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 * Structure to support SRVID requests and replies
29 struct srvid_request {
36 * pid of the ctdbd daemon
38 extern pid_t ctdbd_pid;
41 a tcp connection description
42 also used by tcp_add and tcp_remove controls
44 struct ctdb_tcp_connection {
45 ctdb_sock_addr src_addr;
46 ctdb_sock_addr dst_addr;
49 /* the wire representation for a tcp tickle array */
50 struct ctdb_tcp_wire_array {
52 struct ctdb_tcp_connection connections[1];
55 /* the list of tcp tickles used by get/set tcp tickle list */
56 struct ctdb_control_tcp_tickle_list {
58 struct ctdb_tcp_wire_array tickles;
62 array of tcp connections
64 struct ctdb_tcp_array {
66 struct ctdb_tcp_connection *connections;
70 /* all tunable variables go in here */
72 uint32_t max_redirect_count;
73 uint32_t seqnum_interval; /* unit is ms */
74 uint32_t control_timeout;
75 uint32_t traverse_timeout;
76 uint32_t keepalive_interval;
77 uint32_t keepalive_limit;
78 uint32_t recover_timeout;
79 uint32_t recover_interval;
80 uint32_t election_timeout;
81 uint32_t takeover_timeout;
82 uint32_t monitor_interval;
83 uint32_t tickle_update_interval;
84 uint32_t script_timeout;
85 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
86 uint32_t script_unhealthy_on_timeout; /* obsolete */
87 uint32_t recovery_grace_period;
88 uint32_t recovery_ban_period;
89 uint32_t database_hash_size;
90 uint32_t database_max_dead;
91 uint32_t rerecovery_timeout;
93 uint32_t deterministic_public_ips;
94 uint32_t reclock_ping_period;
95 uint32_t no_ip_failback;
96 uint32_t disable_ip_failover;
97 uint32_t verbose_memory_names;
98 uint32_t recd_ping_timeout;
99 uint32_t recd_ping_failcount;
100 uint32_t log_latency_ms;
101 uint32_t reclock_latency_ms;
102 uint32_t recovery_drop_all_ips;
103 uint32_t verify_recovery_lock;
104 uint32_t vacuum_interval;
105 uint32_t vacuum_default_interval;
106 uint32_t vacuum_max_run_time;
107 uint32_t repack_limit;
108 uint32_t vacuum_limit;
109 uint32_t vacuum_min_interval;
110 uint32_t vacuum_max_interval;
111 uint32_t max_queue_depth_drop_msg;
112 uint32_t use_status_events_for_monitoring;
113 uint32_t allow_unhealthy_db_read;
114 uint32_t stat_history_interval;
115 uint32_t deferred_attach_timeout;
116 uint32_t vacuum_fast_path_count;
117 uint32_t lcp2_public_ip_assignment;
118 uint32_t allow_client_db_attach;
119 uint32_t recover_pdb_by_seqnum;
120 uint32_t deferred_rebalance_on_node_add;
121 uint32_t fetch_collapse;
122 uint32_t hopcount_make_sticky;
123 uint32_t sticky_duration;
124 uint32_t sticky_pindown;
125 uint32_t no_ip_takeover;
126 uint32_t db_record_count_warn;
127 uint32_t db_record_size_warn;
128 uint32_t db_size_warn;
129 uint32_t pulldb_preallocation_size;
130 uint32_t no_ip_host_on_all_disabled;
131 uint32_t samba3_hack;
135 an installed ctdb remote call
137 struct ctdb_registered_call {
138 struct ctdb_registered_call *next, *prev;
144 this address structure might need to be generalised later for some
147 struct ctdb_address {
153 check that a pnn is valid
155 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
158 /* called from the queue code when a packet comes in. Called with data==NULL
160 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
163 /* used for callbacks in ctdb_control requests */
164 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
165 int32_t status, TDB_DATA data,
166 const char *errormsg,
169 structure describing a connected client in the daemon
172 struct ctdb_context *ctdb;
174 struct ctdb_queue *queue;
177 struct ctdb_tcp_list *tcp_list;
179 uint32_t num_persistent_updates;
180 struct ctdb_client_notify_list *notify;
185 /* state associated with a public ip address */
187 struct ctdb_vnn *prev, *next;
189 struct ctdb_iface *iface;
191 ctdb_sock_addr public_address;
192 uint8_t public_netmask_bits;
194 /* the node number that is serving this public address, if any.
