4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_interval;
112 uint32_t vacuum_default_interval;
113 uint32_t vacuum_max_run_time;
114 uint32_t repack_limit;
115 uint32_t vacuum_limit;
116 uint32_t vacuum_min_interval;
117 uint32_t vacuum_max_interval;
118 uint32_t max_queue_depth_drop_msg;
119 uint32_t use_status_events_for_monitoring;
120 uint32_t allow_unhealthy_db_read;
121 uint32_t stat_history_interval;
122 uint32_t deferred_attach_timeout;
123 uint32_t vacuum_fast_path_count;
124 uint32_t lcp2_public_ip_assignment;
125 uint32_t allow_client_db_attach;
126 uint32_t recover_pdb_by_seqnum;
127 uint32_t deferred_rebalance_on_node_add;
128 uint32_t fetch_collapse;
129 uint32_t max_lacount;
130 uint32_t hopcount_make_sticky;
131 uint32_t sticky_duration;
132 uint32_t sticky_pindown;
133 uint32_t no_ip_takeover;
134 uint32_t db_record_count_warn;
135 uint32_t db_record_size_warn;
136 uint32_t db_size_warn;
137 uint32_t pulldb_preallocation_size;
141 an installed ctdb remote call
143 struct ctdb_registered_call {
144 struct ctdb_registered_call *next, *prev;
150 this address structure might need to be generalised later for some
153 struct ctdb_address {
159 check that a pnn is valid
161 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
164 /* called from the queue code when a packet comes in. Called with data==NULL
166 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
169 /* used for callbacks in ctdb_control requests */
170 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
171 int32_t status, TDB_DATA data,
172 const char *errormsg,
175 structure describing a connected client in the daemon
178 struct ctdb_context *ctdb;
180 struct ctdb_queue *queue;
183 struct ctdb_tcp_list *tcp_list;
185 uint32_t num_persistent_updates;
186 struct ctdb_client_notify_list *notify;
191 /* state associated with a public ip address */
193 struct ctdb_vnn *prev, *next;
195 struct ctdb_iface *iface;
197 ctdb_sock_addr public_address;
198 uint8_t public_netmask_bits;
200 /* the node number that is serving this public address, if any.
201 If no node serves this ip it is set to -1 */
204 /* List of clients to tickle for this public address */
205 struct ctdb_tcp_array *tcp_array;
207 /* whether we need to update the other nodes with changes to our list
208 of connected clients */
209 bool tcp_update_needed;
211 /* a context to hang sending gratious arp events off */
212 TALLOC_CTX *takeover_ctx;
214 struct ctdb_kill_tcp *killtcp;
218 state associated with one node
221 struct ctdb_context *ctdb;
222 struct ctdb_address address;
223 const char *name; /* for debug messages */
224 void *private_data; /* private to transport */
228 /* used by the dead node monitoring */
233 /* used to track node capabilities, is only valid/tracked inside the
236 uint32_t capabilities;
238 /* a list of controls pending to this node, so we can time them out quickly
239 if the node becomes disconnected */
240 struct daemon_control_state *pending_controls;
242 /* used by the recovery daemon when distributing ip addresses
243 across the nodes. it needs to know which public ip's can be handled
246 struct ctdb_all_public_ips *known_public_ips;
247 struct ctdb_all_public_ips *available_public_ips;
248 /* used by the recovery dameon to track when a node should be banned */
249 struct ctdb_banning_state *ban_state;
253 transport specific methods
255 struct ctdb_methods {
256 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
257 int (*start)(struct ctdb_context *); /* start the transport */
258 int (*add_node)(struct ctdb_node *); /* setup a new node */
259 int (*connect_node)(struct ctdb_node *); /* connect to node */
260 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
261 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
262 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
263 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
267 transport calls up to the ctdb layer
269 struct ctdb_upcalls {
270 /* recv_pkt is called when a packet comes in */
271 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
273 /* node_dead is called when an attempt to send to a node fails */
274 void (*node_dead)(struct ctdb_node *);
276 /* node_connected is called when a connection to a node is established */
277 void (*node_connected)(struct ctdb_node *);
280 /* list of message handlers - needs to be changed to a more efficient data
281 structure so we can find a message handler given a srvid quickly */
282 struct ctdb_message_list {
283 struct ctdb_context *ctdb;
284 struct ctdb_message_list *next, *prev;
