4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_interval;
112 uint32_t vacuum_default_interval;
113 uint32_t vacuum_max_run_time;
114 uint32_t repack_limit;
115 uint32_t vacuum_limit;
116 uint32_t vacuum_min_interval;
117 uint32_t vacuum_max_interval;
118 uint32_t max_queue_depth_drop_msg;
119 uint32_t use_status_events_for_monitoring;
120 uint32_t allow_unhealthy_db_read;
121 uint32_t stat_history_interval;
122 uint32_t deferred_attach_timeout;
123 uint32_t vacuum_fast_path_count;
124 uint32_t lcp2_public_ip_assignment;
125 uint32_t allow_client_db_attach;
126 uint32_t recover_pdb_by_seqnum;
127 uint32_t deferred_rebalance_on_node_add;
128 uint32_t fetch_collapse;
129 uint32_t max_lacount;
130 uint32_t hopcount_make_sticky;
131 uint32_t sticky_duration;
132 uint32_t sticky_pindown;
133 uint32_t no_ip_takeover;
134 uint32_t db_record_count_warn;
135 uint32_t db_record_size_warn;
136 uint32_t db_size_warn;
137 uint32_t pulldb_preallocation_size;
138 uint32_t no_ip_takeover_on_disabled;
142 an installed ctdb remote call
144 struct ctdb_registered_call {
145 struct ctdb_registered_call *next, *prev;
151 this address structure might need to be generalised later for some
154 struct ctdb_address {
160 check that a pnn is valid
162 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
165 /* called from the queue code when a packet comes in. Called with data==NULL
167 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
170 /* used for callbacks in ctdb_control requests */
171 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
172 int32_t status, TDB_DATA data,
173 const char *errormsg,
176 structure describing a connected client in the daemon
179 struct ctdb_context *ctdb;
181 struct ctdb_queue *queue;
184 struct ctdb_tcp_list *tcp_list;
186 uint32_t num_persistent_updates;
187 struct ctdb_client_notify_list *notify;
192 /* state associated with a public ip address */
194 struct ctdb_vnn *prev, *next;
196 struct ctdb_iface *iface;
198 ctdb_sock_addr public_address;
199 uint8_t public_netmask_bits;
201 /* the node number that is serving this public address, if any.
202 If no node serves this ip it is set to -1 */
205 /* List of clients to tickle for this public address */
206 struct ctdb_tcp_array *tcp_array;
208 /* whether we need to update the other nodes with changes to our list
209 of connected clients */
210 bool tcp_update_needed;
212 /* a context to hang sending gratious arp events off */
213 TALLOC_CTX *takeover_ctx;
215 struct ctdb_kill_tcp *killtcp;
217 /* Set to true any time an update to this VNN is in flight.
218 This helps to avoid races. */
219 bool update_in_flight;
223 state associated with one node
226 struct ctdb_context *ctdb;
227 struct ctdb_address address;
228 const char *name; /* for debug messages */
229 void *private_data; /* private to transport */
233 /* used by the dead node monitoring */
238 /* used to track node capabilities, is only valid/tracked inside the
241 uint32_t capabilities;
243 /* a list of controls pending to this node, so we can time them out quickly
244 if the node becomes disconnected */
245 struct daemon_control_state *pending_controls;
247 /* used by the recovery daemon when distributing ip addresses
248 across the nodes. it needs to know which public ip's can be handled
251 struct ctdb_all_public_ips *known_public_ips;
252 struct ctdb_all_public_ips *available_public_ips;
253 /* used by the recovery dameon to track when a node should be banned */
254 struct ctdb_banning_state *ban_state;
258 transport specific methods
260 struct ctdb_methods {
261 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
262 int (*start)(struct ctdb_context *); /* start the transport */
263 int (*add_node)(struct ctdb_node *); /* setup a new node */
264 int (*connect_node)(struct ctdb_node *); /* connect to node */
265 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
266 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
267 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
268 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
272 transport calls up to the ctdb layer
274 struct ctdb_upcalls {
275 /* recv_pkt is called when a packet comes in */
276 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
278 /* node_dead is called when an attempt to send to a node fails */
279 void (*node_dead)(struct ctdb_node *);
281 /* node_connected is called when a connection to a node is established */
282 void (*node_connected)(struct ctdb_node *);
285 /* list of message handlers - needs to be changed to a more efficient data
286 structure so we can find a message handler given a srvid quickly */
287 struct ctdb_message_list {
288 struct ctdb_context *ctdb;
289 struct ctdb_message_list *next, *prev;
291 ctdb_msg_fn_t message_handler;
292 void *message_private;
295 /* additional data required for the daemon mode */
296 struct ctdb_daemon_data {
299 struct ctdb_queue *queue;
303 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
305 if (value > ctdb->statistics.counter) { \
306 ctdb->statistics.counter = c->hopcount; \
308 if (value > ctdb->statistics_current.counter) { \
309 ctdb->statistics_current.counter = c->hopcount; \
