4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_default_interval;
112 uint32_t vacuum_max_run_time;
113 uint32_t repack_limit;
114 uint32_t vacuum_limit;
115 uint32_t vacuum_min_interval;
116 uint32_t vacuum_max_interval;
117 uint32_t max_queue_depth_drop_msg;
118 uint32_t use_status_events_for_monitoring;
119 uint32_t allow_unhealthy_db_read;
120 uint32_t stat_history_interval;
121 uint32_t deferred_attach_timeout;
122 uint32_t vacuum_fast_path_count;
123 uint32_t lcp2_public_ip_assignment;
124 uint32_t allow_client_db_attach;
128 an installed ctdb remote call
130 struct ctdb_registered_call {
131 struct ctdb_registered_call *next, *prev;
137 this address structure might need to be generalised later for some
140 struct ctdb_address {
146 check that a pnn is valid
148 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
151 /* called from the queue code when a packet comes in. Called with data==NULL
153 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
156 /* used for callbacks in ctdb_control requests */
157 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
158 int32_t status, TDB_DATA data,
159 const char *errormsg,
162 structure describing a connected client in the daemon
165 struct ctdb_context *ctdb;
167 struct ctdb_queue *queue;
170 struct ctdb_tcp_list *tcp_list;
172 uint32_t num_persistent_updates;
173 struct ctdb_client_notify_list *notify;
178 /* state associated with a public ip address */
180 struct ctdb_vnn *prev, *next;
182 struct ctdb_iface *iface;
184 ctdb_sock_addr public_address;
185 uint8_t public_netmask_bits;
187 /* the node number that is serving this public address, if any.
188 If no node serves this ip it is set to -1 */
191 /* List of clients to tickle for this public address */
192 struct ctdb_tcp_array *tcp_array;
194 /* whether we need to update the other nodes with changes to our list
195 of connected clients */
196 bool tcp_update_needed;
198 /* a context to hang sending gratious arp events off */
199 TALLOC_CTX *takeover_ctx;
201 struct ctdb_kill_tcp *killtcp;
205 state associated with one node
208 struct ctdb_context *ctdb;
209 struct ctdb_address address;
210 const char *name; /* for debug messages */
211 void *private_data; /* private to transport */
215 /* used by the dead node monitoring */
220 /* used to track node capabilities, is only valid/tracked inside the
223 uint32_t capabilities;
225 /* a list of controls pending to this node, so we can time them out quickly
226 if the node becomes disconnected */
227 struct daemon_control_state *pending_controls;
229 /* used by the recovery daemon when distributing ip addresses
230 across the nodes. it needs to know which public ip's can be handled
233 struct ctdb_all_public_ips *known_public_ips;
234 struct ctdb_all_public_ips *available_public_ips;
235 /* used by the recovery dameon to track when a node should be banned */
236 struct ctdb_banning_state *ban_state;
240 transport specific methods
242 struct ctdb_methods {
243 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
244 int (*start)(struct ctdb_context *); /* start the transport */
245 int (*add_node)(struct ctdb_node *); /* setup a new node */
246 int (*connect_node)(struct ctdb_node *); /* connect to node */
247 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
248 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
249 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
250 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
254 transport calls up to the ctdb layer
256 struct ctdb_upcalls {
257 /* recv_pkt is called when a packet comes in */
258 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
260 /* node_dead is called when an attempt to send to a node fails */
261 void (*node_dead)(struct ctdb_node *);
263 /* node_connected is called when a connection to a node is established */
264 void (*node_connected)(struct ctdb_node *);
267 /* list of message handlers - needs to be changed to a more efficient data
268 structure so we can find a message handler given a srvid quickly */
269 struct ctdb_message_list {
270 struct ctdb_context *ctdb;
271 struct ctdb_message_list *next, *prev;
273 ctdb_msg_fn_t message_handler;
274 void *message_private;
277 /* additional data required for the daemon mode */
278 struct ctdb_daemon_data {
281 struct ctdb_queue *queue;
285 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
287 if (value > ctdb->statistics.counter) { \
