4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_interval;
112 uint32_t vacuum_default_interval;
113 uint32_t vacuum_max_run_time;
114 uint32_t repack_limit;
115 uint32_t vacuum_limit;
116 uint32_t vacuum_min_interval;
117 uint32_t vacuum_max_interval;
118 uint32_t max_queue_depth_drop_msg;
119 uint32_t use_status_events_for_monitoring;
120 uint32_t allow_unhealthy_db_read;
121 uint32_t stat_history_interval;
122 uint32_t deferred_attach_timeout;
123 uint32_t vacuum_fast_path_count;
124 uint32_t lcp2_public_ip_assignment;
125 uint32_t allow_client_db_attach;
126 uint32_t recover_pdb_by_seqnum;
127 uint32_t deferred_rebalance_on_node_add;
128 uint32_t fetch_collapse;
129 uint32_t max_lacount;
130 uint32_t hopcount_make_sticky;
131 uint32_t sticky_duration;
132 uint32_t sticky_pindown;
133 uint32_t no_ip_takeover;
134 uint32_t db_record_count_warn;
135 uint32_t db_record_size_warn;
136 uint32_t db_size_warn;
137 uint32_t pulldb_preallocation_size;
138 uint32_t no_ip_takeover_on_disabled;
139 uint32_t deadlock_timeout;
143 an installed ctdb remote call
145 struct ctdb_registered_call {
146 struct ctdb_registered_call *next, *prev;
152 this address structure might need to be generalised later for some
155 struct ctdb_address {
161 check that a pnn is valid
163 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
166 /* called from the queue code when a packet comes in. Called with data==NULL
168 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
171 /* used for callbacks in ctdb_control requests */
172 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
173 int32_t status, TDB_DATA data,
174 const char *errormsg,
177 structure describing a connected client in the daemon
180 struct ctdb_context *ctdb;
182 struct ctdb_queue *queue;
185 struct ctdb_tcp_list *tcp_list;
187 uint32_t num_persistent_updates;
188 struct ctdb_client_notify_list *notify;
193 /* state associated with a public ip address */
195 struct ctdb_vnn *prev, *next;
197 struct ctdb_iface *iface;
199 ctdb_sock_addr public_address;
200 uint8_t public_netmask_bits;
202 /* the node number that is serving this public address, if any.
203 If no node serves this ip it is set to -1 */
206 /* List of clients to tickle for this public address */
207 struct ctdb_tcp_array *tcp_array;
209 /* whether we need to update the other nodes with changes to our list
210 of connected clients */
211 bool tcp_update_needed;
213 /* a context to hang sending gratious arp events off */
214 TALLOC_CTX *takeover_ctx;
216 struct ctdb_kill_tcp *killtcp;
218 /* Set to true any time an update to this VNN is in flight.