313 #define CTDB_INCREMENT_STAT(ctdb, counter) \
315 ctdb->statistics.counter++; \
316 ctdb->statistics_current.counter++; \
319 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
321 ctdb_db->statistics.counter++; \
324 #define CTDB_DECREMENT_STAT(ctdb, counter) \
326 if (ctdb->statistics.counter > 0) \
327 ctdb->statistics.counter--; \
328 if (ctdb->statistics_current.counter > 0) \
329 ctdb->statistics_current.counter--; \
332 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
334 if (value > ctdb->statistics.counter.max) \
335 ctdb->statistics.counter.max = value; \
336 if (value > ctdb->statistics_current.counter.max) \
337 ctdb->statistics_current.counter.max = value; \
339 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
340 ctdb->statistics.counter.min = value; \
341 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
342 ctdb->statistics_current.counter.min = value; \
344 ctdb->statistics.counter.total += value; \
345 ctdb->statistics_current.counter.total += value; \
347 ctdb->statistics.counter.num++; \
348 ctdb->statistics_current.counter.num++; \
350 if (ctdb->tunable.reclock_latency_ms != 0) { \
351 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
352 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
358 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
360 double l = timeval_elapsed(&t); \
362 if (l > ctdb->statistics.counter.max) \
363 ctdb->statistics.counter.max = l; \
364 if (l > ctdb->statistics_current.counter.max) \
365 ctdb->statistics_current.counter.max = l; \
367 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
368 ctdb->statistics.counter.min = l; \
369 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
370 ctdb->statistics_current.counter.min = l; \
372 ctdb->statistics.counter.total += l; \
373 ctdb->statistics_current.counter.total += l; \
375 ctdb->statistics.counter.num++; \
376 ctdb->statistics_current.counter.num++; \
378 if (ctdb->tunable.log_latency_ms !=0) { \
379 if (l*1000 > ctdb->tunable.log_latency_ms) { \
380 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
387 /* a structure that contains the elements required for the write record
390 struct ctdb_write_record {
394 unsigned char blob[1];
397 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
399 #define CTDB_MONITORING_ACTIVE 0
400 #define CTDB_MONITORING_DISABLED 1
402 #define NUM_DB_PRIORITIES 3
403 /* main state of the ctdb daemon */
404 struct ctdb_context {
405 struct tevent_context *ev;
406 struct timeval ctdbd_start_time;
407 struct timeval last_recovery_started;
408 struct timeval last_recovery_finished;
409 uint32_t recovery_mode;
410 TALLOC_CTX *tickle_update_context;
411 TALLOC_CTX *keepalive_ctx;
412 TALLOC_CTX *check_public_ifaces_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 bool do_checkpublicip;
458 struct trbt_tree *server_ids;
460 void *saved_scheduler_param;
461 const char *event_script_dir;
462 const char *debug_hung_script;
463 const char *notification_script;
464 const char *default_public_interface;
470 struct ctdb_monitor_state *monitor;
471 struct ctdb_log_state *log;
472 int start_as_disabled;
473 int start_as_stopped;
475 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
476 uint32_t *recd_ping_count;
477 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
479 TALLOC_CTX *event_script_ctx;
481 struct ctdb_event_script_state *current_monitor;
482 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
484 TALLOC_CTX *banning_ctx;
486 struct ctdb_vacuum_child_context *vacuumers;
488 /* mapping from pid to ctdb_client * */
489 struct ctdb_client_pid_list *client_pids;
491 /* used in the recovery daemon to remember the ip allocation */
492 struct trbt_tree *ip_tree;
494 /* Used to defer db attach requests while in recovery mode */
495 struct ctdb_deferred_attach_context *deferred_attach;
497 /* if we are a child process, do we have a domain socket to send controls on */
498 bool can_send_controls;
500 /* list of event script callback functions that are active */
501 struct event_script_callback *script_callbacks;
503 struct ctdb_reloadips_handle *reload_ips;
505 const char *public_addresses_file;
506 struct trbt_tree *child_processes;
507 TALLOC_CTX *debug_hung_script_ctx;
510 struct ctdb_db_context {
511 struct ctdb_db_context *next, *prev;
512 struct ctdb_context *ctdb;
516 bool readonly; /* Do we support read-only delegations ? */
517 bool sticky; /* Do we support sticky records ? */
520 struct tdb_wrap *ltdb;
521 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
522 struct ctdb_registered_call *calls; /* list of registered calls */
524 struct timed_event *seqnum_update;
525 struct ctdb_traverse_local_handle *traverse;
526 bool transaction_active;
527 struct ctdb_vacuum_handle *vacuum_handle;
528 char *unhealthy_reason;
529 int pending_requests;
530 struct lockwait_handle *lockwait_active;
531 struct lockwait_handle *lockwait_overflow;
532 struct revokechild_handle *revokechild_active;
533 struct ctdb_persistent_state *persistent_state;
534 struct trbt_tree *delete_queue;
535 struct trbt_tree *sticky_records;
536 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
538 struct ctdb_ltdb_header *header,