286 ctdb_msg_fn_t message_handler;
287 void *message_private;
290 /* additional data required for the daemon mode */
291 struct ctdb_daemon_data {
294 struct ctdb_queue *queue;
298 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
300 if (value > ctdb->statistics.counter) { \
301 ctdb->statistics.counter = c->hopcount; \
303 if (value > ctdb->statistics_current.counter) { \
304 ctdb->statistics_current.counter = c->hopcount; \
308 #define CTDB_INCREMENT_STAT(ctdb, counter) \
310 ctdb->statistics.counter++; \
311 ctdb->statistics_current.counter++; \
314 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
316 ctdb_db->statistics.counter++; \
319 #define CTDB_DECREMENT_STAT(ctdb, counter) \
321 if (ctdb->statistics.counter > 0) \
322 ctdb->statistics.counter--; \
323 if (ctdb->statistics_current.counter > 0) \
324 ctdb->statistics_current.counter--; \
327 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
329 if (value > ctdb->statistics.counter.max) \
330 ctdb->statistics.counter.max = value; \
331 if (value > ctdb->statistics_current.counter.max) \
332 ctdb->statistics_current.counter.max = value; \
334 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
335 ctdb->statistics.counter.min = value; \
336 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
337 ctdb->statistics_current.counter.min = value; \
339 ctdb->statistics.counter.total += value; \
340 ctdb->statistics_current.counter.total += value; \
342 ctdb->statistics.counter.num++; \
343 ctdb->statistics_current.counter.num++; \
345 if (ctdb->tunable.reclock_latency_ms != 0) { \
346 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
347 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
353 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
355 double l = timeval_elapsed(&t); \
357 if (l > ctdb->statistics.counter.max) \
358 ctdb->statistics.counter.max = l; \
359 if (l > ctdb->statistics_current.counter.max) \
360 ctdb->statistics_current.counter.max = l; \
362 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
363 ctdb->statistics.counter.min = l; \
364 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
365 ctdb->statistics_current.counter.min = l; \
367 ctdb->statistics.counter.total += l; \
368 ctdb->statistics_current.counter.total += l; \
370 ctdb->statistics.counter.num++; \
371 ctdb->statistics_current.counter.num++; \
373 if (ctdb->tunable.log_latency_ms !=0) { \
374 if (l*1000 > ctdb->tunable.log_latency_ms) { \
375 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
382 /* a structure that contains the elements required for the write record
385 struct ctdb_write_record {
389 unsigned char blob[1];
392 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
394 #define CTDB_MONITORING_ACTIVE 0
395 #define CTDB_MONITORING_DISABLED 1
397 #define NUM_DB_PRIORITIES 3
398 /* main state of the ctdb daemon */
399 struct ctdb_context {
400 struct tevent_context *ev;
401 struct timeval ctdbd_start_time;
402 struct timeval last_recovery_started;
403 struct timeval last_recovery_finished;
404 uint32_t recovery_mode;
405 TALLOC_CTX *tickle_update_context;
406 TALLOC_CTX *keepalive_ctx;
407 TALLOC_CTX *check_public_ifaces_ctx;
408 struct ctdb_tunable tunable;
409 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
410 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
411 bool freeze_transaction_started;
412 uint32_t freeze_transaction_id;
413 struct ctdb_address address;
415 const char *db_directory;
416 const char *db_directory_persistent;
417 const char *db_directory_state;
418 struct tdb_wrap *db_persistent_health;
419 uint32_t db_persistent_startup_generation;
420 uint64_t db_persistent_check_errors;
421 uint64_t max_persistent_check_errors;
422 const char *transport;
423 char *recovery_lock_file;
424 int recovery_lock_fd;
425 uint32_t pnn; /* our own pnn */
427 uint32_t num_connected;
429 uint32_t capabilities;
430 struct idr_context *idr;
432 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
433 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
434 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
435 struct ctdb_iface *ifaces; /* list of local interfaces */
437 const struct ctdb_methods *methods; /* transport methods */
438 const struct ctdb_upcalls *upcalls; /* transport upcalls */
439 void *private_data; /* private to transport */
440 struct ctdb_db_context *db_list;
441 struct ctdb_message_list *message_list;
442 struct ctdb_daemon_data daemon;
443 struct ctdb_statistics statistics;
444 struct ctdb_statistics statistics_current;
445 #define MAX_STAT_HISTORY 100
