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;
140 uint32_t samba3_hack;
144 an installed ctdb remote call
146 struct ctdb_registered_call {
147 struct ctdb_registered_call *next, *prev;
153 this address structure might need to be generalised later for some
156 struct ctdb_address {
162 check that a pnn is valid
164 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
167 /* called from the queue code when a packet comes in. Called with data==NULL
169 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
172 /* used for callbacks in ctdb_control requests */
173 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
174 int32_t status, TDB_DATA data,
175 const char *errormsg,
178 structure describing a connected client in the daemon
181 struct ctdb_context *ctdb;
183 struct ctdb_queue *queue;
186 struct ctdb_tcp_list *tcp_list;
188 uint32_t num_persistent_updates;
189 struct ctdb_client_notify_list *notify;
194 /* state associated with a public ip address */
196 struct ctdb_vnn *prev, *next;
198 struct ctdb_iface *iface;
200 ctdb_sock_addr public_address;
201 uint8_t public_netmask_bits;
203 /* the node number that is serving this public address, if any.
204 If no node serves this ip it is set to -1 */
207 /* List of clients to tickle for this public address */
208 struct ctdb_tcp_array *tcp_array;
210 /* whether we need to update the other nodes with changes to our list
211 of connected clients */
212 bool tcp_update_needed;
214 /* a context to hang sending gratious arp events off */
215 TALLOC_CTX *takeover_ctx;
217 struct ctdb_kill_tcp *killtcp;
219 /* Set to true any time an update to this VNN is in flight.
220 This helps to avoid races. */
221 bool update_in_flight;
225 state associated with one node
228 struct ctdb_context *ctdb;
229 struct ctdb_address address;
230 const char *name; /* for debug messages */
231 void *private_data; /* private to transport */
235 /* used by the dead node monitoring */
240 /* used to track node capabilities, is only valid/tracked inside the
243 uint32_t capabilities;
245 /* a list of controls pending to this node, so we can time them out quickly
246 if the node becomes disconnected */
247 struct daemon_control_state *pending_controls;
249 /* used by the recovery daemon when distributing ip addresses
250 across the nodes. it needs to know which public ip's can be handled
253 struct ctdb_all_public_ips *known_public_ips;
254 struct ctdb_all_public_ips *available_public_ips;
255 /* used by the recovery dameon to track when a node should be banned */
256 struct ctdb_banning_state *ban_state;
260 transport specific methods
262 struct ctdb_methods {
263 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
264 int (*start)(struct ctdb_context *); /* start the transport */
265 int (*add_node)(struct ctdb_node *); /* setup a new node */
266 int (*connect_node)(struct ctdb_node *); /* connect to node */
267 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
268 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
269 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
270 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
274 transport calls up to the ctdb layer
276 struct ctdb_upcalls {
277 /* recv_pkt is called when a packet comes in */
278 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
280 /* node_dead is called when an attempt to send to a node fails */
281 void (*node_dead)(struct ctdb_node *);
283 /* node_connected is called when a connection to a node is established */
284 void (*node_connected)(struct ctdb_node *);
287 /* list of message handlers - needs to be changed to a more efficient data
288 structure so we can find a message handler given a srvid quickly */
289 struct ctdb_message_list_header {
290 struct ctdb_message_list_header *next, *prev;
291 struct ctdb_context *ctdb;
293 struct ctdb_message_list *m;
295 struct ctdb_message_list {
296 struct ctdb_message_list *next, *prev;
297 struct ctdb_message_list_header *h;
298 ctdb_msg_fn_t message_handler;
299 void *message_private;
302 /* additional data required for the daemon mode */
303 struct ctdb_daemon_data {
306 struct ctdb_queue *queue;
310 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
312 if (value > ctdb->statistics.counter) { \
313 ctdb->statistics.counter = c->hopcount; \
315 if (value > ctdb->statistics_current.counter) { \
316 ctdb->statistics_current.counter = c->hopcount; \
320 #define CTDB_INCREMENT_STAT(ctdb, counter) \
322 ctdb->statistics.counter++; \
323 ctdb->statistics_current.counter++; \
326 #define CTDB_DECREMENT_STAT(ctdb, counter) \
328 if (ctdb->statistics.counter > 0) \
329 ctdb->statistics.counter--; \
330 if (ctdb->statistics_current.counter > 0) \
331 ctdb->statistics_current.counter--; \