288 ctdb->statistics.counter = c->hopcount; \
290 if (value > ctdb->statistics_current.counter) { \
291 ctdb->statistics_current.counter = c->hopcount; \
295 #define CTDB_INCREMENT_STAT(ctdb, counter) \
297 ctdb->statistics.counter++; \
298 ctdb->statistics_current.counter++; \
301 #define CTDB_DECREMENT_STAT(ctdb, counter) \
303 if (ctdb->statistics.counter > 0) \
304 ctdb->statistics.counter--; \
305 if (ctdb->statistics_current.counter > 0) \
306 ctdb->statistics_current.counter--; \
309 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
311 if (value > ctdb->statistics.counter.max) \
312 ctdb->statistics.counter.max = value; \
313 if (value > ctdb->statistics_current.counter.max) \
314 ctdb->statistics_current.counter.max = value; \
316 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
317 ctdb->statistics.counter.min = value; \
318 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
319 ctdb->statistics_current.counter.min = value; \
321 ctdb->statistics.counter.total += value; \
322 ctdb->statistics_current.counter.total += value; \
324 ctdb->statistics.counter.num++; \
325 ctdb->statistics_current.counter.num++; \
327 if (ctdb->tunable.reclock_latency_ms != 0) { \
328 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
329 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
335 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
337 double l = timeval_elapsed(&t); \
339 if (l > ctdb->statistics.counter.max) \
340 ctdb->statistics.counter.max = l; \
341 if (l > ctdb->statistics_current.counter.max) \
342 ctdb->statistics_current.counter.max = l; \
344 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
345 ctdb->statistics.counter.min = l; \
346 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
347 ctdb->statistics_current.counter.min = l; \
349 ctdb->statistics.counter.total += l; \
350 ctdb->statistics_current.counter.total += l; \
352 ctdb->statistics.counter.num++; \
353 ctdb->statistics_current.counter.num++; \
355 if (ctdb->tunable.log_latency_ms !=0) { \
356 if (l*1000 > ctdb->tunable.log_latency_ms) { \
357 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
366 #define INVALID_GENERATION 1
367 /* table that contains the mapping between a hash value and lmaster
369 struct ctdb_vnn_map {
376 a wire representation of the vnn map
378 struct ctdb_vnn_map_wire {
384 /* a structure that contains the elements required for the write record
387 struct ctdb_write_record {
391 unsigned char blob[1];
394 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
396 #define CTDB_MONITORING_ACTIVE 0
397 #define CTDB_MONITORING_DISABLED 1
399 /* The different capabilities of the ctdb daemon. */
400 #define CTDB_CAP_RECMASTER 0x00000001
401 #define CTDB_CAP_LMASTER 0x00000002
402 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
403 #define CTDB_CAP_LVS 0x00000004
404 /* This capability is set if NATGW is enabled */
405 #define CTDB_CAP_NATGW 0x00000008
407 #define NUM_DB_PRIORITIES 3
408 /* main state of the ctdb daemon */
409 struct ctdb_context {
410 struct tevent_context *ev;
411 struct timeval ctdbd_start_time;
412 struct timeval last_recovery_started;
413 struct timeval last_recovery_finished;
414 uint32_t recovery_mode;
415 TALLOC_CTX *tickle_update_context;
416 TALLOC_CTX *keepalive_ctx;
417 TALLOC_CTX *check_public_ifaces_ctx;
418 struct ctdb_tunable tunable;
419 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
420 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
421 bool freeze_transaction_started;
422 uint32_t freeze_transaction_id;
423 struct ctdb_address address;
425 const char *db_directory;
426 const char *db_directory_persistent;
427 const char *db_directory_state;
428 struct tdb_wrap *db_persistent_health;
429 uint32_t db_persistent_startup_generation;
430 uint64_t db_persistent_check_errors;
431 uint64_t max_persistent_check_errors;
432 const char *transport;
433 char *recovery_lock_file;
434 int recovery_lock_fd;
435 uint32_t pnn; /* our own pnn */
437 uint32_t num_connected;
439 uint32_t capabilities;
440 struct idr_context *idr;
442 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
443 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
444 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
445 struct ctdb_iface *ifaces; /* list of local interfaces */
447 const struct ctdb_methods *methods; /* transport methods */
448 const struct ctdb_upcalls *upcalls; /* transport upcalls */
