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_default_interval;
112 uint32_t vacuum_max_run_time;
113 uint32_t repack_limit;
114 uint32_t vacuum_limit;
115 uint32_t vacuum_min_interval;
116 uint32_t vacuum_max_interval;
117 uint32_t max_queue_depth_drop_msg;
118 uint32_t use_status_events_for_monitoring;
119 uint32_t allow_unhealthy_db_read;
120 uint32_t stat_history_interval;
121 uint32_t deferred_attach_timeout;
122 uint32_t vacuum_fast_path_count;
126 an installed ctdb remote call
128 struct ctdb_registered_call {
129 struct ctdb_registered_call *next, *prev;
135 this address structure might need to be generalised later for some
138 struct ctdb_address {
144 check that a pnn is valid
146 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
149 /* called from the queue code when a packet comes in. Called with data==NULL
151 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
154 /* used for callbacks in ctdb_control requests */
155 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
156 int32_t status, TDB_DATA data,
157 const char *errormsg,
160 structure describing a connected client in the daemon
163 struct ctdb_context *ctdb;
165 struct ctdb_queue *queue;
168 struct ctdb_tcp_list *tcp_list;
170 uint32_t num_persistent_updates;
171 struct ctdb_client_notify_list *notify;
176 /* state associated with a public ip address */
178 struct ctdb_vnn *prev, *next;
180 struct ctdb_iface *iface;
182 ctdb_sock_addr public_address;
183 uint8_t public_netmask_bits;
185 /* the node number that is serving this public address, if any.
186 If no node serves this ip it is set to -1 */
189 /* List of clients to tickle for this public address */
190 struct ctdb_tcp_array *tcp_array;
192 /* whether we need to update the other nodes with changes to our list
193 of connected clients */
194 bool tcp_update_needed;
196 /* a context to hang sending gratious arp events off */
197 TALLOC_CTX *takeover_ctx;
199 struct ctdb_kill_tcp *killtcp;
203 state associated with one node
206 struct ctdb_context *ctdb;
207 struct ctdb_address address;
208 const char *name; /* for debug messages */
209 void *private_data; /* private to transport */
213 /* used by the dead node monitoring */
218 /* used to track node capabilities, is only valid/tracked inside the
221 uint32_t capabilities;
223 /* a list of controls pending to this node, so we can time them out quickly
224 if the node becomes disconnected */
225 struct daemon_control_state *pending_controls;
227 /* used by the recovery daemon when distributing ip addresses
228 across the nodes. it needs to know which public ip's can be handled
231 struct ctdb_all_public_ips *known_public_ips;
232 struct ctdb_all_public_ips *available_public_ips;
233 /* used by the recovery dameon to track when a node should be banned */
234 struct ctdb_banning_state *ban_state;
238 transport specific methods
240 struct ctdb_methods {
241 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
242 int (*start)(struct ctdb_context *); /* start the transport */
243 int (*add_node)(struct ctdb_node *); /* setup a new node */
244 int (*connect_node)(struct ctdb_node *); /* connect to node */
245 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
246 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
247 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
248 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
252 transport calls up to the ctdb layer
254 struct ctdb_upcalls {
255 /* recv_pkt is called when a packet comes in */
256 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
258 /* node_dead is called when an attempt to send to a node fails */
259 void (*node_dead)(struct ctdb_node *);
261 /* node_connected is called when a connection to a node is established */
262 void (*node_connected)(struct ctdb_node *);
265 /* list of message handlers - needs to be changed to a more efficient data
266 structure so we can find a message handler given a srvid quickly */
267 struct ctdb_message_list {
268 struct ctdb_context *ctdb;
269 struct ctdb_message_list *next, *prev;
271 ctdb_msg_fn_t message_handler;
272 void *message_private;
275 /* additional data required for the daemon mode */
276 struct ctdb_daemon_data {
279 struct ctdb_queue *queue;
283 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
285 if (value > ctdb->statistics.counter) { \
286 ctdb->statistics.counter = c->hopcount; \
288 if (value > ctdb->statistics_current.counter) { \
289 ctdb->statistics_current.counter = c->hopcount; \
293 #define CTDB_INCREMENT_STAT(ctdb, counter) \
295 ctdb->statistics.counter++; \
296 ctdb->statistics_current.counter++; \
299 #define CTDB_DECREMENT_STAT(ctdb, counter) \
301 if (ctdb->statistics.counter > 0) \
302 ctdb->statistics.counter--; \
303 if (ctdb->statistics_current.counter > 0) \
304 ctdb->statistics_current.counter--; \
307 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
309 if (value > ctdb->statistics.counter.max) \
310 ctdb->statistics.counter.max = value; \
311 if (value > ctdb->statistics_current.counter.max) \
312 ctdb->statistics_current.counter.max = value; \
314 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
315 ctdb->statistics.counter.min = value; \
