb_wrap *ltdb;
535 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
536 struct ctdb_registered_call *calls; /* list of registered calls */
538 struct tevent_timer *seqnum_update;
539 struct ctdb_traverse_local_handle *traverse;
540 struct ctdb_vacuum_handle *vacuum_handle;
541 char *unhealthy_reason;
542 int pending_requests;
543 struct revokechild_handle *revokechild_active;
544 struct ctdb_persistent_state *persistent_state;
545 struct trbt_tree *delete_queue;
546 struct trbt_tree *sticky_records;
547 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
549 struct ctdb_ltdb_header *header,
552 /* used to track which records we are currently fetching
553 so we can avoid sending duplicate fetch requests
555 struct trbt_tree *deferred_fetch;
556 struct trbt_tree *defer_dmaster;
558 struct ctdb_db_statistics statistics;
560 struct lock_context *lock_current;
561 struct lock_context *lock_pending;
562 int lock_num_current;
564 struct ctdb_call_state *pending_calls;
566 enum ctdb_freeze_mode freeze_mode;
567 struct ctdb_db_freeze_handle *freeze_handle;
568 bool freeze_transaction_started;
569 uint32_t freeze_transaction_id;
574 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
575 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
576 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
577 return -1; }} while (0)
579 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
580 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
581 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
584 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
585 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
586 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
587 return NULL; }} while (0)
589 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
590 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
591 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
595 struct holding a ctdb_sock_addr and an interface name,
596 used to add/remove public addresses
598 struct ctdb_control_ip_iface {
606 struct holding a ctdb_sock_addr and an interface name,
607 used for send_gratious_arp
609 struct ctdb_control_gratious_arp {
617 persistent store control - update this record on all other nodes
619 struct ctdb_control_persistent_store {
626 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
628 struct ctdb_node_flag_change {
635 struct for admin setting a ban
637 struct ctdb_ban_info {
642 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
644 #define CTDB_LMASTER_ANY 0xffffffff
647 state of a in-progress ctdb call
649 struct ctdb_call_state {
650 struct ctdb_call_state *next, *prev;
651 enum call_state state;
653 struct ctdb_req_call *c;
654 struct ctdb_db_context *ctdb_db;
656 struct ctdb_call *call;
659 void (*fn)(struct ctdb_call_state *);
665 /* used for fetch_lock */
666 struct ctdb_fetch_handle {
667 struct ctdb_db_context *ctdb_db;
670 struct ctdb_ltdb_header header;
673 /* internal prototypes */
675 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
677 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
678 struct ctdb_req_control *c,
680 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
681 struct ctdb_req_control *c,
683 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
684 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
685 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
686 TDB_DATA key, struct ctdb_req_header *hdr,
687 void (*recv_pkt)(void *, struct ctdb_req_header *),
688 void *recv_context, bool ignore_generation);
689 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
690 TDB_DATA key, struct ctdb_ltdb_header *header,
691 struct ctdb_req_header *hdr, TDB_DATA *data,
692 void (*recv_pkt)(void *, struct ctdb_req_header *),
693 void *recv_context, bool ignore_generation);
694 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
697 allocate a packet for use in client<->daemon communication
699 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
701 enum ctdb_operation operation,
702 size_t length, size_t slength,
704 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
705 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
707 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
708 uint64_t srvid, TDB_DATA data);
710 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
711 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
712 TDB_DATA *data, bool updatetdb);
714 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
716 int ctdb_socket_connect(struct ctdb_context *ctdb);
717 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
719 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
720 TDB_DATA *outdata, uint64_t tdb_flags,
721 bool persistent, uint32_t client_id,
722 struct ctdb_req_control *c,
724 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
727 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
728 uint32_t opcode, uint32_t flags, TDB_DATA data,
729 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
730 struct timeval *timeout, char **errormsg);
731 int ctdb_control_recv(struct ctdb_context *ctdb,
732 struct ctdb_client_control_state *state,
734 TDB_DATA *outdata, int32_t *status, char **errormsg);
736 struct ctdb_client_control_state *
737 ctdb_control_send(struct ctdb_context *ctdb,
738 uint32_t destnode, uint64_t srvid,
739 uint32_t opcode, uint32_t flags, TDB_DATA data,
741 struct timeval *timeout,
747 #define CHECK_CONTROL_DATA_SIZE(size) do { \
748 if (indata.dsize != size) { \
749 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
750 opcode, (unsigned)indata.dsize, (unsigned)size)); \
755 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
756 if (indata.dsize < size) { \
757 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
758 opcode, (unsigned)indata.dsize, (unsigned)size)); \
763 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
764 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
765 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
766 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
769 /* structure used for pulldb control */
770 struct ctdb_control_pulldb {