219 This helps to avoid races. */
220 bool update_in_flight;
224 state associated with one node
227 struct ctdb_context *ctdb;
228 struct ctdb_address address;
229 const char *name; /* for debug messages */
230 void *private_data; /* private to transport */
234 /* used by the dead node monitoring */
239 /* used to track node capabilities, is only valid/tracked inside the
242 uint32_t capabilities;
244 /* a list of controls pending to this node, so we can time them out quickly
245 if the node becomes disconnected */
246 struct daemon_control_state *pending_controls;
248 /* used by the recovery daemon when distributing ip addresses
249 across the nodes. it needs to know which public ip's can be handled
252 struct ctdb_all_public_ips *known_public_ips;
253 struct ctdb_all_public_ips *available_public_ips;
254 /* used by the recovery dameon to track when a node should be banned */
255 struct ctdb_banning_state *ban_state;
259 transport specific methods
261 struct ctdb_methods {
262 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
263 int (*start)(struct ctdb_context *); /* start the transport */
264 int (*add_node)(struct ctdb_node *); /* setup a new node */
265 int (*connect_node)(struct ctdb_node *); /* connect to node */
266 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
267 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
268 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
269 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
273 transport calls up to the ctdb layer
275 struct ctdb_upcalls {
276 /* recv_pkt is called when a packet comes in */
277 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
279 /* node_dead is called when an attempt to send to a node fails */
280 void (*node_dead)(struct ctdb_node *);
282 /* node_connected is called when a connection to a node is established */
283 void (*node_connected)(struct ctdb_node *);
286 /* list of message handlers - needs to be changed to a more efficient data
287 structure so we can find a message handler given a srvid quickly */
288 struct ctdb_message_list {
289 struct ctdb_context *ctdb;
290 struct ctdb_message_list *next, *prev;
292 ctdb_msg_fn_t message_handler;
293 void *message_private;
296 /* additional data required for the daemon mode */
297 struct ctdb_daemon_data {
300 struct ctdb_queue *queue;
304 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
306 if (value > ctdb->statistics.counter) { \
307 ctdb->statistics.counter = c->hopcount; \
309 if (value > ctdb->statistics_current.counter) { \
310 ctdb->statistics_current.counter = c->hopcount; \
314 #define CTDB_INCREMENT_STAT(ctdb, counter) \
316 ctdb->statistics.counter++; \
317 ctdb->statistics_current.counter++; \
320 #define CTDB_DECREMENT_STAT(ctdb, counter) \
322 if (ctdb->statistics.counter > 0) \
323 ctdb->statistics.counter--; \
324 if (ctdb->statistics_current.counter > 0) \
325 ctdb->statistics_current.counter--; \
328 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
330 ctdb_db->statistics.counter++; \
333 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
335 if (ctdb_db->statistics.counter > 0) \
336 ctdb_db->statistics.counter--; \
339 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
341 if (value > ctdb->statistics.counter.max) \
342 ctdb->statistics.counter.max = value; \
343 if (value > ctdb->statistics_current.counter.max) \
344 ctdb->statistics_current.counter.max = value; \
346 if (ctdb->statistics.counter.num == 0 || \
347 value < ctdb->statistics.counter.min) \
348 ctdb->statistics.counter.min = value; \
349 if (ctdb->statistics_current.counter.num == 0 || \
350 value < ctdb->statistics_current.counter.min) \
351 ctdb->statistics_current.counter.min = value; \
353 ctdb->statistics.counter.total += value; \
354 ctdb->statistics_current.counter.total += value; \
356 ctdb->statistics.counter.num++; \
357 ctdb->statistics_current.counter.num++; \
359 if (ctdb->tunable.reclock_latency_ms != 0) { \
360 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
362 ("High RECLOCK latency %fs for operation %s\n", \
368 #define CTDB_UPDATE_DB_RECLOCK_LATENCY(ctdb_db, name, counter, value) \
370 if (value > ctdb_db->statistics.counter.max) \
371 ctdb_db->statistics.counter.max = value; \
372 if (ctdb_db->statistics.counter.num == 0 || \
373 value < ctdb_db->statistics.counter.min) \
374 ctdb_db->statistics.counter.min = value; \
376 ctdb_db->statistics.counter.total += value; \
377 ctdb_db->statistics.counter.num++; \
379 if (ctdb_db->ctdb->tunable.reclock_latency_ms != 0) { \
380 if (value*1000 > ctdb_db->ctdb->tunable.reclock_latency_ms) { \
382 ("High RECLOCK latency %fs for operation %s\n", \
388 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
390 double l = timeval_elapsed(&t); \
392 if (l > ctdb->statistics.counter.max) \
393 ctdb->statistics.counter.max = l; \
394 if (l > ctdb->statistics_current.counter.max) \
395 ctdb->statistics_current.counter.max = l; \
397 if (ctdb->statistics.counter.num == 0 || \
398 l < ctdb->statistics.counter.min) \
399 ctdb->statistics.counter.min = l; \
400 if (ctdb->statistics_current.counter.num == 0 || \
401 l < ctdb->statistics_current.counter.min) \
402 ctdb->statistics_current.counter.min = l; \
404 ctdb->statistics.counter.total += l; \
405 ctdb->statistics_current.counter.total += l; \
407 ctdb->statistics.counter.num++; \
408 ctdb->statistics_current.counter.num++; \
410 if (ctdb->tunable.log_latency_ms != 0) { \
411 if (l*1000 > ctdb->tunable.log_latency_ms) { \
412 DEBUG(DEBUG_WARNING, \
413 ("High latency %.6fs for operation %s on database %s\n",\
