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;
124 an installed ctdb remote call
126 struct ctdb_registered_call {
127 struct ctdb_registered_call *next, *prev;
133 this address structure might need to be generalised later for some
136 struct ctdb_address {
142 check that a pnn is valid
144 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
147 /* called from the queue code when a packet comes in. Called with data==NULL
149 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
152 /* used for callbacks in ctdb_control requests */
153 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
154 int32_t status, TDB_DATA data,
155 const char *errormsg,
158 structure describing a connected client in the daemon
161 struct ctdb_context *ctdb;
163 struct ctdb_queue *queue;
166 struct ctdb_tcp_list *tcp_list;
168 uint32_t num_persistent_updates;
169 struct ctdb_client_notify_list *notify;
174 /* state associated with a public ip address */
176 struct ctdb_vnn *prev, *next;
178 struct ctdb_iface *iface;
180 ctdb_sock_addr public_address;
181 uint8_t public_netmask_bits;
183 /* the node number that is serving this public address, if any.
184 If no node serves this ip it is set to -1 */
187 /* List of clients to tickle for this public address */
188 struct ctdb_tcp_array *tcp_array;
190 /* whether we need to update the other nodes with changes to our list
191 of connected clients */
192 bool tcp_update_needed;
194 /* a context to hang sending gratious arp events off */
195 TALLOC_CTX *takeover_ctx;
197 struct ctdb_kill_tcp *killtcp;
201 state associated with one node
204 struct ctdb_context *ctdb;
205 struct ctdb_address address;
206 const char *name; /* for debug messages */
207 void *private_data; /* private to transport */
211 /* used by the dead node monitoring */
216 /* used to track node capabilities, is only valid/tracked inside the
219 uint32_t capabilities;
221 /* a list of controls pending to this node, so we can time them out quickly
222 if the node becomes disconnected */
223 struct daemon_control_state *pending_controls;
225 /* used by the recovery daemon when distributing ip addresses
226 across the nodes. it needs to know which public ip's can be handled
229 struct ctdb_all_public_ips *known_public_ips;
230 struct ctdb_all_public_ips *available_public_ips;
231 /* used by the recovery dameon to track when a node should be banned */
232 struct ctdb_banning_state *ban_state;
236 transport specific methods
238 struct ctdb_methods {
239 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
240 int (*start)(struct ctdb_context *); /* start the transport */
241 int (*add_node)(struct ctdb_node *); /* setup a new node */
242 int (*connect_node)(struct ctdb_node *); /* connect to node */
243 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
244 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
245 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
246 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
250 transport calls up to the ctdb layer
252 struct ctdb_upcalls {
253 /* recv_pkt is called when a packet comes in */
254 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
256 /* node_dead is called when an attempt to send to a node fails */
257 void (*node_dead)(struct ctdb_node *);
259 /* node_connected is called when a connection to a node is established */
260 void (*node_connected)(struct ctdb_node *);
263 /* list of message handlers - needs to be changed to a more efficient data
264 structure so we can find a message handler given a srvid quickly */
265 struct ctdb_message_list {
266 struct ctdb_context *ctdb;
267 struct ctdb_message_list *next, *prev;
269 ctdb_msg_fn_t message_handler;
270 void *message_private;
273 /* additional data required for the daemon mode */
274 struct ctdb_daemon_data {
277 struct ctdb_queue *queue;
281 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
283 if (value > ctdb->statistics.counter) { \
284 ctdb->statistics.counter = c->hopcount; \
286 if (value > ctdb->statistics_current.counter) { \
287 ctdb->statistics_current.counter = c->hopcount; \
291 #define CTDB_INCREMENT_STAT(ctdb, counter) \
293 ctdb->statistics.counter++; \
294 ctdb->statistics_current.counter++; \
297 #define CTDB_DECREMENT_STAT(ctdb, counter) \
299 if (ctdb->statistics.counter > 0) \
300 ctdb->statistics.counter--; \
301 if (ctdb->statistics_current.counter > 0) \
302 ctdb->statistics_current.counter--; \
305 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
307 if (value > ctdb->statistics.counter.max) \
308 ctdb->statistics.counter.max = value; \
309 if (value > ctdb->statistics_current.counter.max) \
310 ctdb->statistics_current.counter.max = value; \
312 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
313 ctdb->statistics.counter.min = value; \
314 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
315 ctdb->statistics_current.counter.min = value; \
317 ctdb->statistics.counter.total += value; \