334 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
336 ctdb_db->statistics.counter++; \
339 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
341 if (ctdb_db->statistics.counter > 0) \
342 ctdb_db->statistics.counter--; \
345 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
347 if (value > ctdb->statistics.counter.max) \
348 ctdb->statistics.counter.max = value; \
349 if (value > ctdb->statistics_current.counter.max) \
350 ctdb->statistics_current.counter.max = value; \
352 if (ctdb->statistics.counter.num == 0 || \
353 value < ctdb->statistics.counter.min) \
354 ctdb->statistics.counter.min = value; \
355 if (ctdb->statistics_current.counter.num == 0 || \
356 value < ctdb->statistics_current.counter.min) \
357 ctdb->statistics_current.counter.min = value; \
359 ctdb->statistics.counter.total += value; \
360 ctdb->statistics_current.counter.total += value; \
362 ctdb->statistics.counter.num++; \
363 ctdb->statistics_current.counter.num++; \
365 if (ctdb->tunable.reclock_latency_ms != 0) { \
366 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
368 ("High RECLOCK latency %fs for operation %s\n", \
374 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
376 if (value > ctdb_db->statistics.counter.max) \
377 ctdb_db->statistics.counter.max = value; \
378 if (ctdb_db->statistics.counter.num == 0 || \
379 value < ctdb_db->statistics.counter.min) \
380 ctdb_db->statistics.counter.min = value; \
382 ctdb_db->statistics.counter.total += value; \
383 ctdb_db->statistics.counter.num++; \
385 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
386 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
388 ("High latency %.6fs for operation %s on database %s\n",\
389 value, operation, ctdb_db->db_name)); \
394 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
396 double l = timeval_elapsed(&t); \
398 if (l > ctdb->statistics.counter.max) \
399 ctdb->statistics.counter.max = l; \
400 if (l > ctdb->statistics_current.counter.max) \
401 ctdb->statistics_current.counter.max = l; \
403 if (ctdb->statistics.counter.num == 0 || \
404 l < ctdb->statistics.counter.min) \
405 ctdb->statistics.counter.min = l; \
406 if (ctdb->statistics_current.counter.num == 0 || \
407 l < ctdb->statistics_current.counter.min) \
408 ctdb->statistics_current.counter.min = l; \
410 ctdb->statistics.counter.total += l; \
411 ctdb->statistics_current.counter.total += l; \
413 ctdb->statistics.counter.num++; \
414 ctdb->statistics_current.counter.num++; \
416 if (ctdb->tunable.log_latency_ms != 0) { \
417 if (l*1000 > ctdb->tunable.log_latency_ms) { \
418 DEBUG(DEBUG_WARNING, \
419 ("High latency %.6fs for operation %s on database %s\n",\
420 l, operation, db->db_name)); \
427 /* a structure that contains the elements required for the write record
430 struct ctdb_write_record {
434 unsigned char blob[1];
437 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
439 #define CTDB_MONITORING_ACTIVE 0
440 #define CTDB_MONITORING_DISABLED 1
442 #define NUM_DB_PRIORITIES 3
443 /* main state of the ctdb daemon */
444 struct ctdb_context {
445 struct tevent_context *ev;
446 struct timeval ctdbd_start_time;
447 struct timeval last_recovery_started;
448 struct timeval last_recovery_finished;
449 uint32_t recovery_mode;
450 TALLOC_CTX *tickle_update_context;
451 TALLOC_CTX *keepalive_ctx;
452 TALLOC_CTX *check_public_ifaces_ctx;
453 struct ctdb_tunable tunable;
454 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
455 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
456 bool freeze_transaction_started;
457 uint32_t freeze_transaction_id;
458 struct ctdb_address address;
460 const char *db_directory;
461 const char *db_directory_persistent;
462 const char *db_directory_state;
463 struct tdb_wrap *db_persistent_health;
464 uint32_t db_persistent_startup_generation;
465 uint64_t db_persistent_check_errors;
466 uint64_t max_persistent_check_errors;
467 const char *transport;
468 char *recovery_lock_file;
469 int recovery_lock_fd;
470 uint32_t pnn; /* our own pnn */
472 uint32_t num_connected;
474 uint32_t capabilities;
475 struct idr_context *idr;
477 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
478 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
479 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
480 struct ctdb_iface *ifaces; /* list of local interfaces */
482 const struct ctdb_methods *methods; /* transport methods */
483 const struct ctdb_upcalls *upcalls; /* transport upcalls */
484 void *private_data; /* private to transport */
485 struct ctdb_db_context *db_list;
486 struct ctdb_message_list_header *message_list_header;
487 struct tdb_context *message_list_indexdb;
488 struct ctdb_daemon_data daemon;
