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 * Structures to support SRVID requests and replies
29 struct srvid_request {
34 struct srvid_request_data {
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_max_run_time;
106 uint32_t repack_limit;
107 uint32_t vacuum_limit;
108 uint32_t max_queue_depth_drop_msg;
109 uint32_t allow_unhealthy_db_read;
110 uint32_t stat_history_interval;
111 uint32_t deferred_attach_timeout;
112 uint32_t vacuum_fast_path_count;
113 uint32_t lcp2_public_ip_assignment;
114 uint32_t allow_client_db_attach;
115 uint32_t recover_pdb_by_seqnum;
116 uint32_t deferred_rebalance_on_node_add;
117 uint32_t fetch_collapse;
118 uint32_t hopcount_make_sticky;
119 uint32_t sticky_duration;
120 uint32_t sticky_pindown;
121 uint32_t no_ip_takeover;
122 uint32_t db_record_count_warn;
123 uint32_t db_record_size_warn;
124 uint32_t db_size_warn;
125 uint32_t pulldb_preallocation_size;
126 uint32_t no_ip_host_on_all_disabled;
127 uint32_t samba3_hack;
128 uint32_t mutex_enabled;
129 uint32_t lock_processes_per_db;
133 an installed ctdb remote call
135 struct ctdb_registered_call {
136 struct ctdb_registered_call *next, *prev;
142 check that a pnn is valid
144 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
147 /* called from the queue code when a packet comes in. Called with data==NULL
149 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
152 /* used for callbacks in ctdb_control requests */
153 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
154 int32_t status, TDB_DATA data,
155 const char *errormsg,
158 structure describing a connected client in the daemon
161 struct ctdb_context *ctdb;
163 struct ctdb_queue *queue;
166 struct ctdb_tcp_list *tcp_list;
168 uint32_t num_persistent_updates;
169 struct ctdb_client_notify_list *notify;
174 /* state associated with a public ip address */
176 struct ctdb_vnn *prev, *next;
178 struct ctdb_iface *iface;
180 ctdb_sock_addr public_address;
181 uint8_t public_netmask_bits;
183 /* the node number that is serving this public address, if any.
184 If no node serves this ip it is set to -1 */
187 /* List of clients to tickle for this public address */
188 struct ctdb_tcp_array *tcp_array;
190 /* whether we need to update the other nodes with changes to our list
191 of connected clients */
192 bool tcp_update_needed;
194 /* a context to hang sending gratious arp events off */
195 TALLOC_CTX *takeover_ctx;
197 struct ctdb_kill_tcp *killtcp;
199 /* Set to true any time an update to this VNN is in flight.
200 This helps to avoid races. */
201 bool update_in_flight;
203 /* If CTDB_CONTROL_DEL_PUBLIC_IP is received for this IP
204 * address then this flag is set. It will be deleted in the
205 * release IP callback. */
210 state associated with one node
213 struct ctdb_context *ctdb;
214 ctdb_sock_addr address;
215 const char *name; /* for debug messages */
216 void *private_data; /* private to transport */
220 /* used by the dead node monitoring */
225 /* a list of controls pending to this node, so we can time them out quickly
226 if the node becomes disconnected */
227 struct daemon_control_state *pending_controls;
229 /* used by the recovery daemon when distributing ip addresses
230 across the nodes. it needs to know which public ip's can be handled
233 struct ctdb_all_public_ips *known_public_ips;
234 struct ctdb_all_public_ips *available_public_ips;
235 /* used by the recovery dameon to track when a node should be banned */
236 struct ctdb_banning_state *ban_state;
240 transport specific methods
242 struct ctdb_methods {
243 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
244 int (*start)(struct ctdb_context *); /* start the transport */
245 int (*add_node)(struct ctdb_node *); /* setup a new node */
246 int (*connect_node)(struct ctdb_node *); /* connect to node */
247 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
248 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
249 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
250 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
254 transport calls up to the ctdb layer
256 struct ctdb_upcalls {
257 /* recv_pkt is called when a packet comes in */
258 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
260 /* node_dead is called when an attempt to send to a node fails */
261 void (*node_dead)(struct ctdb_node *);
263 /* node_connected is called when a connection to a node is established */
264 void (*node_connected)(struct ctdb_node *);
267 /* list of message handlers - needs to be changed to a more efficient data
268 structure so we can find a message handler given a srvid quickly */
269 struct ctdb_message_list_header {
270 struct ctdb_message_list_header *next, *prev;