318 ctdb->statistics_current.counter.total += value; \
320 ctdb->statistics.counter.num++; \
321 ctdb->statistics_current.counter.num++; \
323 if (ctdb->tunable.reclock_latency_ms != 0) { \
324 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
325 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
331 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
333 double l = timeval_elapsed(&t); \
335 if (l > ctdb->statistics.counter.max) \
336 ctdb->statistics.counter.max = l; \
337 if (l > ctdb->statistics_current.counter.max) \
338 ctdb->statistics_current.counter.max = l; \
340 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
341 ctdb->statistics.counter.min = l; \
342 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
343 ctdb->statistics_current.counter.min = l; \
345 ctdb->statistics.counter.total += l; \
346 ctdb->statistics_current.counter.total += l; \
348 ctdb->statistics.counter.num++; \
349 ctdb->statistics_current.counter.num++; \
351 if (ctdb->tunable.log_latency_ms !=0) { \
352 if (l*1000 > ctdb->tunable.log_latency_ms) { \
353 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
362 #define INVALID_GENERATION 1
363 /* table that contains the mapping between a hash value and lmaster
365 struct ctdb_vnn_map {
372 a wire representation of the vnn map
374 struct ctdb_vnn_map_wire {
380 /* a structure that contains the elements required for the write record
383 struct ctdb_write_record {
387 unsigned char blob[1];
390 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
392 #define CTDB_MONITORING_ACTIVE 0
393 #define CTDB_MONITORING_DISABLED 1
395 /* The different capabilities of the ctdb daemon. */
396 #define CTDB_CAP_RECMASTER 0x00000001
397 #define CTDB_CAP_LMASTER 0x00000002
398 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
399 #define CTDB_CAP_LVS 0x00000004
400 /* This capability is set if NATGW is enabled */
401 #define CTDB_CAP_NATGW 0x00000008
403 #define NUM_DB_PRIORITIES 3
404 /* main state of the ctdb daemon */
405 struct ctdb_context {
406 struct tevent_context *ev;
407 struct timeval ctdbd_start_time;
408 struct timeval last_recovery_started;
409 struct timeval last_recovery_finished;
410 uint32_t recovery_mode;
411 TALLOC_CTX *tickle_update_context;
412 TALLOC_CTX *keepalive_ctx;
413 struct ctdb_tunable tunable;
414 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
415 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
416 bool freeze_transaction_started;
417 uint32_t freeze_transaction_id;
418 struct ctdb_address address;
420 const char *db_directory;
421 const char *db_directory_persistent;
422 const char *db_directory_state;
423 struct tdb_wrap *db_persistent_health;
424 uint32_t db_persistent_startup_generation;
425 uint64_t db_persistent_check_errors;
426 uint64_t max_persistent_check_errors;
427 const char *transport;
428 char *recovery_lock_file;
429 int recovery_lock_fd;
430 uint32_t pnn; /* our own pnn */
432 uint32_t num_connected;
434 uint32_t capabilities;
435 struct idr_context *idr;
437 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
438 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
439 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
440 struct ctdb_iface *ifaces; /* list of local interfaces */
442 const struct ctdb_methods *methods; /* transport methods */
443 const struct ctdb_upcalls *upcalls; /* transport upcalls */
444 void *private_data; /* private to transport */
445 struct ctdb_db_context *db_list;
446 struct ctdb_message_list *message_list;
447 struct ctdb_daemon_data daemon;
448 struct ctdb_statistics statistics;
449 struct ctdb_statistics statistics_current;
450 #define MAX_STAT_HISTORY 100
451 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
452 struct ctdb_vnn_map *vnn_map;
453 uint32_t num_clients;
454 uint32_t recovery_master;
455 struct ctdb_call_state *pending_calls;
456 struct ctdb_client_ip *client_ip_list;
457 struct trbt_tree *server_ids;
458 const char *event_script_dir;
459 const char *notification_script;
460 const char *default_public_interface;
466 struct ctdb_monitor_state *monitor;
467 struct ctdb_log_state *log;
468 int start_as_disabled;
469 int start_as_stopped;
471 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
472 uint32_t *recd_ping_count;
473 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
475 TALLOC_CTX *event_script_ctx;
477 struct ctdb_event_script_state *current_monitor;
478 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
480 TALLOC_CTX *banning_ctx;
482 struct ctdb_vacuum_child_context *vacuumers;
484 /* mapping from pid to ctdb_client * */
485 struct ctdb_client_pid_list *client_pids;
487 /* used in the recovery daemon to remember the ip allocation */
488 struct trbt_tree *ip_tree;
491 struct ctdb_db_context {
492 struct ctdb_db_context *next, *prev;
493 struct ctdb_context *ctdb;
499 struct tdb_wrap *ltdb;
500 struct ctdb_registered_call *calls; /* list of registered calls */
