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
50 struct ctdb_tcp_connection {
51 ctdb_sock_addr src_addr;
52 ctdb_sock_addr dst_addr;
55 /* the wire representation for a tcp tickle array */
56 struct ctdb_tcp_wire_array {
58 struct ctdb_tcp_connection connections[1];
61 /* the list of tcp tickles used by get/set tcp tickle list */
62 struct ctdb_control_tcp_tickle_list {
64 struct ctdb_tcp_wire_array tickles;
68 array of tcp connections
70 struct ctdb_tcp_array {
72 struct ctdb_tcp_connection *connections;
76 /* all tunable variables go in here */
78 uint32_t max_redirect_count;
79 uint32_t seqnum_interval; /* unit is ms */
80 uint32_t control_timeout;
81 uint32_t traverse_timeout;
82 uint32_t keepalive_interval;
83 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 verbose_memory_names;
104 uint32_t recd_ping_timeout;
105 uint32_t recd_ping_failcount;
106 uint32_t log_latency_ms;
107 uint32_t reclock_latency_ms;
108 uint32_t recovery_drop_all_ips;
109 uint32_t verify_recovery_lock;
110 uint32_t vacuum_default_interval;
111 uint32_t vacuum_max_run_time;
112 uint32_t repack_limit;
113 uint32_t vacuum_limit;
114 uint32_t vacuum_min_interval;
115 uint32_t vacuum_max_interval;
116 uint32_t max_queue_depth_drop_msg;
117 uint32_t use_status_events_for_monitoring;
118 uint32_t allow_unhealthy_db_read;
122 an installed ctdb remote call
124 struct ctdb_registered_call {
125 struct ctdb_registered_call *next, *prev;
131 this address structure might need to be generalised later for some
134 struct ctdb_address {
140 check that a pnn is valid
142 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
145 /* called from the queue code when a packet comes in. Called with data==NULL
147 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
150 /* used for callbacks in ctdb_control requests */
151 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
152 int32_t status, TDB_DATA data,
153 const char *errormsg,
156 structure describing a connected client in the daemon
159 struct ctdb_context *ctdb;
161 struct ctdb_queue *queue;
164 struct ctdb_tcp_list *tcp_list;
166 uint32_t num_persistent_updates;
167 struct ctdb_client_notify_list *notify;
172 /* state associated with a public ip address */
174 struct ctdb_vnn *prev, *next;
176 struct ctdb_iface *iface;
178 ctdb_sock_addr public_address;
179 uint8_t public_netmask_bits;
181 /* the node number that is serving this public address, if any.
182 If no node serves this ip it is set to -1 */
185 /* List of clients to tickle for this public address */
186 struct ctdb_tcp_array *tcp_array;
188 /* whether we need to update the other nodes with changes to our list
189 of connected clients */
190 bool tcp_update_needed;
192 /* a context to hang sending gratious arp events off */
193 TALLOC_CTX *takeover_ctx;
195 struct ctdb_kill_tcp *killtcp;
199 state associated with one node
202 struct ctdb_context *ctdb;
203 struct ctdb_address address;
204 const char *name; /* for debug messages */
205 void *private_data; /* private to transport */
207 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
208 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
209 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
210 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
211 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
212 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
213 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
214 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
217 /* used by the dead node monitoring */
222 /* used to track node capabilities, is only valid/tracked inside the
225 uint32_t capabilities;
227 /* a list of controls pending to this node, so we can time them out quickly
228 if the node becomes disconnected */
229 struct daemon_control_state *pending_controls;
231 /* used by the recovery daemon when distributing ip addresses
232 across the nodes. it needs to know which public ip's can be handled
235 struct ctdb_all_public_ips *known_public_ips;
236 struct ctdb_all_public_ips *available_public_ips;
237 /* used by the recovery dameon to track when a node should be banned */
238 struct ctdb_banning_state *ban_state;
242 transport specific methods
244 struct ctdb_methods {
245 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
246 int (*start)(struct ctdb_context *); /* start the transport */
247 int (*add_node)(struct ctdb_node *); /* setup a new node */
248 int (*connect_node)(struct ctdb_node *); /* connect to node */
249 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
250 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
251 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
252 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
256 transport calls up to the ctdb layer
258 struct ctdb_upcalls {
259 /* recv_pkt is called when a packet comes in */
260 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
262 /* node_dead is called when an attempt to send to a node fails */
263 void (*node_dead)(struct ctdb_node *);
265 /* node_connected is called when a connection to a node is established */
266 void (*node_connected)(struct ctdb_node *);
269 /* list of message handlers - needs to be changed to a more efficient data
270 structure so we can find a message handler given a srvid quickly */
271 struct ctdb_message_list {
272 struct ctdb_context *ctdb;
273 struct ctdb_message_list *next, *prev;
275 ctdb_msg_fn_t message_handler;
276 void *message_private;
279 /* additional data required for the daemon mode */
280 struct ctdb_daemon_data {
283 struct ctdb_queue *queue;
287 ctdb status information
289 struct ctdb_statistics {
290 uint32_t num_clients;
293 uint32_t client_packets_sent;
294 uint32_t client_packets_recv;
295 uint32_t node_packets_sent;
296 uint32_t node_packets_recv;
297 uint32_t keepalive_packets_sent;
298 uint32_t keepalive_packets_recv;
302 uint32_t req_dmaster;
303 uint32_t reply_dmaster;
304 uint32_t reply_error;
305 uint32_t req_message;
306 uint32_t req_control;
307 uint32_t reply_control;
311 uint32_t req_message;
312 uint32_t req_control;
323 uint32_t total_calls;
324 uint32_t pending_calls;
325 uint32_t lockwait_calls;
326 uint32_t pending_lockwait_calls;
