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;
137 an installed ctdb remote call
139 struct ctdb_registered_call {
140 struct ctdb_registered_call *next, *prev;
146 this address structure might need to be generalised later for some
149 struct ctdb_address {
155 check that a pnn is valid
157 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
160 /* called from the queue code when a packet comes in. Called with data==NULL
162 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
165 /* used for callbacks in ctdb_control requests */
166 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
167 int32_t status, TDB_DATA data,
168 const char *errormsg,
171 structure describing a connected client in the daemon
174 struct ctdb_context *ctdb;
176 struct ctdb_queue *queue;
179 struct ctdb_tcp_list *tcp_list;
181 uint32_t num_persistent_updates;
182 struct ctdb_client_notify_list *notify;
187 /* state associated with a public ip address */
189 struct ctdb_vnn *prev, *next;
191 struct ctdb_iface *iface;
193 ctdb_sock_addr public_address;
194 uint8_t public_netmask_bits;
196 /* the node number that is serving this public address, if any.
197 If no node serves this ip it is set to -1 */
200 /* List of clients to tickle for this public address */
201 struct ctdb_tcp_array *tcp_array;
203 /* whether we need to update the other nodes with changes to our list
204 of connected clients */
205 bool tcp_update_needed;
207 /* a context to hang sending gratious arp events off */
208 TALLOC_CTX *takeover_ctx;
210 struct ctdb_kill_tcp *killtcp;
214 state associated with one node
217 struct ctdb_context *ctdb;
218 struct ctdb_address address;
219 const char *name; /* for debug messages */
220 void *private_data; /* private to transport */
224 /* used by the dead node monitoring */
229 /* used to track node capabilities, is only valid/tracked inside the
232 uint32_t capabilities;
234 /* a list of controls pending to this node, so we can time them out quickly
235 if the node becomes disconnected */
236 struct daemon_control_state *pending_controls;
238 /* used by the recovery daemon when distributing ip addresses
239 across the nodes. it needs to know which public ip's can be handled
242 struct ctdb_all_public_ips *known_public_ips;
243 struct ctdb_all_public_ips *available_public_ips;
244 /* used by the recovery dameon to track when a node should be banned */
245 struct ctdb_banning_state *ban_state;
249 transport specific methods
251 struct ctdb_methods {
252 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
253 int (*start)(struct ctdb_context *); /* start the transport */
254 int (*add_node)(struct ctdb_node *); /* setup a new node */
255 int (*connect_node)(struct ctdb_node *); /* connect to node */
256 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
257 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
258 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
259 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
263 transport calls up to the ctdb layer
265 struct ctdb_upcalls {
266 /* recv_pkt is called when a packet comes in */
267 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
269 /* node_dead is called when an attempt to send to a node fails */
270 void (*node_dead)(struct ctdb_node *);
272 /* node_connected is called when a connection to a node is established */
273 void (*node_connected)(struct ctdb_node *);
276 /* list of message handlers - needs to be changed to a more efficient data
277 structure so we can find a message handler given a srvid quickly */
278 struct ctdb_message_list {
279 struct ctdb_context *ctdb;
280 struct ctdb_message_list *next, *prev;
282 ctdb_msg_fn_t message_handler;
283 void *message_private;
286 /* additional data required for the daemon mode */
287 struct ctdb_daemon_data {
290 struct ctdb_queue *queue;
294 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
296 if (value > ctdb->statistics.counter) { \
297 ctdb->statistics.counter = c->hopcount; \
299 if (value > ctdb->statistics_current.counter) { \
300 ctdb->statistics_current.counter = c->hopcount; \
304 #define CTDB_INCREMENT_STAT(ctdb, counter) \
306 ctdb->statistics.counter++; \
307 ctdb->statistics_current.counter++; \
310 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
312 ctdb_db->statistics.counter++; \
315 #define CTDB_DECREMENT_STAT(ctdb, counter) \
317 if (ctdb->statistics.counter > 0) \
318 ctdb->statistics.counter--; \
319 if (ctdb->statistics_current.counter > 0) \
320 ctdb->statistics_current.counter--; \
323 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
325 if (value > ctdb->statistics.counter.max) \
326 ctdb->statistics.counter.max = value; \
327 if (value > ctdb->statistics_current.counter.max) \
328 ctdb->statistics_current.counter.max = value; \
330 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
331 ctdb->statistics.counter.min = value; \
332 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
333 ctdb->statistics_current.counter.min = value; \
335 ctdb->statistics.counter.total += value; \
336 ctdb->statistics_current.counter.total += value; \
338 ctdb->statistics.counter.num++; \
339 ctdb->statistics_current.counter.num++; \
341 if (ctdb->tunable.reclock_latency_ms != 0) { \
342 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
343 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
349 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