316 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
317 ctdb->statistics_current.counter.min = value; \
319 ctdb->statistics.counter.total += value; \
320 ctdb->statistics_current.counter.total += value; \
322 ctdb->statistics.counter.num++; \
323 ctdb->statistics_current.counter.num++; \
325 if (ctdb->tunable.reclock_latency_ms != 0) { \
326 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
327 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
333 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
335 double l = timeval_elapsed(&t); \
337 if (l > ctdb->statistics.counter.max) \
338 ctdb->statistics.counter.max = l; \
339 if (l > ctdb->statistics_current.counter.max) \
340 ctdb->statistics_current.counter.max = l; \
342 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
343 ctdb->statistics.counter.min = l; \
344 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
345 ctdb->statistics_current.counter.min = l; \
347 ctdb->statistics.counter.total += l; \
348 ctdb->statistics_current.counter.total += l; \
350 ctdb->statistics.counter.num++; \
351 ctdb->statistics_current.counter.num++; \
353 if (ctdb->tunable.log_latency_ms !=0) { \
354 if (l*1000 > ctdb->tunable.log_latency_ms) { \
355 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
364 #define INVALID_GENERATION 1
365 /* table that contains the mapping between a hash value and lmaster
367 struct ctdb_vnn_map {
374 a wire representation of the vnn map
376 struct ctdb_vnn_map_wire {
382 /* a structure that contains the elements required for the write record
385 struct ctdb_write_record {
389 unsigned char blob[1];
392 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
394 #define CTDB_MONITORING_ACTIVE 0
395 #define CTDB_MONITORING_DISABLED 1
397 /* The different capabilities of the ctdb daemon. */
398 #define CTDB_CAP_RECMASTER 0x00000001
399 #define CTDB_CAP_LMASTER 0x00000002
400 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
401 #define CTDB_CAP_LVS 0x00000004
402 /* This capability is set if NATGW is enabled */
403 #define CTDB_CAP_NATGW 0x00000008
405 #define NUM_DB_PRIORITIES 3
406 /* main state of the ctdb daemon */
407 struct ctdb_context {
408 struct tevent_context *ev;
409 struct timeval ctdbd_start_time;
410 struct timeval last_recovery_started;
411 struct timeval last_recovery_finished;
412 uint32_t recovery_mode;
413 TALLOC_CTX *tickle_update_context;
414 TALLOC_CTX *keepalive_ctx;
415 struct ctdb_tunable tunable;
416 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
417 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
418 bool freeze_transaction_started;
419 uint32_t freeze_transaction_id;
420 struct ctdb_address address;
422 const char *db_directory;
423 const char *db_directory_persistent;
424 const char *db_directory_state;
425 struct tdb_wrap *db_persistent_health;
426 uint32_t db_persistent_startup_generation;
427 uint64_t db_persistent_check_errors;
428 uint64_t max_persistent_check_errors;
429 const char *transport;
430 char *recovery_lock_file;
431 int recovery_lock_fd;
432 uint32_t pnn; /* our own pnn */
434 uint32_t num_connected;
436 uint32_t capabilities;
437 struct idr_context *idr;
439 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
440 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
441 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
442 struct ctdb_iface *ifaces; /* list of local interfaces */
444 const struct ctdb_methods *methods; /* transport methods */
445 const struct ctdb_upcalls *upcalls; /* transport upcalls */
446 void *private_data; /* private to transport */
447 struct ctdb_db_context *db_list;
448 struct ctdb_message_list *message_list;
449 struct ctdb_daemon_data daemon;
450 struct ctdb_statistics statistics;
451 struct ctdb_statistics statistics_current;
452 #define MAX_STAT_HISTORY 100
453 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
454 struct ctdb_vnn_map *vnn_map;
455 uint32_t num_clients;
456 uint32_t recovery_master;
457 struct ctdb_call_state *pending_calls;
458 struct ctdb_client_ip *client_ip_list;
459 struct trbt_tree *server_ids;
461 void *saved_scheduler_param;
462 const char *event_script_dir;
463 const char *notification_script;
464 const char *default_public_interface;
470 struct ctdb_monitor_state *monitor;
471 struct ctdb_log_state *log;
472 int start_as_disabled;
473 int start_as_stopped;
475 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
476 uint32_t *recd_ping_count;
477 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
479 TALLOC_CTX *event_script_ctx;
481 struct ctdb_event_script_state *current_monitor;
482 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
484 TALLOC_CTX *banning_ctx;
486 struct ctdb_vacuum_child_context *vacuumers;
488 /* mapping from pid to ctdb_client * */
489 struct ctdb_client_pid_list *client_pids;
491 /* used in the recovery daemon to remember the ip allocation */
492 struct trbt_tree *ip_tree;
494 /* Used to defer db attach requests while in recovery mode */
495 struct ctdb_deferred_attach_context *deferred_attach;
498 struct ctdb_db_context {
499 struct ctdb_db_context *next, *prev;
500 struct ctdb_context *ctdb;
506 struct tdb_wrap *ltdb;
507 struct ctdb_registered_call *calls; /* list of registered calls */