489 struct ctdb_statistics statistics;
490 struct ctdb_statistics statistics_current;
491 #define MAX_STAT_HISTORY 100
492 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
493 struct ctdb_vnn_map *vnn_map;
494 uint32_t num_clients;
495 uint32_t recovery_master;
496 struct ctdb_call_state *pending_calls;
497 struct ctdb_client_ip *client_ip_list;
498 bool do_checkpublicip;
499 struct trbt_tree *server_ids;
501 void *saved_scheduler_param;
502 const char *event_script_dir;
503 const char *notification_script;
504 const char *default_public_interface;
509 struct ctdb_monitor_state *monitor;
510 struct ctdb_log_state *log;
511 int start_as_disabled;
512 int start_as_stopped;
514 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
515 uint32_t *recd_ping_count;
516 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
517 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
519 TALLOC_CTX *event_script_ctx;
521 struct ctdb_event_script_state *current_monitor;
522 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
524 TALLOC_CTX *banning_ctx;
526 struct ctdb_vacuum_child_context *vacuumers;
528 /* mapping from pid to ctdb_client * */
529 struct ctdb_client_pid_list *client_pids;
531 /* used in the recovery daemon to remember the ip allocation */
532 struct trbt_tree *ip_tree;
534 /* Used to defer db attach requests while in recovery mode */
535 struct ctdb_deferred_attach_context *deferred_attach;
537 /* if we are a child process, do we have a domain socket to send controls on */
538 bool can_send_controls;
540 /* list of event script callback functions that are active */
541 struct event_script_callback *script_callbacks;
543 struct ctdb_reloadips_handle *reload_ips;
545 const char *public_addresses_file;
546 struct trbt_tree *child_processes;
548 /* Used for locking record/db/alldb */
549 int lock_num_current;
550 int lock_num_pending;
551 struct lock_context *lock_current;
552 struct lock_context *lock_pending;
555 struct ctdb_db_context {
556 struct ctdb_db_context *next, *prev;
557 struct ctdb_context *ctdb;
561 bool readonly; /* Do we support read-only delegations ? */
562 bool sticky; /* Do we support sticky records ? */
565 struct tdb_wrap *ltdb;
566 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
567 struct ctdb_registered_call *calls; /* list of registered calls */
569 struct timed_event *seqnum_update;
570 struct ctdb_traverse_local_handle *traverse;
571 bool transaction_active;
572 struct ctdb_vacuum_handle *vacuum_handle;
573 char *unhealthy_reason;
574 int pending_requests;
575 struct revokechild_handle *revokechild_active;
576 struct ctdb_persistent_state *persistent_state;
577 struct trbt_tree *delete_queue;
578 struct trbt_tree *sticky_records;
579 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
581 struct ctdb_ltdb_header *header,
584 /* used to track which records we are currently fetching
585 so we can avoid sending duplicate fetch requests
587 struct trbt_tree *deferred_fetch;
589 struct ctdb_db_statistics statistics;
593 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
594 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
595 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
596 return -1; }} while (0)
598 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
599 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
600 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
603 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
604 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
605 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
606 return NULL; }} while (0)
608 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
609 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
610 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
614 structure passed in set_call control
616 struct ctdb_control_set_call {
623 struct for kill_tcp control
625 struct ctdb_control_killtcp {
626 ctdb_sock_addr src_addr;
627 ctdb_sock_addr dst_addr;
631 struct holding a ctdb_sock_addr and an interface name,
632 used to add/remove public addresses
634 struct ctdb_control_ip_iface {
642 struct holding a ctdb_sock_addr and an interface name,
643 used for send_gratious_arp
645 struct ctdb_control_gratious_arp {
653 persistent store control - update this record on all other nodes
655 struct ctdb_control_persistent_store {
662 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
664 struct ctdb_node_flag_change {
671 struct for admin setting a ban
673 struct ctdb_ban_info {
678 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
680 #define CTDB_LMASTER_ANY 0xffffffff
683 state of a in-progress ctdb call
685 struct ctdb_call_state {
686 struct ctdb_call_state *next, *prev;