271 struct ctdb_context *ctdb;
273 struct ctdb_message_list *m;
275 struct ctdb_message_list {
276 struct ctdb_message_list *next, *prev;
277 struct ctdb_message_list_header *h;
278 ctdb_msg_fn_t message_handler;
279 void *message_private;
282 /* additional data required for the daemon mode */
283 struct ctdb_daemon_data {
286 struct ctdb_queue *queue;
290 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
292 if (value > ctdb->statistics.counter) { \
293 ctdb->statistics.counter = c->hopcount; \
295 if (value > ctdb->statistics_current.counter) { \
296 ctdb->statistics_current.counter = c->hopcount; \
300 #define CTDB_INCREMENT_STAT(ctdb, counter) \
302 ctdb->statistics.counter++; \
303 ctdb->statistics_current.counter++; \
306 #define CTDB_DECREMENT_STAT(ctdb, counter) \
308 if (ctdb->statistics.counter > 0) \
309 ctdb->statistics.counter--; \
310 if (ctdb->statistics_current.counter > 0) \
311 ctdb->statistics_current.counter--; \
314 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
316 ctdb_db->statistics.counter++; \
319 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
321 if (ctdb_db->statistics.counter > 0) \
322 ctdb_db->statistics.counter--; \
325 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
327 if (value > ctdb->statistics.counter.max) \
328 ctdb->statistics.counter.max = value; \
329 if (value > ctdb->statistics_current.counter.max) \
330 ctdb->statistics_current.counter.max = value; \
332 if (ctdb->statistics.counter.num == 0 || \
333 value < ctdb->statistics.counter.min) \
334 ctdb->statistics.counter.min = value; \
335 if (ctdb->statistics_current.counter.num == 0 || \
336 value < ctdb->statistics_current.counter.min) \
337 ctdb->statistics_current.counter.min = value; \
339 ctdb->statistics.counter.total += value; \
340 ctdb->statistics_current.counter.total += value; \
342 ctdb->statistics.counter.num++; \
343 ctdb->statistics_current.counter.num++; \
345 if (ctdb->tunable.reclock_latency_ms != 0) { \
346 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
348 ("High RECLOCK latency %fs for operation %s\n", \
354 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
356 if (value > ctdb_db->statistics.counter.max) \
357 ctdb_db->statistics.counter.max = value; \
358 if (ctdb_db->statistics.counter.num == 0 || \
359 value < ctdb_db->statistics.counter.min) \
360 ctdb_db->statistics.counter.min = value; \
362 ctdb_db->statistics.counter.total += value; \
363 ctdb_db->statistics.counter.num++; \
365 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
366 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
368 ("High latency %.6fs for operation %s on database %s\n",\
369 value, operation, ctdb_db->db_name)); \
374 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
376 double l = timeval_elapsed(&t); \
378 if (l > ctdb->statistics.counter.max) \
379 ctdb->statistics.counter.max = l; \
380 if (l > ctdb->statistics_current.counter.max) \
381 ctdb->statistics_current.counter.max = l; \
383 if (ctdb->statistics.counter.num == 0 || \
384 l < ctdb->statistics.counter.min) \
385 ctdb->statistics.counter.min = l; \
386 if (ctdb->statistics_current.counter.num == 0 || \
387 l < ctdb->statistics_current.counter.min) \
388 ctdb->statistics_current.counter.min = l; \
390 ctdb->statistics.counter.total += l; \
391 ctdb->statistics_current.counter.total += l; \
393 ctdb->statistics.counter.num++; \
394 ctdb->statistics_current.counter.num++; \
396 if (ctdb->tunable.log_latency_ms != 0) { \
397 if (l*1000 > ctdb->tunable.log_latency_ms) { \
398 DEBUG(DEBUG_WARNING, \
399 ("High latency %.6fs for operation %s on database %s\n",\
400 l, operation, db->db_name)); \
407 /* a structure that contains the elements required for the write record
410 struct ctdb_write_record {
414 unsigned char blob[1];
417 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
420 CTDB_RUNSTATE_UNKNOWN,
423 CTDB_RUNSTATE_FIRST_RECOVERY,
424 CTDB_RUNSTATE_STARTUP,
425 CTDB_RUNSTATE_RUNNING,
426 CTDB_RUNSTATE_SHUTDOWN,
429 const char *runstate_to_string(enum ctdb_runstate runstate);
430 enum ctdb_runstate runstate_from_string(const char *label);
431 void ctdb_set_runstate(struct ctdb_context *ctdb, enum ctdb_runstate runstate);
433 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
435 #define CTDB_MONITORING_ACTIVE 0
436 #define CTDB_MONITORING_DISABLED 1
438 #define NUM_DB_PRIORITIES 3
439 /* main state of the ctdb daemon */
440 struct ctdb_context {
441 struct tevent_context *ev;
442 struct timeval ctdbd_start_time;
443 struct timeval last_recovery_started;
444 struct timeval last_recovery_finished;
445 uint32_t recovery_mode;
446 TALLOC_CTX *tickle_update_context;
447 TALLOC_CTX *keepalive_ctx;
448 TALLOC_CTX *check_public_ifaces_ctx;