449 void *private_data; /* private to transport */
450 struct ctdb_db_context *db_list;
451 struct ctdb_message_list *message_list;
452 struct ctdb_daemon_data daemon;
453 struct ctdb_statistics statistics;
454 struct ctdb_statistics statistics_current;
455 #define MAX_STAT_HISTORY 100
456 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
457 struct ctdb_vnn_map *vnn_map;
458 uint32_t num_clients;
459 uint32_t recovery_master;
460 struct ctdb_call_state *pending_calls;
461 struct ctdb_client_ip *client_ip_list;
462 struct trbt_tree *server_ids;
464 void *saved_scheduler_param;
465 const char *event_script_dir;
466 const char *notification_script;
467 const char *default_public_interface;
473 struct ctdb_monitor_state *monitor;
474 struct ctdb_log_state *log;
475 int start_as_disabled;
476 int start_as_stopped;
478 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
479 uint32_t *recd_ping_count;
480 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
482 TALLOC_CTX *event_script_ctx;
484 struct ctdb_event_script_state *current_monitor;
485 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
487 TALLOC_CTX *banning_ctx;
489 struct ctdb_vacuum_child_context *vacuumers;
491 /* mapping from pid to ctdb_client * */
492 struct ctdb_client_pid_list *client_pids;
494 /* used in the recovery daemon to remember the ip allocation */
495 struct trbt_tree *ip_tree;
497 /* Used to defer db attach requests while in recovery mode */
498 struct ctdb_deferred_attach_context *deferred_attach;
501 struct ctdb_db_context {
502 struct ctdb_db_context *next, *prev;
503 struct ctdb_context *ctdb;
507 bool readonly; /* Do we support read-only delegations ? */
510 struct tdb_wrap *ltdb;
511 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
512 struct ctdb_registered_call *calls; /* list of registered calls */
514 struct timed_event *seqnum_update;
515 struct ctdb_traverse_local_handle *traverse;
516 bool transaction_active;
517 struct ctdb_vacuum_handle *vacuum_handle;
518 char *unhealthy_reason;
519 int pending_requests;
520 struct lockwait_handle *lockwait_active;
521 struct lockwait_handle *lockwait_overflow;
522 struct revokechild_handle *revokechild_active;
523 struct ctdb_persistent_state *persistent_state;
524 struct trbt_tree *delete_queue;
525 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
527 struct ctdb_ltdb_header *header,
530 /* used to track which records we are currently fetching
531 so we can avoid sending duplicate fetch requests
533 struct trbt_tree *deferred_fetch;
537 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
538 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
539 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
540 return -1; }} while (0)
542 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
543 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
544 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
547 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
548 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
549 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
550 return NULL; }} while (0)
552 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
553 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
554 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
558 structure passed in set_call control
560 struct ctdb_control_set_call {
567 struct for kill_tcp control
569 struct ctdb_control_killtcp {
570 ctdb_sock_addr src_addr;
571 ctdb_sock_addr dst_addr;
575 struct holding a ctdb_sock_addr and an interface name,
576 used to add/remove public addresses
578 struct ctdb_control_ip_iface {
586 struct holding a ctdb_sock_addr and an interface name,
587 used for send_gratious_arp
589 struct ctdb_control_gratious_arp {
597 persistent store control - update this record on all other nodes
599 struct ctdb_control_persistent_store {
606 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
608 struct ctdb_node_flag_change {
615 struct for admin setting a ban
617 struct ctdb_ban_info {
622 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
624 #define CTDB_LMASTER_ANY 0xffffffff
627 state of a in-progress ctdb call
629 struct ctdb_call_state {
630 struct ctdb_call_state *next, *prev;
631 enum call_state state;
633 struct ctdb_req_call *c;
634 struct ctdb_db_context *ctdb_db;
636 struct ctdb_call *call;
639 void (*fn)(struct ctdb_call_state *);