351 double l = timeval_elapsed(&t); \
353 if (l > ctdb->statistics.counter.max) \
354 ctdb->statistics.counter.max = l; \
355 if (l > ctdb->statistics_current.counter.max) \
356 ctdb->statistics_current.counter.max = l; \
358 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
359 ctdb->statistics.counter.min = l; \
360 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
361 ctdb->statistics_current.counter.min = l; \
363 ctdb->statistics.counter.total += l; \
364 ctdb->statistics_current.counter.total += l; \
366 ctdb->statistics.counter.num++; \
367 ctdb->statistics_current.counter.num++; \
369 if (ctdb->tunable.log_latency_ms !=0) { \
370 if (l*1000 > ctdb->tunable.log_latency_ms) { \
371 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
378 /* a structure that contains the elements required for the write record
381 struct ctdb_write_record {
385 unsigned char blob[1];
388 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
390 #define CTDB_MONITORING_ACTIVE 0
391 #define CTDB_MONITORING_DISABLED 1
393 /* The different capabilities of the ctdb daemon. */
394 #define CTDB_CAP_RECMASTER 0x00000001
395 #define CTDB_CAP_LMASTER 0x00000002
396 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
397 #define CTDB_CAP_LVS 0x00000004
398 /* This capability is set if NATGW is enabled */
399 #define CTDB_CAP_NATGW 0x00000008
401 #define NUM_DB_PRIORITIES 3
402 /* main state of the ctdb daemon */
403 struct ctdb_context {
404 struct tevent_context *ev;
405 struct timeval ctdbd_start_time;
406 struct timeval last_recovery_started;
407 struct timeval last_recovery_finished;
408 uint32_t recovery_mode;
409 TALLOC_CTX *tickle_update_context;
410 TALLOC_CTX *keepalive_ctx;
411 TALLOC_CTX *check_public_ifaces_ctx;
412 struct ctdb_tunable tunable;
413 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
414 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
415 bool freeze_transaction_started;
416 uint32_t freeze_transaction_id;
417 struct ctdb_address address;
419 const char *db_directory;
420 const char *db_directory_persistent;
421 const char *db_directory_state;
422 struct tdb_wrap *db_persistent_health;
423 uint32_t db_persistent_startup_generation;
424 uint64_t db_persistent_check_errors;
425 uint64_t max_persistent_check_errors;
426 const char *transport;
427 char *recovery_lock_file;
428 int recovery_lock_fd;
429 uint32_t pnn; /* our own pnn */
431 uint32_t num_connected;
433 uint32_t capabilities;
434 struct idr_context *idr;
436 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
437 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
438 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
439 struct ctdb_iface *ifaces; /* list of local interfaces */
441 const struct ctdb_methods *methods; /* transport methods */
442 const struct ctdb_upcalls *upcalls; /* transport upcalls */
443 void *private_data; /* private to transport */
444 struct ctdb_db_context *db_list;
445 struct ctdb_message_list *message_list;
446 struct ctdb_daemon_data daemon;
447 struct ctdb_statistics statistics;
448 struct ctdb_statistics statistics_current;
449 #define MAX_STAT_HISTORY 100
450 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
451 struct ctdb_vnn_map *vnn_map;
452 uint32_t num_clients;
453 uint32_t recovery_master;
454 struct ctdb_call_state *pending_calls;
455 struct ctdb_client_ip *client_ip_list;
456 bool do_checkpublicip;
457 struct trbt_tree *server_ids;
459 void *saved_scheduler_param;
460 const char *event_script_dir;
461 const char *notification_script;
462 const char *default_public_interface;
468 struct ctdb_monitor_state *monitor;
469 struct ctdb_log_state *log;
470 int start_as_disabled;
471 int start_as_stopped;
473 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
474 uint32_t *recd_ping_count;
475 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
477 TALLOC_CTX *event_script_ctx;
479 struct ctdb_event_script_state *current_monitor;
480 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
482 TALLOC_CTX *banning_ctx;
484 struct ctdb_vacuum_child_context *vacuumers;
486 /* mapping from pid to ctdb_client * */
487 struct ctdb_client_pid_list *client_pids;
489 /* used in the recovery daemon to remember the ip allocation */
490 struct trbt_tree *ip_tree;
492 /* Used to defer db attach requests while in recovery mode */
493 struct ctdb_deferred_attach_context *deferred_attach;
495 /* if we are a child process, do we have a domain socket to send controls on */
496 bool can_send_controls;
498 /* list of event script callback functions that are active */
499 struct event_script_callback *script_callbacks;
501 struct ctdb_reloadips_handle *reload_ips;
503 const char *public_addresses_file;
506 struct ctdb_db_context {
507 struct ctdb_db_context *next, *prev;
508 struct ctdb_context *ctdb;
512 bool readonly; /* Do we support read-only delegations ? */
513 bool sticky; /* Do we support sticky records ? */
516 struct tdb_wrap *ltdb;
517 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
518 struct ctdb_registered_call *calls; /* list of registered calls */
520 struct timed_event *seqnum_update;
521 struct ctdb_traverse_local_handle *traverse;
522 bool transaction_active;
523 struct ctdb_vacuum_handle *vacuum_handle;
524 char *unhealthy_reason;
525 int pending_requests;
526 struct lockwait_handle *lockwait_active;
527 struct lockwait_handle *lockwait_overflow;
