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 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_interval;
112 uint32_t vacuum_default_interval;
113 uint32_t vacuum_max_run_time;
114 uint32_t repack_limit;
115 uint32_t vacuum_limit;
116 uint32_t vacuum_min_interval;
117 uint32_t vacuum_max_interval;
118 uint32_t max_queue_depth_drop_msg;
119 uint32_t use_status_events_for_monitoring;
120 uint32_t allow_unhealthy_db_read;
121 uint32_t stat_history_interval;
122 uint32_t deferred_attach_timeout;
123 uint32_t vacuum_fast_path_count;
124 uint32_t lcp2_public_ip_assignment;
125 uint32_t allow_client_db_attach;
126 uint32_t recover_pdb_by_seqnum;
130 an installed ctdb remote call
132 struct ctdb_registered_call {
133 struct ctdb_registered_call *next, *prev;
139 this address structure might need to be generalised later for some
142 struct ctdb_address {
148 check that a pnn is valid
150 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
153 /* called from the queue code when a packet comes in. Called with data==NULL
155 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
158 /* used for callbacks in ctdb_control requests */
159 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
160 int32_t status, TDB_DATA data,
161 const char *errormsg,
164 structure describing a connected client in the daemon
167 struct ctdb_context *ctdb;
169 struct ctdb_queue *queue;
172 struct ctdb_tcp_list *tcp_list;
174 uint32_t num_persistent_updates;
175 struct ctdb_client_notify_list *notify;
180 /* state associated with a public ip address */
182 struct ctdb_vnn *prev, *next;
184 struct ctdb_iface *iface;
186 ctdb_sock_addr public_address;
187 uint8_t public_netmask_bits;
189 /* the node number that is serving this public address, if any.
190 If no node serves this ip it is set to -1 */
193 /* List of clients to tickle for this public address */
194 struct ctdb_tcp_array *tcp_array;
196 /* whether we need to update the other nodes with changes to our list
197 of connected clients */
198 bool tcp_update_needed;
200 /* a context to hang sending gratious arp events off */
201 TALLOC_CTX *takeover_ctx;
203 struct ctdb_kill_tcp *killtcp;
207 state associated with one node
210 struct ctdb_context *ctdb;
211 struct ctdb_address address;
212 const char *name; /* for debug messages */
213 void *private_data; /* private to transport */
217 /* used by the dead node monitoring */
222 /* used to track node capabilities, is only valid/tracked inside the
225 uint32_t capabilities;
227 /* a list of controls pending to this node, so we can time them out quickly
228 if the node becomes disconnected */
229 struct daemon_control_state *pending_controls;
231 /* used by the recovery daemon when distributing ip addresses
232 across the nodes. it needs to know which public ip's can be handled
235 struct ctdb_all_public_ips *known_public_ips;
236 struct ctdb_all_public_ips *available_public_ips;
237 /* used by the recovery dameon to track when a node should be banned */
238 struct ctdb_banning_state *ban_state;
242 transport specific methods
244 struct ctdb_methods {
245 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
246 int (*start)(struct ctdb_context *); /* start the transport */
247 int (*add_node)(struct ctdb_node *); /* setup a new node */
248 int (*connect_node)(struct ctdb_node *); /* connect to node */
249 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
250 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
251 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
252 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
256 transport calls up to the ctdb layer
258 struct ctdb_upcalls {
259 /* recv_pkt is called when a packet comes in */
260 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
262 /* node_dead is called when an attempt to send to a node fails */
263 void (*node_dead)(struct ctdb_node *);
265 /* node_connected is called when a connection to a node is established */
266 void (*node_connected)(struct ctdb_node *);
269 /* list of message handlers - needs to be changed to a more efficient data
270 structure so we can find a message handler given a srvid quickly */
271 struct ctdb_message_list {
272 struct ctdb_context *ctdb;
273 struct ctdb_message_list *next, *prev;
275 ctdb_msg_fn_t message_handler;
276 void *message_private;
279 /* additional data required for the daemon mode */
280 struct ctdb_daemon_data {
283 struct ctdb_queue *queue;