502 struct timed_event *seqnum_update;
503 struct ctdb_traverse_local_handle *traverse;
504 bool transaction_active;
505 struct ctdb_vacuum_handle *vacuum_handle;
506 char *unhealthy_reason;
510 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
511 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
512 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
513 return -1; }} while (0)
515 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
516 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
517 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
520 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
521 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
522 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
523 return NULL; }} while (0)
525 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
526 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
527 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
531 structure passed in set_call control
533 struct ctdb_control_set_call {
540 struct for kill_tcp control
542 struct ctdb_control_killtcp {
543 ctdb_sock_addr src_addr;
544 ctdb_sock_addr dst_addr;
548 struct holding a ctdb_sock_addr and an interface name,
549 used to add/remove public addresses
551 struct ctdb_control_ip_iface {
559 struct holding a ctdb_sock_addr and an interface name,
560 used for send_gratious_arp
562 struct ctdb_control_gratious_arp {
570 persistent store control - update this record on all other nodes
572 struct ctdb_control_persistent_store {
579 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
581 struct ctdb_node_flag_change {
588 struct for admin setting a ban
590 struct ctdb_ban_info {
595 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
597 #define CTDB_LMASTER_ANY 0xffffffff
600 state of a in-progress ctdb call
602 struct ctdb_call_state {
603 struct ctdb_call_state *next, *prev;
604 enum call_state state;
606 struct ctdb_req_call *c;
607 struct ctdb_db_context *ctdb_db;
609 struct ctdb_call *call;
612 void (*fn)(struct ctdb_call_state *);
618 /* used for fetch_lock */
619 struct ctdb_fetch_handle {
620 struct ctdb_db_context *ctdb_db;
623 struct ctdb_ltdb_header header;
626 /* internal prototypes */
627 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
628 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
629 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
630 int ctdb_parse_address(struct ctdb_context *ctdb,
631 TALLOC_CTX *mem_ctx, const char *str,
632 struct ctdb_address *address);
633 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
634 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
635 uint32_t ctdb_hash(const TDB_DATA *key);
636 uint32_t ctdb_hash_string(const char *str);
637 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
638 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
639 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
640 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
641 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
642 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
644 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
645 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
646 TDB_DATA key, struct ctdb_ltdb_header *header,
647 TALLOC_CTX *mem_ctx, TDB_DATA *data);
648 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
649 struct ctdb_ltdb_header *header, TDB_DATA data);
650 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
651 struct ctdb_req_control *c,
653 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
654 struct ctdb_req_control *c,
656 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
657 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
658 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
659 TDB_DATA key, struct ctdb_req_header *hdr,
660 void (*recv_pkt)(void *, struct ctdb_req_header *),
661 void *recv_context, bool ignore_generation);
662 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
663 TDB_DATA key, struct ctdb_ltdb_header *header,
664 struct ctdb_req_header *hdr, TDB_DATA *data,
665 void (*recv_pkt)(void *, struct ctdb_req_header *),
666 void *recv_context, bool ignore_generation);
667 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
669 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
670 struct ctdb_call *call,
671 struct ctdb_ltdb_header *header,
675 int ctdbd_start(struct ctdb_context *ctdb);
676 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
677 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
680 queue a packet for sending
682 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
685 setup the fd used by the queue
687 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
690 setup a packet queue on a socket
692 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
693 TALLOC_CTX *mem_ctx, int fd, int alignment,
695 ctdb_queue_cb_fn_t callback,
696 void *private_data, const char *fmt, ...)
