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;
127 an installed ctdb remote call
129 struct ctdb_registered_call {
130 struct ctdb_registered_call *next, *prev;
136 this address structure might need to be generalised later for some
139 struct ctdb_address {
145 check that a pnn is valid
147 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
150 /* called from the queue code when a packet comes in. Called with data==NULL
152 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
155 /* used for callbacks in ctdb_control requests */
156 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
157 int32_t status, TDB_DATA data,
158 const char *errormsg,
161 structure describing a connected client in the daemon
164 struct ctdb_context *ctdb;
166 struct ctdb_queue *queue;
169 struct ctdb_tcp_list *tcp_list;
171 uint32_t num_persistent_updates;
172 struct ctdb_client_notify_list *notify;
177 /* state associated with a public ip address */
179 struct ctdb_vnn *prev, *next;
181 struct ctdb_iface *iface;
183 ctdb_sock_addr public_address;
184 uint8_t public_netmask_bits;
186 /* the node number that is serving this public address, if any.
187 If no node serves this ip it is set to -1 */
190 /* List of clients to tickle for this public address */
191 struct ctdb_tcp_array *tcp_array;
193 /* whether we need to update the other nodes with changes to our list
194 of connected clients */
195 bool tcp_update_needed;
197 /* a context to hang sending gratious arp events off */
198 TALLOC_CTX *takeover_ctx;
200 struct ctdb_kill_tcp *killtcp;
204 state associated with one node
207 struct ctdb_context *ctdb;
208 struct ctdb_address address;
209 const char *name; /* for debug messages */
210 void *private_data; /* private to transport */
214 /* used by the dead node monitoring */
219 /* used to track node capabilities, is only valid/tracked inside the
222 uint32_t capabilities;
224 /* a list of controls pending to this node, so we can time them out quickly
225 if the node becomes disconnected */
226 struct daemon_control_state *pending_controls;
228 /* used by the recovery daemon when distributing ip addresses
229 across the nodes. it needs to know which public ip's can be handled
232 struct ctdb_all_public_ips *known_public_ips;
233 struct ctdb_all_public_ips *available_public_ips;
234 /* used by the recovery dameon to track when a node should be banned */
235 struct ctdb_banning_state *ban_state;
239 transport specific methods
241 struct ctdb_methods {
242 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
243 int (*start)(struct ctdb_context *); /* start the transport */
244 int (*add_node)(struct ctdb_node *); /* setup a new node */
245 int (*connect_node)(struct ctdb_node *); /* connect to node */
246 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
247 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
248 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
249 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
253 transport calls up to the ctdb layer
255 struct ctdb_upcalls {
256 /* recv_pkt is called when a packet comes in */
257 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
259 /* node_dead is called when an attempt to send to a node fails */
260 void (*node_dead)(struct ctdb_node *);
262 /* node_connected is called when a connection to a node is established */
263 void (*node_connected)(struct ctdb_node *);
266 /* list of message handlers - needs to be changed to a more efficient data
267 structure so we can find a message handler given a srvid quickly */
268 struct ctdb_message_list {
269 struct ctdb_context *ctdb;
270 struct ctdb_message_list *next, *prev;
272 ctdb_msg_fn_t message_handler;
273 void *message_private;
276 /* additional data required for the daemon mode */
277 struct ctdb_daemon_data {
280 struct ctdb_queue *queue;
284 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
286 if (value > ctdb->statistics.counter) { \
287 ctdb->statistics.counter = c->hopcount; \
289 if (value > ctdb->statistics_current.counter) { \
290 ctdb->statistics_current.counter = c->hopcount; \
294 #define CTDB_INCREMENT_STAT(ctdb, counter) \
296 ctdb->statistics.counter++; \
297 ctdb->statistics_current.counter++; \
300 #define CTDB_DECREMENT_STAT(ctdb, counter) \
302 if (ctdb->statistics.counter > 0) \
303 ctdb->statistics.counter--; \
304 if (ctdb->statistics_current.counter > 0) \
305 ctdb->statistics_current.counter--; \
308 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
310 if (value > ctdb->statistics.counter.max) \
311 ctdb->statistics.counter.max = value; \
312 if (value > ctdb->statistics_current.counter.max) \
313 ctdb->statistics_current.counter.max = value; \
315 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
316 ctdb->statistics.counter.min = value; \
317 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
318 ctdb->statistics_current.counter.min = value; \
320 ctdb->statistics.counter.total += value; \
321 ctdb->statistics_current.counter.total += value; \
323 ctdb->statistics.counter.num++; \
324 ctdb->statistics_current.counter.num++; \