541 /* used to track which records we are currently fetching
542 so we can avoid sending duplicate fetch requests
544 struct trbt_tree *deferred_fetch;
546 struct ctdb_db_statistics statistics;
550 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
551 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
552 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
553 return -1; }} while (0)
555 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
556 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
557 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
560 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
561 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
562 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
563 return NULL; }} while (0)
565 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
566 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
567 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
571 structure passed in set_call control
573 struct ctdb_control_set_call {
580 struct for kill_tcp control
582 struct ctdb_control_killtcp {
583 ctdb_sock_addr src_addr;
584 ctdb_sock_addr dst_addr;
588 struct holding a ctdb_sock_addr and an interface name,
589 used to add/remove public addresses
591 struct ctdb_control_ip_iface {
599 struct holding a ctdb_sock_addr and an interface name,
600 used for send_gratious_arp
602 struct ctdb_control_gratious_arp {
610 persistent store control - update this record on all other nodes
612 struct ctdb_control_persistent_store {
619 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
621 struct ctdb_node_flag_change {
628 struct for admin setting a ban
630 struct ctdb_ban_info {
635 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
637 #define CTDB_LMASTER_ANY 0xffffffff
640 state of a in-progress ctdb call
642 struct ctdb_call_state {
643 struct ctdb_call_state *next, *prev;
644 enum call_state state;
646 struct ctdb_req_call *c;
647 struct ctdb_db_context *ctdb_db;
649 struct ctdb_call *call;
652 void (*fn)(struct ctdb_call_state *);
658 /* used for fetch_lock */
659 struct ctdb_fetch_handle {
660 struct ctdb_db_context *ctdb_db;
663 struct ctdb_ltdb_header header;
666 /* internal prototypes */
667 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
668 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
669 void ctdb_external_trace(void);
670 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
671 int ctdb_parse_address(struct ctdb_context *ctdb,
672 TALLOC_CTX *mem_ctx, const char *str,
673 struct ctdb_address *address);
674 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
675 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
676 uint32_t ctdb_hash(const TDB_DATA *key);
677 uint32_t ctdb_hash_string(const char *str);
678 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
679 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
680 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
681 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
682 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
683 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
685 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
686 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
687 TDB_DATA key, struct ctdb_ltdb_header *header,
688 TALLOC_CTX *mem_ctx, TDB_DATA *data);
689 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
690 struct ctdb_ltdb_header *header, TDB_DATA data);
691 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
692 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
693 TDB_DATA key, struct ctdb_ltdb_header *header,
694 TALLOC_CTX *mem_ctx, TDB_DATA *data);
695 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
696 struct ctdb_req_control *c,
698 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
699 struct ctdb_req_control *c,
701 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
702 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
703 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
704 TDB_DATA key, struct ctdb_req_header *hdr,
705 void (*recv_pkt)(void *, struct ctdb_req_header *),
706 void *recv_context, bool ignore_generation);
707 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
708 TDB_DATA key, struct ctdb_ltdb_header *header,
709 struct ctdb_req_header *hdr, TDB_DATA *data,
710 void (*recv_pkt)(void *, struct ctdb_req_header *),
711 void *recv_context, bool ignore_generation);
712 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
714 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
715 struct ctdb_call *call,
716 struct ctdb_ltdb_header *header,
720 int ctdbd_start(struct ctdb_context *ctdb);
721 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
722 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
725 queue a packet for sending
727 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
730 setup the fd used by the queue
732 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
735 setup a packet queue on a socket
737 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
738 TALLOC_CTX *mem_ctx, int fd, int alignment,
740 ctdb_queue_cb_fn_t callback,
741 void *private_data, const char *fmt, ...)