697 PRINTF_ATTRIBUTE(7,8);
700 allocate a packet for use in client<->daemon communication
702 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
704 enum ctdb_operation operation,
705 size_t length, size_t slength,
707 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
708 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
710 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
712 enum ctdb_operation operation,
713 size_t length, size_t slength,
715 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
716 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
718 int ctdb_queue_length(struct ctdb_queue *queue);
721 lock a record in the ltdb, given a key
723 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
726 unlock a record in the ltdb, given a key
728 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
732 make a ctdb call to the local daemon - async send. Called from client context.
734 This constructs a ctdb_call request and queues it for processing.
735 This call never blocks.
737 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
738 struct ctdb_call *call);
741 make a recv call to the local ctdb daemon - called from client context
743 This is called when the program wants to wait for a ctdb_call to complete and get the
744 results. This call will block unless the call has already completed.
746 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
748 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
749 uint64_t srvid, TDB_DATA data);
754 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
755 uint64_t srvid, TDB_DATA data);
758 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
760 void (*callback)(void *), void *private_data);
762 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
763 struct ctdb_call *call);
765 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
767 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
768 struct ctdb_call *call,
769 struct ctdb_ltdb_header *header);
771 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
772 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
775 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
777 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
779 int ctdb_socket_connect(struct ctdb_context *ctdb);
781 #define CTDB_BAD_REQID ((uint32_t)-1)
782 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
783 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
784 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
786 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
787 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
789 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
790 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
792 ctdb_control_callback_fn_t callback,
795 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
796 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
798 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
799 ctdb_fn_t fn, int id);
801 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
802 uint32_t opcode, uint32_t flags, TDB_DATA data,
803 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
804 struct timeval *timeout, char **errormsg);
805 int ctdb_control_recv(struct ctdb_context *ctdb,
806 struct ctdb_client_control_state *state,
808 TDB_DATA *outdata, int32_t *status, char **errormsg);
810 struct ctdb_client_control_state *
811 ctdb_control_send(struct ctdb_context *ctdb,
812 uint32_t destnode, uint64_t srvid,
813 uint32_t opcode, uint32_t flags, TDB_DATA data,
815 struct timeval *timeout,
821 #define CHECK_CONTROL_DATA_SIZE(size) do { \
822 if (indata.dsize != size) { \
823 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
824 opcode, (unsigned)indata.dsize, (unsigned)size)); \
829 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
830 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
831 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
832 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
833 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
834 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
837 struct ctdb_traverse_start {
844 structure used to pass record data between the child and parent
846 struct ctdb_rec_data {
855 /* structure used for pulldb control */
856 struct ctdb_control_pulldb {
861 /* structure used for sending lists of records */
862 struct ctdb_marshall_buffer {
868 /* set dmaster control structure */
869 struct ctdb_control_set_dmaster {
875 structure for setting a tunable
877 struct ctdb_control_set_tunable {
884 structure for getting a tunable
886 struct ctdb_control_get_tunable {
892 structure for listing tunables
894 struct ctdb_control_list_tunable {
896 /* returns a : separated list of tunable names */
901 struct ctdb_node_and_flagsv4 {
904 struct sockaddr_in sin;
907 struct ctdb_node_mapv4 {
909 struct ctdb_node_and_flagsv4 nodes[1];
912 struct ctdb_control_wipe_database {
914 uint32_t transaction_id;
918 state of a in-progress ctdb call in client
920 struct ctdb_client_call_state {
921 enum call_state state;
923 struct ctdb_db_context *ctdb_db;
924 struct ctdb_call *call;
926 void (*fn)(struct ctdb_client_call_state *);
932 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
933 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
934 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
935 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
936 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
937 TDB_DATA *outdata, uint32_t srcnode);
939 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
941 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
942 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
943 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
945 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
946 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
948 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
949 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
951 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
953 struct ctdb_ltdb_header *header,
954 TDB_DATA *key, TDB_DATA *data);
956 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
957 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
958 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
960 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
961 struct ctdb_req_control *c,
962 TDB_DATA indata, bool *async_reply,
963 const char **errormsg);
964 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
965 TDB_DATA *outdata, int32_t status, const char *errormsg);
967 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