195 If no node serves this ip it is set to -1 */
198 /* List of clients to tickle for this public address */
199 struct ctdb_tcp_array *tcp_array;
201 /* whether we need to update the other nodes with changes to our list
202 of connected clients */
203 bool tcp_update_needed;
205 /* a context to hang sending gratious arp events off */
206 TALLOC_CTX *takeover_ctx;
208 struct ctdb_kill_tcp *killtcp;
210 /* Set to true any time an update to this VNN is in flight.
211 This helps to avoid races. */
212 bool update_in_flight;
216 state associated with one node
219 struct ctdb_context *ctdb;
220 struct ctdb_address address;
221 const char *name; /* for debug messages */
222 void *private_data; /* private to transport */
226 /* used by the dead node monitoring */
231 /* used to track node capabilities, is only valid/tracked inside the
234 uint32_t capabilities;
236 /* a list of controls pending to this node, so we can time them out quickly
237 if the node becomes disconnected */
238 struct daemon_control_state *pending_controls;
240 /* used by the recovery daemon when distributing ip addresses
241 across the nodes. it needs to know which public ip's can be handled
244 struct ctdb_all_public_ips *known_public_ips;
245 struct ctdb_all_public_ips *available_public_ips;
246 /* used by the recovery dameon to track when a node should be banned */
247 struct ctdb_banning_state *ban_state;
251 transport specific methods
253 struct ctdb_methods {
254 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
255 int (*start)(struct ctdb_context *); /* start the transport */
256 int (*add_node)(struct ctdb_node *); /* setup a new node */
257 int (*connect_node)(struct ctdb_node *); /* connect to node */
258 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
259 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
260 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
261 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
265 transport calls up to the ctdb layer
267 struct ctdb_upcalls {
268 /* recv_pkt is called when a packet comes in */
269 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
271 /* node_dead is called when an attempt to send to a node fails */
272 void (*node_dead)(struct ctdb_node *);
274 /* node_connected is called when a connection to a node is established */
275 void (*node_connected)(struct ctdb_node *);
278 /* list of message handlers - needs to be changed to a more efficient data
279 structure so we can find a message handler given a srvid quickly */
280 struct ctdb_message_list_header {
281 struct ctdb_message_list_header *next, *prev;
282 struct ctdb_context *ctdb;
284 struct ctdb_message_list *m;
286 struct ctdb_message_list {
287 struct ctdb_message_list *next, *prev;
288 struct ctdb_message_list_header *h;
289 ctdb_msg_fn_t message_handler;
290 void *message_private;
293 /* additional data required for the daemon mode */
294 struct ctdb_daemon_data {
297 struct ctdb_queue *queue;
301 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
303 if (value > ctdb->statistics.counter) { \
304 ctdb->statistics.counter = c->hopcount; \
306 if (value > ctdb->statistics_current.counter) { \
307 ctdb->statistics_current.counter = c->hopcount; \
311 #define CTDB_INCREMENT_STAT(ctdb, counter) \
313 ctdb->statistics.counter++; \
314 ctdb->statistics_current.counter++; \
317 #define CTDB_DECREMENT_STAT(ctdb, counter) \
319 if (ctdb->statistics.counter > 0) \
320 ctdb->statistics.counter--; \
321 if (ctdb->statistics_current.counter > 0) \
322 ctdb->statistics_current.counter--; \
325 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
327 ctdb_db->statistics.counter++; \
330 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
332 if (ctdb_db->statistics.counter > 0) \
333 ctdb_db->statistics.counter--; \
336 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
338 if (value > ctdb->statistics.counter.max) \
339 ctdb->statistics.counter.max = value; \
340 if (value > ctdb->statistics_current.counter.max) \
341 ctdb->statistics_current.counter.max = value; \
343 if (ctdb->statistics.counter.num == 0 || \
344 value < ctdb->statistics.counter.min) \
345 ctdb->statistics.counter.min = value; \
346 if (ctdb->statistics_current.counter.num == 0 || \
347 value < ctdb->statistics_current.counter.min) \
348 ctdb->statistics_current.counter.min = value; \
350 ctdb->statistics.counter.total += value; \
351 ctdb->statistics_current.counter.total += value; \
353 ctdb->statistics.counter.num++; \
354 ctdb->statistics_current.counter.num++; \