414 l, operation, db->db_name)); \
421 /* a structure that contains the elements required for the write record
424 struct ctdb_write_record {
428 unsigned char blob[1];
431 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
433 #define CTDB_MONITORING_ACTIVE 0
434 #define CTDB_MONITORING_DISABLED 1
436 #define NUM_DB_PRIORITIES 3
437 /* main state of the ctdb daemon */
438 struct ctdb_context {
439 struct tevent_context *ev;
440 struct timeval ctdbd_start_time;
441 struct timeval last_recovery_started;
442 struct timeval last_recovery_finished;
443 uint32_t recovery_mode;
444 TALLOC_CTX *tickle_update_context;
445 TALLOC_CTX *keepalive_ctx;
446 TALLOC_CTX *check_public_ifaces_ctx;
447 struct ctdb_tunable tunable;
448 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
449 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
450 bool freeze_transaction_started;
451 uint32_t freeze_transaction_id;
452 struct ctdb_address address;
454 const char *db_directory;
455 const char *db_directory_persistent;
456 const char *db_directory_state;
457 struct tdb_wrap *db_persistent_health;
458 uint32_t db_persistent_startup_generation;
459 uint64_t db_persistent_check_errors;
460 uint64_t max_persistent_check_errors;
461 const char *transport;
462 char *recovery_lock_file;
463 int recovery_lock_fd;
464 uint32_t pnn; /* our own pnn */
466 uint32_t num_connected;
468 uint32_t capabilities;
469 struct idr_context *idr;
471 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
472 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
473 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
474 struct ctdb_iface *ifaces; /* list of local interfaces */
476 const struct ctdb_methods *methods; /* transport methods */
477 const struct ctdb_upcalls *upcalls; /* transport upcalls */
478 void *private_data; /* private to transport */
479 struct ctdb_db_context *db_list;
480 struct ctdb_message_list *message_list;
481 struct ctdb_daemon_data daemon;
482 struct ctdb_statistics statistics;
483 struct ctdb_statistics statistics_current;
484 #define MAX_STAT_HISTORY 100
485 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
486 struct ctdb_vnn_map *vnn_map;
487 uint32_t num_clients;
488 uint32_t recovery_master;
489 struct ctdb_call_state *pending_calls;
490 struct ctdb_client_ip *client_ip_list;
491 bool do_checkpublicip;
492 struct trbt_tree *server_ids;
494 void *saved_scheduler_param;
495 const char *event_script_dir;
496 const char *debug_hung_script;
497 const char *notification_script;
498 const char *default_public_interface;
504 struct ctdb_monitor_state *monitor;
505 struct ctdb_log_state *log;
506 int start_as_disabled;
507 int start_as_stopped;
509 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
510 uint32_t *recd_ping_count;
511 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
513 TALLOC_CTX *event_script_ctx;
515 struct ctdb_event_script_state *current_monitor;
516 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
518 TALLOC_CTX *banning_ctx;
520 struct ctdb_vacuum_child_context *vacuumers;
522 /* mapping from pid to ctdb_client * */
523 struct ctdb_client_pid_list *client_pids;
525 /* used in the recovery daemon to remember the ip allocation */
526 struct trbt_tree *ip_tree;
528 /* Used to defer db attach requests while in recovery mode */
529 struct ctdb_deferred_attach_context *deferred_attach;
531 /* if we are a child process, do we have a domain socket to send controls on */
532 bool can_send_controls;
534 /* list of event script callback functions that are active */
535 struct event_script_callback *script_callbacks;
537 struct ctdb_reloadips_handle *reload_ips;
539 const char *public_addresses_file;
540 struct trbt_tree *child_processes;
541 TALLOC_CTX *debug_hung_script_ctx;
543 /* Used for locking record/db/alldb */
544 int lock_num_current;
545 int lock_num_pending;
546 struct lock_context *lock_current;
547 struct lock_context *lock_pending;
550 struct ctdb_db_context {
551 struct ctdb_db_context *next, *prev;
552 struct ctdb_context *ctdb;
556 bool readonly; /* Do we support read-only delegations ? */
557 bool sticky; /* Do we support sticky records ? */
560 struct tdb_wrap *ltdb;
561 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
562 struct ctdb_registered_call *calls; /* list of registered calls */
564 struct timed_event *seqnum_update;
565 struct ctdb_traverse_local_handle *traverse;
566 bool transaction_active;
567 struct ctdb_vacuum_handle *vacuum_handle;
568 char *unhealthy_reason;
569 int pending_requests;
570 struct lockwait_handle *lockwait_active;
571 struct lockwait_handle *lockwait_overflow;
572 struct revokechild_handle *revokechild_active;
573 struct ctdb_persistent_state *persistent_state;
574 struct trbt_tree *delete_queue;
575 struct trbt_tree *sticky_records;
576 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
578 struct ctdb_ltdb_header *header,
581 /* used to track which records we are currently fetching
582 so we can avoid sending duplicate fetch requests
584 struct trbt_tree *deferred_fetch;
586 struct ctdb_db_statistics statistics;
590 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
591 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
592 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
593 return -1; }} while (0)
595 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
596 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
597 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
600 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
601 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