287 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
289 if (value > ctdb->statistics.counter) { \
290 ctdb->statistics.counter = c->hopcount; \
292 if (value > ctdb->statistics_current.counter) { \
293 ctdb->statistics_current.counter = c->hopcount; \
297 #define CTDB_INCREMENT_STAT(ctdb, counter) \
299 ctdb->statistics.counter++; \
300 ctdb->statistics_current.counter++; \
303 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
305 ctdb_db->statistics.counter++; \
308 #define CTDB_DECREMENT_STAT(ctdb, counter) \
310 if (ctdb->statistics.counter > 0) \
311 ctdb->statistics.counter--; \
312 if (ctdb->statistics_current.counter > 0) \
313 ctdb->statistics_current.counter--; \
316 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
318 if (value > ctdb->statistics.counter.max) \
319 ctdb->statistics.counter.max = value; \
320 if (value > ctdb->statistics_current.counter.max) \
321 ctdb->statistics_current.counter.max = value; \
323 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
324 ctdb->statistics.counter.min = value; \
325 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
326 ctdb->statistics_current.counter.min = value; \
328 ctdb->statistics.counter.total += value; \
329 ctdb->statistics_current.counter.total += value; \
331 ctdb->statistics.counter.num++; \
332 ctdb->statistics_current.counter.num++; \
334 if (ctdb->tunable.reclock_latency_ms != 0) { \
335 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
336 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
342 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
344 double l = timeval_elapsed(&t); \
346 if (l > ctdb->statistics.counter.max) \
347 ctdb->statistics.counter.max = l; \
348 if (l > ctdb->statistics_current.counter.max) \
349 ctdb->statistics_current.counter.max = l; \
351 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
352 ctdb->statistics.counter.min = l; \
353 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
354 ctdb->statistics_current.counter.min = l; \
356 ctdb->statistics.counter.total += l; \
357 ctdb->statistics_current.counter.total += l; \
359 ctdb->statistics.counter.num++; \
360 ctdb->statistics_current.counter.num++; \
362 if (ctdb->tunable.log_latency_ms !=0) { \
363 if (l*1000 > ctdb->tunable.log_latency_ms) { \
364 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
371 /* a structure that contains the elements required for the write record
374 struct ctdb_write_record {
378 unsigned char blob[1];
381 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
383 #define CTDB_MONITORING_ACTIVE 0
384 #define CTDB_MONITORING_DISABLED 1
386 /* The different capabilities of the ctdb daemon. */
387 #define CTDB_CAP_RECMASTER 0x00000001
388 #define CTDB_CAP_LMASTER 0x00000002
389 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
390 #define CTDB_CAP_LVS 0x00000004
391 /* This capability is set if NATGW is enabled */
392 #define CTDB_CAP_NATGW 0x00000008
394 #define NUM_DB_PRIORITIES 3
395 /* main state of the ctdb daemon */
396 struct ctdb_context {
397 struct tevent_context *ev;
398 struct timeval ctdbd_start_time;
399 struct timeval last_recovery_started;
400 struct timeval last_recovery_finished;
401 uint32_t recovery_mode;
402 TALLOC_CTX *tickle_update_context;
403 TALLOC_CTX *keepalive_ctx;
404 TALLOC_CTX *check_public_ifaces_ctx;
405 struct ctdb_tunable tunable;
406 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
407 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
408 bool freeze_transaction_started;
409 uint32_t freeze_transaction_id;
410 struct ctdb_address address;
412 const char *db_directory;
413 const char *db_directory_persistent;
414 const char *db_directory_state;
415 struct tdb_wrap *db_persistent_health;
416 uint32_t db_persistent_startup_generation;
417 uint64_t db_persistent_check_errors;
418 uint64_t max_persistent_check_errors;
419 const char *transport;
420 char *recovery_lock_file;
421 int recovery_lock_fd;
422 uint32_t pnn; /* our own pnn */
424 uint32_t num_connected;
426 uint32_t capabilities;
427 struct idr_context *idr;
429 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
430 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
431 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
432 struct ctdb_iface *ifaces; /* list of local interfaces */
434 const struct ctdb_methods *methods; /* transport methods */
435 const struct ctdb_upcalls *upcalls; /* transport upcalls */
436 void *private_data; /* private to transport */