509 struct timed_event *seqnum_update;
510 struct ctdb_traverse_local_handle *traverse;
511 bool transaction_active;
512 struct ctdb_vacuum_handle *vacuum_handle;
513 char *unhealthy_reason;
514 int pending_requests;
515 struct lockwait_handle *lockwait_active;
516 struct lockwait_handle *lockwait_overflow;
517 struct ctdb_persistent_state *persistent_state;
518 struct trbt_tree *delete_queue;
522 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
523 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
524 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
525 return -1; }} while (0)
527 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
528 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
529 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
532 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
533 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
534 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
535 return NULL; }} while (0)
537 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
538 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
539 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
543 structure passed in set_call control
545 struct ctdb_control_set_call {
552 struct for kill_tcp control
554 struct ctdb_control_killtcp {
555 ctdb_sock_addr src_addr;
556 ctdb_sock_addr dst_addr;
560 struct holding a ctdb_sock_addr and an interface name,
561 used to add/remove public addresses
563 struct ctdb_control_ip_iface {
571 struct holding a ctdb_sock_addr and an interface name,
572 used for send_gratious_arp
574 struct ctdb_control_gratious_arp {
582 persistent store control - update this record on all other nodes
584 struct ctdb_control_persistent_store {
591 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
593 struct ctdb_node_flag_change {
600 struct for admin setting a ban
602 struct ctdb_ban_info {
607 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
609 #define CTDB_LMASTER_ANY 0xffffffff
612 state of a in-progress ctdb call
614 struct ctdb_call_state {
615 struct ctdb_call_state *next, *prev;
616 enum call_state state;
618 struct ctdb_req_call *c;
619 struct ctdb_db_context *ctdb_db;
621 struct ctdb_call *call;
624 void (*fn)(struct ctdb_call_state *);
630 /* used for fetch_lock */
631 struct ctdb_fetch_handle {
632 struct ctdb_db_context *ctdb_db;
635 struct ctdb_ltdb_header header;
638 /* internal prototypes */
639 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
640 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
641 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
642 int ctdb_parse_address(struct ctdb_context *ctdb,
643 TALLOC_CTX *mem_ctx, const char *str,
644 struct ctdb_address *address);
645 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
646 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
647 uint32_t ctdb_hash(const TDB_DATA *key);
648 uint32_t ctdb_hash_string(const char *str);
649 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
650 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
651 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
652 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
653 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
654 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
656 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
657 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
658 TDB_DATA key, struct ctdb_ltdb_header *header,
659 TALLOC_CTX *mem_ctx, TDB_DATA *data);
660 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
661 struct ctdb_ltdb_header *header, TDB_DATA data);
662 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
663 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
664 struct ctdb_req_control *c,
666 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
667 struct ctdb_req_control *c,
669 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
670 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
671 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
672 TDB_DATA key, struct ctdb_req_header *hdr,
673 void (*recv_pkt)(void *, struct ctdb_req_header *),
674 void *recv_context, bool ignore_generation);
675 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
676 TDB_DATA key, struct ctdb_ltdb_header *header,
677 struct ctdb_req_header *hdr, TDB_DATA *data,
678 void (*recv_pkt)(void *, struct ctdb_req_header *),
679 void *recv_context, bool ignore_generation);
680 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
682 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
683 struct ctdb_call *call,
684 struct ctdb_ltdb_header *header,
688 int ctdbd_start(struct ctdb_context *ctdb);
689 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
690 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
693 queue a packet for sending
695 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
698 setup the fd used by the queue
700 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
703 setup a packet queue on a socket
705 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
706 TALLOC_CTX *mem_ctx, int fd, int alignment,
708 ctdb_queue_cb_fn_t callback,
709 void *private_data, const char *fmt, ...)