687 enum call_state state;
689 struct ctdb_req_call *c;
690 struct ctdb_db_context *ctdb_db;
692 struct ctdb_call *call;
695 void (*fn)(struct ctdb_call_state *);
701 /* used for fetch_lock */
702 struct ctdb_fetch_handle {
703 struct ctdb_db_context *ctdb_db;
706 struct ctdb_ltdb_header header;
709 /* internal prototypes */
710 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
711 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
712 void ctdb_external_trace(void);
713 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
714 int ctdb_parse_address(struct ctdb_context *ctdb,
715 TALLOC_CTX *mem_ctx, const char *str,
716 struct ctdb_address *address);
717 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
718 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
719 uint32_t ctdb_hash(const TDB_DATA *key);
720 uint32_t ctdb_hash_string(const char *str);
721 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
722 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
723 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
724 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
725 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
726 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
728 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
729 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
730 TDB_DATA key, struct ctdb_ltdb_header *header,
731 TALLOC_CTX *mem_ctx, TDB_DATA *data);
732 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
733 struct ctdb_ltdb_header *header, TDB_DATA data);
734 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
735 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
736 TDB_DATA key, struct ctdb_ltdb_header *header,
737 TALLOC_CTX *mem_ctx, TDB_DATA *data);
738 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
739 struct ctdb_req_control *c,
741 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
742 struct ctdb_req_control *c,
744 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
745 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
746 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
747 TDB_DATA key, struct ctdb_req_header *hdr,
748 void (*recv_pkt)(void *, struct ctdb_req_header *),
749 void *recv_context, bool ignore_generation);
750 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
751 TDB_DATA key, struct ctdb_ltdb_header *header,
752 struct ctdb_req_header *hdr, TDB_DATA *data,
753 void (*recv_pkt)(void *, struct ctdb_req_header *),
754 void *recv_context, bool ignore_generation);
755 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
757 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
758 struct ctdb_call *call,
759 struct ctdb_ltdb_header *header,
763 int ctdbd_start(struct ctdb_context *ctdb);
764 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork,
766 const char *public_address_list);
767 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
768 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
771 queue a packet for sending
773 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
776 setup the fd used by the queue
778 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
781 setup a packet queue on a socket
783 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
784 TALLOC_CTX *mem_ctx, int fd, int alignment,
786 ctdb_queue_cb_fn_t callback,
787 void *private_data, const char *fmt, ...)
788 PRINTF_ATTRIBUTE(7,8);
791 allocate a packet for use in client<->daemon communication
793 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
795 enum ctdb_operation operation,
796 size_t length, size_t slength,
798 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
799 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
801 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
803 enum ctdb_operation operation,
804 size_t length, size_t slength,
806 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
807 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
809 int ctdb_queue_length(struct ctdb_queue *queue);
812 lock a record in the ltdb, given a key
814 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
817 unlock a record in the ltdb, given a key
819 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
823 make a ctdb call to the local daemon - async send. Called from client context.
825 This constructs a ctdb_call request and queues it for processing.
826 This call never blocks.
828 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
829 struct ctdb_call *call);
832 make a recv call to the local ctdb daemon - called from client context
834 This is called when the program wants to wait for a ctdb_call to complete and get the
835 results. This call will block unless the call has already completed.