446 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
447 struct ctdb_vnn_map *vnn_map;
448 uint32_t num_clients;
449 uint32_t recovery_master;
450 struct ctdb_call_state *pending_calls;
451 struct ctdb_client_ip *client_ip_list;
452 bool do_checkpublicip;
453 struct trbt_tree *server_ids;
455 void *saved_scheduler_param;
456 const char *event_script_dir;
457 const char *debug_hung_script;
458 const char *notification_script;
459 const char *default_public_interface;
465 struct ctdb_monitor_state *monitor;
466 struct ctdb_log_state *log;
467 int start_as_disabled;
468 int start_as_stopped;
470 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
471 uint32_t *recd_ping_count;
472 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
474 TALLOC_CTX *event_script_ctx;
476 struct ctdb_event_script_state *current_monitor;
477 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
479 TALLOC_CTX *banning_ctx;
481 struct ctdb_vacuum_child_context *vacuumers;
483 /* mapping from pid to ctdb_client * */
484 struct ctdb_client_pid_list *client_pids;
486 /* used in the recovery daemon to remember the ip allocation */
487 struct trbt_tree *ip_tree;
489 /* Used to defer db attach requests while in recovery mode */
490 struct ctdb_deferred_attach_context *deferred_attach;
492 /* if we are a child process, do we have a domain socket to send controls on */
493 bool can_send_controls;
495 /* list of event script callback functions that are active */
496 struct event_script_callback *script_callbacks;
498 struct ctdb_reloadips_handle *reload_ips;
500 const char *public_addresses_file;
501 struct trbt_tree *child_processes;
502 TALLOC_CTX *debug_hung_script_ctx;
505 struct ctdb_db_context {
506 struct ctdb_db_context *next, *prev;
507 struct ctdb_context *ctdb;
511 bool readonly; /* Do we support read-only delegations ? */
512 bool sticky; /* Do we support sticky records ? */
515 struct tdb_wrap *ltdb;
516 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
517 struct ctdb_registered_call *calls; /* list of registered calls */
519 struct timed_event *seqnum_update;
520 struct ctdb_traverse_local_handle *traverse;
521 bool transaction_active;
522 struct ctdb_vacuum_handle *vacuum_handle;
523 char *unhealthy_reason;
524 int pending_requests;
525 struct lockwait_handle *lockwait_active;
526 struct lockwait_handle *lockwait_overflow;
527 struct revokechild_handle *revokechild_active;
528 struct ctdb_persistent_state *persistent_state;
529 struct trbt_tree *delete_queue;
530 struct trbt_tree *sticky_records;
531 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
533 struct ctdb_ltdb_header *header,
536 /* used to track which records we are currently fetching
537 so we can avoid sending duplicate fetch requests
539 struct trbt_tree *deferred_fetch;
541 struct ctdb_db_statistics statistics;
545 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
546 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
547 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
548 return -1; }} while (0)
550 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
551 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
552 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
555 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
556 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
557 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
558 return NULL; }} while (0)
560 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
561 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
562 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
566 structure passed in set_call control
568 struct ctdb_control_set_call {
575 struct for kill_tcp control
577 struct ctdb_control_killtcp {
578 ctdb_sock_addr src_addr;
579 ctdb_sock_addr dst_addr;
583 struct holding a ctdb_sock_addr and an interface name,
584 used to add/remove public addresses
586 struct ctdb_control_ip_iface {
594 struct holding a ctdb_sock_addr and an interface name,
595 used for send_gratious_arp
597 struct ctdb_control_gratious_arp {
605 persistent store control - update this record on all other nodes
607 struct ctdb_control_persistent_store {
614 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
616 struct ctdb_node_flag_change {
623 struct for admin setting a ban
625 struct ctdb_ban_info {
630 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
632 #define CTDB_LMASTER_ANY 0xffffffff
635 state of a in-progress ctdb call
637 struct ctdb_call_state {
638 struct ctdb_call_state *next, *prev;
639 enum call_state state;