968 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
970 int ctdb_start_recoverd(struct ctdb_context *ctdb);
971 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
973 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
975 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
976 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
977 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
978 void ctdb_start_monitoring(struct ctdb_context *ctdb);
979 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
980 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
981 void ctdb_start_keepalive(struct ctdb_context *ctdb);
982 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
983 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
986 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
987 void ctdb_call_resend_all(struct ctdb_context *ctdb);
988 void ctdb_node_dead(struct ctdb_node *node);
989 void ctdb_node_connected(struct ctdb_node *node);
990 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
991 void ctdb_high_priority(struct ctdb_context *ctdb);
992 void ctdb_reduce_priority(struct ctdb_context *ctdb);
993 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
994 struct ctdb_req_control *c,
997 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
998 struct ctdb_req_control *c,
1001 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1002 struct ctdb_req_control *c,
1005 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1006 struct ctdb_req_control *c,
1009 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1010 struct ctdb_req_control *c,
1012 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1013 struct ctdb_req_control *c,
1016 struct ctdb_public_ipv4 {
1018 struct sockaddr_in sin;
1021 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1022 uint32_t destnode, struct ctdb_public_ip *ip);
1023 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1024 uint32_t destnode, struct ctdb_public_ip *ip);
1026 struct ctdb_all_public_ipsv4 {
1028 struct ctdb_public_ipv4 ips[1];
1031 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1032 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1033 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1034 struct timeval timeout,
1036 TALLOC_CTX *mem_ctx,
1037 struct ctdb_all_public_ips **ips);
1038 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1039 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1040 struct timeval timeout, uint32_t destnode,
1041 TALLOC_CTX *mem_ctx,
1043 struct ctdb_all_public_ips **ips);
1044 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1045 struct timeval timeout, uint32_t destnode,
1046 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1049 #define CTDB_IFACE_SIZE IFNAMSIZ
1051 #define CTDB_IFACE_SIZE 16
1054 struct ctdb_control_iface_info {
1055 char name[CTDB_IFACE_SIZE+2];
1056 uint16_t link_state;
1057 uint32_t references;
1060 struct ctdb_control_public_ip_info {
1061 struct ctdb_public_ip ip;
1062 uint32_t active_idx;
1064 struct ctdb_control_iface_info ifaces[1];
1067 struct ctdb_control_get_ifaces {
1069 struct ctdb_control_iface_info ifaces[1];
1072 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1073 struct ctdb_req_control *c,
1076 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1077 struct ctdb_req_control *c,
1079 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1080 struct ctdb_req_control *c,
1082 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1083 struct timeval timeout, uint32_t destnode,
1084 TALLOC_CTX *mem_ctx,
1085 const ctdb_sock_addr *addr,
1086 struct ctdb_control_public_ip_info **info);
1087 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1088 struct timeval timeout, uint32_t destnode,
1089 TALLOC_CTX *mem_ctx,
1090 struct ctdb_control_get_ifaces **ifaces);
1091 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1092 struct timeval timeout, uint32_t destnode,
1093 TALLOC_CTX *mem_ctx,
1094 const struct ctdb_control_iface_info *info);
1096 /* from takeover/system.c */
1097 uint32_t uint16_checksum(uint16_t *data, size_t n);
1098 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1099 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1100 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1101 const ctdb_sock_addr *src,
1102 uint32_t seq, uint32_t ack, int rst);
1104 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1105 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1108 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1109 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1110 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1111 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1113 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1115 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1116 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1117 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1118 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1119 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1120 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1121 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1123 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1124 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1125 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1126 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1127 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1128 TALLOC_CTX *mem_ctx,
1129 void (*callback)(struct ctdb_context *, int, void *),
1132 enum ctdb_eventscript_call call,
1133 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1134 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1136 void set_nonblocking(int fd);
1137 void set_close_on_exec(int fd);
1139 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1141 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1143 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1145 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1146 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1147 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1148 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1149 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1151 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1153 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1155 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1156 struct timeval timeout,
1158 struct ctdb_tunable *tunables);
