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;
123 uint32_t lcp2_public_ip_assignment;
124 uint32_t allow_client_db_attach;
128 an installed ctdb remote call
130 struct ctdb_registered_call {
131 struct ctdb_registered_call *next, *prev;
137 this address structure might need to be generalised later for some
140 struct ctdb_address {
146 check that a pnn is valid
148 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
151 /* called from the queue code when a packet comes in. Called with data==NULL
153 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
156 /* used for callbacks in ctdb_control requests */
157 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
158 int32_t status, TDB_DATA data,
159 const char *errormsg,
162 structure describing a connected client in the daemon
165 struct ctdb_context *ctdb;
167 struct ctdb_queue *queue;
170 struct ctdb_tcp_list *tcp_list;
172 uint32_t num_persistent_updates;
173 struct ctdb_client_notify_list *notify;
178 /* state associated with a public ip address */
180 struct ctdb_vnn *prev, *next;
182 struct ctdb_iface *iface;
184 ctdb_sock_addr public_address;
185 uint8_t public_netmask_bits;
187 /* the node number that is serving this public address, if any.
188 If no node serves this ip it is set to -1 */
191 /* List of clients to tickle for this public address */
192 struct ctdb_tcp_array *tcp_array;
194 /* whether we need to update the other nodes with changes to our list
195 of connected clients */
196 bool tcp_update_needed;
198 /* a context to hang sending gratious arp events off */
199 TALLOC_CTX *takeover_ctx;
201 struct ctdb_kill_tcp *killtcp;
205 state associated with one node
208 struct ctdb_context *ctdb;
209 struct ctdb_address address;
210 const char *name; /* for debug messages */
211 void *private_data; /* private to transport */
215 /* used by the dead node monitoring */
220 /* used to track node capabilities, is only valid/tracked inside the
223 uint32_t capabilities;
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 /* list of message handlers - needs to be changed to a more efficient data
268 structure so we can find a message handler given a srvid quickly */
269 struct ctdb_message_list {
270 struct ctdb_context *ctdb;
271 struct ctdb_message_list *next, *prev;
273 ctdb_msg_fn_t message_handler;
274 void *message_private;
277 /* additional data required for the daemon mode */
278 struct ctdb_daemon_data {
281 struct ctdb_queue *queue;
285 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
287 if (value > ctdb->statistics.counter) { \
288 ctdb->statistics.counter = c->hopcount; \
290 if (value > ctdb->statistics_current.counter) { \
291 ctdb->statistics_current.counter = c->hopcount; \
295 #define CTDB_INCREMENT_STAT(ctdb, counter) \
297 ctdb->statistics.counter++; \
298 ctdb->statistics_current.counter++; \
301 #define CTDB_DECREMENT_STAT(ctdb, counter) \
303 if (ctdb->statistics.counter > 0) \
304 ctdb->statistics.counter--; \
305 if (ctdb->statistics_current.counter > 0) \
306 ctdb->statistics_current.counter--; \
309 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
311 if (value > ctdb->statistics.counter.max) \
312 ctdb->statistics.counter.max = value; \
313 if (value > ctdb->statistics_current.counter.max) \
314 ctdb->statistics_current.counter.max = value; \
316 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
317 ctdb->statistics.counter.min = value; \
318 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
319 ctdb->statistics_current.counter.min = value; \
321 ctdb->statistics.counter.total += value; \
322 ctdb->statistics_current.counter.total += value; \
324 ctdb->statistics.counter.num++; \
325 ctdb->statistics_current.counter.num++; \
327 if (ctdb->tunable.reclock_latency_ms != 0) { \
328 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
329 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
335 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
337 double l = timeval_elapsed(&t); \
339 if (l > ctdb->statistics.counter.max) \