641 struct ctdb_req_call *c;
642 struct ctdb_db_context *ctdb_db;
644 struct ctdb_call *call;
647 void (*fn)(struct ctdb_call_state *);
653 /* used for fetch_lock */
654 struct ctdb_fetch_handle {
655 struct ctdb_db_context *ctdb_db;
658 struct ctdb_ltdb_header header;
661 /* internal prototypes */
662 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
663 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
664 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
665 int ctdb_parse_address(struct ctdb_context *ctdb,
666 TALLOC_CTX *mem_ctx, const char *str,
667 struct ctdb_address *address);
668 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
669 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
670 uint32_t ctdb_hash(const TDB_DATA *key);
671 uint32_t ctdb_hash_string(const char *str);
672 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
673 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
674 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
675 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
676 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
677 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
679 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
680 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
681 TDB_DATA key, struct ctdb_ltdb_header *header,
682 TALLOC_CTX *mem_ctx, TDB_DATA *data);
683 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
684 struct ctdb_ltdb_header *header, TDB_DATA data);
685 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
686 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
687 TDB_DATA key, struct ctdb_ltdb_header *header,
688 TALLOC_CTX *mem_ctx, TDB_DATA *data);
689 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
690 struct ctdb_req_control *c,
692 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
693 struct ctdb_req_control *c,
695 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
696 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
697 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
698 TDB_DATA key, struct ctdb_req_header *hdr,
699 void (*recv_pkt)(void *, struct ctdb_req_header *),
700 void *recv_context, bool ignore_generation);
701 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
702 TDB_DATA key, struct ctdb_ltdb_header *header,
703 struct ctdb_req_header *hdr, TDB_DATA *data,
704 void (*recv_pkt)(void *, struct ctdb_req_header *),
705 void *recv_context, bool ignore_generation);
706 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
708 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
709 struct ctdb_call *call,
710 struct ctdb_ltdb_header *header,
714 int ctdbd_start(struct ctdb_context *ctdb);
715 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
716 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
719 queue a packet for sending
721 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
724 setup the fd used by the queue
726 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
729 setup a packet queue on a socket
731 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
732 TALLOC_CTX *mem_ctx, int fd, int alignment,
734 ctdb_queue_cb_fn_t callback,
735 void *private_data, const char *fmt, ...)
736 PRINTF_ATTRIBUTE(7,8);
739 allocate a packet for use in client<->daemon communication
741 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
743 enum ctdb_operation operation,
744 size_t length, size_t slength,
746 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
747 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
749 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
751 enum ctdb_operation operation,
752 size_t length, size_t slength,
754 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
755 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
757 int ctdb_queue_length(struct ctdb_queue *queue);
760 lock a record in the ltdb, given a key
762 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
765 unlock a record in the ltdb, given a key
767 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
771 make a ctdb call to the local daemon - async send. Called from client context.
773 This constructs a ctdb_call request and queues it for processing.
774 This call never blocks.
776 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
777 struct ctdb_call *call);
780 make a recv call to the local ctdb daemon - called from client context
782 This is called when the program wants to wait for a ctdb_call to complete and get the
783 results. This call will block unless the call has already completed.