356 if (ctdb->tunable.reclock_latency_ms != 0) { \
357 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
359 ("High RECLOCK latency %fs for operation %s\n", \
365 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
367 if (value > ctdb_db->statistics.counter.max) \
368 ctdb_db->statistics.counter.max = value; \
369 if (ctdb_db->statistics.counter.num == 0 || \
370 value < ctdb_db->statistics.counter.min) \
371 ctdb_db->statistics.counter.min = value; \
373 ctdb_db->statistics.counter.total += value; \
374 ctdb_db->statistics.counter.num++; \
376 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
377 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
379 ("High latency %.6fs for operation %s on database %s\n",\
380 value, operation, ctdb_db->db_name)); \
385 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
387 double l = timeval_elapsed(&t); \
389 if (l > ctdb->statistics.counter.max) \
390 ctdb->statistics.counter.max = l; \
391 if (l > ctdb->statistics_current.counter.max) \
392 ctdb->statistics_current.counter.max = l; \
394 if (ctdb->statistics.counter.num == 0 || \
395 l < ctdb->statistics.counter.min) \
396 ctdb->statistics.counter.min = l; \
397 if (ctdb->statistics_current.counter.num == 0 || \
398 l < ctdb->statistics_current.counter.min) \
399 ctdb->statistics_current.counter.min = l; \
401 ctdb->statistics.counter.total += l; \
402 ctdb->statistics_current.counter.total += l; \
404 ctdb->statistics.counter.num++; \
405 ctdb->statistics_current.counter.num++; \
407 if (ctdb->tunable.log_latency_ms != 0) { \
408 if (l*1000 > ctdb->tunable.log_latency_ms) { \
409 DEBUG(DEBUG_WARNING, \
410 ("High latency %.6fs for operation %s on database %s\n",\
411 l, operation, db->db_name)); \
418 /* a structure that contains the elements required for the write record
421 struct ctdb_write_record {
425 unsigned char blob[1];
428 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
431 CTDB_RUNSTATE_UNKNOWN,
434 CTDB_RUNSTATE_FIRST_RECOVERY,
435 CTDB_RUNSTATE_STARTUP,
436 CTDB_RUNSTATE_RUNNING,
437 CTDB_RUNSTATE_SHUTDOWN,
440 const char *runstate_to_string(enum ctdb_runstate runstate);
441 enum ctdb_runstate runstate_from_string(const char *label);
442 void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
444 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
446 #define CTDB_MONITORING_ACTIVE 0
447 #define CTDB_MONITORING_DISABLED 1
449 #define NUM_DB_PRIORITIES 3
450 /* main state of the ctdb daemon */
451 struct ctdb_context {
452 struct tevent_context *ev;
453 struct timeval ctdbd_start_time;
454 struct timeval last_recovery_started;
455 struct timeval last_recovery_finished;
456 uint32_t recovery_mode;
457 TALLOC_CTX *tickle_update_context;
458 TALLOC_CTX *keepalive_ctx;
459 TALLOC_CTX *check_public_ifaces_ctx;
460 struct ctdb_tunable tunable;
461 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
462 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
463 bool freeze_transaction_started;
464 uint32_t freeze_transaction_id;
465 struct ctdb_address address;
467 const char *db_directory;
468 const char *db_directory_persistent;
469 const char *db_directory_state;
470 struct tdb_wrap *db_persistent_health;
471 uint32_t db_persistent_startup_generation;
472 uint64_t db_persistent_check_errors;
473 uint64_t max_persistent_check_errors;
474 const char *transport;
475 char *recovery_lock_file;
476 int recovery_lock_fd;
477 uint32_t pnn; /* our own pnn */
479 uint32_t num_connected;
481 uint32_t capabilities;
482 struct idr_context *idr;
484 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
485 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
486 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
487 struct ctdb_iface *ifaces; /* list of local interfaces */
489 const struct ctdb_methods *methods; /* transport methods */
490 const struct ctdb_upcalls *upcalls; /* transport upcalls */
491 void *private_data; /* private to transport */
492 struct ctdb_db_context *db_list;
493 struct ctdb_message_list_header *message_list_header;
494 struct tdb_context *message_list_indexdb;
495 struct ctdb_daemon_data daemon;
496 struct ctdb_statistics statistics;
497 struct ctdb_statistics statistics_current;
498 #define MAX_STAT_HISTORY 100
499 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
500 struct ctdb_vnn_map *vnn_map;
501 uint32_t num_clients;
502 uint32_t recovery_master;
503 struct ctdb_call_state *pending_calls;
504 struct ctdb_client_ip *client_ip_list;