602 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
603 return NULL; }} while (0)
605 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
606 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
607 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
611 structure passed in set_call control
613 struct ctdb_control_set_call {
620 struct for kill_tcp control
622 struct ctdb_control_killtcp {
623 ctdb_sock_addr src_addr;
624 ctdb_sock_addr dst_addr;
628 struct holding a ctdb_sock_addr and an interface name,
629 used to add/remove public addresses
631 struct ctdb_control_ip_iface {
639 struct holding a ctdb_sock_addr and an interface name,
640 used for send_gratious_arp
642 struct ctdb_control_gratious_arp {
650 persistent store control - update this record on all other nodes
652 struct ctdb_control_persistent_store {
659 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
661 struct ctdb_node_flag_change {
668 struct for admin setting a ban
670 struct ctdb_ban_info {
675 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
677 #define CTDB_LMASTER_ANY 0xffffffff
680 state of a in-progress ctdb call
682 struct ctdb_call_state {
683 struct ctdb_call_state *next, *prev;
684 enum call_state state;
686 struct ctdb_req_call *c;
687 struct ctdb_db_context *ctdb_db;
689 struct ctdb_call *call;
692 void (*fn)(struct ctdb_call_state *);
698 /* used for fetch_lock */
699 struct ctdb_fetch_handle {
700 struct ctdb_db_context *ctdb_db;
703 struct ctdb_ltdb_header header;
706 /* internal prototypes */
707 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
708 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
709 void ctdb_external_trace(void);
710 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
711 int ctdb_parse_address(struct ctdb_context *ctdb,
712 TALLOC_CTX *mem_ctx, const char *str,
713 struct ctdb_address *address);
714 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
715 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
716 uint32_t ctdb_hash(const TDB_DATA *key);
717 uint32_t ctdb_hash_string(const char *str);
718 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
719 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
720 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
721 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
722 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
723 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
725 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
726 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
727 TDB_DATA key, struct ctdb_ltdb_header *header,
728 TALLOC_CTX *mem_ctx, TDB_DATA *data);
729 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
730 struct ctdb_ltdb_header *header, TDB_DATA data);
731 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
732 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
733 TDB_DATA key, struct ctdb_ltdb_header *header,
734 TALLOC_CTX *mem_ctx, TDB_DATA *data);
735 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
736 struct ctdb_req_control *c,
738 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
739 struct ctdb_req_control *c,
741 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
742 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
743 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
744 TDB_DATA key, struct ctdb_req_header *hdr,
745 void (*recv_pkt)(void *, struct ctdb_req_header *),
746 void *recv_context, bool ignore_generation);
747 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
748 TDB_DATA key, struct ctdb_ltdb_header *header,
749 struct ctdb_req_header *hdr, TDB_DATA *data,
750 void (*recv_pkt)(void *, struct ctdb_req_header *),
751 void *recv_context, bool ignore_generation);
752 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
754 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
755 struct ctdb_call *call,
756 struct ctdb_ltdb_header *header,
760 int ctdbd_start(struct ctdb_context *ctdb);
761 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
762 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
765 queue a packet for sending
767 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
770 setup the fd used by the queue
772 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
775 setup a packet queue on a socket
777 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
778 TALLOC_CTX *mem_ctx, int fd, int alignment,
780 ctdb_queue_cb_fn_t callback,
781 void *private_data, const char *fmt, ...)
782 PRINTF_ATTRIBUTE(7,8);
785 allocate a packet for use in client<->daemon communication
787 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
789 enum ctdb_operation operation,
790 size_t length, size_t slength,
792 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
793 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
795 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
797 enum ctdb_operation operation,
798 size_t length, size_t slength,
800 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
801 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
803 int ctdb_queue_length(struct ctdb_queue *queue);
806 lock a record in the ltdb, given a key
808 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
811 unlock a record in the ltdb, given a key
813 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
817 make a ctdb call to the local daemon - async send. Called from client context.
819 This constructs a ctdb_call request and queues it for processing.
820 This call never blocks.
822 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
823 struct ctdb_call *call);