785 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
787 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
788 uint64_t srvid, TDB_DATA data);
793 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
794 uint64_t srvid, TDB_DATA data);
797 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
799 void (*callback)(void *), void *private_data);
801 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
802 struct ctdb_call *call);
804 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
806 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
807 struct ctdb_call *call,
808 struct ctdb_ltdb_header *header);
810 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
811 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
812 TDB_DATA *data, bool updatetdb, uint32_t caller);
814 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
816 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
818 int ctdb_socket_connect(struct ctdb_context *ctdb);
819 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
821 #define CTDB_BAD_REQID ((uint32_t)-1)
822 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
823 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
824 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
826 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
827 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
829 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
830 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
832 ctdb_control_callback_fn_t callback,
835 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
836 TDB_DATA *outdata, uint64_t tdb_flags,
837 bool persistent, uint32_t client_id,
838 struct ctdb_req_control *c,
841 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
842 ctdb_fn_t fn, int id);
844 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
845 uint32_t opcode, uint32_t flags, TDB_DATA data,
846 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
847 struct timeval *timeout, char **errormsg);
848 int ctdb_control_recv(struct ctdb_context *ctdb,
849 struct ctdb_client_control_state *state,
851 TDB_DATA *outdata, int32_t *status, char **errormsg);
853 struct ctdb_client_control_state *
854 ctdb_control_send(struct ctdb_context *ctdb,
855 uint32_t destnode, uint64_t srvid,
856 uint32_t opcode, uint32_t flags, TDB_DATA data,
858 struct timeval *timeout,
864 #define CHECK_CONTROL_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 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
873 if (indata.dsize < size) { \
874 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
875 opcode, (unsigned)indata.dsize, (unsigned)size)); \
880 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
881 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
882 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
883 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
884 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
885 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
888 /* structure used for pulldb control */
889 struct ctdb_control_pulldb {
894 /* structure used for sending lists of records */
895 struct ctdb_marshall_buffer {
901 /* set dmaster control structure */
902 struct ctdb_control_set_dmaster {
908 structure for setting a tunable
910 struct ctdb_control_set_tunable {
917 structure for getting a tunable
919 struct ctdb_control_get_tunable {
925 structure for listing tunables
927 struct ctdb_control_list_tunable {
929 /* returns a : separated list of tunable names */
934 struct ctdb_node_and_flagsv4 {
937 struct sockaddr_in sin;
940 struct ctdb_node_mapv4 {
942 struct ctdb_node_and_flagsv4 nodes[1];
945 struct ctdb_control_wipe_database {
947 uint32_t transaction_id;
951 state of a in-progress ctdb call in client
953 struct ctdb_client_call_state {
954 enum call_state state;
956 struct ctdb_db_context *ctdb_db;
957 struct ctdb_call *call;
959 void (*fn)(struct ctdb_client_call_state *);
965 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
970 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
971 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
972 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
973 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
974 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
975 TDB_DATA *outdata, uint32_t srcnode);
977 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
979 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
980 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
981 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
982 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
985 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
986 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
988 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
989 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
991 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
993 struct ctdb_ltdb_header *header,
994 TDB_DATA *key, TDB_DATA *data);
996 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
997 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
998 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1000 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1001 struct ctdb_req_control *c,
1002 TDB_DATA indata, bool *async_reply,
1003 const char **errormsg);
1004 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1005 TDB_DATA *outdata, int32_t status, const char *errormsg);
1007 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1008 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1010 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1011 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1013 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1015 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1016 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1017 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1018 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1019 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1020 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1021 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1022 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1023 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1026 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1027 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1028 void ctdb_node_dead(struct ctdb_node *node);
1029 void ctdb_node_connected(struct ctdb_node *node);
1030 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1031 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1032 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1034 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1035 pid_t ctdb_fork(struct ctdb_context *ctdb);
1036 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1038 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1039 struct ctdb_req_control *c,