437 struct ctdb_db_context *db_list;
438 struct ctdb_message_list *message_list;
439 struct ctdb_daemon_data daemon;
440 struct ctdb_statistics statistics;
441 struct ctdb_statistics statistics_current;
442 #define MAX_STAT_HISTORY 100
443 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
444 struct ctdb_vnn_map *vnn_map;
445 uint32_t num_clients;
446 uint32_t recovery_master;
447 struct ctdb_call_state *pending_calls;
448 struct ctdb_client_ip *client_ip_list;
449 struct trbt_tree *server_ids;
451 void *saved_scheduler_param;
452 const char *event_script_dir;
453 const char *notification_script;
454 const char *default_public_interface;
460 struct ctdb_monitor_state *monitor;
461 struct ctdb_log_state *log;
462 int start_as_disabled;
463 int start_as_stopped;
465 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
466 uint32_t *recd_ping_count;
467 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
469 TALLOC_CTX *event_script_ctx;
471 struct ctdb_event_script_state *current_monitor;
472 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
474 TALLOC_CTX *banning_ctx;
476 struct ctdb_vacuum_child_context *vacuumers;
478 /* mapping from pid to ctdb_client * */
479 struct ctdb_client_pid_list *client_pids;
481 /* used in the recovery daemon to remember the ip allocation */
482 struct trbt_tree *ip_tree;
484 /* Used to defer db attach requests while in recovery mode */
485 struct ctdb_deferred_attach_context *deferred_attach;
487 /* if we are a child process, do we have a domain socket to send controls on */
488 bool can_send_controls;
491 struct ctdb_db_context {
492 struct ctdb_db_context *next, *prev;
493 struct ctdb_context *ctdb;
497 bool readonly; /* Do we support read-only delegations ? */
500 struct tdb_wrap *ltdb;
501 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
502 struct ctdb_registered_call *calls; /* list of registered calls */
504 struct timed_event *seqnum_update;
505 struct ctdb_traverse_local_handle *traverse;
506 bool transaction_active;
507 struct ctdb_vacuum_handle *vacuum_handle;
508 char *unhealthy_reason;
509 int pending_requests;
510 struct lockwait_handle *lockwait_active;
511 struct lockwait_handle *lockwait_overflow;
512 struct revokechild_handle *revokechild_active;
513 struct ctdb_persistent_state *persistent_state;
514 struct trbt_tree *delete_queue;
515 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
517 struct ctdb_ltdb_header *header,
520 /* used to track which records we are currently fetching
521 so we can avoid sending duplicate fetch requests
523 struct trbt_tree *deferred_fetch;
525 struct ctdb_db_statistics statistics;
529 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
530 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
531 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
532 return -1; }} while (0)
534 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
535 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
536 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
539 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
540 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
541 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
542 return NULL; }} while (0)
544 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
545 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
546 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
550 structure passed in set_call control
552 struct ctdb_control_set_call {
559 struct for kill_tcp control
561 struct ctdb_control_killtcp {
562 ctdb_sock_addr src_addr;
563 ctdb_sock_addr dst_addr;
567 struct holding a ctdb_sock_addr and an interface name,
568 used to add/remove public addresses
570 struct ctdb_control_ip_iface {
578 struct holding a ctdb_sock_addr and an interface name,
579 used for send_gratious_arp
581 struct ctdb_control_gratious_arp {
589 persistent store control - update this record on all other nodes
591 struct ctdb_control_persistent_store {
598 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
600 struct ctdb_node_flag_change {
607 struct for admin setting a ban
609 struct ctdb_ban_info {
614 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
616 #define CTDB_LMASTER_ANY 0xffffffff
619 state of a in-progress ctdb call
621 struct ctdb_call_state {
622 struct ctdb_call_state *next, *prev;
623 enum call_state state;
625 struct ctdb_req_call *c;
626 struct ctdb_db_context *ctdb_db;
628 struct ctdb_call *call;