449 struct ctdb_tunable tunable;
450 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
451 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
452 bool freeze_transaction_started;
453 uint32_t freeze_transaction_id;
454 ctdb_sock_addr *address;
456 const char *db_directory;
457 const char *db_directory_persistent;
458 const char *db_directory_state;
459 struct tdb_wrap *db_persistent_health;
460 uint32_t db_persistent_startup_generation;
461 uint64_t db_persistent_check_errors;
462 uint64_t max_persistent_check_errors;
463 const char *transport;
464 char *recovery_lock_file;
465 int recovery_lock_fd;
466 uint32_t pnn; /* our own pnn */
468 uint32_t num_connected;
470 uint32_t capabilities;
471 struct idr_context *idr;
473 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
474 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
475 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
476 struct ctdb_iface *ifaces; /* list of local interfaces */
478 const struct ctdb_methods *methods; /* transport methods */
479 const struct ctdb_upcalls *upcalls; /* transport upcalls */
480 void *private_data; /* private to transport */
481 struct ctdb_db_context *db_list;
482 struct ctdb_message_list_header *message_list_header;
483 struct tdb_context *message_list_indexdb;
484 struct ctdb_daemon_data daemon;
485 struct ctdb_statistics statistics;
486 struct ctdb_statistics statistics_current;
487 #define MAX_STAT_HISTORY 100
488 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
489 struct ctdb_vnn_map *vnn_map;
490 uint32_t num_clients;
491 uint32_t recovery_master;
492 struct ctdb_client_ip *client_ip_list;
493 bool do_checkpublicip;
494 struct trbt_tree *server_ids;
496 const char *event_script_dir;
497 const char *notification_script;
498 const char *default_public_interface;
501 enum ctdb_runstate runstate;
502 struct ctdb_monitor_state *monitor;
503 int start_as_disabled;
504 int start_as_stopped;
506 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
507 uint32_t *recd_ping_count;
508 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
509 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
511 TALLOC_CTX *event_script_ctx;
514 struct ctdb_event_script_state *current_monitor;
515 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
517 TALLOC_CTX *banning_ctx;
519 struct ctdb_vacuum_child_context *vacuumers;
521 /* mapping from pid to ctdb_client * */
522 struct ctdb_client_pid_list *client_pids;
524 /* used in the recovery daemon to remember the ip allocation */
525 struct trbt_tree *ip_tree;
527 /* Used to defer db attach requests while in recovery mode */
528 struct ctdb_deferred_attach_context *deferred_attach;
530 /* if we are a child process, do we have a domain socket to send controls on */
531 bool can_send_controls;
533 /* list of event script callback functions that are active */
534 struct event_script_callback *script_callbacks;
536 struct ctdb_reloadips_handle *reload_ips;
538 const char *nodes_file;
539 const char *public_addresses_file;
540 struct trbt_tree *child_processes;
542 /* Used for locking record/db/alldb */
543 struct lock_context *lock_current;
544 struct lock_context *lock_pending;
547 struct ctdb_db_context {
548 struct ctdb_db_context *next, *prev;
549 struct ctdb_context *ctdb;
553 bool readonly; /* Do we support read-only delegations ? */
554 bool sticky; /* Do we support sticky records ? */
557 struct tdb_wrap *ltdb;
558 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
559 struct ctdb_registered_call *calls; /* list of registered calls */
561 struct timed_event *seqnum_update;
562 struct ctdb_traverse_local_handle *traverse;
563 struct ctdb_vacuum_handle *vacuum_handle;
564 char *unhealthy_reason;
565 int pending_requests;
566 struct revokechild_handle *revokechild_active;
567 struct ctdb_persistent_state *persistent_state;
568 struct trbt_tree *delete_queue;
569 struct trbt_tree *sticky_records;
570 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
572 struct ctdb_ltdb_header *header,
575 /* used to track which records we are currently fetching
576 so we can avoid sending duplicate fetch requests
578 struct trbt_tree *deferred_fetch;
579 struct trbt_tree *defer_dmaster;
581 struct ctdb_db_statistics statistics;
583 struct lock_context *lock_current;
584 struct lock_context *lock_pending;
585 int lock_num_current;
587 struct ctdb_call_state *pending_calls;
589 enum ctdb_freeze_mode freeze_mode;
590 struct ctdb_db_freeze_handle *freeze_handle;
591 bool freeze_transaction_started;
592 uint32_t freeze_transaction_id;
597 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
598 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
599 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