340 ctdb->statistics.counter.max = l; \
341 if (l > ctdb->statistics_current.counter.max) \
342 ctdb->statistics_current.counter.max = l; \
344 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
345 ctdb->statistics.counter.min = l; \
346 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
347 ctdb->statistics_current.counter.min = l; \
349 ctdb->statistics.counter.total += l; \
350 ctdb->statistics_current.counter.total += l; \
352 ctdb->statistics.counter.num++; \
353 ctdb->statistics_current.counter.num++; \
355 if (ctdb->tunable.log_latency_ms !=0) { \
356 if (l*1000 > ctdb->tunable.log_latency_ms) { \
357 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
366 #define INVALID_GENERATION 1
367 /* table that contains the mapping between a hash value and lmaster
369 struct ctdb_vnn_map {
376 a wire representation of the vnn map
378 struct ctdb_vnn_map_wire {
384 /* a structure that contains the elements required for the write record
387 struct ctdb_write_record {
391 unsigned char blob[1];
394 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
396 #define CTDB_MONITORING_ACTIVE 0
397 #define CTDB_MONITORING_DISABLED 1
399 /* The different capabilities of the ctdb daemon. */
400 #define CTDB_CAP_RECMASTER 0x00000001
401 #define CTDB_CAP_LMASTER 0x00000002
402 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
403 #define CTDB_CAP_LVS 0x00000004
404 /* This capability is set if NATGW is enabled */
405 #define CTDB_CAP_NATGW 0x00000008
407 #define NUM_DB_PRIORITIES 3
408 /* main state of the ctdb daemon */
409 struct ctdb_context {
410 struct tevent_context *ev;
411 struct timeval ctdbd_start_time;
412 struct timeval last_recovery_started;
413 struct timeval last_recovery_finished;
414 uint32_t recovery_mode;
415 TALLOC_CTX *tickle_update_context;
416 TALLOC_CTX *keepalive_ctx;
417 struct ctdb_tunable tunable;
418 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
419 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
420 bool freeze_transaction_started;
421 uint32_t freeze_transaction_id;
422 struct ctdb_address address;
424 const char *db_directory;
425 const char *db_directory_persistent;
426 const char *db_directory_state;
427 struct tdb_wrap *db_persistent_health;
428 uint32_t db_persistent_startup_generation;
429 uint64_t db_persistent_check_errors;
430 uint64_t max_persistent_check_errors;
431 const char *transport;
432 char *recovery_lock_file;
433 int recovery_lock_fd;
434 uint32_t pnn; /* our own pnn */
436 uint32_t num_connected;
438 uint32_t capabilities;
439 struct idr_context *idr;
441 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
442 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
443 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
444 struct ctdb_iface *ifaces; /* list of local interfaces */
446 const struct ctdb_methods *methods; /* transport methods */
447 const struct ctdb_upcalls *upcalls; /* transport upcalls */
448 void *private_data; /* private to transport */
449 struct ctdb_db_context *db_list;
450 struct ctdb_message_list *message_list;
451 struct ctdb_daemon_data daemon;
452 struct ctdb_statistics statistics;
453 struct ctdb_statistics statistics_current;
454 #define MAX_STAT_HISTORY 100
455 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
456 struct ctdb_vnn_map *vnn_map;
457 uint32_t num_clients;
458 uint32_t recovery_master;
459 struct ctdb_call_state *pending_calls;
460 struct ctdb_client_ip *client_ip_list;
461 struct trbt_tree *server_ids;
463 void *saved_scheduler_param;
464 const char *event_script_dir;
465 const char *notification_script;
466 const char *default_public_interface;
472 struct ctdb_monitor_state *monitor;
473 struct ctdb_log_state *log;
474 int start_as_disabled;
475 int start_as_stopped;
477 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
478 uint32_t *recd_ping_count;
479 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
481 TALLOC_CTX *event_script_ctx;
483 struct ctdb_event_script_state *current_monitor;
484 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