326 if (ctdb->tunable.reclock_latency_ms != 0) { \
327 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
328 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
334 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
336 double l = timeval_elapsed(&t); \
338 if (l > ctdb->statistics.counter.max) \
339 ctdb->statistics.counter.max = l; \
340 if (l > ctdb->statistics_current.counter.max) \
341 ctdb->statistics_current.counter.max = l; \
343 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
344 ctdb->statistics.counter.min = l; \
345 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
346 ctdb->statistics_current.counter.min = l; \
348 ctdb->statistics.counter.total += l; \
349 ctdb->statistics_current.counter.total += l; \
351 ctdb->statistics.counter.num++; \
352 ctdb->statistics_current.counter.num++; \
354 if (ctdb->tunable.log_latency_ms !=0) { \
355 if (l*1000 > ctdb->tunable.log_latency_ms) { \
356 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
365 #define INVALID_GENERATION 1
366 /* table that contains the mapping between a hash value and lmaster
368 struct ctdb_vnn_map {
375 a wire representation of the vnn map
377 struct ctdb_vnn_map_wire {
383 /* a structure that contains the elements required for the write record
386 struct ctdb_write_record {
390 unsigned char blob[1];
393 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
395 #define CTDB_MONITORING_ACTIVE 0
396 #define CTDB_MONITORING_DISABLED 1
398 /* The different capabilities of the ctdb daemon. */
399 #define CTDB_CAP_RECMASTER 0x00000001
400 #define CTDB_CAP_LMASTER 0x00000002
401 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
402 #define CTDB_CAP_LVS 0x00000004
403 /* This capability is set if NATGW is enabled */
404 #define CTDB_CAP_NATGW 0x00000008
406 #define NUM_DB_PRIORITIES 3
407 /* main state of the ctdb daemon */
408 struct ctdb_context {
409 struct tevent_context *ev;
410 struct timeval ctdbd_start_time;
411 struct timeval last_recovery_started;
412 struct timeval last_recovery_finished;
413 uint32_t recovery_mode;
414 TALLOC_CTX *tickle_update_context;
415 TALLOC_CTX *keepalive_ctx;
416 struct ctdb_tunable tunable;
417 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
418 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
419 bool freeze_transaction_started;
420 uint32_t freeze_transaction_id;
421 struct ctdb_address address;
423 const char *db_directory;
424 const char *db_directory_persistent;
425 const char *db_directory_state;
426 struct tdb_wrap *db_persistent_health;
427 uint32_t db_persistent_startup_generation;
428 uint64_t db_persistent_check_errors;
429 uint64_t max_persistent_check_errors;
430 const char *transport;
431 char *recovery_lock_file;
432 int recovery_lock_fd;
433 uint32_t pnn; /* our own pnn */
435 uint32_t num_connected;
437 uint32_t capabilities;
438 struct idr_context *idr;
440 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
441 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
442 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
443 struct ctdb_iface *ifaces; /* list of local interfaces */
445 const struct ctdb_methods *methods; /* transport methods */
446 const struct ctdb_upcalls *upcalls; /* transport upcalls */
447 void *private_data; /* private to transport */
448 struct ctdb_db_context *db_list;
449 struct ctdb_message_list *message_list;
450 struct ctdb_daemon_data daemon;
451 struct ctdb_statistics statistics;
452 struct ctdb_statistics statistics_current;
453 #define MAX_STAT_HISTORY 100
454 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
455 struct ctdb_vnn_map *vnn_map;
456 uint32_t num_clients;
457 uint32_t recovery_master;
458 struct ctdb_call_state *pending_calls;
459 struct ctdb_client_ip *client_ip_list;
460 struct trbt_tree *server_ids;
462 void *saved_scheduler_param;
463 const char *event_script_dir;
464 const char *notification_script;
465 const char *default_public_interface;
471 struct ctdb_monitor_state *monitor;
472 struct ctdb_log_state *log;
473 int start_as_disabled;
474 int start_as_stopped;
476 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
477 uint32_t *recd_ping_count;
478 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
480 TALLOC_CTX *event_script_ctx;
482 struct ctdb_event_script_state *current_monitor;
483 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
485 TALLOC_CTX *banning_ctx;
487 struct ctdb_vacuum_child_context *vacuumers;
489 /* mapping from pid to ctdb_client * */
490 struct ctdb_client_pid_list *client_pids;
492 /* used in the recovery daemon to remember the ip allocation */
493 struct trbt_tree *ip_tree;
495 /* Used to defer db attach requests while in recovery mode */
496 struct ctdb_deferred_attach_context *deferred_attach;
499 struct ctdb_db_context {
500 struct ctdb_db_context *next, *prev;
501 struct ctdb_context *ctdb;
507 struct tdb_wrap *ltdb;
508 struct ctdb_registered_call *calls; /* list of registered calls */
510 struct timed_event *seqnum_update;
511 struct ctdb_traverse_local_handle *traverse;
512 bool transaction_active;
513 struct ctdb_vacuum_handle *vacuum_handle;