631 void (*fn)(struct ctdb_call_state *);
637 /* used for fetch_lock */
638 struct ctdb_fetch_handle {
639 struct ctdb_db_context *ctdb_db;
642 struct ctdb_ltdb_header header;
645 /* internal prototypes */
646 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
647 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
648 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
649 int ctdb_parse_address(struct ctdb_context *ctdb,
650 TALLOC_CTX *mem_ctx, const char *str,
651 struct ctdb_address *address);
652 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
653 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
654 uint32_t ctdb_hash(const TDB_DATA *key);
655 uint32_t ctdb_hash_string(const char *str);
656 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
657 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
658 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
659 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
660 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
661 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
663 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
664 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
665 TDB_DATA key, struct ctdb_ltdb_header *header,
666 TALLOC_CTX *mem_ctx, TDB_DATA *data);
667 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
668 struct ctdb_ltdb_header *header, TDB_DATA data);
669 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
670 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
671 TDB_DATA key, struct ctdb_ltdb_header *header,
672 TALLOC_CTX *mem_ctx, TDB_DATA *data);
673 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
674 struct ctdb_req_control *c,
676 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
677 struct ctdb_req_control *c,
679 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
680 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
681 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
682 TDB_DATA key, struct ctdb_req_header *hdr,
683 void (*recv_pkt)(void *, struct ctdb_req_header *),
684 void *recv_context, bool ignore_generation);
685 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
686 TDB_DATA key, struct ctdb_ltdb_header *header,
687 struct ctdb_req_header *hdr, TDB_DATA *data,
688 void (*recv_pkt)(void *, struct ctdb_req_header *),
689 void *recv_context, bool ignore_generation);
690 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
692 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
693 struct ctdb_call *call,
694 struct ctdb_ltdb_header *header,
698 int ctdbd_start(struct ctdb_context *ctdb);
699 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
700 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
703 queue a packet for sending
705 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
708 setup the fd used by the queue
710 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
713 setup a packet queue on a socket
715 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
716 TALLOC_CTX *mem_ctx, int fd, int alignment,
718 ctdb_queue_cb_fn_t callback,
719 void *private_data, const char *fmt, ...)
720 PRINTF_ATTRIBUTE(7,8);
723 allocate a packet for use in client<->daemon communication
725 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
727 enum ctdb_operation operation,
728 size_t length, size_t slength,
730 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
731 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
733 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
735 enum ctdb_operation operation,
736 size_t length, size_t slength,
738 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
739 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
741 int ctdb_queue_length(struct ctdb_queue *queue);
744 lock a record in the ltdb, given a key
746 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
749 unlock a record in the ltdb, given a key
751 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
755 make a ctdb call to the local daemon - async send. Called from client context.
757 This constructs a ctdb_call request and queues it for processing.
758 This call never blocks.
760 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
761 struct ctdb_call *call);
764 make a recv call to the local ctdb daemon - called from client context
766 This is called when the program wants to wait for a ctdb_call to complete and get the
767 results. This call will block unless the call has already completed.