600 return -1; }} while (0)
602 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
603 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
604 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
607 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
608 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
609 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
610 return NULL; }} while (0)
612 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
613 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
614 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
618 struct holding a ctdb_sock_addr and an interface name,
619 used to add/remove public addresses
621 struct ctdb_control_ip_iface {
629 struct holding a ctdb_sock_addr and an interface name,
630 used for send_gratious_arp
632 struct ctdb_control_gratious_arp {
640 persistent store control - update this record on all other nodes
642 struct ctdb_control_persistent_store {
649 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
651 struct ctdb_node_flag_change {
658 struct for admin setting a ban
660 struct ctdb_ban_info {
665 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
667 #define CTDB_LMASTER_ANY 0xffffffff
670 state of a in-progress ctdb call
672 struct ctdb_call_state {
673 struct ctdb_call_state *next, *prev;
674 enum call_state state;
676 struct ctdb_req_call *c;
677 struct ctdb_db_context *ctdb_db;
679 struct ctdb_call *call;
682 void (*fn)(struct ctdb_call_state *);
688 /* used for fetch_lock */
689 struct ctdb_fetch_handle {
690 struct ctdb_db_context *ctdb_db;
693 struct ctdb_ltdb_header header;
696 /* internal prototypes */
697 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
698 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
699 void ctdb_die(struct ctdb_context *ctdb, const char *msg);
700 bool ctdb_set_helper(const char *type, char *helper, size_t size,
701 const char *envvar, const char *dir, const char *file);
702 void ctdb_external_trace(void);
703 bool ctdb_same_address(ctdb_sock_addr *a1, ctdb_sock_addr *a2);
704 int ctdb_parse_address(TALLOC_CTX *mem_ctx, const char *str,
705 ctdb_sock_addr *address);
706 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
707 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
708 uint32_t ctdb_hash(const TDB_DATA *key);
709 uint32_t *ctdb_key_to_idkey(TALLOC_CTX *mem_ctx, TDB_DATA key);
711 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
712 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
713 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
714 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
715 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
716 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
718 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
719 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
720 TDB_DATA key, struct ctdb_ltdb_header *header,
721 TALLOC_CTX *mem_ctx, TDB_DATA *data);
722 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
723 struct ctdb_ltdb_header *header, TDB_DATA data);
724 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
725 int ctdb_ltdb_fetch_with_header(struct ctdb_db_context *ctdb_db,
726 TDB_DATA key, struct ctdb_ltdb_header *header,
727 TALLOC_CTX *mem_ctx, TDB_DATA *data);
728 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
729 struct ctdb_req_control *c,
731 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
732 struct ctdb_req_control *c,
734 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
735 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
736 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
737 TDB_DATA key, struct ctdb_req_header *hdr,
738 void (*recv_pkt)(void *, struct ctdb_req_header *),
739 void *recv_context, bool ignore_generation);
740 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
741 TDB_DATA key, struct ctdb_ltdb_header *header,
742 struct ctdb_req_header *hdr, TDB_DATA *data,
743 void (*recv_pkt)(void *, struct ctdb_req_header *),
744 void *recv_context, bool ignore_generation);
745 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
747 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
748 struct ctdb_call *call,
749 struct ctdb_ltdb_header *header,
753 int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
756 queue a packet for sending
758 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
761 setup the fd used by the queue
763 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
766 setup a packet queue on a socket
768 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
769 TALLOC_CTX *mem_ctx, int fd, int alignment,
771 ctdb_queue_cb_fn_t callback,
772 void *private_data, const char *fmt, ...)