528 struct revokechild_handle *revokechild_active;
529 struct ctdb_persistent_state *persistent_state;
530 struct trbt_tree *delete_queue;
531 struct trbt_tree *sticky_records;
532 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
534 struct ctdb_ltdb_header *header,
537 /* used to track which records we are currently fetching
538 so we can avoid sending duplicate fetch requests
540 struct trbt_tree *deferred_fetch;
542 struct ctdb_db_statistics statistics;
546 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
547 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
548 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
549 return -1; }} while (0)
551 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
552 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
553 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
556 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
557 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
558 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
559 return NULL; }} while (0)
561 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
562 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
563 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
567 structure passed in set_call control
569 struct ctdb_control_set_call {
576 struct for kill_tcp control
578 struct ctdb_control_killtcp {
579 ctdb_sock_addr src_addr;
580 ctdb_sock_addr dst_addr;
584 struct holding a ctdb_sock_addr and an interface name,
585 used to add/remove public addresses
587 struct ctdb_control_ip_iface {
595 struct holding a ctdb_sock_addr and an interface name,
596 used for send_gratious_arp
598 struct ctdb_control_gratious_arp {
606 persistent store control - update this record on all other nodes
608 struct ctdb_control_persistent_store {
615 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
617 struct ctdb_node_flag_change {
624 struct for admin setting a ban
626 struct ctdb_ban_info {
631 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
633 #define CTDB_LMASTER_ANY 0xffffffff
636 state of a in-progress ctdb call
638 struct ctdb_call_state {
639 struct ctdb_call_state *next, *prev;
640 enum call_state state;
642 struct ctdb_req_call *c;
643 struct ctdb_db_context *ctdb_db;
645 struct ctdb_call *call;
648 void (*fn)(struct ctdb_call_state *);
654 /* used for fetch_lock */
655 struct ctdb_fetch_handle {
656 struct ctdb_db_context *ctdb_db;
659 struct ctdb_ltdb_header header;
662 /* internal prototypes */
663 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
664 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
665 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
666 int ctdb_parse_address(struct ctdb_context *ctdb,
667 TALLOC_CTX *mem_ctx, const char *str,
668 struct ctdb_address *address);
669 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
670 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
671 uint32_t ctdb_hash(const TDB_DATA *key);
672 uint32_t ctdb_hash_string(const char *str);
673 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
674 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
675 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
676 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
677 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
678 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
680 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
681 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
682 TDB_DATA key, struct ctdb_ltdb_header *header,
683 TALLOC_CTX *mem_ctx, TDB_DATA *data);
684 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
685 struct ctdb_ltdb_header *header, TDB_DATA data);
686 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
687 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
688 TDB_DATA key, struct ctdb_ltdb_header *header,
689 TALLOC_CTX *mem_ctx, TDB_DATA *data);
690 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
691 struct ctdb_req_control *c,
693 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
694 struct ctdb_req_control *c,
696 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
697 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
698 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
699 TDB_DATA key, struct ctdb_req_header *hdr,
700 void (*recv_pkt)(void *, struct ctdb_req_header *),
701 void *recv_context, bool ignore_generation);
702 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
703 TDB_DATA key, struct ctdb_ltdb_header *header,
704 struct ctdb_req_header *hdr, TDB_DATA *data,
705 void (*recv_pkt)(void *, struct ctdb_req_header *),
706 void *recv_context, bool ignore_generation);
707 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
709 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
710 struct ctdb_call *call,
711 struct ctdb_ltdb_header *header,
715 int ctdbd_start(struct ctdb_context *ctdb);
716 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
717 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
720 queue a packet for sending
722 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
725 setup the fd used by the queue
727 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
730 setup a packet queue on a socket
732 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
733 TALLOC_CTX *mem_ctx, int fd, int alignment,
735 ctdb_queue_cb_fn_t callback,
736 void *private_data, const char *fmt, ...)