1042 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1043 struct ctdb_req_control *c,
1046 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1047 struct ctdb_req_control *c,
1050 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1051 struct ctdb_req_control *c,
1054 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1055 struct ctdb_req_control *c,
1057 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1058 struct ctdb_req_control *c,
1061 struct ctdb_public_ipv4 {
1063 struct sockaddr_in sin;
1066 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1067 uint32_t destnode, struct ctdb_public_ip *ip);
1068 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1069 uint32_t destnode, struct ctdb_public_ip *ip);
1071 struct ctdb_all_public_ipsv4 {
1073 struct ctdb_public_ipv4 ips[1];
1076 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1077 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1078 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1079 struct timeval timeout,
1081 TALLOC_CTX *mem_ctx,
1082 struct ctdb_all_public_ips **ips);
1083 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1084 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1085 struct timeval timeout, uint32_t destnode,
1086 TALLOC_CTX *mem_ctx,
1088 struct ctdb_all_public_ips **ips);
1089 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1090 struct timeval timeout, uint32_t destnode,
1091 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1093 struct ctdb_control_iface_info {
1094 char name[CTDB_IFACE_SIZE+2];
1095 uint16_t link_state;
1096 uint32_t references;
1099 struct ctdb_control_public_ip_info {
1100 struct ctdb_public_ip ip;
1101 uint32_t active_idx;
1103 struct ctdb_control_iface_info ifaces[1];
1106 struct ctdb_control_get_ifaces {
1108 struct ctdb_control_iface_info ifaces[1];
1111 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1112 struct ctdb_req_control *c,
1115 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1116 struct ctdb_req_control *c,
1118 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1119 struct ctdb_req_control *c,
1121 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1122 struct timeval timeout, uint32_t destnode,
1123 TALLOC_CTX *mem_ctx,
1124 const ctdb_sock_addr *addr,
1125 struct ctdb_control_public_ip_info **info);
1126 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1127 struct timeval timeout, uint32_t destnode,
1128 TALLOC_CTX *mem_ctx,
1129 struct ctdb_control_get_ifaces **ifaces);
1130 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1131 struct timeval timeout, uint32_t destnode,
1132 TALLOC_CTX *mem_ctx,
1133 const struct ctdb_control_iface_info *info);
1135 /* from takeover/system.c */
1136 uint32_t uint16_checksum(uint16_t *data, size_t n);
1137 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1138 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1139 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1140 bool ctdb_sys_check_iface_exists(const char *iface);
1141 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1142 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1143 const ctdb_sock_addr *src,
1144 uint32_t seq, uint32_t ack, int rst);
1146 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1147 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1150 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1151 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1152 int ctdb_set_debug_hung_script(struct ctdb_context *ctdb, const char *script);
1153 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1154 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1155 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1157 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1159 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1160 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1161 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1162 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1163 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1164 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1165 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1167 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1168 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1169 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1170 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1171 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1172 TALLOC_CTX *mem_ctx,
1173 void (*callback)(struct ctdb_context *, int, void *),
1176 enum ctdb_eventscript_call call,
1177 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1178 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1180 void set_nonblocking(int fd);
1181 void set_close_on_exec(int fd);
1183 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1185 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1187 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1189 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1190 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1191 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1192 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1193 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1195 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1197 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1199 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1200 struct timeval timeout,
1202 struct ctdb_tunable *tunables);
1204 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1206 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1207 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1208 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1209 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1212 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1213 int ctdb_sys_close_capture_socket(void *private_data);
1214 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);
1216 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1217 struct timeval timeout,
1219 struct ctdb_control_killtcp *killtcp);
1221 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1222 struct timeval timeout,
1224 struct ctdb_control_ip_iface *pub);
1226 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1227 struct timeval timeout,
1229 struct ctdb_control_ip_iface *pub);
1231 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1232 struct timeval timeout,
1234 ctdb_sock_addr *addr,
1235 const char *ifname);
1237 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1238 struct timeval timeout,
1240 TALLOC_CTX *mem_ctx,
1241 ctdb_sock_addr *addr,
1242 struct ctdb_control_tcp_tickle_list **list);
1245 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1248 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1250 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1252 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1254 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1257 int ctdb_attach_databases(struct ctdb_context *ctdb);