773 PRINTF_ATTRIBUTE(7,8);
776 allocate a packet for use in client<->daemon communication
778 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
780 enum ctdb_operation operation,
781 size_t length, size_t slength,
783 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
784 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
786 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
788 enum ctdb_operation operation,
789 size_t length, size_t slength,
791 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
792 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
794 int ctdb_queue_length(struct ctdb_queue *queue);
797 lock a record in the ltdb, given a key
799 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
802 unlock a record in the ltdb, given a key
804 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
807 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
808 uint64_t srvid, TDB_DATA data);
813 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
814 uint64_t srvid, TDB_DATA data);
817 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
819 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
820 struct ctdb_call *call,
821 struct ctdb_ltdb_header *header);
823 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
824 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
825 TDB_DATA *data, bool updatetdb);
827 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
829 int ctdb_socket_connect(struct ctdb_context *ctdb);
830 void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
832 #define CTDB_BAD_REQID ((uint32_t)-1)
833 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
834 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
835 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
837 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
838 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
840 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
841 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
843 ctdb_control_callback_fn_t callback,
846 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
847 TDB_DATA *outdata, uint64_t tdb_flags,
848 bool persistent, uint32_t client_id,
849 struct ctdb_req_control *c,
851 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
854 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
855 ctdb_fn_t fn, int id);
857 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
858 uint32_t opcode, uint32_t flags, TDB_DATA data,
859 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
860 struct timeval *timeout, char **errormsg);
861 int ctdb_control_recv(struct ctdb_context *ctdb,
862 struct ctdb_client_control_state *state,
864 TDB_DATA *outdata, int32_t *status, char **errormsg);
866 struct ctdb_client_control_state *
867 ctdb_control_send(struct ctdb_context *ctdb,
868 uint32_t destnode, uint64_t srvid,
869 uint32_t opcode, uint32_t flags, TDB_DATA data,
871 struct timeval *timeout,
877 #define CHECK_CONTROL_DATA_SIZE(size) do { \
878 if (indata.dsize != size) { \
879 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
880 opcode, (unsigned)indata.dsize, (unsigned)size)); \
885 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
886 if (indata.dsize < size) { \
887 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
888 opcode, (unsigned)indata.dsize, (unsigned)size)); \
893 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
894 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
895 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
896 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
897 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
900 /* structure used for pulldb control */
901 struct ctdb_control_pulldb {
906 /* structure used for sending lists of records */
907 struct ctdb_marshall_buffer {
914 structure for setting a tunable
916 struct ctdb_control_set_tunable {
923 structure for getting a tunable
925 struct ctdb_control_get_tunable {
931 structure for listing tunables
933 struct ctdb_control_list_tunable {
935 /* returns a : separated list of tunable names */
940 struct ctdb_control_transdb {
942 uint32_t transaction_id;
946 state of a in-progress ctdb call in client
948 struct ctdb_client_call_state {
949 enum call_state state;
951 struct ctdb_db_context *ctdb_db;
952 struct ctdb_call *call;
954 void (*fn)(struct ctdb_client_call_state *);
960 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
965 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
966 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
967 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
968 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
969 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
970 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
971 TDB_DATA *outdata, uint32_t srcnode);
973 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
974 bool ctdb_check_message_handler(struct ctdb_context *ctdb, uint64_t srvid);
976 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
977 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
978 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
979 int daemon_check_srvids(struct ctdb_context *ctdb, TDB_DATA indata,
982 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
983 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
985 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
986 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
988 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
990 struct ctdb_ltdb_header *header,
991 TDB_DATA *key, TDB_DATA *data);
993 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
994 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
996 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
997 struct ctdb_req_control *c,