505 bool do_checkpublicip;
506 struct trbt_tree *server_ids;
508 void *saved_scheduler_param;
509 const char *event_script_dir;
510 const char *notification_script;
511 const char *default_public_interface;
515 enum ctdb_runstate runstate;
516 struct ctdb_monitor_state *monitor;
517 struct ctdb_log_state *log;
518 int start_as_disabled;
519 int start_as_stopped;
521 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
522 uint32_t *recd_ping_count;
523 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
524 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
526 TALLOC_CTX *event_script_ctx;
528 struct ctdb_event_script_state *current_monitor;
529 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
531 TALLOC_CTX *banning_ctx;
533 struct ctdb_vacuum_child_context *vacuumers;
535 /* mapping from pid to ctdb_client * */
536 struct ctdb_client_pid_list *client_pids;
538 /* used in the recovery daemon to remember the ip allocation */
539 struct trbt_tree *ip_tree;
541 /* Used to defer db attach requests while in recovery mode */
542 struct ctdb_deferred_attach_context *deferred_attach;
544 /* if we are a child process, do we have a domain socket to send controls on */
545 bool can_send_controls;
547 /* list of event script callback functions that are active */
548 struct event_script_callback *script_callbacks;
550 struct ctdb_reloadips_handle *reload_ips;
552 const char *nodes_file;
553 const char *public_addresses_file;
554 struct trbt_tree *child_processes;
556 /* Used for locking record/db/alldb */
557 int lock_num_current;
558 int lock_num_pending;
559 struct lock_context *lock_current;
560 struct lock_context *lock_pending;
563 struct ctdb_db_context {
564 struct ctdb_db_context *next, *prev;
565 struct ctdb_context *ctdb;
569 bool readonly; /* Do we support read-only delegations ? */
570 bool sticky; /* Do we support sticky records ? */
573 struct tdb_wrap *ltdb;
574 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
575 struct ctdb_registered_call *calls; /* list of registered calls */
577 struct timed_event *seqnum_update;
578 struct ctdb_traverse_local_handle *traverse;
579 struct ctdb_vacuum_handle *vacuum_handle;
580 char *unhealthy_reason;
581 int pending_requests;
582 struct revokechild_handle *revokechild_active;
583 struct ctdb_persistent_state *persistent_state;
584 struct trbt_tree *delete_queue;
585 struct trbt_tree *sticky_records;
586 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
588 struct ctdb_ltdb_header *header,
591 /* used to track which records we are currently fetching
592 so we can avoid sending duplicate fetch requests
594 struct trbt_tree *deferred_fetch;
596 struct ctdb_db_statistics statistics;
600 #define CTDB_NO_MEMORY(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 -1; }} while (0)
605 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
606 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
607 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
610 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
611 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
612 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
613 return NULL; }} while (0)
615 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
616 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
617 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
621 structure passed in set_call control
623 struct ctdb_control_set_call {
630 struct for kill_tcp control
632 struct ctdb_control_killtcp {
633 ctdb_sock_addr src_addr;
634 ctdb_sock_addr dst_addr;
638 struct holding a ctdb_sock_addr and an interface name,
639 used to add/remove public addresses
641 struct ctdb_control_ip_iface {
649 struct holding a ctdb_sock_addr and an interface name,
650 used for send_gratious_arp
652 struct ctdb_control_gratious_arp {
660 persistent store control - update this record on all other nodes
662 struct ctdb_control_persistent_store {
669 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
671 struct ctdb_node_flag_change {
678 struct for admin setting a ban
680 struct ctdb_ban_info {
685 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
687 #define CTDB_LMASTER_ANY 0xffffffff
690 state of a in-progress ctdb call
692 struct ctdb_call_state {
693 struct ctdb_call_state *next, *prev;
694 enum call_state state;
696 struct ctdb_req_call *c;
697 struct ctdb_db_context *ctdb_db;
699 struct ctdb_call *call;
702 void (*fn)(struct ctdb_call_state *);
708 /* used for fetch_lock */
709 struct ctdb_fetch_handle {