737 PRINTF_ATTRIBUTE(7,8);
740 allocate a packet for use in client<->daemon communication
742 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
744 enum ctdb_operation operation,
745 size_t length, size_t slength,
747 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
748 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
750 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
752 enum ctdb_operation operation,
753 size_t length, size_t slength,
755 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
756 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
758 int ctdb_queue_length(struct ctdb_queue *queue);
761 lock a record in the ltdb, given a key
763 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
766 unlock a record in the ltdb, given a key
768 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
772 make a ctdb call to the local daemon - async send. Called from client context.
774 This constructs a ctdb_call request and queues it for processing.
775 This call never blocks.
777 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
778 struct ctdb_call *call);
781 make a recv call to the local ctdb daemon - called from client context
783 This is called when the program wants to wait for a ctdb_call to complete and get the
784 results. This call will block unless the call has already completed.
786 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
788 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
789 uint64_t srvid, TDB_DATA data);
794 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
795 uint64_t srvid, TDB_DATA data);
798 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
800 void (*callback)(void *), void *private_data);
802 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
803 struct ctdb_call *call);
805 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
807 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
808 struct ctdb_call *call,
809 struct ctdb_ltdb_header *header);
811 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
812 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
813 TDB_DATA *data, bool updatetdb, uint32_t caller);
815 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
817 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
819 int ctdb_socket_connect(struct ctdb_context *ctdb);
820 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
822 #define CTDB_BAD_REQID ((uint32_t)-1)
823 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
824 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
825 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
827 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
828 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
830 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
831 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
833 ctdb_control_callback_fn_t callback,
836 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
837 TDB_DATA *outdata, uint64_t tdb_flags,
838 bool persistent, uint32_t client_id,
839 struct ctdb_req_control *c,
842 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
843 ctdb_fn_t fn, int id);
845 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
846 uint32_t opcode, uint32_t flags, TDB_DATA data,
847 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
848 struct timeval *timeout, char **errormsg);
849 int ctdb_control_recv(struct ctdb_context *ctdb,
850 struct ctdb_client_control_state *state,
852 TDB_DATA *outdata, int32_t *status, char **errormsg);
854 struct ctdb_client_control_state *
855 ctdb_control_send(struct ctdb_context *ctdb,
856 uint32_t destnode, uint64_t srvid,
857 uint32_t opcode, uint32_t flags, TDB_DATA data,
859 struct timeval *timeout,
865 #define CHECK_CONTROL_DATA_SIZE(size) do { \
866 if (indata.dsize != size) { \
867 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
868 opcode, (unsigned)indata.dsize, (unsigned)size)); \
873 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
874 if (indata.dsize < size) { \
875 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
876 opcode, (unsigned)indata.dsize, (unsigned)size)); \
881 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
882 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
883 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
884 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
885 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
886 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
889 /* structure used for pulldb control */
890 struct ctdb_control_pulldb {
895 /* structure used for sending lists of records */
896 struct ctdb_marshall_buffer {
902 /* set dmaster control structure */
903 struct ctdb_control_set_dmaster {
909 structure for setting a tunable
911 struct ctdb_control_set_tunable {
918 structure for getting a tunable
920 struct ctdb_control_get_tunable {
926 structure for listing tunables
928 struct ctdb_control_list_tunable {
930 /* returns a : separated list of tunable names */
935 struct ctdb_node_and_flagsv4 {
938 struct sockaddr_in sin;
941 struct ctdb_node_mapv4 {
943 struct ctdb_node_and_flagsv4 nodes[1];
946 struct ctdb_control_wipe_database {
948 uint32_t transaction_id;
952 state of a in-progress ctdb call in client
954 struct ctdb_client_call_state {
955 enum call_state state;
957 struct ctdb_db_context *ctdb_db;
958 struct ctdb_call *call;
960 void (*fn)(struct ctdb_client_call_state *);
966 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
971 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
972 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
973 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
974 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
975 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
976 TDB_DATA *outdata, uint32_t srcnode);
978 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
980 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
981 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
982 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
983 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
986 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
987 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
989 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
990 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
992 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
994 struct ctdb_ltdb_header *header,
995 TDB_DATA *key, TDB_DATA *data);
997 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
998 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
999 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1001 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1002 struct ctdb_req_control *c,
1003 TDB_DATA indata, bool *async_reply,
1004 const char **errormsg);
1005 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1006 TDB_DATA *outdata, int32_t status, const char *errormsg);