486 TALLOC_CTX *banning_ctx;
488 struct ctdb_vacuum_child_context *vacuumers;
490 /* mapping from pid to ctdb_client * */
491 struct ctdb_client_pid_list *client_pids;
493 /* used in the recovery daemon to remember the ip allocation */
494 struct trbt_tree *ip_tree;
496 /* Used to defer db attach requests while in recovery mode */
497 struct ctdb_deferred_attach_context *deferred_attach;
500 struct ctdb_db_context {
501 struct ctdb_db_context *next, *prev;
502 struct ctdb_context *ctdb;
508 struct tdb_wrap *ltdb;
509 struct ctdb_registered_call *calls; /* list of registered calls */
511 struct timed_event *seqnum_update;
512 struct ctdb_traverse_local_handle *traverse;
513 bool transaction_active;
514 struct ctdb_vacuum_handle *vacuum_handle;
515 char *unhealthy_reason;
516 int pending_requests;
517 struct lockwait_handle *lockwait_active;
518 struct lockwait_handle *lockwait_overflow;
519 struct ctdb_persistent_state *persistent_state;
520 struct trbt_tree *delete_queue;
521 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
523 struct ctdb_ltdb_header *header,
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 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
671 struct ctdb_req_control *c,
673 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
674 struct ctdb_req_control *c,
676 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
677 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
678 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
679 TDB_DATA key, struct ctdb_req_header *hdr,
680 void (*recv_pkt)(void *, struct ctdb_req_header *),
681 void *recv_context, bool ignore_generation);
682 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
683 TDB_DATA key, struct ctdb_ltdb_header *header,
684 struct ctdb_req_header *hdr, TDB_DATA *data,
685 void (*recv_pkt)(void *, struct ctdb_req_header *),
686 void *recv_context, bool ignore_generation);
687 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
689 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
690 struct ctdb_call *call,
691 struct ctdb_ltdb_header *header,
695 int ctdbd_start(struct ctdb_context *ctdb);
696 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
697 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
700 queue a packet for sending
702 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
705 setup the fd used by the queue
707 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
710 setup a packet queue on a socket
712 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
713 TALLOC_CTX *mem_ctx, int fd, int alignment,
715 ctdb_queue_cb_fn_t callback,
716 void *private_data, const char *fmt, ...)
717 PRINTF_ATTRIBUTE(7,8);
720 allocate a packet for use in client<->daemon communication
722 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
724 enum ctdb_operation operation,
725 size_t length, size_t slength,
727 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
728 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
730 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
732 enum ctdb_operation operation,
733 size_t length, size_t slength,
735 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
736 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
738 int ctdb_queue_length(struct ctdb_queue *queue);
741 lock a record in the ltdb, given a key
743 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
746 unlock a record in the ltdb, given a key
748 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
752 make a ctdb call to the local daemon - async send. Called from client context.
754 This constructs a ctdb_call request and queues it for processing.
755 This call never blocks.
757 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
758 struct ctdb_call *call);
761 make a recv call to the local ctdb daemon - called from client context
763 This is called when the program wants to wait for a ctdb_call to complete and get the
764 results. This call will block unless the call has already completed.