645 /* used for fetch_lock */
646 struct ctdb_fetch_handle {
647 struct ctdb_db_context *ctdb_db;
650 struct ctdb_ltdb_header header;
653 /* internal prototypes */
654 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
655 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
656 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
657 int ctdb_parse_address(struct ctdb_context *ctdb,
658 TALLOC_CTX *mem_ctx, const char *str,
659 struct ctdb_address *address);
660 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
661 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
662 uint32_t ctdb_hash(const TDB_DATA *key);
663 uint32_t ctdb_hash_string(const char *str);
664 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
665 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
666 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
667 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
668 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
669 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
671 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
672 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
673 TDB_DATA key, struct ctdb_ltdb_header *header,
674 TALLOC_CTX *mem_ctx, TDB_DATA *data);
675 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
676 struct ctdb_ltdb_header *header, TDB_DATA data);
677 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
678 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
679 TDB_DATA key, struct ctdb_ltdb_header *header,
680 TALLOC_CTX *mem_ctx, TDB_DATA *data);
681 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
682 struct ctdb_req_control *c,
684 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
685 struct ctdb_req_control *c,
687 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
688 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
689 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
690 TDB_DATA key, struct ctdb_req_header *hdr,
691 void (*recv_pkt)(void *, struct ctdb_req_header *),
692 void *recv_context, bool ignore_generation);
693 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
694 TDB_DATA key, struct ctdb_ltdb_header *header,
695 struct ctdb_req_header *hdr, TDB_DATA *data,
696 void (*recv_pkt)(void *, struct ctdb_req_header *),
697 void *recv_context, bool ignore_generation);
698 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
700 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
701 struct ctdb_call *call,
702 struct ctdb_ltdb_header *header,
706 int ctdbd_start(struct ctdb_context *ctdb);
707 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
708 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
711 queue a packet for sending
713 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
716 setup the fd used by the queue
718 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
721 setup a packet queue on a socket
723 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
724 TALLOC_CTX *mem_ctx, int fd, int alignment,
726 ctdb_queue_cb_fn_t callback,
727 void *private_data, const char *fmt, ...)
728 PRINTF_ATTRIBUTE(7,8);
731 allocate a packet for use in client<->daemon communication
733 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
735 enum ctdb_operation operation,
736 size_t length, size_t slength,
738 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
739 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
741 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
743 enum ctdb_operation operation,
744 size_t length, size_t slength,
746 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
747 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
749 int ctdb_queue_length(struct ctdb_queue *queue);
752 lock a record in the ltdb, given a key
754 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
757 unlock a record in the ltdb, given a key
759 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
763 make a ctdb call to the local daemon - async send. Called from client context.
765 This constructs a ctdb_call request and queues it for processing.
766 This call never blocks.
768 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
769 struct ctdb_call *call);
772 make a recv call to the local ctdb daemon - called from client context
774 This is called when the program wants to wait for a ctdb_call to complete and get the
775 results. This call will block unless the call has already completed.