769 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
771 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
772 uint64_t srvid, TDB_DATA data);
777 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
778 uint64_t srvid, TDB_DATA data);
781 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
783 void (*callback)(void *), void *private_data);
785 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
786 struct ctdb_call *call);
788 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
790 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
791 struct ctdb_call *call,
792 struct ctdb_ltdb_header *header);
794 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
795 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
796 TDB_DATA *data, bool updatetdb);
798 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
800 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
802 int ctdb_socket_connect(struct ctdb_context *ctdb);
803 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
805 #define CTDB_BAD_REQID ((uint32_t)-1)
806 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
807 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
808 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
810 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
811 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
813 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
814 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
816 ctdb_control_callback_fn_t callback,
819 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
820 TDB_DATA *outdata, uint64_t tdb_flags,
821 bool persistent, uint32_t client_id,
822 struct ctdb_req_control *c,
825 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
826 ctdb_fn_t fn, int id);
828 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
829 uint32_t opcode, uint32_t flags, TDB_DATA data,
830 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
831 struct timeval *timeout, char **errormsg);
832 int ctdb_control_recv(struct ctdb_context *ctdb,
833 struct ctdb_client_control_state *state,
835 TDB_DATA *outdata, int32_t *status, char **errormsg);
837 struct ctdb_client_control_state *
838 ctdb_control_send(struct ctdb_context *ctdb,
839 uint32_t destnode, uint64_t srvid,
840 uint32_t opcode, uint32_t flags, TDB_DATA data,
842 struct timeval *timeout,
848 #define CHECK_CONTROL_DATA_SIZE(size) do { \
849 if (indata.dsize != size) { \
850 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
851 opcode, (unsigned)indata.dsize, (unsigned)size)); \
856 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
857 if (indata.dsize < size) { \
858 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
859 opcode, (unsigned)indata.dsize, (unsigned)size)); \
864 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
865 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
866 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
867 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
868 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
869 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
872 /* structure used for pulldb control */
873 struct ctdb_control_pulldb {
878 /* structure used for sending lists of records */
879 struct ctdb_marshall_buffer {
885 /* set dmaster control structure */
886 struct ctdb_control_set_dmaster {
892 structure for setting a tunable
894 struct ctdb_control_set_tunable {
901 structure for getting a tunable
903 struct ctdb_control_get_tunable {
909 structure for listing tunables
911 struct ctdb_control_list_tunable {
913 /* returns a : separated list of tunable names */
918 struct ctdb_node_and_flagsv4 {
921 struct sockaddr_in sin;
924 struct ctdb_node_mapv4 {
926 struct ctdb_node_and_flagsv4 nodes[1];
929 struct ctdb_control_wipe_database {
931 uint32_t transaction_id;
935 state of a in-progress ctdb call in client
937 struct ctdb_client_call_state {
938 enum call_state state;
940 struct ctdb_db_context *ctdb_db;
941 struct ctdb_call *call;
943 void (*fn)(struct ctdb_client_call_state *);
949 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
954 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
955 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
956 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
957 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
958 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
959 TDB_DATA *outdata, uint32_t srcnode);
961 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
963 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
964 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
965 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
966 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
969 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
970 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
972 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
973 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
975 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
977 struct ctdb_ltdb_header *header,
978 TDB_DATA *key, TDB_DATA *data);
980 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
981 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
982 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
984 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
985 struct ctdb_req_control *c,
986 TDB_DATA indata, bool *async_reply,
987 const char **errormsg);
988 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
989 TDB_DATA *outdata, int32_t status, const char *errormsg);
991 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
992 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
994 int ctdb_start_recoverd(struct ctdb_context *ctdb);
995 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
997 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
999 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1000 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1001 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1002 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1003 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1004 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1005 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1006 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1007 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1010 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1011 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1012 void ctdb_node_dead(struct ctdb_node *node);
1013 void ctdb_node_connected(struct ctdb_node *node);
1014 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1015 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1016 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1017 pid_t ctdb_fork(struct ctdb_context *ctdb);