710 PRINTF_ATTRIBUTE(7,8);
713 allocate a packet for use in client<->daemon communication
715 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
717 enum ctdb_operation operation,
718 size_t length, size_t slength,
720 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
721 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
723 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
725 enum ctdb_operation operation,
726 size_t length, size_t slength,
728 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
729 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
731 int ctdb_queue_length(struct ctdb_queue *queue);
734 lock a record in the ltdb, given a key
736 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
739 unlock a record in the ltdb, given a key
741 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
745 make a ctdb call to the local daemon - async send. Called from client context.
747 This constructs a ctdb_call request and queues it for processing.
748 This call never blocks.
750 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
751 struct ctdb_call *call);
754 make a recv call to the local ctdb daemon - called from client context
756 This is called when the program wants to wait for a ctdb_call to complete and get the
757 results. This call will block unless the call has already completed.
759 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
761 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
762 uint64_t srvid, TDB_DATA data);
767 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
768 uint64_t srvid, TDB_DATA data);
771 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
773 void (*callback)(void *), void *private_data);
775 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
776 struct ctdb_call *call);
778 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
780 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
781 struct ctdb_call *call,
782 struct ctdb_ltdb_header *header);
784 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
785 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
788 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
790 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
792 int ctdb_socket_connect(struct ctdb_context *ctdb);
794 #define CTDB_BAD_REQID ((uint32_t)-1)
795 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
796 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
797 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
799 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
800 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
802 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
803 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
805 ctdb_control_callback_fn_t callback,
808 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
809 TDB_DATA *outdata, uint64_t tdb_flags,
810 bool persistent, uint32_t client_id,
811 struct ctdb_req_control *c,
814 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
815 ctdb_fn_t fn, int id);
817 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
818 uint32_t opcode, uint32_t flags, TDB_DATA data,
819 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
820 struct timeval *timeout, char **errormsg);
821 int ctdb_control_recv(struct ctdb_context *ctdb,
822 struct ctdb_client_control_state *state,
824 TDB_DATA *outdata, int32_t *status, char **errormsg);
826 struct ctdb_client_control_state *
827 ctdb_control_send(struct ctdb_context *ctdb,
828 uint32_t destnode, uint64_t srvid,
829 uint32_t opcode, uint32_t flags, TDB_DATA data,
831 struct timeval *timeout,
837 #define CHECK_CONTROL_DATA_SIZE(size) do { \
838 if (indata.dsize != size) { \
839 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
840 opcode, (unsigned)indata.dsize, (unsigned)size)); \
845 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
846 if (indata.dsize < size) { \
847 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
848 opcode, (unsigned)indata.dsize, (unsigned)size)); \
853 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
854 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
855 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
856 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
857 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
858 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
861 /* structure used for pulldb control */
862 struct ctdb_control_pulldb {
867 /* structure used for sending lists of records */
868 struct ctdb_marshall_buffer {
874 /* set dmaster control structure */
875 struct ctdb_control_set_dmaster {
881 structure for setting a tunable
883 struct ctdb_control_set_tunable {
890 structure for getting a tunable
892 struct ctdb_control_get_tunable {
898 structure for listing tunables
900 struct ctdb_control_list_tunable {
902 /* returns a : separated list of tunable names */
907 struct ctdb_node_and_flagsv4 {
910 struct sockaddr_in sin;
913 struct ctdb_node_mapv4 {
915 struct ctdb_node_and_flagsv4 nodes[1];
918 struct ctdb_control_wipe_database {
920 uint32_t transaction_id;
924 state of a in-progress ctdb call in client
926 struct ctdb_client_call_state {
927 enum call_state state;
929 struct ctdb_db_context *ctdb_db;
930 struct ctdb_call *call;
932 void (*fn)(struct ctdb_client_call_state *);
938 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
939 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
940 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
941 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
942 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
943 TDB_DATA *outdata, uint32_t srcnode);
945 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
947 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
948 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
949 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
951 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
952 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
954 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
955 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
957 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
959 struct ctdb_ltdb_header *header,
960 TDB_DATA *key, TDB_DATA *data);
962 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
963 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
964 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
966 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
967 struct ctdb_req_control *c,
968 TDB_DATA indata, bool *async_reply,
969 const char **errormsg);
970 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
971 TDB_DATA *outdata, int32_t status, const char *errormsg);
973 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
974 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
976 int ctdb_start_recoverd(struct ctdb_context *ctdb);