742 PRINTF_ATTRIBUTE(7,8);
745 allocate a packet for use in client<->daemon communication
747 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
749 enum ctdb_operation operation,
750 size_t length, size_t slength,
752 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
753 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
755 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
757 enum ctdb_operation operation,
758 size_t length, size_t slength,
760 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
761 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
763 int ctdb_queue_length(struct ctdb_queue *queue);
766 lock a record in the ltdb, given a key
768 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
771 unlock a record in the ltdb, given a key
773 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
777 make a ctdb call to the local daemon - async send. Called from client context.
779 This constructs a ctdb_call request and queues it for processing.
780 This call never blocks.
782 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
783 struct ctdb_call *call);
786 make a recv call to the local ctdb daemon - called from client context
788 This is called when the program wants to wait for a ctdb_call to complete and get the
789 results. This call will block unless the call has already completed.
791 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
793 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
794 uint64_t srvid, TDB_DATA data);
799 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
800 uint64_t srvid, TDB_DATA data);
803 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
805 void (*callback)(void *), void *private_data);
807 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
808 struct ctdb_call *call);
810 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
812 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
813 struct ctdb_call *call,
814 struct ctdb_ltdb_header *header);
816 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
817 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
818 TDB_DATA *data, bool updatetdb, uint32_t caller);
820 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
822 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
824 int ctdb_socket_connect(struct ctdb_context *ctdb);
825 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
827 #define CTDB_BAD_REQID ((uint32_t)-1)
828 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
829 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
830 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
832 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
833 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
835 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
836 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
838 ctdb_control_callback_fn_t callback,
841 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
842 TDB_DATA *outdata, uint64_t tdb_flags,
843 bool persistent, uint32_t client_id,
844 struct ctdb_req_control *c,
847 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
848 ctdb_fn_t fn, int id);
850 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
851 uint32_t opcode, uint32_t flags, TDB_DATA data,
852 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
853 struct timeval *timeout, char **errormsg);
854 int ctdb_control_recv(struct ctdb_context *ctdb,
855 struct ctdb_client_control_state *state,
857 TDB_DATA *outdata, int32_t *status, char **errormsg);
859 struct ctdb_client_control_state *
860 ctdb_control_send(struct ctdb_context *ctdb,
861 uint32_t destnode, uint64_t srvid,
862 uint32_t opcode, uint32_t flags, TDB_DATA data,
864 struct timeval *timeout,
870 #define CHECK_CONTROL_DATA_SIZE(size) do { \
871 if (indata.dsize != size) { \
872 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
873 opcode, (unsigned)indata.dsize, (unsigned)size)); \
878 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
879 if (indata.dsize < size) { \
880 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
881 opcode, (unsigned)indata.dsize, (unsigned)size)); \
886 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
887 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
888 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
889 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
890 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
891 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
894 /* structure used for pulldb control */
895 struct ctdb_control_pulldb {
900 /* structure used for sending lists of records */
901 struct ctdb_marshall_buffer {
907 /* set dmaster control structure */
908 struct ctdb_control_set_dmaster {
914 structure for setting a tunable
916 struct ctdb_control_set_tunable {
923 structure for getting a tunable
925 struct ctdb_control_get_tunable {
931 structure for listing tunables
933 struct ctdb_control_list_tunable {
935 /* returns a : separated list of tunable names */
940 struct ctdb_node_and_flagsv4 {
943 struct sockaddr_in sin;
946 struct ctdb_node_mapv4 {
948 struct ctdb_node_and_flagsv4 nodes[1];
951 struct ctdb_control_wipe_database {
953 uint32_t transaction_id;
957 state of a in-progress ctdb call in client
959 struct ctdb_client_call_state {
960 enum call_state state;
962 struct ctdb_db_context *ctdb_db;
963 struct ctdb_call *call;
965 void (*fn)(struct ctdb_client_call_state *);
971 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
976 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
977 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
978 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
979 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
980 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
981 TDB_DATA *outdata, uint32_t srcnode);
983 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
985 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
986 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
987 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
988 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
991 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
992 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
994 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
995 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
997 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
999 struct ctdb_ltdb_header *header,
1000 TDB_DATA *key, TDB_DATA *data);
1002 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1003 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1004 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1006 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1007 struct ctdb_req_control *c,
1008 TDB_DATA indata, bool *async_reply,
1009 const char **errormsg);
1010 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1011 TDB_DATA *outdata, int32_t status, const char *errormsg);
1013 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1014 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1016 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1017 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1019 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1021 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1022 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1023 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1024 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1025 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1026 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1027 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1028 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1029 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1032 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1033 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1034 void ctdb_node_dead(struct ctdb_node *node);