777 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
779 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
780 uint64_t srvid, TDB_DATA data);
785 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
786 uint64_t srvid, TDB_DATA data);
789 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
791 void (*callback)(void *), void *private_data);
793 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
794 struct ctdb_call *call);
796 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
798 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
799 struct ctdb_call *call,
800 struct ctdb_ltdb_header *header);
802 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
803 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
804 TDB_DATA *data, bool updatetdb);
806 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
808 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
810 int ctdb_socket_connect(struct ctdb_context *ctdb);
811 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
813 #define CTDB_BAD_REQID ((uint32_t)-1)
814 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
815 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
816 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
818 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
819 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
821 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
822 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
824 ctdb_control_callback_fn_t callback,
827 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
828 TDB_DATA *outdata, uint64_t tdb_flags,
829 bool persistent, uint32_t client_id,
830 struct ctdb_req_control *c,
833 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
834 ctdb_fn_t fn, int id);
836 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
837 uint32_t opcode, uint32_t flags, TDB_DATA data,
838 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
839 struct timeval *timeout, char **errormsg);
840 int ctdb_control_recv(struct ctdb_context *ctdb,
841 struct ctdb_client_control_state *state,
843 TDB_DATA *outdata, int32_t *status, char **errormsg);
845 struct ctdb_client_control_state *
846 ctdb_control_send(struct ctdb_context *ctdb,
847 uint32_t destnode, uint64_t srvid,
848 uint32_t opcode, uint32_t flags, TDB_DATA data,
850 struct timeval *timeout,
856 #define CHECK_CONTROL_DATA_SIZE(size) do { \
857 if (indata.dsize != size) { \
858 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
859 opcode, (unsigned)indata.dsize, (unsigned)size)); \
864 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
865 if (indata.dsize < size) { \
866 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
867 opcode, (unsigned)indata.dsize, (unsigned)size)); \
872 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
873 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
874 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
875 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
876 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
877 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
880 /* structure used for pulldb control */
881 struct ctdb_control_pulldb {
886 /* structure used for sending lists of records */
887 struct ctdb_marshall_buffer {
893 /* set dmaster control structure */
894 struct ctdb_control_set_dmaster {
900 structure for setting a tunable
902 struct ctdb_control_set_tunable {
909 structure for getting a tunable
911 struct ctdb_control_get_tunable {
917 structure for listing tunables
919 struct ctdb_control_list_tunable {
921 /* returns a : separated list of tunable names */
926 struct ctdb_node_and_flagsv4 {
929 struct sockaddr_in sin;
932 struct ctdb_node_mapv4 {
934 struct ctdb_node_and_flagsv4 nodes[1];
937 struct ctdb_control_wipe_database {
939 uint32_t transaction_id;
943 state of a in-progress ctdb call in client
945 struct ctdb_client_call_state {
946 enum call_state state;
948 struct ctdb_db_context *ctdb_db;
949 struct ctdb_call *call;
951 void (*fn)(struct ctdb_client_call_state *);
957 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
958 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
959 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
960 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
961 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
962 TDB_DATA *outdata, uint32_t srcnode);
964 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
966 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
967 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
968 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
970 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
971 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
973 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
974 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
976 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
978 struct ctdb_ltdb_header *header,
979 TDB_DATA *key, TDB_DATA *data);
981 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
982 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
983 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
985 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
986 struct ctdb_req_control *c,
987 TDB_DATA indata, bool *async_reply,
988 const char **errormsg);
989 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
990 TDB_DATA *outdata, int32_t status, const char *errormsg);
992 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
993 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
995 int ctdb_start_recoverd(struct ctdb_context *ctdb);
996 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
998 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1000 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1001 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1002 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1003 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1004 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1005 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1006 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1007 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1008 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1011 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1012 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1013 void ctdb_node_dead(struct ctdb_node *node);
1014 void ctdb_node_connected(struct ctdb_node *node);
1015 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1016 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1017 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1018 pid_t ctdb_fork(struct ctdb_context *ctdb);
1019 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1020 struct ctdb_req_control *c,
1023 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1024 struct ctdb_req_control *c,
1027 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1028 struct ctdb_req_control *c,