998 TDB_DATA indata, bool *async_reply,
999 const char **errormsg);
1000 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1001 TDB_DATA *outdata, int32_t status, const char *errormsg);
1003 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
1004 struct ctdb_req_control *c,
1005 uint32_t db_id, bool *async_reply);
1006 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
1008 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1009 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority,
1010 bool check_recmode);
1011 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
1012 bool ctdb_db_prio_frozen(struct ctdb_context *ctdb, uint32_t priority);
1013 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
1015 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1016 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1018 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1020 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1021 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1022 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1023 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
1024 int ctdb_tcp_init(struct ctdb_context *ctdb);
1025 int ctdb_ibw_init(struct ctdb_context *ctdb);
1026 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1027 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1028 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1029 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1030 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1033 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1034 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
1035 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1036 void ctdb_node_dead(struct ctdb_node *node);
1037 void ctdb_node_connected(struct ctdb_node *node);
1038 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1039 bool set_scheduler(void);
1040 void reset_scheduler(void);
1042 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
1043 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
1044 pid_t ctdb_fork(struct ctdb_context *ctdb);
1045 void ctdb_set_child_info(TALLOC_CTX *mem_ctx, const char *child_name_fmt, ...);
1046 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
1048 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1049 struct ctdb_req_control *c,
1052 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1053 struct ctdb_req_control *c,
1056 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
1057 struct ctdb_req_control *c,
1059 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1060 struct ctdb_req_control *c,
1062 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1063 struct ctdb_req_control *c,
1066 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1067 uint32_t destnode, struct ctdb_public_ip *ip);
1068 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1069 uint32_t destnode, struct ctdb_public_ip *ip);
1071 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
1072 struct ctdb_req_control *c,
1074 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1075 struct timeval timeout,
1077 TALLOC_CTX *mem_ctx,
1078 struct ctdb_all_public_ips **ips);
1079 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1080 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1081 struct timeval timeout, uint32_t destnode,
1082 TALLOC_CTX *mem_ctx,
1084 struct ctdb_all_public_ips **ips);
1086 struct ctdb_control_iface_info {
1087 char name[CTDB_IFACE_SIZE+2];
1088 uint16_t link_state;
1089 uint32_t references;
1092 struct ctdb_control_public_ip_info {
1093 struct ctdb_public_ip ip;
1094 uint32_t active_idx;
1096 struct ctdb_control_iface_info ifaces[1];
1099 struct ctdb_control_get_ifaces {
1101 struct ctdb_control_iface_info ifaces[1];
1104 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1105 struct ctdb_req_control *c,
1108 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1109 struct ctdb_req_control *c,
1111 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1112 struct ctdb_req_control *c,
1114 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1115 struct timeval timeout, uint32_t destnode,
1116 TALLOC_CTX *mem_ctx,
1117 const ctdb_sock_addr *addr,
1118 struct ctdb_control_public_ip_info **info);
1119 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1120 struct timeval timeout, uint32_t destnode,
1121 TALLOC_CTX *mem_ctx,
1122 struct ctdb_control_get_ifaces **ifaces);
1123 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1124 struct timeval timeout, uint32_t destnode,
1125 TALLOC_CTX *mem_ctx,
1126 const struct ctdb_control_iface_info *info);
1128 /* from takeover/system.c */
1129 uint32_t uint16_checksum(uint16_t *data, size_t n);
1130 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1131 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1132 char *ctdb_sys_find_ifname(ctdb_sock_addr *addr);
1133 bool ctdb_sys_check_iface_exists(const char *iface);
1134 int ctdb_get_peer_pid(const int fd, pid_t *peer_pid);
1135 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1136 const ctdb_sock_addr *src,
1137 uint32_t seq, uint32_t ack, int rst);
1139 /* Details of a byte range lock */
1140 struct ctdb_lock_info {
1147 int ctdb_set_process_name(const char *name);
1149 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1151 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
1152 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1155 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1156 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap,
1157 uint32_t *force_rebalance_nodes,
1158 client_async_callback fail_callback, void *callback_data);