1018 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1019 struct ctdb_req_control *c,
1022 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1023 struct ctdb_req_control *c,
1026 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1027 struct ctdb_req_control *c,
1030 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1031 struct ctdb_req_control *c,
1034 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1035 struct ctdb_req_control *c,
1037 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1038 struct ctdb_req_control *c,
1041 struct ctdb_public_ipv4 {
1043 struct sockaddr_in sin;
1046 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1047 uint32_t destnode, struct ctdb_public_ip *ip);
1048 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1049 uint32_t destnode, struct ctdb_public_ip *ip);
1051 struct ctdb_all_public_ipsv4 {
1053 struct ctdb_public_ipv4 ips[1];
1056 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1057 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1058 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1059 struct timeval timeout,
1061 TALLOC_CTX *mem_ctx,
1062 struct ctdb_all_public_ips **ips);
1063 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1064 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1065 struct timeval timeout, uint32_t destnode,
1066 TALLOC_CTX *mem_ctx,
1068 struct ctdb_all_public_ips **ips);
1069 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1070 struct timeval timeout, uint32_t destnode,
1071 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1073 struct ctdb_control_iface_info {
1074 char name[CTDB_IFACE_SIZE+2];
1075 uint16_t link_state;
1076 uint32_t references;
1079 struct ctdb_control_public_ip_info {
1080 struct ctdb_public_ip ip;
1081 uint32_t active_idx;
1083 struct ctdb_control_iface_info ifaces[1];
1086 struct ctdb_control_get_ifaces {
1088 struct ctdb_control_iface_info ifaces[1];
1091 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1092 struct ctdb_req_control *c,
1095 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1096 struct ctdb_req_control *c,
1098 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1099 struct ctdb_req_control *c,
1101 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1102 struct timeval timeout, uint32_t destnode,
1103 TALLOC_CTX *mem_ctx,
1104 const ctdb_sock_addr *addr,
1105 struct ctdb_control_public_ip_info **info);
1106 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1107 struct timeval timeout, uint32_t destnode,
1108 TALLOC_CTX *mem_ctx,
1109 struct ctdb_control_get_ifaces **ifaces);
1110 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1111 struct timeval timeout, uint32_t destnode,
1112 TALLOC_CTX *mem_ctx,
1113 const struct ctdb_control_iface_info *info);
1115 /* from takeover/system.c */
1116 uint32_t uint16_checksum(uint16_t *data, size_t n);
1117 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1118 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1119 bool ctdb_sys_check_iface_exists(const char *iface);
1120 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1121 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1122 const ctdb_sock_addr *src,
1123 uint32_t seq, uint32_t ack, int rst);
1125 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1126 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1129 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1130 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1131 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1132 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1134 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1136 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1137 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1138 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1139 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1140 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1141 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1142 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1144 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1145 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1146 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1147 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1148 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1149 TALLOC_CTX *mem_ctx,
1150 void (*callback)(struct ctdb_context *, int, void *),
1153 enum ctdb_eventscript_call call,
1154 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1155 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1157 void set_nonblocking(int fd);
1158 void set_close_on_exec(int fd);
1160 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1162 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1164 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1166 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1167 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1168 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1169 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1170 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1172 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1174 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1176 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1177 struct timeval timeout,
1179 struct ctdb_tunable *tunables);
1181 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1183 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1184 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1185 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1186 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1189 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1190 int ctdb_sys_close_capture_socket(void *private_data);
1191 int ctdb_sys_read_tcp_packet(int s, void *private_data, ctdb_sock_addr *src, ctdb_sock_addr *dst, uint32_t *ack_seq, uint32_t *seq);
1193 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1194 struct timeval timeout,
1196 struct ctdb_control_killtcp *killtcp);
1198 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1199 struct timeval timeout,
1201 struct ctdb_control_ip_iface *pub);
1203 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1204 struct timeval timeout,
1206 struct ctdb_control_ip_iface *pub);
1208 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1209 struct timeval timeout,
1211 ctdb_sock_addr *addr,
1212 const char *ifname);
1214 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1215 struct timeval timeout,
1217 TALLOC_CTX *mem_ctx,
1218 ctdb_sock_addr *addr,
1219 struct ctdb_control_tcp_tickle_list **list);
1222 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1225 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1227 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1229 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1231 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1234 int ctdb_attach_databases(struct ctdb_context *ctdb);