977 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
979 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
981 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
982 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
983 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
984 void ctdb_start_monitoring(struct ctdb_context *ctdb);
985 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
986 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
987 void ctdb_start_keepalive(struct ctdb_context *ctdb);
988 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
989 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
992 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
993 void ctdb_call_resend_all(struct ctdb_context *ctdb);
994 void ctdb_node_dead(struct ctdb_node *node);
995 void ctdb_node_connected(struct ctdb_node *node);
996 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
997 void ctdb_set_scheduler(struct ctdb_context *ctdb);
998 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
999 pid_t ctdb_fork(struct ctdb_context *ctdb);
1000 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1001 struct ctdb_req_control *c,
1004 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1005 struct ctdb_req_control *c,
1008 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1009 struct ctdb_req_control *c,
1012 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1013 struct ctdb_req_control *c,
1016 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1017 struct ctdb_req_control *c,
1019 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1020 struct ctdb_req_control *c,
1023 struct ctdb_public_ipv4 {
1025 struct sockaddr_in sin;
1028 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1029 uint32_t destnode, struct ctdb_public_ip *ip);
1030 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1031 uint32_t destnode, struct ctdb_public_ip *ip);
1033 struct ctdb_all_public_ipsv4 {
1035 struct ctdb_public_ipv4 ips[1];
1038 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1039 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1040 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1041 struct timeval timeout,
1043 TALLOC_CTX *mem_ctx,
1044 struct ctdb_all_public_ips **ips);
1045 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1046 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1047 struct timeval timeout, uint32_t destnode,
1048 TALLOC_CTX *mem_ctx,
1050 struct ctdb_all_public_ips **ips);
1051 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1052 struct timeval timeout, uint32_t destnode,
1053 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1056 #define CTDB_IFACE_SIZE IFNAMSIZ
1058 #define CTDB_IFACE_SIZE 16
1061 struct ctdb_control_iface_info {
1062 char name[CTDB_IFACE_SIZE+2];
1063 uint16_t link_state;
1064 uint32_t references;
1067 struct ctdb_control_public_ip_info {
1068 struct ctdb_public_ip ip;
1069 uint32_t active_idx;
1071 struct ctdb_control_iface_info ifaces[1];
1074 struct ctdb_control_get_ifaces {
1076 struct ctdb_control_iface_info ifaces[1];
1079 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1080 struct ctdb_req_control *c,
1083 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1084 struct ctdb_req_control *c,
1086 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1087 struct ctdb_req_control *c,
1089 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1090 struct timeval timeout, uint32_t destnode,
1091 TALLOC_CTX *mem_ctx,
1092 const ctdb_sock_addr *addr,
1093 struct ctdb_control_public_ip_info **info);
1094 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1095 struct timeval timeout, uint32_t destnode,
1096 TALLOC_CTX *mem_ctx,
1097 struct ctdb_control_get_ifaces **ifaces);
1098 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1099 struct timeval timeout, uint32_t destnode,
1100 TALLOC_CTX *mem_ctx,
1101 const struct ctdb_control_iface_info *info);
1103 /* from takeover/system.c */
1104 uint32_t uint16_checksum(uint16_t *data, size_t n);
1105 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1106 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1107 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1108 const ctdb_sock_addr *src,
1109 uint32_t seq, uint32_t ack, int rst);
1111 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1112 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1115 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1116 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1117 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1118 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1120 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1122 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1123 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1124 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1125 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1126 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1127 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1128 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1130 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1131 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1132 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1133 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1134 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1135 TALLOC_CTX *mem_ctx,
1136 void (*callback)(struct ctdb_context *, int, void *),
1139 enum ctdb_eventscript_call call,
1140 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1141 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1143 void set_nonblocking(int fd);
1144 void set_close_on_exec(int fd);
1146 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1148 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1150 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1152 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1153 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1154 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1155 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1156 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1158 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1160 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1162 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1163 struct timeval timeout,
1165 struct ctdb_tunable *tunables);
1167 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1169 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1170 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1171 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1172 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1175 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1176 int ctdb_sys_close_capture_socket(void *private_data);