826 make a recv call to the local ctdb daemon - called from client context
828 This is called when the program wants to wait for a ctdb_call to complete and get the
829 results. This call will block unless the call has already completed.
831 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
833 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
834 uint64_t srvid, TDB_DATA data);
839 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
840 uint64_t srvid, TDB_DATA data);
843 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
845 void (*callback)(void *), void *private_data);
847 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
848 struct ctdb_call *call);
850 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
852 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
853 struct ctdb_call *call,
854 struct ctdb_ltdb_header *header);
856 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
857 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
858 TDB_DATA *data, bool updatetdb, uint32_t caller);
860 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
862 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
864 int ctdb_socket_connect(struct ctdb_context *ctdb);
865 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
867 #define CTDB_BAD_REQID ((uint32_t)-1)
868 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
869 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
870 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
872 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
873 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
875 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
876 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
878 ctdb_control_callback_fn_t callback,
881 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
882 TDB_DATA *outdata, uint64_t tdb_flags,
883 bool persistent, uint32_t client_id,
884 struct ctdb_req_control *c,
887 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
888 ctdb_fn_t fn, int id);
890 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
891 uint32_t opcode, uint32_t flags, TDB_DATA data,
892 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
893 struct timeval *timeout, char **errormsg);
894 int ctdb_control_recv(struct ctdb_context *ctdb,
895 struct ctdb_client_control_state *state,
897 TDB_DATA *outdata, int32_t *status, char **errormsg);
899 struct ctdb_client_control_state *
900 ctdb_control_send(struct ctdb_context *ctdb,
901 uint32_t destnode, uint64_t srvid,
902 uint32_t opcode, uint32_t flags, TDB_DATA data,
904 struct timeval *timeout,
910 #define CHECK_CONTROL_DATA_SIZE(size) do { \
911 if (indata.dsize != size) { \
912 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
913 opcode, (unsigned)indata.dsize, (unsigned)size)); \
918 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
919 if (indata.dsize < size) { \
920 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
921 opcode, (unsigned)indata.dsize, (unsigned)size)); \
926 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
927 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
928 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
929 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
930 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
931 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
934 /* structure used for pulldb control */
935 struct ctdb_control_pulldb {
940 /* structure used for sending lists of records */
941 struct ctdb_marshall_buffer {
947 /* set dmaster control structure */
948 struct ctdb_control_set_dmaster {
954 structure for setting a tunable
956 struct ctdb_control_set_tunable {
963 structure for getting a tunable
965 struct ctdb_control_get_tunable {
971 structure for listing tunables
973 struct ctdb_control_list_tunable {
975 /* returns a : separated list of tunable names */
980 struct ctdb_node_and_flagsv4 {
983 struct sockaddr_in sin;
986 struct ctdb_node_mapv4 {
988 struct ctdb_node_and_flagsv4 nodes[1];
991 struct ctdb_control_wipe_database {
993 uint32_t transaction_id;
997 state of a in-progress ctdb call in client
999 struct ctdb_client_call_state {
1000 enum call_state state;
1002 struct ctdb_db_context *ctdb_db;
1003 struct ctdb_call *call;
1005 void (*fn)(struct ctdb_client_call_state *);
1011 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1015 uint32_t client_id);
1016 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1017 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1018 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1019 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1020 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1021 TDB_DATA *outdata, uint32_t srcnode);
1023 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1025 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1026 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1027 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1028 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1031 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1032 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1034 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1035 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1037 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1039 struct ctdb_ltdb_header *header,
1040 TDB_DATA *key, TDB_DATA *data);
1042 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1043 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1044 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1046 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1047 struct ctdb_req_control *c,