766 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
768 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
769 uint64_t srvid, TDB_DATA data);
774 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
775 uint64_t srvid, TDB_DATA data);
778 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
780 void (*callback)(void *), void *private_data);
782 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
783 struct ctdb_call *call);
785 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
787 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
788 struct ctdb_call *call,
789 struct ctdb_ltdb_header *header);
791 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
792 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
795 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
797 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
799 int ctdb_socket_connect(struct ctdb_context *ctdb);
801 #define CTDB_BAD_REQID ((uint32_t)-1)
802 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
803 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
804 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
806 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
807 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
809 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
810 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
812 ctdb_control_callback_fn_t callback,
815 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
816 TDB_DATA *outdata, uint64_t tdb_flags,
817 bool persistent, uint32_t client_id,
818 struct ctdb_req_control *c,
821 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
822 ctdb_fn_t fn, int id);
824 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
825 uint32_t opcode, uint32_t flags, TDB_DATA data,
826 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
827 struct timeval *timeout, char **errormsg);
828 int ctdb_control_recv(struct ctdb_context *ctdb,
829 struct ctdb_client_control_state *state,
831 TDB_DATA *outdata, int32_t *status, char **errormsg);
833 struct ctdb_client_control_state *
834 ctdb_control_send(struct ctdb_context *ctdb,
835 uint32_t destnode, uint64_t srvid,
836 uint32_t opcode, uint32_t flags, TDB_DATA data,
838 struct timeval *timeout,
844 #define CHECK_CONTROL_DATA_SIZE(size) do { \
845 if (indata.dsize != size) { \
846 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
847 opcode, (unsigned)indata.dsize, (unsigned)size)); \
852 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
853 if (indata.dsize < size) { \
854 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
855 opcode, (unsigned)indata.dsize, (unsigned)size)); \
860 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
861 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
862 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
863 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
864 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
865 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
868 /* structure used for pulldb control */
869 struct ctdb_control_pulldb {
874 /* structure used for sending lists of records */
875 struct ctdb_marshall_buffer {
881 /* set dmaster control structure */
882 struct ctdb_control_set_dmaster {
888 structure for setting a tunable
890 struct ctdb_control_set_tunable {
897 structure for getting a tunable
899 struct ctdb_control_get_tunable {
905 structure for listing tunables
907 struct ctdb_control_list_tunable {
909 /* returns a : separated list of tunable names */
914 struct ctdb_node_and_flagsv4 {
917 struct sockaddr_in sin;
920 struct ctdb_node_mapv4 {
922 struct ctdb_node_and_flagsv4 nodes[1];
925 struct ctdb_control_wipe_database {
927 uint32_t transaction_id;
931 state of a in-progress ctdb call in client
933 struct ctdb_client_call_state {
934 enum call_state state;
936 struct ctdb_db_context *ctdb_db;
937 struct ctdb_call *call;
939 void (*fn)(struct ctdb_client_call_state *);
945 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
946 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
947 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
948 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
949 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
950 TDB_DATA *outdata, uint32_t srcnode);
952 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
954 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
955 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
956 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
958 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
959 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
961 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
962 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
964 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
966 struct ctdb_ltdb_header *header,
967 TDB_DATA *key, TDB_DATA *data);
969 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
970 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
971 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
973 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
974 struct ctdb_req_control *c,
975 TDB_DATA indata, bool *async_reply,
976 const char **errormsg);
977 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
978 TDB_DATA *outdata, int32_t status, const char *errormsg);
980 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
981 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
983 int ctdb_start_recoverd(struct ctdb_context *ctdb);
984 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
986 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
988 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
989 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
990 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
991 void ctdb_start_monitoring(struct ctdb_context *ctdb);
992 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
993 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
994 void ctdb_start_keepalive(struct ctdb_context *ctdb);
995 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
996 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
999 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1000 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1001 void ctdb_node_dead(struct ctdb_node *node);
1002 void ctdb_node_connected(struct ctdb_node *node);
1003 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1004 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1005 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1006 pid_t ctdb_fork(struct ctdb_context *ctdb);
1007 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1008 struct ctdb_req_control *c,
1011 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1012 struct ctdb_req_control *c,