710 struct ctdb_db_context *ctdb_db;
713 struct ctdb_ltdb_header header;
716 /* internal prototypes */
717 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
718 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
719 void ctdb_die(struct ctdb_context *ctdb, const char *msg);
720 void ctdb_external_trace(void);
721 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
722 int ctdb_parse_address(struct ctdb_context *ctdb,
723 TALLOC_CTX *mem_ctx, const char *str,
724 struct ctdb_address *address);
725 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
726 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
727 uint32_t ctdb_hash(const TDB_DATA *key);
728 uint32_t ctdb_hash_string(const char *str);
729 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
730 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
731 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
732 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
733 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
734 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
736 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
737 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
738 TDB_DATA key, struct ctdb_ltdb_header *header,
739 TALLOC_CTX *mem_ctx, TDB_DATA *data);
740 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
741 struct ctdb_ltdb_header *header, TDB_DATA data);
742 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
743 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
744 TDB_DATA key, struct ctdb_ltdb_header *header,
745 TALLOC_CTX *mem_ctx, TDB_DATA *data);
746 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
747 struct ctdb_req_control *c,
749 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
750 struct ctdb_req_control *c,
752 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
753 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
754 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
755 TDB_DATA key, struct ctdb_req_header *hdr,
756 void (*recv_pkt)(void *, struct ctdb_req_header *),
757 void *recv_context, bool ignore_generation);
758 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
759 TDB_DATA key, struct ctdb_ltdb_header *header,
760 struct ctdb_req_header *hdr, TDB_DATA *data,
761 void (*recv_pkt)(void *, struct ctdb_req_header *),
762 void *recv_context, bool ignore_generation);
763 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
765 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
766 struct ctdb_call *call,
767 struct ctdb_ltdb_header *header,
771 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork,
773 const char *public_address_list);
774 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
775 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
778 queue a packet for sending
780 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
783 setup the fd used by the queue
785 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
788 setup a packet queue on a socket
790 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
791 TALLOC_CTX *mem_ctx, int fd, int alignment,
793 ctdb_queue_cb_fn_t callback,
794 void *private_data, const char *fmt, ...)
795 PRINTF_ATTRIBUTE(7,8);
798 allocate a packet for use in client<->daemon communication
800 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
802 enum ctdb_operation operation,
803 size_t length, size_t slength,
805 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
806 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
808 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
810 enum ctdb_operation operation,
811 size_t length, size_t slength,
813 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
814 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
816 int ctdb_queue_length(struct ctdb_queue *queue);
819 lock a record in the ltdb, given a key
821 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
824 unlock a record in the ltdb, given a key
826 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
830 make a ctdb call to the local daemon - async send. Called from client context.
832 This constructs a ctdb_call request and queues it for processing.
833 This call never blocks.
835 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
836 struct ctdb_call *call);
839 make a recv call to the local ctdb daemon - called from client context
841 This is called when the program wants to wait for a ctdb_call to complete and get the
842 results. This call will block unless the call has already completed.