1035 void ctdb_node_connected(struct ctdb_node *node);
1036 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1037 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1038 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1040 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1041 pid_t ctdb_fork(struct ctdb_context *ctdb);
1042 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1044 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1045 struct ctdb_req_control *c,
1048 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1049 struct ctdb_req_control *c,
1052 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1053 struct ctdb_req_control *c,
1056 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1057 struct ctdb_req_control *c,
1060 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1061 struct ctdb_req_control *c,
1063 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1064 struct ctdb_req_control *c,
1067 struct ctdb_public_ipv4 {
1069 struct sockaddr_in sin;
1072 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1073 uint32_t destnode, struct ctdb_public_ip *ip);
1074 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1075 uint32_t destnode, struct ctdb_public_ip *ip);
1077 struct ctdb_all_public_ipsv4 {
1079 struct ctdb_public_ipv4 ips[1];
1082 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1083 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1084 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1085 struct timeval timeout,
1087 TALLOC_CTX *mem_ctx,
1088 struct ctdb_all_public_ips **ips);
1089 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1090 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1091 struct timeval timeout, uint32_t destnode,
1092 TALLOC_CTX *mem_ctx,
1094 struct ctdb_all_public_ips **ips);
1095 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1096 struct timeval timeout, uint32_t destnode,
1097 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1099 struct ctdb_control_iface_info {
1100 char name[CTDB_IFACE_SIZE+2];
1101 uint16_t link_state;
1102 uint32_t references;
1105 struct ctdb_control_public_ip_info {
1106 struct ctdb_public_ip ip;
1107 uint32_t active_idx;
1109 struct ctdb_control_iface_info ifaces[1];
1112 struct ctdb_control_get_ifaces {
1114 struct ctdb_control_iface_info ifaces[1];
1117 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1118 struct ctdb_req_control *c,
1121 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1122 struct ctdb_req_control *c,
1124 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1125 struct ctdb_req_control *c,
1127 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1128 struct timeval timeout, uint32_t destnode,
1129 TALLOC_CTX *mem_ctx,
1130 const ctdb_sock_addr *addr,
1131 struct ctdb_control_public_ip_info **info);
1132 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1133 struct timeval timeout, uint32_t destnode,
1134 TALLOC_CTX *mem_ctx,
1135 struct ctdb_control_get_ifaces **ifaces);
1136 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1137 struct timeval timeout, uint32_t destnode,
1138 TALLOC_CTX *mem_ctx,
1139 const struct ctdb_control_iface_info *info);
1141 /* from takeover/system.c */
1142 uint32_t uint16_checksum(uint16_t *data, size_t n);
1143 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1144 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1145 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1146 bool ctdb_sys_check_iface_exists(const char *iface);
1147 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1148 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1149 const ctdb_sock_addr *src,
1150 uint32_t seq, uint32_t ack, int rst);
1152 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1153 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1156 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1157 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1158 int ctdb_set_debug_hung_script(struct ctdb_context *ctdb, const char *script);
1159 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1160 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1161 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1163 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1165 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1166 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1167 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1168 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1169 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1170 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1171 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1173 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1174 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1175 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1176 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1177 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1178 TALLOC_CTX *mem_ctx,
1179 void (*callback)(struct ctdb_context *, int, void *),
1182 enum ctdb_eventscript_call call,
1183 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1184 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1186 void set_nonblocking(int fd);
1187 void set_close_on_exec(int fd);
1189 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1191 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1193 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1195 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1196 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1197 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1198 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1199 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1201 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1203 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1205 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1206 struct timeval timeout,
1208 struct ctdb_tunable *tunables);
1210 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1212 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1213 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1214 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1215 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1218 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1219 int ctdb_sys_close_capture_socket(void *private_data);
1220 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);
1222 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1223 struct timeval timeout,
1225 struct ctdb_control_killtcp *killtcp);
1227 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1228 struct timeval timeout,
1230 struct ctdb_control_ip_iface *pub);
1232 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1233 struct timeval timeout,
1235 struct ctdb_control_ip_iface *pub);
1237 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1238 struct timeval timeout,
1240 ctdb_sock_addr *addr,
1241 const char *ifname);
1243 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1244 struct timeval timeout,