1177 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);
1179 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1180 struct timeval timeout,
1182 struct ctdb_control_killtcp *killtcp);
1184 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1185 struct timeval timeout,
1187 struct ctdb_control_ip_iface *pub);
1189 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1190 struct timeval timeout,
1192 struct ctdb_control_ip_iface *pub);
1194 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1195 struct timeval timeout,
1197 ctdb_sock_addr *addr,
1198 const char *ifname);
1200 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1201 struct timeval timeout,
1203 TALLOC_CTX *mem_ctx,
1204 ctdb_sock_addr *addr,
1205 struct ctdb_control_tcp_tickle_list **list);
1208 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1211 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1213 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1215 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1217 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1220 int ctdb_attach_databases(struct ctdb_context *ctdb);
1222 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1223 struct ctdb_req_control *c,
1224 TDB_DATA recdata, bool *async_reply);
1225 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1226 struct ctdb_req_control *c, TDB_DATA recdata,
1228 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1229 struct ctdb_req_control *c,
1230 TDB_DATA recdata, bool *async_reply);
1232 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1233 struct ctdb_req_control *c,
1234 TDB_DATA recdata, bool *async_reply);
1236 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1238 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1239 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1240 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1241 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1242 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1243 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1248 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1249 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1251 void ctdb_block_signal(int signum);
1252 void ctdb_unblock_signal(int signum);
1253 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1254 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1255 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1257 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1259 struct client_async_data {
1260 enum ctdb_controls opcode;
1261 bool dont_log_errors;
1263 uint32_t fail_count;
1264 client_async_callback callback;
1265 client_async_callback fail_callback;
1266 void *callback_data;
1268 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1269 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1270 int ctdb_client_async_control(struct ctdb_context *ctdb,
1271 enum ctdb_controls opcode,
1274 struct timeval timeout,
1275 bool dont_log_errors,
1277 client_async_callback client_callback,
1278 client_async_callback fail_callback,
1279 void *callback_data);
1281 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1283 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1285 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1286 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1288 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1289 struct ctdb_req_control *c);
1290 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1291 struct ctdb_req_control *c);
1292 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1293 struct ctdb_req_control *c,
1296 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1297 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1298 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1300 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1301 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1303 extern int script_log_level;
1304 extern bool fast_start;
1306 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1310 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1311 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1313 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1314 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1316 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1317 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1319 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1320 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1322 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1323 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1324 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1325 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1326 void ctdb_ban_self(struct ctdb_context *ctdb);
1328 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1330 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1332 int start_syslog_daemon(struct ctdb_context *ctdb);
1334 /* Where to send the log messages back to */
1335 struct ctdb_get_log_addr {
1341 extern int log_ringbuf_size;
1343 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1344 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1347 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1348 struct ctdb_context *ctdb,
1349 void (*logfn)(const char *, uint16_t, void *),
1350 void *logfn_private, pid_t *pid);
1352 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1353 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1355 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1359 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1360 struct ctdb_db_context *ctdb_db);
1361 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1362 struct ctdb_db_context *ctdb_db,
1363 const char *reason,/* NULL means healthy */
1364 int num_healthy_nodes);
1365 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1367 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1369 void ctdb_fault_setup(void);
1371 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1372 struct ctdb_all_public_ips *ips);
1373 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1374 struct ctdb_public_ip *ip);
1376 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1378 int ctdb_statistics_init(struct ctdb_context *ctdb);
1380 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1381 struct ctdb_req_control *c,
1384 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1386 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1389 * structure to pass to a schedule_for_deletion_control
1391 struct ctdb_control_schedule_for_deletion {
1393 struct ctdb_ltdb_header hdr;
1395 uint8_t key[1]; /* key[] */
1398 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1402 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1403 const struct ctdb_ltdb_header *hdr,
1406 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);