1008 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1009 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1011 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1012 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1014 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1016 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1017 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1018 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1019 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1020 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1021 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1022 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1023 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1024 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1027 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1028 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1029 void ctdb_node_dead(struct ctdb_node *node);
1030 void ctdb_node_connected(struct ctdb_node *node);
1031 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1032 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1033 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1034 pid_t ctdb_fork(struct ctdb_context *ctdb);
1035 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1036 struct ctdb_req_control *c,
1039 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1040 struct ctdb_req_control *c,
1043 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1044 struct ctdb_req_control *c,
1047 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1048 struct ctdb_req_control *c,
1051 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1052 struct ctdb_req_control *c,
1054 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1055 struct ctdb_req_control *c,
1058 struct ctdb_public_ipv4 {
1060 struct sockaddr_in sin;
1063 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1064 uint32_t destnode, struct ctdb_public_ip *ip);
1065 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1066 uint32_t destnode, struct ctdb_public_ip *ip);
1068 struct ctdb_all_public_ipsv4 {
1070 struct ctdb_public_ipv4 ips[1];
1073 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1074 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1075 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1076 struct timeval timeout,
1078 TALLOC_CTX *mem_ctx,
1079 struct ctdb_all_public_ips **ips);
1080 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1081 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1082 struct timeval timeout, uint32_t destnode,
1083 TALLOC_CTX *mem_ctx,
1085 struct ctdb_all_public_ips **ips);
1086 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1087 struct timeval timeout, uint32_t destnode,
1088 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1090 struct ctdb_control_iface_info {
1091 char name[CTDB_IFACE_SIZE+2];
1092 uint16_t link_state;
1093 uint32_t references;
1096 struct ctdb_control_public_ip_info {
1097 struct ctdb_public_ip ip;
1098 uint32_t active_idx;
1100 struct ctdb_control_iface_info ifaces[1];
1103 struct ctdb_control_get_ifaces {
1105 struct ctdb_control_iface_info ifaces[1];
1108 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1109 struct ctdb_req_control *c,
1112 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1113 struct ctdb_req_control *c,
1115 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1116 struct ctdb_req_control *c,
1118 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1119 struct timeval timeout, uint32_t destnode,
1120 TALLOC_CTX *mem_ctx,
1121 const ctdb_sock_addr *addr,
1122 struct ctdb_control_public_ip_info **info);
1123 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1124 struct timeval timeout, uint32_t destnode,
1125 TALLOC_CTX *mem_ctx,
1126 struct ctdb_control_get_ifaces **ifaces);
1127 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1128 struct timeval timeout, uint32_t destnode,
1129 TALLOC_CTX *mem_ctx,
1130 const struct ctdb_control_iface_info *info);
1132 /* from takeover/system.c */
1133 uint32_t uint16_checksum(uint16_t *data, size_t n);
1134 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1135 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1136 bool ctdb_sys_check_iface_exists(const char *iface);
1137 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1138 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1139 const ctdb_sock_addr *src,
1140 uint32_t seq, uint32_t ack, int rst);
1142 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1143 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1146 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1147 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1148 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1149 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1150 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1152 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1154 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1155 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1156 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1157 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1158 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1159 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1160 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1162 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1163 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1164 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1165 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1166 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1167 TALLOC_CTX *mem_ctx,
1168 void (*callback)(struct ctdb_context *, int, void *),
1171 enum ctdb_eventscript_call call,
1172 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1173 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1175 void set_nonblocking(int fd);
1176 void set_close_on_exec(int fd);
1178 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1180 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1182 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1184 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1185 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1186 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1187 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1188 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1190 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1192 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1194 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1195 struct timeval timeout,
1197 struct ctdb_tunable *tunables);
1199 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1201 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1202 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1203 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1204 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1207 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1208 int ctdb_sys_close_capture_socket(void *private_data);
1209 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);
1211 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1212 struct timeval timeout,
1214 struct ctdb_control_killtcp *killtcp);
1216 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1217 struct timeval timeout,
1219 struct ctdb_control_ip_iface *pub);
1221 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1222 struct timeval timeout,
1224 struct ctdb_control_ip_iface *pub);
1226 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1227 struct timeval timeout,
1229 ctdb_sock_addr *addr,
1230 const char *ifname);
1232 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1233 struct timeval timeout,
1235 TALLOC_CTX *mem_ctx,
1236 ctdb_sock_addr *addr,