1048 TDB_DATA indata, bool *async_reply,
1049 const char **errormsg);
1050 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1051 TDB_DATA *outdata, int32_t status, const char *errormsg);
1053 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1054 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1056 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1057 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1059 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1061 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1062 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1063 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1064 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1065 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1066 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1067 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1068 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1069 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1072 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1073 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1074 void ctdb_node_dead(struct ctdb_node *node);
1075 void ctdb_node_connected(struct ctdb_node *node);
1076 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1077 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1078 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1080 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1081 pid_t ctdb_fork(struct ctdb_context *ctdb);
1082 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1084 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1085 struct ctdb_req_control *c,
1088 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1089 struct ctdb_req_control *c,
1092 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1093 struct ctdb_req_control *c,
1096 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1097 struct ctdb_req_control *c,
1100 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1101 struct ctdb_req_control *c,
1103 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1104 struct ctdb_req_control *c,
1107 struct ctdb_public_ipv4 {
1109 struct sockaddr_in sin;
1112 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1113 uint32_t destnode, struct ctdb_public_ip *ip);
1114 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1115 uint32_t destnode, struct ctdb_public_ip *ip);
1117 struct ctdb_all_public_ipsv4 {
1119 struct ctdb_public_ipv4 ips[1];
1122 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1123 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1124 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1125 struct timeval timeout,
1127 TALLOC_CTX *mem_ctx,
1128 struct ctdb_all_public_ips **ips);
1129 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1130 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1131 struct timeval timeout, uint32_t destnode,
1132 TALLOC_CTX *mem_ctx,
1134 struct ctdb_all_public_ips **ips);
1135 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1136 struct timeval timeout, uint32_t destnode,
1137 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1139 struct ctdb_control_iface_info {
1140 char name[CTDB_IFACE_SIZE+2];
1141 uint16_t link_state;
1142 uint32_t references;
1145 struct ctdb_control_public_ip_info {
1146 struct ctdb_public_ip ip;
1147 uint32_t active_idx;
1149 struct ctdb_control_iface_info ifaces[1];
1152 struct ctdb_control_get_ifaces {
1154 struct ctdb_control_iface_info ifaces[1];
1157 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1158 struct ctdb_req_control *c,
1161 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1162 struct ctdb_req_control *c,
1164 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1165 struct ctdb_req_control *c,
1167 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1168 struct timeval timeout, uint32_t destnode,
1169 TALLOC_CTX *mem_ctx,
1170 const ctdb_sock_addr *addr,
1171 struct ctdb_control_public_ip_info **info);
1172 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1173 struct timeval timeout, uint32_t destnode,
1174 TALLOC_CTX *mem_ctx,
1175 struct ctdb_control_get_ifaces **ifaces);
1176 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1177 struct timeval timeout, uint32_t destnode,
1178 TALLOC_CTX *mem_ctx,
1179 const struct ctdb_control_iface_info *info);
1181 /* from takeover/system.c */
1182 uint32_t uint16_checksum(uint16_t *data, size_t n);
1183 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1184 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1185 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1186 bool ctdb_sys_check_iface_exists(const char *iface);
1187 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1188 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1189 const ctdb_sock_addr *src,
1190 uint32_t seq, uint32_t ack, int rst);
1192 /* Details of a byte range lock */
1193 struct ctdb_lock_info {
1200 char *ctdb_get_process_name(pid_t pid);
1201 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1202 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1204 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1205 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1208 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1209 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1210 int ctdb_set_debug_hung_script(struct ctdb_context *ctdb, const char *script);