837 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
839 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
840 uint64_t srvid, TDB_DATA data);
845 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
846 uint64_t srvid, TDB_DATA data);
849 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
850 struct ctdb_call *call);
852 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
854 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
855 struct ctdb_call *call,
856 struct ctdb_ltdb_header *header);
858 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
859 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
860 TDB_DATA *data, bool updatetdb, uint32_t caller);
862 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
864 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
866 int ctdb_socket_connect(struct ctdb_context *ctdb);
867 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
869 #define CTDB_BAD_REQID ((uint32_t)-1)
870 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
871 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
872 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
874 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
875 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
877 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
878 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
880 ctdb_control_callback_fn_t callback,
883 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
884 TDB_DATA *outdata, uint64_t tdb_flags,
885 bool persistent, uint32_t client_id,
886 struct ctdb_req_control *c,
889 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
890 ctdb_fn_t fn, int id);
892 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
893 uint32_t opcode, uint32_t flags, TDB_DATA data,
894 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
895 struct timeval *timeout, char **errormsg);
896 int ctdb_control_recv(struct ctdb_context *ctdb,
897 struct ctdb_client_control_state *state,
899 TDB_DATA *outdata, int32_t *status, char **errormsg);
901 struct ctdb_client_control_state *
902 ctdb_control_send(struct ctdb_context *ctdb,
903 uint32_t destnode, uint64_t srvid,
904 uint32_t opcode, uint32_t flags, TDB_DATA data,
906 struct timeval *timeout,
912 #define CHECK_CONTROL_DATA_SIZE(size) do { \
913 if (indata.dsize != size) { \
914 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
915 opcode, (unsigned)indata.dsize, (unsigned)size)); \
920 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
921 if (indata.dsize < size) { \
922 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
923 opcode, (unsigned)indata.dsize, (unsigned)size)); \
928 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
929 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
930 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
931 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
932 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
933 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
936 /* structure used for pulldb control */
937 struct ctdb_control_pulldb {
942 /* structure used for sending lists of records */
943 struct ctdb_marshall_buffer {
949 /* set dmaster control structure */
950 struct ctdb_control_set_dmaster {
956 structure for setting a tunable
958 struct ctdb_control_set_tunable {
965 structure for getting a tunable
967 struct ctdb_control_get_tunable {
973 structure for listing tunables
975 struct ctdb_control_list_tunable {
977 /* returns a : separated list of tunable names */
982 struct ctdb_node_and_flagsv4 {
985 struct sockaddr_in sin;
988 struct ctdb_node_mapv4 {
990 struct ctdb_node_and_flagsv4 nodes[1];
993 struct ctdb_control_wipe_database {
995 uint32_t transaction_id;
999 state of a in-progress ctdb call in client
1001 struct ctdb_client_call_state {
1002 enum call_state state;
1004 struct ctdb_db_context *ctdb_db;
1005 struct ctdb_call *call;
1007 void (*fn)(struct ctdb_client_call_state *);
1013 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
1017 uint32_t client_id);
1018 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1019 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1020 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1021 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1022 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1023 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1024 TDB_DATA *outdata, uint32_t srcnode);
1026 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1027 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
1029 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1030 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1031 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1032 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
1035 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1036 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1038 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1039 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1041 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1043 struct ctdb_ltdb_header *header,
1044 TDB_DATA *key, TDB_DATA *data);
1046 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1047 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1049 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1050 struct ctdb_req_control *c,
1051 TDB_DATA indata, bool *async_reply,
1052 const char **errormsg);
1053 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1054 TDB_DATA *outdata, int32_t status, const char *errormsg);
1056 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1057 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
1059 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1060 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1062 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1064 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1065 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1066 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1067 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1068 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1069 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1070 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1071 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1072 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1075 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1076 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1077 void ctdb_node_dead(struct ctdb_node *node);
1078 void ctdb_node_connected(struct ctdb_node *node);
1079 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1080 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1081 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1083 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1084 pid_t ctdb_fork(struct ctdb_context *ctdb);
1085 pid_t ctdb_fork_no_free_ringbuffer(struct ctdb_context *ctdb);
1086 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1087 bool ctdb_is_child_process(void);
1088 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1090 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1091 struct ctdb_req_control *c,
1094 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1095 struct ctdb_req_control *c,
1098 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1099 struct ctdb_req_control *c,
1102 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1103 struct ctdb_req_control *c,
1106 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1107 struct ctdb_req_control *c,