1015 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1016 struct ctdb_req_control *c,
1019 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1020 struct ctdb_req_control *c,
1023 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1024 struct ctdb_req_control *c,
1026 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1027 struct ctdb_req_control *c,
1030 struct ctdb_public_ipv4 {
1032 struct sockaddr_in sin;
1035 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1036 uint32_t destnode, struct ctdb_public_ip *ip);
1037 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1038 uint32_t destnode, struct ctdb_public_ip *ip);
1040 struct ctdb_all_public_ipsv4 {
1042 struct ctdb_public_ipv4 ips[1];
1045 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1046 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1047 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1048 struct timeval timeout,
1050 TALLOC_CTX *mem_ctx,
1051 struct ctdb_all_public_ips **ips);
1052 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1053 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1054 struct timeval timeout, uint32_t destnode,
1055 TALLOC_CTX *mem_ctx,
1057 struct ctdb_all_public_ips **ips);
1058 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1059 struct timeval timeout, uint32_t destnode,
1060 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1063 #define CTDB_IFACE_SIZE IFNAMSIZ
1065 #define CTDB_IFACE_SIZE 16
1068 struct ctdb_control_iface_info {
1069 char name[CTDB_IFACE_SIZE+2];
1070 uint16_t link_state;
1071 uint32_t references;
1074 struct ctdb_control_public_ip_info {
1075 struct ctdb_public_ip ip;
1076 uint32_t active_idx;
1078 struct ctdb_control_iface_info ifaces[1];
1081 struct ctdb_control_get_ifaces {
1083 struct ctdb_control_iface_info ifaces[1];
1086 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1087 struct ctdb_req_control *c,
1090 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1091 struct ctdb_req_control *c,
1093 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1094 struct ctdb_req_control *c,
1096 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1097 struct timeval timeout, uint32_t destnode,
1098 TALLOC_CTX *mem_ctx,
1099 const ctdb_sock_addr *addr,
1100 struct ctdb_control_public_ip_info **info);
1101 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1102 struct timeval timeout, uint32_t destnode,
1103 TALLOC_CTX *mem_ctx,
1104 struct ctdb_control_get_ifaces **ifaces);
1105 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1106 struct timeval timeout, uint32_t destnode,
1107 TALLOC_CTX *mem_ctx,
1108 const struct ctdb_control_iface_info *info);
1110 /* from takeover/system.c */
1111 uint32_t uint16_checksum(uint16_t *data, size_t n);
1112 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1113 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1114 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1115 const ctdb_sock_addr *src,
1116 uint32_t seq, uint32_t ack, int rst);
1118 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1119 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1122 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1123 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1124 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1125 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1127 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1129 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1130 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1131 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1132 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1133 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1134 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1135 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1137 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1138 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1139 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1140 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1141 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1142 TALLOC_CTX *mem_ctx,
1143 void (*callback)(struct ctdb_context *, int, void *),
1146 enum ctdb_eventscript_call call,
1147 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1148 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1150 void set_nonblocking(int fd);
1151 void set_close_on_exec(int fd);
1153 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1155 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1157 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1159 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1160 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1161 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1162 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1163 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1165 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1167 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1169 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1170 struct timeval timeout,
1172 struct ctdb_tunable *tunables);
1174 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1176 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1177 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1178 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1179 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1182 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1183 int ctdb_sys_close_capture_socket(void *private_data);
1184 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);
1186 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1187 struct timeval timeout,
1189 struct ctdb_control_killtcp *killtcp);
1191 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1192 struct timeval timeout,
1194 struct ctdb_control_ip_iface *pub);
1196 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1197 struct timeval timeout,
1199 struct ctdb_control_ip_iface *pub);
1201 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1202 struct timeval timeout,
1204 ctdb_sock_addr *addr,
1205 const char *ifname);
1207 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1208 struct timeval timeout,
1210 TALLOC_CTX *mem_ctx,
1211 ctdb_sock_addr *addr,
1212 struct ctdb_control_tcp_tickle_list **list);
1215 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1218 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1220 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1222 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1224 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1227 int ctdb_attach_databases(struct ctdb_context *ctdb);
1229 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1230 struct ctdb_req_control *c,