1236 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1237 struct ctdb_req_control *c,
1238 TDB_DATA recdata, bool *async_reply);
1239 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1240 struct ctdb_req_control *c, TDB_DATA recdata,
1242 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1243 struct ctdb_req_control *c,
1244 TDB_DATA recdata, bool *async_reply);
1246 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1247 struct ctdb_req_control *c,
1248 TDB_DATA recdata, bool *async_reply);
1250 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1252 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1253 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1254 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1255 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1256 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1257 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1262 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1263 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1265 void ctdb_block_signal(int signum);
1266 void ctdb_unblock_signal(int signum);
1267 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1268 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1269 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1271 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1273 struct client_async_data {
1274 enum ctdb_controls opcode;
1275 bool dont_log_errors;
1277 uint32_t fail_count;
1278 client_async_callback callback;
1279 client_async_callback fail_callback;
1280 void *callback_data;
1282 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1283 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1284 int ctdb_client_async_control(struct ctdb_context *ctdb,
1285 enum ctdb_controls opcode,
1288 struct timeval timeout,
1289 bool dont_log_errors,
1291 client_async_callback client_callback,
1292 client_async_callback fail_callback,
1293 void *callback_data);
1295 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1297 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1299 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1300 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1302 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1303 struct ctdb_req_control *c);
1304 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1305 struct ctdb_req_control *c);
1306 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1307 struct ctdb_req_control *c,
1310 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1311 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1312 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1314 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1315 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1317 extern int script_log_level;
1318 extern bool fast_start;
1320 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1324 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1325 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1327 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1328 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1330 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1331 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1333 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1334 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1336 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1337 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1338 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1339 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1340 void ctdb_ban_self(struct ctdb_context *ctdb);
1342 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1344 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1346 int start_syslog_daemon(struct ctdb_context *ctdb);
1348 /* Where to send the log messages back to */
1349 struct ctdb_get_log_addr {
1355 extern int log_ringbuf_size;
1357 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1358 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1361 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1362 struct ctdb_context *ctdb,
1363 const char *log_prefix,
1364 void (*logfn)(const char *, uint16_t, void *),
1365 void *logfn_private, pid_t *pid);
1367 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1368 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1370 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1374 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1375 struct ctdb_db_context *ctdb_db);
1376 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1377 struct ctdb_db_context *ctdb_db,
1378 const char *reason,/* NULL means healthy */
1379 int num_healthy_nodes);
1380 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1382 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1384 void ctdb_fault_setup(void);
1386 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1387 struct ctdb_all_public_ips *ips);
1388 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1389 struct ctdb_public_ip *ip);
1391 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1393 int ctdb_statistics_init(struct ctdb_context *ctdb);
1395 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1396 struct ctdb_req_control *c,
1399 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1401 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1404 * structure to pass to a schedule_for_deletion_control
1406 struct ctdb_control_schedule_for_deletion {
1408 struct ctdb_ltdb_header hdr;
1410 uint8_t key[1]; /* key[] */
1413 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1417 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1418 const struct ctdb_ltdb_header *hdr,
1421 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1422 const struct ctdb_ltdb_header *hdr,
1423 const TDB_DATA key);
1425 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1427 /* For unit testing ctdb_transaction.c. */
1428 struct ctdb_public_ip_list {
1429 struct ctdb_public_ip_list *next;
1431 ctdb_sock_addr addr;
1433 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1435 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1437 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1439 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data);
1441 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1443 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_req_header *hdr, deferred_requeue_fn fn, void *call_context);
1445 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1447 int ctdb_null_func(struct ctdb_call_info *call);
1449 int ctdb_fetch_func(struct ctdb_call_info *call);
1451 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1453 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,