1246 TALLOC_CTX *mem_ctx,
1247 ctdb_sock_addr *addr,
1248 struct ctdb_control_tcp_tickle_list **list);
1251 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1254 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1256 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1258 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1260 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1263 int ctdb_attach_databases(struct ctdb_context *ctdb);
1265 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1266 struct ctdb_req_control *c,
1267 TDB_DATA recdata, bool *async_reply);
1268 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1269 struct ctdb_req_control *c, TDB_DATA recdata,
1271 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1272 struct ctdb_req_control *c,
1273 TDB_DATA recdata, bool *async_reply);
1275 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1276 struct ctdb_req_control *c,
1277 TDB_DATA recdata, bool *async_reply);
1279 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1281 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1282 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1283 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1284 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1285 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1286 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1291 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1292 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1294 void ctdb_block_signal(int signum);
1295 void ctdb_unblock_signal(int signum);
1296 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1297 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1298 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1300 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1302 struct client_async_data {
1303 enum ctdb_controls opcode;
1304 bool dont_log_errors;
1306 uint32_t fail_count;
1307 client_async_callback callback;
1308 client_async_callback fail_callback;
1309 void *callback_data;
1311 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1312 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1313 int ctdb_client_async_control(struct ctdb_context *ctdb,
1314 enum ctdb_controls opcode,
1317 struct timeval timeout,
1318 bool dont_log_errors,
1320 client_async_callback client_callback,
1321 client_async_callback fail_callback,
1322 void *callback_data);
1324 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1326 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1328 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1329 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1331 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1332 struct ctdb_req_control *c);
1333 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1334 struct ctdb_req_control *c);
1335 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1336 struct ctdb_req_control *c,
1339 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1340 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1341 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1343 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1344 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1346 extern int script_log_level;
1347 extern bool fast_start;
1349 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1353 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1354 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1356 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1357 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1359 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1360 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1362 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1363 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1365 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1366 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1367 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1368 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1369 void ctdb_ban_self(struct ctdb_context *ctdb);
1371 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1373 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1375 int start_syslog_daemon(struct ctdb_context *ctdb);
1377 /* Where to send the log messages back to */
1378 struct ctdb_get_log_addr {
1384 extern int log_ringbuf_size;
1386 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1387 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1390 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1391 struct ctdb_context *ctdb,
1392 const char *log_prefix,
1393 void (*logfn)(const char *, uint16_t, void *),
1394 void *logfn_private, pid_t *pid);
1396 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1397 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1399 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1403 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1404 struct ctdb_db_context *ctdb_db);
1405 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1406 struct ctdb_db_context *ctdb_db,
1407 const char *reason,/* NULL means healthy */
1408 int num_healthy_nodes);
1409 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1411 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1413 void ctdb_fault_setup(void);
1415 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1416 struct ctdb_all_public_ips *ips);
1417 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1418 struct ctdb_public_ip *ip);
1420 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1422 int ctdb_statistics_init(struct ctdb_context *ctdb);
1424 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1425 struct ctdb_req_control *c,
1428 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1430 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1433 * structure to pass to a schedule_for_deletion_control
1435 struct ctdb_control_schedule_for_deletion {
1437 struct ctdb_ltdb_header hdr;
1439 uint8_t key[1]; /* key[] */
1442 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1446 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1447 const struct ctdb_ltdb_header *hdr,
1450 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1451 const struct ctdb_ltdb_header *hdr,
1452 const TDB_DATA key);
1454 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1456 /* For unit testing ctdb_transaction.c. */
1457 struct ctdb_public_ip_list {
1458 struct ctdb_public_ip_list *next;
1460 ctdb_sock_addr addr;
1462 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1464 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1466 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1468 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data);
1470 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1472 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_req_header *hdr, deferred_requeue_fn fn, void *call_context);
1474 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1476 int ctdb_null_func(struct ctdb_call_info *call);
1478 int ctdb_fetch_func(struct ctdb_call_info *call);
1480 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1482 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1486 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1489 description for a message to reload all ips via recovery master/daemon
1491 struct reloadips_all_reply {
1496 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1498 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);