844 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
846 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
847 uint64_t srvid, TDB_DATA data);
852 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
853 uint64_t srvid, TDB_DATA data);
856 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
857 struct ctdb_call *call);
859 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
861 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
862 struct ctdb_call *call,
863 struct ctdb_ltdb_header *header);
865 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
866 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
867 TDB_DATA *data, bool updatetdb);
869 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
871 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
873 int ctdb_socket_connect(struct ctdb_context *ctdb);
874 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
876 #define CTDB_BAD_REQID ((uint32_t)-1)
877 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
878 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
879 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
881 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
882 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
884 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
885 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
887 ctdb_control_callback_fn_t callback,
890 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
891 TDB_DATA *outdata, uint64_t tdb_flags,
892 bool persistent, uint32_t client_id,
893 struct ctdb_req_control *c,
896 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
897 ctdb_fn_t fn, int id);
899 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
900 uint32_t opcode, uint32_t flags, TDB_DATA data,
901 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
902 struct timeval *timeout, char **errormsg);
903 int ctdb_control_recv(struct ctdb_context *ctdb,
904 struct ctdb_client_control_state *state,
906 TDB_DATA *outdata, int32_t *status, char **errormsg);
908 struct ctdb_client_control_state *
909 ctdb_control_send(struct ctdb_context *ctdb,
910 uint32_t destnode, uint64_t srvid,
911 uint32_t opcode, uint32_t flags, TDB_DATA data,
913 struct timeval *timeout,
919 #define CHECK_CONTROL_DATA_SIZE(size) do { \
920 if (indata.dsize != size) { \
921 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
922 opcode, (unsigned)indata.dsize, (unsigned)size)); \
927 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
928 if (indata.dsize < size) { \
929 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
930 opcode, (unsigned)indata.dsize, (unsigned)size)); \
935 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
936 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
937 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
938 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
939 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
940 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
943 /* structure used for pulldb control */
944 struct ctdb_control_pulldb {
949 /* structure used for sending lists of records */
950 struct ctdb_marshall_buffer {
957 structure for setting a tunable
959 struct ctdb_control_set_tunable {
966 structure for getting a tunable
968 struct ctdb_control_get_tunable {
974 structure for listing tunables
976 struct ctdb_control_list_tunable {
978 /* returns a : separated list of tunable names */
983 struct ctdb_node_and_flagsv4 {
986 struct sockaddr_in sin;
989 struct ctdb_node_mapv4 {
991 struct ctdb_node_and_flagsv4 nodes[1];
994 struct ctdb_control_wipe_database {
996 uint32_t transaction_id;
1000 state of a in-progress ctdb call in client
1002 struct ctdb_client_call_state {
1003 enum call_state state;
1005 struct ctdb_db_context *ctdb_db;
1006 struct ctdb_call *call;
1008 void (*fn)(struct ctdb_client_call_state *);
1014 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1018 uint32_t client_id);
1019 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1020 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1021 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1022 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1023 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1024 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1025 TDB_DATA *outdata, uint32_t srcnode);
1027 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1028 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
1030 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1031 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1032 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1033 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1036 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1037 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1039 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1040 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1042 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1044 struct ctdb_ltdb_header *header,
1045 TDB_DATA *key, TDB_DATA *data);
1047 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1048 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1050 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1051 struct ctdb_req_control *c,
1052 TDB_DATA indata, bool *async_reply,
1053 const char **errormsg);
1054 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1055 TDB_DATA *outdata, int32_t status, const char *errormsg);
1057 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1058 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1060 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1061 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1063 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1065 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1066 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1067 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1068 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1069 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1070 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1071 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1072 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1073 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1076 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1077 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1078 void ctdb_node_dead(struct ctdb_node *node);
1079 void ctdb_node_connected(struct ctdb_node *node);
1080 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1081 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1082 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1084 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1085 pid_t ctdb_fork(struct ctdb_context *ctdb);
1086 pid_t ctdb_fork_no_free_ringbuffer(struct ctdb_context *ctdb);
1087 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1088 bool ctdb_is_child_process(void);
1089 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1091 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1092 struct ctdb_req_control *c,
1095 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1096 struct ctdb_req_control *c,
1099 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1100 struct ctdb_req_control *c,
1103 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1104 struct ctdb_req_control *c,
1107 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