1160 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1162 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1163 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1164 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1165 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1166 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1167 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1168 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1170 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1171 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1172 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1173 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1174 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1175 TALLOC_CTX *mem_ctx,
1176 void (*callback)(struct ctdb_context *, int, void *),
1178 enum ctdb_eventscript_call call,
1179 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1180 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1182 void set_nonblocking(int fd);
1183 void set_close_on_exec(int fd);
1185 bool ctdb_recovery_have_lock(struct ctdb_context *ctdb);
1186 bool ctdb_recovery_lock(struct ctdb_context *ctdb);
1187 void ctdb_recovery_unlock(struct ctdb_context *ctdb);
1189 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1191 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1193 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1194 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1195 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1196 int32_t ctdb_control_receive_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1197 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1198 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
1199 struct ctdb_req_control *c,
1200 TDB_DATA recdata, bool *async_reply);
1202 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1204 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1206 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1207 struct timeval timeout,
1209 struct ctdb_tunable *tunables);
1211 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1212 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1213 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1214 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1217 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1218 int ctdb_sys_close_capture_socket(void *private_data);
1219 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);
1221 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1222 struct timeval timeout,
1224 struct ctdb_tcp_connection *killtcp);
1226 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1227 struct timeval timeout,
1229 struct ctdb_control_ip_iface *pub);
1231 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1232 struct timeval timeout,
1234 struct ctdb_control_ip_iface *pub);
1236 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1237 struct timeval timeout,
1239 ctdb_sock_addr *addr,
1240 const char *ifname);
1242 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1243 struct timeval timeout,
1245 TALLOC_CTX *mem_ctx,
1246 ctdb_sock_addr *addr,
1247 struct ctdb_control_tcp_tickle_list **list);
1250 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1253 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1255 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1257 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1259 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1262 int ctdb_attach_databases(struct ctdb_context *ctdb);
1264 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1265 struct ctdb_req_control *c,
1266 TDB_DATA recdata, bool *async_reply);
1267 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1268 struct ctdb_req_control *c, TDB_DATA recdata,
1271 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1272 struct ctdb_req_control *c,
1273 TDB_DATA recdata, bool *async_reply);
1275 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1277 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
1279 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
1281 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
1284 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1285 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1286 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1287 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1288 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1289 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1294 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1296 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1297 bool ctdb_stopped_monitoring(struct ctdb_context *ctdb);
1298 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1299 void lockdown_memory(bool valgrinding);
1301 struct client_async_data {
1302 enum ctdb_controls opcode;
1303 bool dont_log_errors;
1305 uint32_t fail_count;
1306 client_async_callback callback;
1307 client_async_callback fail_callback;
1308 void *callback_data;
1310 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1311 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1312 int ctdb_client_async_control(struct ctdb_context *ctdb,
1313 enum ctdb_controls opcode,
1316 struct timeval timeout,
1317 bool dont_log_errors,
1319 client_async_callback client_callback,
1320 client_async_callback fail_callback,
1321 void *callback_data);
1323 struct ctdb_node_map *
1324 ctdb_node_list_to_map(struct ctdb_node **nodes, uint32_t num_nodes,
1325 TALLOC_CTX *mem_ctx);
1326 struct ctdb_node_map *ctdb_read_nodes_file(TALLOC_CTX *mem_ctx,
1328 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1330 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1332 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1333 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1335 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1336 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1337 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1339 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1340 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1342 extern int script_log_level;