1031 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1032 struct ctdb_req_control *c,
1035 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1036 struct ctdb_req_control *c,
1038 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1039 struct ctdb_req_control *c,
1042 struct ctdb_public_ipv4 {
1044 struct sockaddr_in sin;
1047 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1048 uint32_t destnode, struct ctdb_public_ip *ip);
1049 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1050 uint32_t destnode, struct ctdb_public_ip *ip);
1052 struct ctdb_all_public_ipsv4 {
1054 struct ctdb_public_ipv4 ips[1];
1057 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1058 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1059 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1060 struct timeval timeout,
1062 TALLOC_CTX *mem_ctx,
1063 struct ctdb_all_public_ips **ips);
1064 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1065 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1066 struct timeval timeout, uint32_t destnode,
1067 TALLOC_CTX *mem_ctx,
1069 struct ctdb_all_public_ips **ips);
1070 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1071 struct timeval timeout, uint32_t destnode,
1072 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1075 #define CTDB_IFACE_SIZE IFNAMSIZ
1077 #define CTDB_IFACE_SIZE 16
1080 struct ctdb_control_iface_info {
1081 char name[CTDB_IFACE_SIZE+2];
1082 uint16_t link_state;
1083 uint32_t references;
1086 struct ctdb_control_public_ip_info {
1087 struct ctdb_public_ip ip;
1088 uint32_t active_idx;
1090 struct ctdb_control_iface_info ifaces[1];
1093 struct ctdb_control_get_ifaces {
1095 struct ctdb_control_iface_info ifaces[1];
1098 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1099 struct ctdb_req_control *c,
1102 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1103 struct ctdb_req_control *c,
1105 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1106 struct ctdb_req_control *c,
1108 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1109 struct timeval timeout, uint32_t destnode,
1110 TALLOC_CTX *mem_ctx,
1111 const ctdb_sock_addr *addr,
1112 struct ctdb_control_public_ip_info **info);
1113 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1114 struct timeval timeout, uint32_t destnode,
1115 TALLOC_CTX *mem_ctx,
1116 struct ctdb_control_get_ifaces **ifaces);
1117 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1118 struct timeval timeout, uint32_t destnode,
1119 TALLOC_CTX *mem_ctx,
1120 const struct ctdb_control_iface_info *info);
1122 /* from takeover/system.c */
1123 uint32_t uint16_checksum(uint16_t *data, size_t n);
1124 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1125 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1126 bool ctdb_sys_check_iface_exists(const char *iface);
1127 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1128 const ctdb_sock_addr *src,
1129 uint32_t seq, uint32_t ack, int rst);
1131 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1132 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1135 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1136 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1137 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1138 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1140 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1142 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1143 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1144 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1145 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1146 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1147 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1148 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1150 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1151 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1152 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1153 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1154 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1155 TALLOC_CTX *mem_ctx,
1156 void (*callback)(struct ctdb_context *, int, void *),
1159 enum ctdb_eventscript_call call,
1160 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1161 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1163 void set_nonblocking(int fd);
1164 void set_close_on_exec(int fd);
1166 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1168 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1170 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1172 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1173 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1174 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1175 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1176 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1178 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1180 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1182 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1183 struct timeval timeout,
1185 struct ctdb_tunable *tunables);
1187 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1189 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1190 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1191 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1192 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1195 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1196 int ctdb_sys_close_capture_socket(void *private_data);
1197 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);
1199 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1200 struct timeval timeout,
1202 struct ctdb_control_killtcp *killtcp);
1204 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1205 struct timeval timeout,
1207 struct ctdb_control_ip_iface *pub);
1209 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1210 struct timeval timeout,
1212 struct ctdb_control_ip_iface *pub);
1214 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1215 struct timeval timeout,
1217 ctdb_sock_addr *addr,
1218 const char *ifname);
1220 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1221 struct timeval timeout,
1223 TALLOC_CTX *mem_ctx,
1224 ctdb_sock_addr *addr,
1225 struct ctdb_control_tcp_tickle_list **list);
1228 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1231 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1233 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1235 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1237 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1240 int ctdb_attach_databases(struct ctdb_context *ctdb);
1242 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1243 struct ctdb_req_control *c,
1244 TDB_DATA recdata, bool *async_reply);
1245 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1246 struct ctdb_req_control *c, TDB_DATA recdata,
1248 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1249 struct ctdb_req_control *c,