1108 struct ctdb_req_control *c,
1110 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1111 struct ctdb_req_control *c,
1113 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1114 struct ctdb_req_control *c,
1117 struct ctdb_public_ipv4 {
1119 struct sockaddr_in sin;
1122 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1123 uint32_t destnode, struct ctdb_public_ip *ip);
1124 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1125 uint32_t destnode, struct ctdb_public_ip *ip);
1127 struct ctdb_all_public_ipsv4 {
1129 struct ctdb_public_ipv4 ips[1];
1132 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1133 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1134 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1135 struct timeval timeout,
1137 TALLOC_CTX *mem_ctx,
1138 struct ctdb_all_public_ips **ips);
1139 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1140 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1141 struct timeval timeout, uint32_t destnode,
1142 TALLOC_CTX *mem_ctx,
1144 struct ctdb_all_public_ips **ips);
1145 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1146 struct timeval timeout, uint32_t destnode,
1147 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1149 struct ctdb_control_iface_info {
1150 char name[CTDB_IFACE_SIZE+2];
1151 uint16_t link_state;
1152 uint32_t references;
1155 struct ctdb_control_public_ip_info {
1156 struct ctdb_public_ip ip;
1157 uint32_t active_idx;
1159 struct ctdb_control_iface_info ifaces[1];
1162 struct ctdb_control_get_ifaces {
1164 struct ctdb_control_iface_info ifaces[1];
1167 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1168 struct ctdb_req_control *c,
1171 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1172 struct ctdb_req_control *c,
1174 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1175 struct ctdb_req_control *c,
1177 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1178 struct timeval timeout, uint32_t destnode,
1179 TALLOC_CTX *mem_ctx,
1180 const ctdb_sock_addr *addr,
1181 struct ctdb_control_public_ip_info **info);
1182 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1183 struct timeval timeout, uint32_t destnode,
1184 TALLOC_CTX *mem_ctx,
1185 struct ctdb_control_get_ifaces **ifaces);
1186 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1187 struct timeval timeout, uint32_t destnode,
1188 TALLOC_CTX *mem_ctx,
1189 const struct ctdb_control_iface_info *info);
1191 /* from takeover/system.c */
1192 uint32_t uint16_checksum(uint16_t *data, size_t n);
1193 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1194 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1195 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1196 bool ctdb_sys_check_iface_exists(const char *iface);
1197 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1198 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1199 const ctdb_sock_addr *src,
1200 uint32_t seq, uint32_t ack, int rst);
1202 /* Details of a byte range lock */
1203 struct ctdb_lock_info {
1210 char *ctdb_get_process_name(pid_t pid);
1211 int ctdb_set_process_name(const char *name);
1212 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1213 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1215 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1217 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1218 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1221 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1222 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1223 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
1224 uint32_t *force_rebalance_nodes,
1225 client_async_callback fail_callback, void *callback_data);
1227 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1229 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1230 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1231 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1232 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1233 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1234 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1235 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1237 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1238 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1239 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1240 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1241 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1242 TALLOC_CTX *mem_ctx,
1243 void (*callback)(struct ctdb_context *, int, void *),
1246 enum ctdb_eventscript_call call,
1247 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1248 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1250 void set_nonblocking(int fd);
1251 void set_close_on_exec(int fd);
1253 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1255 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1257 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1259 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1260 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1261 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1262 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1263 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1264 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1266 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1268 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1270 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1271 struct timeval timeout,
1273 struct ctdb_tunable *tunables);
1275 void ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1277 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1278 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1279 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1280 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1283 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1284 int ctdb_sys_close_capture_socket(void *private_data);
1285 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);
1287 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1288 struct timeval timeout,
1290 struct ctdb_control_killtcp *killtcp);
1292 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1293 struct timeval timeout,
1295 struct ctdb_control_ip_iface *pub);
1297 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1298 struct timeval timeout,
1300 struct ctdb_control_ip_iface *pub);
1302 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1303 struct timeval timeout,
1305 ctdb_sock_addr *addr,
1306 const char *ifname);
1308 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1309 struct timeval timeout,
1311 TALLOC_CTX *mem_ctx,
1312 ctdb_sock_addr *addr,
1313 struct ctdb_control_tcp_tickle_list **list);
1316 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1319 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1321 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1323 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1325 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1328 int ctdb_attach_databases(struct ctdb_context *ctdb);
1330 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1331 struct ctdb_req_control *c,
1332 TDB_DATA recdata, bool *async_reply);
1333 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1334 struct ctdb_req_control *c, TDB_DATA recdata,
1336 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1337 struct ctdb_req_control *c,
1338 TDB_DATA recdata, bool *async_reply);