1343 extern bool fast_start;
1344 extern const char *ctdbd_pidfile;
1346 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1350 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1352 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
1353 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1355 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1356 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1358 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1359 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1361 void ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1362 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1363 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1364 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata,
1365 uint32_t client_id);
1366 void ctdb_ban_self(struct ctdb_context *ctdb);
1368 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1370 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1372 struct ctdb_log_state *ctdb_vfork_with_logging(TALLOC_CTX *mem_ctx,
1373 struct ctdb_context *ctdb,
1374 const char *log_prefix,
1377 const char **helper_argv,
1378 void (*logfn)(const char *, uint16_t, void *),
1379 void *logfn_private, pid_t *pid);
1382 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1383 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1385 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1389 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1390 struct ctdb_db_context *ctdb_db);
1391 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1392 struct ctdb_db_context *ctdb_db,
1393 const char *reason,/* NULL means healthy */
1394 int num_healthy_nodes);
1395 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1397 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1399 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1400 struct ctdb_all_public_ips *ips,
1402 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1403 struct ctdb_public_ip *ip);
1404 void clear_ip_assignment_tree(struct ctdb_context *ctdb);
1406 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1408 int ctdb_statistics_init(struct ctdb_context *ctdb);
1410 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1411 struct ctdb_req_control *c,
1414 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1416 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1419 * structure to pass to a schedule_for_deletion_control
1421 struct ctdb_control_schedule_for_deletion {
1423 struct ctdb_ltdb_header hdr;
1425 uint8_t key[1]; /* key[] */
1428 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1432 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1433 const struct ctdb_ltdb_header *hdr,
1436 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1437 const struct ctdb_ltdb_header *hdr,
1438 const TDB_DATA key);
1440 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1442 int ctdb_trackingdb_add_pnn(struct ctdb_context *ctdb, TDB_DATA *data, uint32_t pnn);
1444 typedef void (*ctdb_trackingdb_cb)(struct ctdb_context *ctdb, uint32_t pnn, void *private_data);
1446 void ctdb_trackingdb_traverse(struct ctdb_context *ctdb, TDB_DATA data, ctdb_trackingdb_cb cb, void *private_data);
1448 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);
1450 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
1452 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);
1454 int ctdb_set_db_readonly(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1456 int ctdb_null_func(struct ctdb_call_info *call);
1458 int ctdb_fetch_func(struct ctdb_call_info *call);
1460 int ctdb_fetch_with_header_func(struct ctdb_call_info *call);
1462 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
1464 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
1468 int ctdb_set_db_sticky(struct ctdb_context *ctdb, struct ctdb_db_context *ctdb_db);
1471 description for a message to reload all ips via recovery master/daemon
1473 struct reloadips_all_reply {
1478 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1480 /* from server/ctdb_lock.c */
1481 struct lock_request;
1483 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
1484 void *private_data);
1486 int ctdb_db_prio_iterator(struct ctdb_context *ctdb, uint32_t priority,
1487 ctdb_db_handler_t handler, void *private_data);
1488 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
1489 void *private_data);
1491 int ctdb_lockall_mark_prio(struct ctdb_context *ctdb, uint32_t priority);
1492 int ctdb_lockall_unmark_prio(struct ctdb_context *ctdb, uint32_t priority);
1494 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
1495 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
1497 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
1498 struct ctdb_db_context *ctdb_db,
1501 void (*callback)(void *, bool),
1502 void *private_data);
1504 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
1505 struct ctdb_db_context *ctdb_db,
1507 void (*callback)(void *, bool),
1508 void *private_data);
1510 struct lock_request *ctdb_lock_alldb_prio(TALLOC_CTX *mem_ctx,
1511 struct ctdb_context *ctdb,
1514 void (*callback)(void *, bool),
1515 void *private_data);
1517 struct lock_request *ctdb_lock_alldb(TALLOC_CTX *mem_ctx,
1518 struct ctdb_context *ctdb,
1520 void (*callback)(void *, bool),
1521 void *private_data);
1523 int mkdir_p(const char *dir, int mode);
1524 void mkdir_p_or_die(const char *dir, int mode);
1526 ssize_t sys_read(int fd, void *buf, size_t count);
1527 ssize_t sys_write(int fd, const void *buf, size_t count);