775 /* structure used for sending lists of records */
776 struct ctdb_marshall_buffer {
783 structure for setting a tunable
785 struct ctdb_control_set_tunable {
792 structure for getting a tunable
794 struct ctdb_control_get_tunable {
800 structure for listing tunables
802 struct ctdb_control_list_tunable {
804 /* returns a : separated list of tunable names */
809 struct ctdb_control_transdb {
811 uint32_t transaction_id;
815 state of a in-progress ctdb call in client
817 struct ctdb_client_call_state {
818 enum call_state state;
820 struct ctdb_db_context *ctdb_db;
821 struct ctdb_call *call;
823 void (*fn)(struct ctdb_client_call_state *);
829 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
834 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
835 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
836 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
837 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
838 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
839 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
840 TDB_DATA *outdata, uint32_t srcnode);
842 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
843 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
845 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
846 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
848 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
849 struct ctdb_req_control *c,
850 TDB_DATA indata, bool *async_reply,
851 const char **errormsg);
853 int ctdb_start_recoverd(struct ctdb_context *ctdb);
854 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
856 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
858 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
859 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
860 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
861 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
862 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
863 void ctdb_start_keepalive(struct ctdb_context *ctdb);
864 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
865 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
868 void ctdb_node_dead(struct ctdb_node *node);
869 void ctdb_node_connected(struct ctdb_node *node);
871 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
872 struct ctdb_req_control *c,
875 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
876 struct ctdb_req_control *c,
879 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
880 struct ctdb_req_control *c,
882 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
883 struct ctdb_req_control *c,
885 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
886 struct ctdb_req_control *c,
889 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
890 uint32_t destnode, struct ctdb_public_ip *ip);
891 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
892 uint32_t destnode, struct ctdb_public_ip *ip);
894 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
895 struct ctdb_req_control *c,
897 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
898 struct timeval timeout,
901 struct ctdb_all_public_ips **ips);
902 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
903 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
904 struct timeval timeout, uint32_t destnode,
907 struct ctdb_all_public_ips **ips);
909 struct ctdb_control_iface_info {
910 char name[CTDB_IFACE_SIZE+2];
915 struct ctdb_control_public_ip_info {
916 struct ctdb_public_ip ip;
919 struct ctdb_control_iface_info ifaces[1];
922 struct ctdb_control_get_ifaces {
924 struct ctdb_control_iface_info ifaces[1];
927 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
928 struct ctdb_req_control *c,
931 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
932 struct ctdb_req_control *c,
934 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
935 struct ctdb_req_control *c,
937 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
938 struct timeval timeout, uint32_t destnode,
940 const ctdb_sock_addr *addr,
941 struct ctdb_control_public_ip_info **info);
942 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
943 struct timeval timeout, uint32_t destnode,
945 struct ctdb_control_get_ifaces **ifaces);
946 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
947 struct timeval timeout, uint32_t destnode,
949 const struct ctdb_control_iface_info *info);
951 /* Details of a byte range lock */
952 struct ctdb_lock_info {
959 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
961 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
962 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
965 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
966 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
967 uint32_t *force_rebalance_nodes,
968 client_async_callback fail_callback, void *callback_data);
970 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
972 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
973 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
974 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
975 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
976 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
977 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
978 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
980 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
981 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
982 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
983 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
984 int ctdb_event_script_callback(struct ctdb_context *ctdb,
986 void (*callback)(struct ctdb_context *, int, void *),
988 enum ctdb_eventscript_call call,
989 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
990 void ctdb_release_all_ips(struct ctdb_context *ctdb);
992 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
993 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
994 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
996 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