1109 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1110 struct ctdb_req_control *c,
1113 struct ctdb_public_ipv4 {
1115 struct sockaddr_in sin;
1118 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1119 uint32_t destnode, struct ctdb_public_ip *ip);
1120 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1121 uint32_t destnode, struct ctdb_public_ip *ip);
1123 struct ctdb_all_public_ipsv4 {
1125 struct ctdb_public_ipv4 ips[1];
1128 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1129 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1130 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1131 struct timeval timeout,
1133 TALLOC_CTX *mem_ctx,
1134 struct ctdb_all_public_ips **ips);
1135 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1136 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1137 struct timeval timeout, uint32_t destnode,
1138 TALLOC_CTX *mem_ctx,
1140 struct ctdb_all_public_ips **ips);
1141 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1142 struct timeval timeout, uint32_t destnode,
1143 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1145 struct ctdb_control_iface_info {
1146 char name[CTDB_IFACE_SIZE+2];
1147 uint16_t link_state;
1148 uint32_t references;
1151 struct ctdb_control_public_ip_info {
1152 struct ctdb_public_ip ip;
1153 uint32_t active_idx;
1155 struct ctdb_control_iface_info ifaces[1];
1158 struct ctdb_control_get_ifaces {
1160 struct ctdb_control_iface_info ifaces[1];
1163 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1164 struct ctdb_req_control *c,
1167 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1168 struct ctdb_req_control *c,
1170 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1171 struct ctdb_req_control *c,
1173 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1174 struct timeval timeout, uint32_t destnode,
1175 TALLOC_CTX *mem_ctx,
1176 const ctdb_sock_addr *addr,
1177 struct ctdb_control_public_ip_info **info);
1178 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1179 struct timeval timeout, uint32_t destnode,
1180 TALLOC_CTX *mem_ctx,
1181 struct ctdb_control_get_ifaces **ifaces);
1182 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1183 struct timeval timeout, uint32_t destnode,
1184 TALLOC_CTX *mem_ctx,
1185 const struct ctdb_control_iface_info *info);
1187 /* from takeover/system.c */
1188 uint32_t uint16_checksum(uint16_t *data, size_t n);
1189 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1190 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1191 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1192 bool ctdb_sys_check_iface_exists(const char *iface);
1193 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1194 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1195 const ctdb_sock_addr *src,
1196 uint32_t seq, uint32_t ack, int rst);
1198 /* Details of a byte range lock */
1199 struct ctdb_lock_info {
1206 char *ctdb_get_process_name(pid_t pid);
1207 bool ctdb_get_lock_info(pid_t req_pid, struct ctdb_lock_info *lock_info);
1208 bool ctdb_get_blocker_pid(struct ctdb_lock_info *reqlock, pid_t *blocker_pid);
1210 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1212 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1213 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1216 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1217 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1218 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1219 void lcp2_forcerebalance(struct ctdb_context *ctdb, uint32_t pnn);
1220 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap, client_async_callback fail_callback, void *callback_data);
1222 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1224 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1225 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1226 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1227 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1228 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1229 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1230 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1232 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1233 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1234 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1235 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1236 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1237 TALLOC_CTX *mem_ctx,
1238 void (*callback)(struct ctdb_context *, int, void *),
1241 enum ctdb_eventscript_call call,
1242 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1243 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1245 void set_nonblocking(int fd);
1246 void set_close_on_exec(int fd);
1248 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1250 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1252 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1254 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1255 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1256 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1257 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1258 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1260 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1262 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1264 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1265 struct timeval timeout,
1267 struct ctdb_tunable *tunables);
1269 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1271 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1272 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1273 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1274 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1277 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1278 int ctdb_sys_close_capture_socket(void *private_data);
1279 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);
1281 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1282 struct timeval timeout,
1284 struct ctdb_control_killtcp *killtcp);
1286 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1287 struct timeval timeout,
1289 struct ctdb_control_ip_iface *pub);
1291 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1292 struct timeval timeout,
1294 struct ctdb_control_ip_iface *pub);
1296 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1297 struct timeval timeout,
1299 ctdb_sock_addr *addr,
1300 const char *ifname);
1302 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1303 struct timeval timeout,
1305 TALLOC_CTX *mem_ctx,
1306 ctdb_sock_addr *addr,
1307 struct ctdb_control_tcp_tickle_list **list);
1310 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1313 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1315 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1317 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1319 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1322 int ctdb_attach_databases(struct ctdb_context *ctdb);
1324 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1325 struct ctdb_req_control *c,
1326 TDB_DATA recdata, bool *async_reply);
1327 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1328 struct ctdb_req_control *c, TDB_DATA recdata,
1330 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1331 struct ctdb_req_control *c,
1332 TDB_DATA recdata, bool *async_reply);
1334 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1335 struct ctdb_req_control *c,
1336 TDB_DATA recdata, bool *async_reply);