1250 TDB_DATA recdata, bool *async_reply);
1252 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1253 struct ctdb_req_control *c,
1254 TDB_DATA recdata, bool *async_reply);
1256 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1258 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1259 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1260 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1261 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1262 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1263 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1268 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1269 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1271 void ctdb_block_signal(int signum);
1272 void ctdb_unblock_signal(int signum);
1273 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1274 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1275 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1277 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1279 struct client_async_data {
1280 enum ctdb_controls opcode;
1281 bool dont_log_errors;
1283 uint32_t fail_count;
1284 client_async_callback callback;
1285 client_async_callback fail_callback;
1286 void *callback_data;
1288 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1289 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1290 int ctdb_client_async_control(struct ctdb_context *ctdb,
1291 enum ctdb_controls opcode,
1294 struct timeval timeout,
1295 bool dont_log_errors,
1297 client_async_callback client_callback,
1298 client_async_callback fail_callback,
1299 void *callback_data);
1301 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1303 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1305 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1306 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1308 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1309 struct ctdb_req_control *c);
1310 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1311 struct ctdb_req_control *c);
1312 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1313 struct ctdb_req_control *c,
1316 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1317 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1318 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1320 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1321 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1323 extern int script_log_level;
1324 extern bool fast_start;
1326 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1330 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1331 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1333 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1334 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1336 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1337 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1339 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1340 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1342 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1343 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1344 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1345 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1346 void ctdb_ban_self(struct ctdb_context *ctdb);
1348 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1350 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1352 int start_syslog_daemon(struct ctdb_context *ctdb);
1354 /* Where to send the log messages back to */
1355 struct ctdb_get_log_addr {
1361 extern int log_ringbuf_size;
1363 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1364 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1367 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1368 struct ctdb_context *ctdb,
1369 const char *log_prefix,
1370 void (*logfn)(const char *, uint16_t, void *),
1371 void *logfn_private, pid_t *pid);
1373 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1374 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1376 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1380 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1381 struct ctdb_db_context *ctdb_db);
1382 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1383 struct ctdb_db_context *ctdb_db,
1384 const char *reason,/* NULL means healthy */
1385 int num_healthy_nodes);
1386 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1388 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1390 void ctdb_fault_setup(void);
1392 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1393 struct ctdb_all_public_ips *ips);
1394 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1395 struct ctdb_public_ip *ip);
1397 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1399 int ctdb_statistics_init(struct ctdb_context *ctdb);
1401 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1402 struct ctdb_req_control *c,
1405 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1407 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1410 * structure to pass to a schedule_for_deletion_control
1412 struct ctdb_control_schedule_for_deletion {
1414 struct ctdb_ltdb_header hdr;
1416 uint8_t key[1]; /* key[] */
1419 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1423 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1424 const struct ctdb_ltdb_header *hdr,
1427 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1429 /* For unit testing ctdb_transaction.c. */
1430 struct ctdb_public_ip_list {
1431 struct ctdb_public_ip_list *next;
1433 ctdb_sock_addr addr;
1435 uint32_t ip_distance(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2);
1436 uint32_t ip_distance_2_sum(ctdb_sock_addr *ip,
1437 struct ctdb_public_ip_list *ips,
1439 uint32_t lcp2_imbalance(struct ctdb_public_ip_list * all_ips, int pnn);
1440 void lcp2_init(struct ctdb_context * tmp_ctx,
1441 struct ctdb_node_map * nodemap,
1443 struct ctdb_public_ip_list *all_ips,
1444 uint32_t **lcp2_imbalances,
1445 bool **newly_healthy);
1446 void lcp2_allocate_unassigned(struct ctdb_context *ctdb,
1447 struct ctdb_node_map *nodemap,
1449 struct ctdb_public_ip_list *all_ips,
1450 uint32_t *lcp2_imbalances);
1451 bool lcp2_failback(struct ctdb_context *ctdb,
1452 struct ctdb_node_map *nodemap,
1454 struct ctdb_public_ip_list *all_ips,
1455 uint32_t *lcp2_imbalances,
1456 bool *newly_healthy);
1457 void ctdb_takeover_run_core(struct ctdb_context *ctdb,
1458 struct ctdb_node_map *nodemap,
1459 struct ctdb_public_ip_list **all_ips_p);
1461 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1463 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1465 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1467 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);
1469 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1471 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);
1473 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);