1160 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1162 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1163 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1164 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1165 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1168 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1169 int ctdb_sys_close_capture_socket(void *private_data);
1170 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);
1172 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1173 struct timeval timeout,
1175 struct ctdb_control_killtcp *killtcp);
1177 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1178 struct timeval timeout,
1180 struct ctdb_control_ip_iface *pub);
1182 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1183 struct timeval timeout,
1185 struct ctdb_control_ip_iface *pub);
1187 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1188 struct timeval timeout,
1190 ctdb_sock_addr *addr,
1191 const char *ifname);
1193 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1194 struct timeval timeout,
1196 TALLOC_CTX *mem_ctx,
1197 ctdb_sock_addr *addr,
1198 struct ctdb_control_tcp_tickle_list **list);
1201 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1204 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1206 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1208 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1210 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1213 int ctdb_attach_databases(struct ctdb_context *ctdb);
1215 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1216 struct ctdb_req_control *c,
1217 TDB_DATA recdata, bool *async_reply);
1218 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1219 struct ctdb_req_control *c, TDB_DATA recdata,
1221 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1222 struct ctdb_req_control *c,
1223 TDB_DATA recdata, bool *async_reply);
1225 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1226 struct ctdb_req_control *c,
1227 TDB_DATA recdata, bool *async_reply);
1229 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1230 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1231 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1232 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1233 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1234 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1239 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1240 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1242 void ctdb_block_signal(int signum);
1243 void ctdb_unblock_signal(int signum);
1244 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1245 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1246 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1248 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1250 struct client_async_data {
1251 enum ctdb_controls opcode;
1252 bool dont_log_errors;
1254 uint32_t fail_count;
1255 client_async_callback callback;
1256 client_async_callback fail_callback;
1257 void *callback_data;
1259 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1260 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1261 int ctdb_client_async_control(struct ctdb_context *ctdb,
1262 enum ctdb_controls opcode,
1265 struct timeval timeout,
1266 bool dont_log_errors,
1268 client_async_callback client_callback,
1269 client_async_callback fail_callback,
1270 void *callback_data);
1272 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1274 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1276 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1277 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1279 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1280 struct ctdb_req_control *c);
1281 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1282 struct ctdb_req_control *c);
1283 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1284 struct ctdb_req_control *c,
1287 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1288 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1289 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1291 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1292 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1294 extern int script_log_level;
1295 extern bool fast_start;
1297 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1301 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1302 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1304 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1305 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1307 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1308 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1310 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1311 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1313 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1314 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1315 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1316 void ctdb_ban_self(struct ctdb_context *ctdb);
1318 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1320 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1322 int start_syslog_daemon(struct ctdb_context *ctdb);
1324 /* Where to send the log messages back to */
1325 struct ctdb_get_log_addr {
1331 extern int log_ringbuf_size;
1333 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1334 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1337 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1338 struct ctdb_context *ctdb,
1339 void (*logfn)(const char *, uint16_t, void *),
1340 void *logfn_private, pid_t *pid);
1342 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1343 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1345 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1349 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1350 struct ctdb_db_context *ctdb_db);
1351 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1352 struct ctdb_db_context *ctdb_db,
1353 const char *reason,/* NULL means healthy */
1354 int num_healthy_nodes);
1355 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1357 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1359 void ctdb_fault_setup(void);
1361 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1362 struct ctdb_all_public_ips *ips);
1363 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1364 struct ctdb_public_ip *ip);
1366 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1368 int ctdb_statistics_init(struct ctdb_context *ctdb);
1370 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1371 struct ctdb_req_control *c,
1374 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);