998 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1000 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1001 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1002 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1003 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1004 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1005 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1006 struct ctdb_req_control *c,
1007 TDB_DATA recdata, bool *async_reply);
1009 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1011 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1013 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1014 struct timeval timeout,
1016 struct ctdb_tunable *tunables);
1018 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1019 struct timeval timeout,
1021 struct ctdb_tcp_connection *killtcp);
1023 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1024 struct timeval timeout,
1026 struct ctdb_control_ip_iface *pub);
1028 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1029 struct timeval timeout,
1031 struct ctdb_control_ip_iface *pub);
1033 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1034 struct timeval timeout,
1036 ctdb_sock_addr *addr,
1037 const char *ifname);
1039 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1040 struct timeval timeout,
1042 TALLOC_CTX *mem_ctx,
1043 ctdb_sock_addr *addr,
1044 struct ctdb_control_tcp_tickle_list **list);
1047 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1050 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1052 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1054 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1056 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1059 int ctdb_attach_databases(struct ctdb_context *ctdb);
1061 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1062 struct ctdb_req_control *c,
1063 TDB_DATA recdata, bool *async_reply);
1064 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1065 struct ctdb_req_control *c, TDB_DATA recdata,
1068 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1069 struct ctdb_req_control *c,
1070 TDB_DATA recdata, bool *async_reply);
1072 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1074 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1075 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1079 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1080 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1081 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1083 struct client_async_data {
1084 enum ctdb_controls opcode;
1085 bool dont_log_errors;
1087 uint32_t fail_count;
1088 client_async_callback callback;
1089 client_async_callback fail_callback;
1090 void *callback_data;
1092 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1093 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1094 int ctdb_client_async_control(struct ctdb_context *ctdb,
1095 enum ctdb_controls opcode,
1098 struct timeval timeout,
1099 bool dont_log_errors,
1101 client_async_callback client_callback,
1102 client_async_callback fail_callback,
1103 void *callback_data);
1105 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1107 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1109 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1111 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1112 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1114 extern int script_log_level;
1115 extern bool fast_start;
1116 extern const char *ctdbd_pidfile;
1118 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1122 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1124 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1125 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1127 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1128 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1130 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1131 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1133 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
1134 struct ctdb_context *ctdb,
1135 const char *log_prefix,
1138 const char **helper_argv,
1139 void (*logfn)(const char *, uint16_t, void *),
1140 void *logfn_private, pid_t *pid);
1143 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1147 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1148 struct ctdb_db_context *ctdb_db);
1149 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1150 struct ctdb_db_context *ctdb_db,
1151 const char *reason,/* NULL means healthy */
1152 int num_healthy_nodes);
1153 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1155 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1157 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1158 struct ctdb_all_public_ips *ips,
1160 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1161 struct ctdb_public_ip *ip);
1162 void clear_ip_assignment_tree(struct ctdb_context *ctdb);
1164 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1166 int ctdb_statistics_init(struct ctdb_context *ctdb);
1168 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1169 struct ctdb_req_control *c,
1172 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1174 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1177 * structure to pass to a schedule_for_deletion_control
1179 struct ctdb_control_schedule_for_deletion {
1181 struct ctdb_ltdb_header hdr;
1183 uint8_t key[1]; /* key[] */
1186 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1190 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1191 const struct ctdb_ltdb_header *hdr,
1194 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1195 const struct ctdb_ltdb_header *hdr,
1196 const TDB_DATA key);
1198 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1200 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1202 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1204 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
1206 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1210 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1213 description for a message to reload all ips via recovery master/daemon
1215 struct reloadips_all_reply {
1220 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1222 /* from tcp/ and ib/ */