1231 TDB_DATA recdata, bool *async_reply);
1232 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1233 struct ctdb_req_control *c, TDB_DATA recdata,
1235 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1236 struct ctdb_req_control *c,
1237 TDB_DATA recdata, bool *async_reply);
1239 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1240 struct ctdb_req_control *c,
1241 TDB_DATA recdata, bool *async_reply);
1243 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1245 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1246 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1247 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1248 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1249 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1250 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1255 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1256 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1258 void ctdb_block_signal(int signum);
1259 void ctdb_unblock_signal(int signum);
1260 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1261 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1262 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1264 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1266 struct client_async_data {
1267 enum ctdb_controls opcode;
1268 bool dont_log_errors;
1270 uint32_t fail_count;
1271 client_async_callback callback;
1272 client_async_callback fail_callback;
1273 void *callback_data;
1275 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1276 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1277 int ctdb_client_async_control(struct ctdb_context *ctdb,
1278 enum ctdb_controls opcode,
1281 struct timeval timeout,
1282 bool dont_log_errors,
1284 client_async_callback client_callback,
1285 client_async_callback fail_callback,
1286 void *callback_data);
1288 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1290 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1292 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1293 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1295 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1296 struct ctdb_req_control *c);
1297 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1298 struct ctdb_req_control *c);
1299 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1300 struct ctdb_req_control *c,
1303 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1304 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1305 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1307 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1308 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1310 extern int script_log_level;
1311 extern bool fast_start;
1313 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1317 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1318 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1320 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1321 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1323 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1324 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1326 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1327 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1329 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1330 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1331 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1332 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1333 void ctdb_ban_self(struct ctdb_context *ctdb);
1335 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1337 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1339 int start_syslog_daemon(struct ctdb_context *ctdb);
1341 /* Where to send the log messages back to */
1342 struct ctdb_get_log_addr {
1348 extern int log_ringbuf_size;
1350 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1351 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1354 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1355 struct ctdb_context *ctdb,
1356 const char *log_prefix,
1357 void (*logfn)(const char *, uint16_t, void *),
1358 void *logfn_private, pid_t *pid);
1360 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1361 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1363 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1367 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1368 struct ctdb_db_context *ctdb_db);
1369 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1370 struct ctdb_db_context *ctdb_db,
1371 const char *reason,/* NULL means healthy */
1372 int num_healthy_nodes);
1373 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1375 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1377 void ctdb_fault_setup(void);
1379 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1380 struct ctdb_all_public_ips *ips);
1381 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1382 struct ctdb_public_ip *ip);
1384 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1386 int ctdb_statistics_init(struct ctdb_context *ctdb);
1388 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1389 struct ctdb_req_control *c,
1392 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1394 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1397 * structure to pass to a schedule_for_deletion_control
1399 struct ctdb_control_schedule_for_deletion {
1401 struct ctdb_ltdb_header hdr;
1403 uint8_t key[1]; /* key[] */
1406 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1410 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1411 const struct ctdb_ltdb_header *hdr,
1414 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1416 /* For unit testing ctdb_transaction.c. */
1417 struct ctdb_public_ip_list {
1418 struct ctdb_public_ip_list *next;
1420 ctdb_sock_addr addr;
1422 uint32_t ip_distance(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2);
1423 uint32_t ip_distance_2_sum(ctdb_sock_addr *ip,
1424 struct ctdb_public_ip_list *ips,
1426 uint32_t lcp2_imbalance(struct ctdb_public_ip_list * all_ips, int pnn);
1427 void lcp2_init(struct ctdb_context * tmp_ctx,
1428 struct ctdb_node_map * nodemap,
1430 struct ctdb_public_ip_list *all_ips,
1431 uint32_t **lcp2_imbalances,
1432 bool **newly_healthy);
1433 void lcp2_allocate_unassigned(struct ctdb_context *ctdb,
1434 struct ctdb_node_map *nodemap,
1436 struct ctdb_public_ip_list *all_ips,
1437 uint32_t *lcp2_imbalances);
1438 bool lcp2_failback(struct ctdb_context *ctdb,
1439 struct ctdb_node_map *nodemap,
1441 struct ctdb_public_ip_list *all_ips,
1442 uint32_t *lcp2_imbalances,
1443 bool *newly_healthy);
1444 void ctdb_takeover_run_core(struct ctdb_context *ctdb,
1445 struct ctdb_node_map *nodemap,
1446 struct ctdb_public_ip_list **all_ips_p);