1211 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1212 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1213 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1215 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1217 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1218 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1219 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1220 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1221 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1222 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1223 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1225 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1226 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1227 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1228 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1229 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1230 TALLOC_CTX *mem_ctx,
1231 void (*callback)(struct ctdb_context *, int, void *),
1234 enum ctdb_eventscript_call call,
1235 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1236 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1238 void set_nonblocking(int fd);
1239 void set_close_on_exec(int fd);
1241 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1243 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1245 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1247 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1248 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1249 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1250 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1251 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1253 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1255 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1257 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1258 struct timeval timeout,
1260 struct ctdb_tunable *tunables);
1262 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1264 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1265 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1266 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1267 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1270 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1271 int ctdb_sys_close_capture_socket(void *private_data);
1272 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);
1274 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1275 struct timeval timeout,
1277 struct ctdb_control_killtcp *killtcp);
1279 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1280 struct timeval timeout,
1282 struct ctdb_control_ip_iface *pub);
1284 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1285 struct timeval timeout,
1287 struct ctdb_control_ip_iface *pub);
1289 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1290 struct timeval timeout,
1292 ctdb_sock_addr *addr,
1293 const char *ifname);
1295 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1296 struct timeval timeout,
1298 TALLOC_CTX *mem_ctx,
1299 ctdb_sock_addr *addr,
1300 struct ctdb_control_tcp_tickle_list **list);
1303 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1306 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1308 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1310 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1312 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1315 int ctdb_attach_databases(struct ctdb_context *ctdb);
1317 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1318 struct ctdb_req_control *c,
1319 TDB_DATA recdata, bool *async_reply);
1320 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1321 struct ctdb_req_control *c, TDB_DATA recdata,
1323 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1324 struct ctdb_req_control *c,
1325 TDB_DATA recdata, bool *async_reply);
1327 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1328 struct ctdb_req_control *c,
1329 TDB_DATA recdata, bool *async_reply);
1331 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1333 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1334 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1335 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1336 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1337 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1338 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1343 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1344 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1346 void ctdb_block_signal(int signum);
1347 void ctdb_unblock_signal(int signum);
1348 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1349 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1350 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1352 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1354 struct client_async_data {
1355 enum ctdb_controls opcode;
1356 bool dont_log_errors;
1358 uint32_t fail_count;
1359 client_async_callback callback;
1360 client_async_callback fail_callback;
1361 void *callback_data;
1363 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1364 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1365 int ctdb_client_async_control(struct ctdb_context *ctdb,
1366 enum ctdb_controls opcode,
1369 struct timeval timeout,
1370 bool dont_log_errors,
1372 client_async_callback client_callback,
1373 client_async_callback fail_callback,
1374 void *callback_data);
1376 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1378 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1380 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1381 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1383 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1384 struct ctdb_req_control *c);