514 char *unhealthy_reason;
515 int pending_requests;
516 struct lockwait_handle *lockwait_active;
517 struct lockwait_handle *lockwait_overflow;
518 struct ctdb_persistent_state *persistent_state;
519 struct trbt_tree *delete_queue;
520 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
522 struct ctdb_ltdb_header *header,
528 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
529 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
530 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
531 return -1; }} while (0)
533 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
534 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
535 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
538 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
539 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
540 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
541 return NULL; }} while (0)
543 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
544 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
545 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
549 structure passed in set_call control
551 struct ctdb_control_set_call {
558 struct for kill_tcp control
560 struct ctdb_control_killtcp {
561 ctdb_sock_addr src_addr;
562 ctdb_sock_addr dst_addr;
566 struct holding a ctdb_sock_addr and an interface name,
567 used to add/remove public addresses
569 struct ctdb_control_ip_iface {
577 struct holding a ctdb_sock_addr and an interface name,
578 used for send_gratious_arp
580 struct ctdb_control_gratious_arp {
588 persistent store control - update this record on all other nodes
590 struct ctdb_control_persistent_store {
597 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
599 struct ctdb_node_flag_change {
606 struct for admin setting a ban
608 struct ctdb_ban_info {
613 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
615 #define CTDB_LMASTER_ANY 0xffffffff
618 state of a in-progress ctdb call
620 struct ctdb_call_state {
621 struct ctdb_call_state *next, *prev;
622 enum call_state state;
624 struct ctdb_req_call *c;
625 struct ctdb_db_context *ctdb_db;
627 struct ctdb_call *call;
630 void (*fn)(struct ctdb_call_state *);
636 /* used for fetch_lock */
637 struct ctdb_fetch_handle {
638 struct ctdb_db_context *ctdb_db;
641 struct ctdb_ltdb_header header;
644 /* internal prototypes */
645 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
646 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
647 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
648 int ctdb_parse_address(struct ctdb_context *ctdb,
649 TALLOC_CTX *mem_ctx, const char *str,
650 struct ctdb_address *address);
651 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
652 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
653 uint32_t ctdb_hash(const TDB_DATA *key);
654 uint32_t ctdb_hash_string(const char *str);
655 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
656 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
657 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
658 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
659 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
660 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
662 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
663 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
664 TDB_DATA key, struct ctdb_ltdb_header *header,
665 TALLOC_CTX *mem_ctx, TDB_DATA *data);
666 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
667 struct ctdb_ltdb_header *header, TDB_DATA data);
668 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
669 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
670 struct ctdb_req_control *c,
672 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
673 struct ctdb_req_control *c,
675 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
676 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
677 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
678 TDB_DATA key, struct ctdb_req_header *hdr,
679 void (*recv_pkt)(void *, struct ctdb_req_header *),
680 void *recv_context, bool ignore_generation);
681 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
682 TDB_DATA key, struct ctdb_ltdb_header *header,
683 struct ctdb_req_header *hdr, TDB_DATA *data,
684 void (*recv_pkt)(void *, struct ctdb_req_header *),
685 void *recv_context, bool ignore_generation);
686 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
688 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
689 struct ctdb_call *call,
690 struct ctdb_ltdb_header *header,
694 int ctdbd_start(struct ctdb_context *ctdb);
695 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
696 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
699 queue a packet for sending
701 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
704 setup the fd used by the queue
706 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
709 setup a packet queue on a socket
711 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
712 TALLOC_CTX *mem_ctx, int fd, int alignment,
714 ctdb_queue_cb_fn_t callback,
715 void *private_data, const char *fmt, ...)