1224 int ctdb_tcp_init(struct ctdb_context *ctdb);
1225 int ctdb_ibw_init(struct ctdb_context *ctdb);
1227 /* from ctdb_banning.c */
1229 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1230 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1231 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1232 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
1233 uint32_t client_id);
1234 void ctdb_ban_self(struct ctdb_context *ctdb);
1236 /* from ctdb_call.c */
1238 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
1240 void ctdb_request_dmaster(struct ctdb_context *ctdb,
1241 struct ctdb_req_header *hdr);
1242 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
1243 struct ctdb_req_header *hdr);
1244 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1245 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1246 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
1248 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
1249 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1251 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
1252 struct ctdb_call *call,
1253 struct ctdb_ltdb_header *header,
1256 struct ctdb_call_state *ctdb_daemon_call_send_remote(
1257 struct ctdb_db_context *ctdb_db,
1258 struct ctdb_call *call,
1259 struct ctdb_ltdb_header *header);
1260 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
1261 struct ctdb_call *call);
1263 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1265 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
1266 struct ctdb_db_context *ctdb_db,
1267 TDB_DATA key, struct ctdb_ltdb_header *header,
1270 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
1271 struct ctdb_db_context *ctdb_db,
1272 TDB_DATA key, struct ctdb_req_header *hdr,
1273 deferred_requeue_fn fn, void *call_context);
1275 /* from server/ctdb_control.c */
1277 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1279 void ctdb_request_control_reply(struct ctdb_context *ctdb,
1280 struct ctdb_req_control *c,
1281 TDB_DATA *outdata, int32_t status,
1282 const char *errormsg);
1284 void ctdb_request_control(struct ctdb_context *ctdb,
1285 struct ctdb_req_header *hdr);
1286 void ctdb_reply_control(struct ctdb_context *ctdb,
1287 struct ctdb_req_header *hdr);
1289 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
1290 uint64_t srvid, uint32_t opcode,
1291 uint32_t client_id, uint32_t flags,
1293 ctdb_control_callback_fn_t callback,
1294 void *private_data);
1296 /* from server/ctdb_daemon.c */
1298 int daemon_register_message_handler(struct ctdb_context *ctdb,
1299 uint32_t client_id, uint64_t srvid);
1300 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
1301 uint32_t client_id, uint64_t srvid);
1302 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1305 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
1307 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
1308 TALLOC_CTX *mem_ctx,
1309 enum ctdb_operation operation,
1310 size_t length, size_t slength,
1313 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
1314 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
1315 sizeof(type), #type)
1317 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
1318 struct ctdb_node *node);
1320 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
1321 ctdb_fn_t fn, int id);
1323 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
1324 uint64_t srvid, TDB_DATA data);
1326 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
1327 uint32_t client_id, TDB_DATA indata);
1328 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
1329 uint32_t client_id, TDB_DATA indata);
1331 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
1334 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1336 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
1337 TDB_DATA indata, TDB_DATA *outdata);
1339 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
1341 /* from server/ctdb_freeze.c */
1343 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
1344 struct ctdb_req_control *c,
1345 uint32_t db_id, bool *async_reply);
1346 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
1348 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
1349 struct ctdb_req_control *c, bool *async_reply);
1350 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
1351 bool check_recmode);
1353 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1355 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
1357 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
1359 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
1362 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1363 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1364 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1366 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1368 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
1369 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
1370 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
1372 /* from server/ctdb_lock.c */
1373 struct lock_request;
1375 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
1376 void *private_data);
1378 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
1379 ctdb_db_handler_t handler, void *private_data);
1380 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
1381 void *private_data);
1383 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1384 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1386 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
1387 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
1389 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
1390 struct ctdb_db_context *ctdb_db,
1393 void (*callback)(void *, bool),
1394 void *private_data);
1396 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
1397 struct ctdb_db_context *ctdb_db,
1399 void (*callback)(void *, bool),
1400 void *private_data);
1402 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
1403 struct ctdb_context *ctdb,
1406 void (*callback)(void *, bool),
1407 void *private_data);
1409 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
1410 struct ctdb_context *ctdb,
1412 void (*callback)(void *, bool),
1413 void *private_data);