1385 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1386 struct ctdb_req_control *c);
1387 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1388 struct ctdb_req_control *c,
1391 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1392 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1393 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1395 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1396 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1398 extern int script_log_level;
1399 extern bool fast_start;
1401 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1405 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1406 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1408 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1409 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1411 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1412 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1414 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1415 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1417 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1418 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1419 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1420 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1421 void ctdb_ban_self(struct ctdb_context *ctdb);
1423 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1425 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1427 int start_syslog_daemon(struct ctdb_context *ctdb);
1429 /* Where to send the log messages back to */
1430 struct ctdb_get_log_addr {
1436 extern int log_ringbuf_size;
1438 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1439 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1442 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1443 struct ctdb_context *ctdb,
1444 const char *log_prefix,
1445 void (*logfn)(const char *, uint16_t, void *),
1446 void *logfn_private, pid_t *pid);
1448 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1449 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1451 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1455 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1456 struct ctdb_db_context *ctdb_db);
1457 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1458 struct ctdb_db_context *ctdb_db,
1459 const char *reason,/* NULL means healthy */
1460 int num_healthy_nodes);
1461 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1463 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1465 void ctdb_fault_setup(void);
1467 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1468 struct ctdb_all_public_ips *ips);
1469 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1470 struct ctdb_public_ip *ip);
1472 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1474 int ctdb_statistics_init(struct ctdb_context *ctdb);
1476 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1477 struct ctdb_req_control *c,
1480 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1482 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1485 * structure to pass to a schedule_for_deletion_control
1487 struct ctdb_control_schedule_for_deletion {
1489 struct ctdb_ltdb_header hdr;
1491 uint8_t key[1]; /* key[] */
1494 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1498 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1499 const struct ctdb_ltdb_header *hdr,
1502 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1503 const struct ctdb_ltdb_header *hdr,
1504 const TDB_DATA key);
1506 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1508 /* For unit testing ctdb_transaction.c. */
1509 struct ctdb_public_ip_list {
1510 struct ctdb_public_ip_list *next;
1512 ctdb_sock_addr addr;
1514 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1516 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1518 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1520 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);
1522 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1524 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);
1526 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1528 int ctdb_null_func(struct ctdb_call_info *call);
1530 int ctdb_fetch_func(struct ctdb_call_info *call);
1532 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1534 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1538 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1541 description for a message to reload all ips via recovery master/daemon
1543 struct reloadips_all_reply {
1548 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1550 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1552 /* from server/ctdb_lock.c */
1553 struct lock_request;
1555 int ctdb_lockall_prio(struct ctdb_context *ctdb, uint32_t priority);
1556 int ctdb_unlockall_prio(struct ctdb_context *ctdb, uint32_t priority);
1557 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1558 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1560 void ctdb_lock_free_request_context(struct lock_request *lock_req);
1562 struct lock_request *ctdb_lock_record(struct ctdb_db_context *ctdb_db,
1565 void (*callback)(void *, bool),
1566 void *private_data);
1568 struct lock_request *ctdb_lock_db(struct ctdb_db_context *ctdb_db,
1570 void (*callback)(void *, bool),
1571 void *private_data);
1573 struct lock_request *ctdb_lock_alldb_prio(struct ctdb_context *ctdb,
1576 void (*callback)(void *, bool),
1577 void *private_data);
1579 struct lock_request *ctdb_lock_alldb(struct ctdb_context *ctdb,
1581 void (*callback)(void *, bool),
1582 void *private_data);