716 PRINTF_ATTRIBUTE(7,8);
719 allocate a packet for use in client<->daemon communication
721 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
723 enum ctdb_operation operation,
724 size_t length, size_t slength,
726 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
727 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
729 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
731 enum ctdb_operation operation,
732 size_t length, size_t slength,
734 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
735 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
737 int ctdb_queue_length(struct ctdb_queue *queue);
740 lock a record in the ltdb, given a key
742 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
745 unlock a record in the ltdb, given a key
747 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
751 make a ctdb call to the local daemon - async send. Called from client context.
753 This constructs a ctdb_call request and queues it for processing.
754 This call never blocks.
756 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
757 struct ctdb_call *call);
760 make a recv call to the local ctdb daemon - called from client context
762 This is called when the program wants to wait for a ctdb_call to complete and get the
763 results. This call will block unless the call has already completed.
765 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
767 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
768 uint64_t srvid, TDB_DATA data);
773 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
774 uint64_t srvid, TDB_DATA data);
777 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
779 void (*callback)(void *), void *private_data);
781 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
782 struct ctdb_call *call);
784 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
786 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
787 struct ctdb_call *call,
788 struct ctdb_ltdb_header *header);
790 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
791 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
794 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
796 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
798 int ctdb_socket_connect(struct ctdb_context *ctdb);
800 #define CTDB_BAD_REQID ((uint32_t)-1)
801 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
802 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
803 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
805 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
806 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
808 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
809 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
811 ctdb_control_callback_fn_t callback,
814 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
815 TDB_DATA *outdata, uint64_t tdb_flags,
816 bool persistent, uint32_t client_id,
817 struct ctdb_req_control *c,
820 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
821 ctdb_fn_t fn, int id);
823 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
824 uint32_t opcode, uint32_t flags, TDB_DATA data,
825 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
826 struct timeval *timeout, char **errormsg);
827 int ctdb_control_recv(struct ctdb_context *ctdb,
828 struct ctdb_client_control_state *state,
830 TDB_DATA *outdata, int32_t *status, char **errormsg);
832 struct ctdb_client_control_state *
833 ctdb_control_send(struct ctdb_context *ctdb,
834 uint32_t destnode, uint64_t srvid,
835 uint32_t opcode, uint32_t flags, TDB_DATA data,
837 struct timeval *timeout,
843 #define CHECK_CONTROL_DATA_SIZE(size) do { \
844 if (indata.dsize != size) { \
845 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
846 opcode, (unsigned)indata.dsize, (unsigned)size)); \
851 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
852 if (indata.dsize < size) { \
853 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
854 opcode, (unsigned)indata.dsize, (unsigned)size)); \
859 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
860 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
861 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
862 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
863 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
864 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
867 /* structure used for pulldb control */
868 struct ctdb_control_pulldb {
873 /* structure used for sending lists of records */
874 struct ctdb_marshall_buffer {
880 /* set dmaster control structure */
881 struct ctdb_control_set_dmaster {
887 structure for setting a tunable
889 struct ctdb_control_set_tunable {
896 structure for getting a tunable
898 struct ctdb_control_get_tunable {
904 structure for listing tunables
906 struct ctdb_control_list_tunable {
908 /* returns a : separated list of tunable names */
913 struct ctdb_node_and_flagsv4 {
916 struct sockaddr_in sin;
919 struct ctdb_node_mapv4 {
921 struct ctdb_node_and_flagsv4 nodes[1];
924 struct ctdb_control_wipe_database {
926 uint32_t transaction_id;
930 state of a in-progress ctdb call in client
932 struct ctdb_client_call_state {
933 enum call_state state;
935 struct ctdb_db_context *ctdb_db;
936 struct ctdb_call *call;
938 void (*fn)(struct ctdb_client_call_state *);
944 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
945 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
946 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
947 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
948 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
949 TDB_DATA *outdata, uint32_t srcnode);
951 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
953 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
954 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
955 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
957 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
958 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
960 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
961 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
963 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
965 struct ctdb_ltdb_header *header,
966 TDB_DATA *key, TDB_DATA *data);
968 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
969 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
970 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
972 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
973 struct ctdb_req_control *c,
974 TDB_DATA indata, bool *async_reply,
975 const char **errormsg);
976 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
977 TDB_DATA *outdata, int32_t status, const char *errormsg);
979 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
980 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
982 int ctdb_start_recoverd(struct ctdb_context *ctdb);
983 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
985 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
987 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
988 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
989 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
990 void ctdb_start_monitoring(struct ctdb_context *ctdb);