1340 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1341 struct ctdb_req_control *c,
1342 TDB_DATA recdata, bool *async_reply);
1344 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1346 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1347 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1348 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1349 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1350 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1351 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1356 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1357 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1359 void ctdb_block_signal(int signum);
1360 void ctdb_unblock_signal(int signum);
1361 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1362 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1363 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1364 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1366 struct client_async_data {
1367 enum ctdb_controls opcode;
1368 bool dont_log_errors;
1370 uint32_t fail_count;
1371 client_async_callback callback;
1372 client_async_callback fail_callback;
1373 void *callback_data;
1375 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1376 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1377 int ctdb_client_async_control(struct ctdb_context *ctdb,
1378 enum ctdb_controls opcode,
1381 struct timeval timeout,
1382 bool dont_log_errors,
1384 client_async_callback client_callback,
1385 client_async_callback fail_callback,
1386 void *callback_data);
1388 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1390 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1392 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1393 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1395 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1396 struct ctdb_req_control *c);
1397 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1398 struct ctdb_req_control *c);
1399 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1400 struct ctdb_req_control *c,
1403 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1404 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1405 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1407 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1408 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1410 extern int script_log_level;
1411 extern bool fast_start;
1412 extern const char *ctdbd_pidfile;
1414 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1418 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1419 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1421 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1422 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1424 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1425 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1427 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1428 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1430 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1431 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1432 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1433 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1434 void ctdb_ban_self(struct ctdb_context *ctdb);
1436 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1438 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1440 int start_syslog_daemon(struct ctdb_context *ctdb);
1442 /* Where to send the log messages back to */
1443 struct ctdb_get_log_addr {
1449 extern int log_ringbuf_size;
1451 void ctdb_collect_log(struct ctdb_context *ctdb, struct ctdb_get_log_addr *log_addr);
1452 void ctdb_clear_log(struct ctdb_context *ctdb);
1453 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1454 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1455 void ctdb_log_ringbuffer_free(void);
1457 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1458 struct ctdb_context *ctdb,
1459 const char *log_prefix,
1460 void (*logfn)(const char *, uint16_t, void *),
1461 void *logfn_private, pid_t *pid);
1463 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1464 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1466 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1470 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1471 struct ctdb_db_context *ctdb_db);
1472 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1473 struct ctdb_db_context *ctdb_db,
1474 const char *reason,/* NULL means healthy */
1475 int num_healthy_nodes);
1476 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1478 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1480 void ctdb_fault_setup(void);
1482 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1483 struct ctdb_all_public_ips *ips,
1485 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1486 struct ctdb_public_ip *ip);
1488 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1490 int ctdb_statistics_init(struct ctdb_context *ctdb);
1492 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1493 struct ctdb_req_control *c,
1496 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1498 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1501 * structure to pass to a schedule_for_deletion_control
1503 struct ctdb_control_schedule_for_deletion {
1505 struct ctdb_ltdb_header hdr;
1507 uint8_t key[1]; /* key[] */
1510 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1514 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1515 const struct ctdb_ltdb_header *hdr,
1518 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1519 const struct ctdb_ltdb_header *hdr,
1520 const TDB_DATA key);
1522 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1524 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1526 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1528 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1530 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);
1532 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1534 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);
1536 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1538 int ctdb_null_func(struct ctdb_call_info *call);
1540 int ctdb_fetch_func(struct ctdb_call_info *call);
1542 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1544 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1548 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1551 description for a message to reload all ips via recovery master/daemon
1553 struct reloadips_all_reply {
1558 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1560 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1562 /* from server/ctdb_lock.c */
1563 struct lock_request;
1565 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1566 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1568 void ctdb_lock_free_request_context(struct lock_request *lock_req);
1570 struct lock_request *ctdb_lock_record(struct ctdb_db_context *ctdb_db,
1573 void (*callback)(void *, bool),
1574 void *private_data);
1576 struct lock_request *ctdb_lock_db(struct ctdb_db_context *ctdb_db,
1578 void (*callback)(void *, bool),
1579 void *private_data);
1581 struct lock_request *ctdb_lock_alldb_prio(struct ctdb_context *ctdb,
1584 void (*callback)(void *, bool),
1585 void *private_data);
1587 struct lock_request *ctdb_lock_alldb(struct ctdb_context *ctdb,
1589 void (*callback)(void *, bool),
1590 void *private_data);