1237 struct ctdb_control_tcp_tickle_list **list);
1240 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1243 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1245 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1247 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1249 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1252 int ctdb_attach_databases(struct ctdb_context *ctdb);
1254 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1255 struct ctdb_req_control *c,
1256 TDB_DATA recdata, bool *async_reply);
1257 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1258 struct ctdb_req_control *c, TDB_DATA recdata,
1260 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1261 struct ctdb_req_control *c,
1262 TDB_DATA recdata, bool *async_reply);
1264 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1265 struct ctdb_req_control *c,
1266 TDB_DATA recdata, bool *async_reply);
1268 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1270 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1271 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1272 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1273 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1274 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1275 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1280 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1281 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1283 void ctdb_block_signal(int signum);
1284 void ctdb_unblock_signal(int signum);
1285 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1286 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1287 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1289 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1291 struct client_async_data {
1292 enum ctdb_controls opcode;
1293 bool dont_log_errors;
1295 uint32_t fail_count;
1296 client_async_callback callback;
1297 client_async_callback fail_callback;
1298 void *callback_data;
1300 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1301 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1302 int ctdb_client_async_control(struct ctdb_context *ctdb,
1303 enum ctdb_controls opcode,
1306 struct timeval timeout,
1307 bool dont_log_errors,
1309 client_async_callback client_callback,
1310 client_async_callback fail_callback,
1311 void *callback_data);
1313 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1315 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1317 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1318 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1320 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1321 struct ctdb_req_control *c);
1322 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1323 struct ctdb_req_control *c);
1324 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1325 struct ctdb_req_control *c,
1328 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1329 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1330 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1332 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1333 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1335 extern int script_log_level;
1336 extern bool fast_start;
1338 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1342 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1343 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1345 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1346 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1348 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1349 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1351 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1352 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1354 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1355 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1356 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1357 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1358 void ctdb_ban_self(struct ctdb_context *ctdb);
1360 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1362 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1364 int start_syslog_daemon(struct ctdb_context *ctdb);
1366 /* Where to send the log messages back to */
1367 struct ctdb_get_log_addr {
1373 extern int log_ringbuf_size;
1375 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1376 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1379 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1380 struct ctdb_context *ctdb,
1381 const char *log_prefix,
1382 void (*logfn)(const char *, uint16_t, void *),
1383 void *logfn_private, pid_t *pid);
1385 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1386 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1388 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1392 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1393 struct ctdb_db_context *ctdb_db);
1394 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1395 struct ctdb_db_context *ctdb_db,
1396 const char *reason,/* NULL means healthy */
1397 int num_healthy_nodes);
1398 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1400 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1402 void ctdb_fault_setup(void);
1404 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1405 struct ctdb_all_public_ips *ips);
1406 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1407 struct ctdb_public_ip *ip);
1409 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1411 int ctdb_statistics_init(struct ctdb_context *ctdb);
1413 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1414 struct ctdb_req_control *c,
1417 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1419 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1422 * structure to pass to a schedule_for_deletion_control
1424 struct ctdb_control_schedule_for_deletion {
1426 struct ctdb_ltdb_header hdr;
1428 uint8_t key[1]; /* key[] */
1431 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1435 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1436 const struct ctdb_ltdb_header *hdr,
1439 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1440 const struct ctdb_ltdb_header *hdr,
1441 const TDB_DATA key);
1443 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1445 /* For unit testing ctdb_transaction.c. */
1446 struct ctdb_public_ip_list {
1447 struct ctdb_public_ip_list *next;
1449 ctdb_sock_addr addr;
1451 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1453 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1455 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1457 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);
1459 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1461 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);
1463 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1465 int ctdb_null_func(struct ctdb_call_info *call);
1467 int ctdb_fetch_func(struct ctdb_call_info *call);
1469 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1471 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1475 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1478 description for a message to reload all ips via recovery master/daemon
1480 struct reloadips_all_reply {
1485 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1487 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);