1338 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1340 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1341 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1342 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1343 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1344 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1345 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1350 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1351 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1353 void ctdb_block_signal(int signum);
1354 void ctdb_unblock_signal(int signum);
1355 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1356 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1357 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1358 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1360 struct client_async_data {
1361 enum ctdb_controls opcode;
1362 bool dont_log_errors;
1364 uint32_t fail_count;
1365 client_async_callback callback;
1366 client_async_callback fail_callback;
1367 void *callback_data;
1369 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1370 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1371 int ctdb_client_async_control(struct ctdb_context *ctdb,
1372 enum ctdb_controls opcode,
1375 struct timeval timeout,
1376 bool dont_log_errors,
1378 client_async_callback client_callback,
1379 client_async_callback fail_callback,
1380 void *callback_data);
1382 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1384 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1386 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1387 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1389 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1390 struct ctdb_req_control *c);
1391 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1392 struct ctdb_req_control *c);
1393 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1394 struct ctdb_req_control *c,
1397 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1398 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1399 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1401 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1402 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1404 extern int script_log_level;
1405 extern bool fast_start;
1406 extern const char *ctdbd_pidfile;
1408 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1412 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1413 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1415 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1416 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1418 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1419 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1421 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1422 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1424 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1425 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1426 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1427 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1428 void ctdb_ban_self(struct ctdb_context *ctdb);
1430 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1432 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1434 int start_syslog_daemon(struct ctdb_context *ctdb);
1436 /* Where to send the log messages back to */
1437 struct ctdb_get_log_addr {
1443 extern int log_ringbuf_size;
1445 void ctdb_collect_log(struct ctdb_context *ctdb, struct ctdb_get_log_addr *log_addr);
1446 void ctdb_clear_log(struct ctdb_context *ctdb);
1447 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1448 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1449 void ctdb_log_ringbuffer_free(void);
1451 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1452 struct ctdb_context *ctdb,
1453 const char *log_prefix,
1454 void (*logfn)(const char *, uint16_t, void *),
1455 void *logfn_private, pid_t *pid);
1457 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1458 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1460 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1464 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1465 struct ctdb_db_context *ctdb_db);
1466 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1467 struct ctdb_db_context *ctdb_db,
1468 const char *reason,/* NULL means healthy */
1469 int num_healthy_nodes);
1470 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1472 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1474 void ctdb_fault_setup(void);
1476 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1477 struct ctdb_all_public_ips *ips);
1478 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1479 struct ctdb_public_ip *ip);
1481 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1483 int ctdb_statistics_init(struct ctdb_context *ctdb);
1485 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1486 struct ctdb_req_control *c,
1489 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1491 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1494 * structure to pass to a schedule_for_deletion_control
1496 struct ctdb_control_schedule_for_deletion {
1498 struct ctdb_ltdb_header hdr;
1500 uint8_t key[1]; /* key[] */
1503 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1507 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1508 const struct ctdb_ltdb_header *hdr,
1511 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1512 const struct ctdb_ltdb_header *hdr,
1513 const TDB_DATA key);
1515 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1517 /* For unit testing ctdb_transaction.c. */
1518 struct ctdb_public_ip_list {
1519 struct ctdb_public_ip_list *next;
1521 ctdb_sock_addr addr;
1523 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1525 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1527 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1529 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);
1531 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1533 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);
1535 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1537 int ctdb_null_func(struct ctdb_call_info *call);
1539 int ctdb_fetch_func(struct ctdb_call_info *call);
1541 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1543 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1547 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1550 description for a message to reload all ips via recovery master/daemon
1552 struct reloadips_all_reply {
1557 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1559 int ctdb_start_monitoring_interfaces(struct ctdb_context *ctdb);
1561 /* from server/ctdb_lock.c */
1562 struct lock_request;
1564 int ctdb_lockall_prio(struct ctdb_context *ctdb, uint32_t priority);
1565 int ctdb_unlockall_prio(struct ctdb_context *ctdb, uint32_t priority);
1566 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1567 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1569 void ctdb_lock_free_request_context(struct lock_request *lock_req);
1571 struct lock_request *ctdb_lock_record(struct ctdb_db_context *ctdb_db,
1574 void (*callback)(void *, bool),
1575 void *private_data);
1577 struct lock_request *ctdb_lock_db(struct ctdb_db_context *ctdb_db,
1579 void (*callback)(void *, bool),
1580 void *private_data);
1582 struct lock_request *ctdb_lock_alldb_prio(struct ctdb_context *ctdb,
1585 void (*callback)(void *, bool),
1586 void *private_data);
1588 struct lock_request *ctdb_lock_alldb(struct ctdb_context *ctdb,
1590 void (*callback)(void *, bool),
1591 void *private_data);