991 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
992 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
993 void ctdb_start_keepalive(struct ctdb_context *ctdb);
994 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
995 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
998 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
999 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1000 void ctdb_node_dead(struct ctdb_node *node);
1001 void ctdb_node_connected(struct ctdb_node *node);
1002 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1003 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1004 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1005 pid_t ctdb_fork(struct ctdb_context *ctdb);
1006 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1007 struct ctdb_req_control *c,
1010 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1011 struct ctdb_req_control *c,
1014 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1015 struct ctdb_req_control *c,
1018 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1019 struct ctdb_req_control *c,
1022 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1023 struct ctdb_req_control *c,
1025 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1026 struct ctdb_req_control *c,
1029 struct ctdb_public_ipv4 {
1031 struct sockaddr_in sin;
1034 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1035 uint32_t destnode, struct ctdb_public_ip *ip);
1036 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1037 uint32_t destnode, struct ctdb_public_ip *ip);
1039 struct ctdb_all_public_ipsv4 {
1041 struct ctdb_public_ipv4 ips[1];
1044 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1045 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1046 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1047 struct timeval timeout,
1049 TALLOC_CTX *mem_ctx,
1050 struct ctdb_all_public_ips **ips);
1051 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1052 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1053 struct timeval timeout, uint32_t destnode,
1054 TALLOC_CTX *mem_ctx,
1056 struct ctdb_all_public_ips **ips);
1057 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1058 struct timeval timeout, uint32_t destnode,
1059 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1062 #define CTDB_IFACE_SIZE IFNAMSIZ
1064 #define CTDB_IFACE_SIZE 16
1067 struct ctdb_control_iface_info {
1068 char name[CTDB_IFACE_SIZE+2];
1069 uint16_t link_state;
1070 uint32_t references;
1073 struct ctdb_control_public_ip_info {
1074 struct ctdb_public_ip ip;
1075 uint32_t active_idx;
1077 struct ctdb_control_iface_info ifaces[1];
1080 struct ctdb_control_get_ifaces {
1082 struct ctdb_control_iface_info ifaces[1];
1085 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1086 struct ctdb_req_control *c,
1089 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1090 struct ctdb_req_control *c,
1092 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1093 struct ctdb_req_control *c,
1095 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1096 struct timeval timeout, uint32_t destnode,
1097 TALLOC_CTX *mem_ctx,
1098 const ctdb_sock_addr *addr,
1099 struct ctdb_control_public_ip_info **info);
1100 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1101 struct timeval timeout, uint32_t destnode,
1102 TALLOC_CTX *mem_ctx,
1103 struct ctdb_control_get_ifaces **ifaces);
1104 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1105 struct timeval timeout, uint32_t destnode,
1106 TALLOC_CTX *mem_ctx,
1107 const struct ctdb_control_iface_info *info);
1109 /* from takeover/system.c */
1110 uint32_t uint16_checksum(uint16_t *data, size_t n);
1111 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1112 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1113 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1114 const ctdb_sock_addr *src,
1115 uint32_t seq, uint32_t ack, int rst);
1117 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1118 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1121 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1122 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1123 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1124 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1126 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1128 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1129 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1130 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1131 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1132 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1133 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1134 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1136 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1137 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1138 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1139 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1140 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1141 TALLOC_CTX *mem_ctx,
1142 void (*callback)(struct ctdb_context *, int, void *),
1145 enum ctdb_eventscript_call call,
1146 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1147 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1149 void set_nonblocking(int fd);
1150 void set_close_on_exec(int fd);
1152 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1154 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1156 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1158 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1159 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1160 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1161 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1162 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1164 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1166 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1168 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1169 struct timeval timeout,
1171 struct ctdb_tunable *tunables);
1173 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1175 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1176 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1177 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1178 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1181 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1182 int ctdb_sys_close_capture_socket(void *private_data);
1183 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);
1185 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1186 struct timeval timeout,
1188 struct ctdb_control_killtcp *killtcp);
1190 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1191 struct timeval timeout,
1193 struct ctdb_control_ip_iface *pub);
1195 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1196 struct timeval timeout,
1198 struct ctdb_control_ip_iface *pub);
1200 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1201 struct timeval timeout,
1203 ctdb_sock_addr *addr,
1204 const char *ifname);
1206 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1207 struct timeval timeout,
1209 TALLOC_CTX *mem_ctx,
1210 ctdb_sock_addr *addr,
1211 struct ctdb_control_tcp_tickle_list **list);