1259 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1260 struct ctdb_req_control *c,
1261 TDB_DATA recdata, bool *async_reply);
1262 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1263 struct ctdb_req_control *c, TDB_DATA recdata,
1265 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1266 struct ctdb_req_control *c,
1267 TDB_DATA recdata, bool *async_reply);
1269 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1270 struct ctdb_req_control *c,
1271 TDB_DATA recdata, bool *async_reply);
1273 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1275 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1276 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1277 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1278 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1279 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1280 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1285 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1286 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1288 void ctdb_block_signal(int signum);
1289 void ctdb_unblock_signal(int signum);
1290 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1291 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1292 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1294 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1296 struct client_async_data {
1297 enum ctdb_controls opcode;
1298 bool dont_log_errors;
1300 uint32_t fail_count;
1301 client_async_callback callback;
1302 client_async_callback fail_callback;
1303 void *callback_data;
1305 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1306 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1307 int ctdb_client_async_control(struct ctdb_context *ctdb,
1308 enum ctdb_controls opcode,
1311 struct timeval timeout,
1312 bool dont_log_errors,
1314 client_async_callback client_callback,
1315 client_async_callback fail_callback,
1316 void *callback_data);
1318 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1320 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1322 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1323 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1325 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1326 struct ctdb_req_control *c);
1327 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1328 struct ctdb_req_control *c);
1329 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1330 struct ctdb_req_control *c,
1333 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1334 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1335 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1337 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1338 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1340 extern int script_log_level;
1341 extern bool fast_start;
1343 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1347 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1348 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1350 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1351 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1353 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1354 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1356 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1357 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1359 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1360 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1361 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1362 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1363 void ctdb_ban_self(struct ctdb_context *ctdb);
1365 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1367 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1369 int start_syslog_daemon(struct ctdb_context *ctdb);
1371 /* Where to send the log messages back to */
1372 struct ctdb_get_log_addr {
1378 extern int log_ringbuf_size;
1380 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1381 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1384 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1385 struct ctdb_context *ctdb,
1386 const char *log_prefix,
1387 void (*logfn)(const char *, uint16_t, void *),
1388 void *logfn_private, pid_t *pid);
1390 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1391 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1393 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1397 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1398 struct ctdb_db_context *ctdb_db);
1399 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1400 struct ctdb_db_context *ctdb_db,
1401 const char *reason,/* NULL means healthy */
1402 int num_healthy_nodes);
1403 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1405 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1407 void ctdb_fault_setup(void);
1409 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1410 struct ctdb_all_public_ips *ips);
1411 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1412 struct ctdb_public_ip *ip);
1414 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1416 int ctdb_statistics_init(struct ctdb_context *ctdb);
1418 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1419 struct ctdb_req_control *c,
1422 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1424 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1427 * structure to pass to a schedule_for_deletion_control
1429 struct ctdb_control_schedule_for_deletion {
1431 struct ctdb_ltdb_header hdr;
1433 uint8_t key[1]; /* key[] */
1436 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1440 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1441 const struct ctdb_ltdb_header *hdr,
1444 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1445 const struct ctdb_ltdb_header *hdr,
1446 const TDB_DATA key);
1448 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1450 /* For unit testing ctdb_transaction.c. */
1451 struct ctdb_public_ip_list {
1452 struct ctdb_public_ip_list *next;
1454 ctdb_sock_addr addr;
1456 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1458 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1460 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1462 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);
1464 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1466 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);
1468 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1470 int ctdb_null_func(struct ctdb_call_info *call);
1472 int ctdb_fetch_func(struct ctdb_call_info *call);
1474 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1476 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1480 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1483 description for a message to reload all ips via recovery master/daemon
1485 struct reloadips_all_reply {
1490 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1492 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);