1214 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1217 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1219 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1221 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1223 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1226 int ctdb_attach_databases(struct ctdb_context *ctdb);
1228 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1229 struct ctdb_req_control *c,
1230 TDB_DATA recdata, bool *async_reply);
1231 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1232 struct ctdb_req_control *c, TDB_DATA recdata,
1234 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1235 struct ctdb_req_control *c,
1236 TDB_DATA recdata, bool *async_reply);
1238 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1239 struct ctdb_req_control *c,
1240 TDB_DATA recdata, bool *async_reply);
1242 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1244 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1245 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1246 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1247 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1248 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1249 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1254 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1255 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1257 void ctdb_block_signal(int signum);
1258 void ctdb_unblock_signal(int signum);
1259 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1260 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1261 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1263 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1265 struct client_async_data {
1266 enum ctdb_controls opcode;
1267 bool dont_log_errors;
1269 uint32_t fail_count;
1270 client_async_callback callback;
1271 client_async_callback fail_callback;
1272 void *callback_data;
1274 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1275 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1276 int ctdb_client_async_control(struct ctdb_context *ctdb,
1277 enum ctdb_controls opcode,
1280 struct timeval timeout,
1281 bool dont_log_errors,
1283 client_async_callback client_callback,
1284 client_async_callback fail_callback,
1285 void *callback_data);
1287 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1289 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1291 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1292 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1294 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1295 struct ctdb_req_control *c);
1296 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1297 struct ctdb_req_control *c);
1298 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1299 struct ctdb_req_control *c,
1302 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1303 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1304 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1306 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1307 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1309 extern int script_log_level;
1310 extern bool fast_start;
1312 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1316 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1317 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1319 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1320 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1322 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1323 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1325 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1326 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1328 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1329 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1330 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1331 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1332 void ctdb_ban_self(struct ctdb_context *ctdb);
1334 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1336 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1338 int start_syslog_daemon(struct ctdb_context *ctdb);
1340 /* Where to send the log messages back to */
1341 struct ctdb_get_log_addr {
1347 extern int log_ringbuf_size;
1349 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1350 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1353 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1354 struct ctdb_context *ctdb,
1355 const char *log_prefix,
1356 void (*logfn)(const char *, uint16_t, void *),
1357 void *logfn_private, pid_t *pid);
1359 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1360 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1362 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1366 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1367 struct ctdb_db_context *ctdb_db);
1368 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1369 struct ctdb_db_context *ctdb_db,
1370 const char *reason,/* NULL means healthy */
1371 int num_healthy_nodes);
1372 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1374 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1376 void ctdb_fault_setup(void);
1378 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1379 struct ctdb_all_public_ips *ips);
1380 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1381 struct ctdb_public_ip *ip);
1383 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1385 int ctdb_statistics_init(struct ctdb_context *ctdb);
1387 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1388 struct ctdb_req_control *c,
1391 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1393 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1396 * structure to pass to a schedule_for_deletion_control
1398 struct ctdb_control_schedule_for_deletion {
1400 struct ctdb_ltdb_header hdr;
1402 uint8_t key[1]; /* key[] */
1405 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1409 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1410 const struct ctdb_ltdb_header *hdr,
1413 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1415 /* For unit testing ctdb_transaction.c. */
1416 struct ctdb_public_ip_list {
1417 struct ctdb_public_ip_list *next;
1419 ctdb_sock_addr addr;
1421 uint32_t ip_distance(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2);
1422 uint32_t ip_distance_2_sum(ctdb_sock_addr *ip,
1423 struct ctdb_public_ip_list *ips,
1425 uint32_t lcp2_imbalance(struct ctdb_public_ip_list * all_ips, int pnn);
1426 void lcp2_init(struct ctdb_context * tmp_ctx,
1427 struct ctdb_node_map * nodemap,
1429 struct ctdb_public_ip_list *all_ips,
1430 uint32_t **lcp2_imbalances,
1431 bool **newly_healthy);
1432 void lcp2_allocate_unassigned(struct ctdb_context *ctdb,
1433 struct ctdb_node_map *nodemap,
1435 struct ctdb_public_ip_list *all_ips,
1436 uint32_t *lcp2_imbalances);
1437 bool lcp2_failback(struct ctdb_context *ctdb,
1438 struct ctdb_node_map *nodemap,
1440 struct ctdb_public_ip_list *all_ips,
1441 uint32_t *lcp2_imbalances,
1442 bool *newly_healthy);
1443 void ctdb_takeover_run_core(struct ctdb_context *ctdb,
1444 struct ctdb_node_map *nodemap,
1445 struct ctdb_public_ip_list **all_ips_p);