327 uint32_t childwrite_calls;
328 uint32_t pending_childwrite_calls;
329 uint32_t memory_used;
330 uint32_t __last_counter; /* hack for control_statistics_all */
331 uint32_t max_hop_count;
332 double max_call_latency;
333 double max_lockwait_latency;
334 double max_childwrite_latency;
335 uint32_t num_recoveries;
336 struct timeval statistics_start_time;
337 struct timeval statistics_current_time;
341 #define INVALID_GENERATION 1
342 /* table that contains the mapping between a hash value and lmaster
344 struct ctdb_vnn_map {
351 a wire representation of the vnn map
353 struct ctdb_vnn_map_wire {
359 /* a structure that contains the elements required for the write record
362 struct ctdb_write_record {
366 unsigned char blob[1];
369 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
371 #define CTDB_MONITORING_ACTIVE 0
372 #define CTDB_MONITORING_DISABLED 1
374 /* The different capabilities of the ctdb daemon. */
375 #define CTDB_CAP_RECMASTER 0x00000001
376 #define CTDB_CAP_LMASTER 0x00000002
377 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
378 #define CTDB_CAP_LVS 0x00000004
379 /* This capability is set if NATGW is enabled */
380 #define CTDB_CAP_NATGW 0x00000008
382 #define NUM_DB_PRIORITIES 3
383 /* main state of the ctdb daemon */
384 struct ctdb_context {
385 struct event_context *ev;
386 struct timeval ctdbd_start_time;
387 struct timeval last_recovery_started;
388 struct timeval last_recovery_finished;
389 uint32_t recovery_mode;
390 TALLOC_CTX *tickle_update_context;
391 TALLOC_CTX *keepalive_ctx;
392 struct ctdb_tunable tunable;
393 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
394 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
395 bool freeze_transaction_started;
396 uint32_t freeze_transaction_id;
397 struct ctdb_address address;
399 const char *db_directory;
400 const char *db_directory_persistent;
401 const char *db_directory_state;
402 struct tdb_wrap *db_persistent_health;
403 uint32_t db_persistent_startup_generation;
404 uint64_t db_persistent_check_errors;
405 uint64_t max_persistent_check_errors;
406 const char *transport;
407 char *recovery_lock_file;
408 int recovery_lock_fd;
409 uint32_t pnn; /* our own pnn */
411 uint32_t num_connected;
413 uint32_t capabilities;
414 struct idr_context *idr;
416 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
417 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
418 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
419 struct ctdb_iface *ifaces; /* list of local interfaces */
421 const struct ctdb_methods *methods; /* transport methods */
422 const struct ctdb_upcalls *upcalls; /* transport upcalls */
423 void *private_data; /* private to transport */
424 struct ctdb_db_context *db_list;
425 struct ctdb_message_list *message_list;
426 struct ctdb_daemon_data daemon;
427 struct ctdb_statistics statistics;
428 struct ctdb_vnn_map *vnn_map;
429 uint32_t num_clients;
430 uint32_t recovery_master;
431 struct ctdb_call_state *pending_calls;
432 struct ctdb_client_ip *client_ip_list;
433 bool do_checkpublicip;
434 struct trbt_tree *server_ids;
435 const char *event_script_dir;
436 const char *notification_script;
437 const char *default_public_interface;
443 struct ctdb_monitor_state *monitor;
444 struct ctdb_log_state *log;
445 int start_as_disabled;
446 int start_as_stopped;
448 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
449 uint32_t *recd_ping_count;
450 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
452 TALLOC_CTX *event_script_ctx;
454 struct ctdb_event_script_state *current_monitor;
455 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
457 TALLOC_CTX *banning_ctx;
459 /* mapping from pid to ctdb_client * */
460 struct ctdb_client_pid_list *client_pids;
462 /* used in the recovery daemon to remember the ip allocation */
463 struct trbt_tree *ip_tree;
466 struct ctdb_db_context {
467 struct ctdb_db_context *next, *prev;
468 struct ctdb_context *ctdb;
474 struct tdb_wrap *ltdb;
475 struct ctdb_registered_call *calls; /* list of registered calls */
477 struct timed_event *seqnum_update;
478 struct ctdb_traverse_local_handle *traverse;
479 bool transaction_active;
480 struct ctdb_vacuum_handle *vacuum_handle;
481 char *unhealthy_reason;
485 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
486 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
487 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
488 return -1; }} while (0)
490 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
491 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
492 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
495 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
496 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
497 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
498 return NULL; }} while (0)
500 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
501 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
502 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
506 structure passed in set_call control
508 struct ctdb_control_set_call {
515 struct for kill_tcp control
517 struct ctdb_control_killtcp {
518 ctdb_sock_addr src_addr;
519 ctdb_sock_addr dst_addr;
523 struct holding a ctdb_sock_addr and an interface name,
524 used to add/remove public addresses
526 struct ctdb_control_ip_iface {
534 struct holding a ctdb_sock_addr and an interface name,
535 used for send_gratious_arp
537 struct ctdb_control_gratious_arp {
545 struct for tcp_add and tcp_remove controls
547 struct ctdb_control_tcp_vnn {
553 persistent store control - update this record on all other nodes
555 struct ctdb_control_persistent_store {
562 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
564 struct ctdb_node_flag_change {
571 struct for admin setting a ban
573 struct ctdb_ban_info {
578 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
580 #define CTDB_LMASTER_ANY 0xffffffff
583 state of a in-progress ctdb call
585 struct ctdb_call_state {
586 struct ctdb_call_state *next, *prev;
587 enum call_state state;
589 struct ctdb_req_call *c;
590 struct ctdb_db_context *ctdb_db;
592 struct ctdb_call *call;
595 void (*fn)(struct ctdb_call_state *);
601 /* used for fetch_lock */
602 struct ctdb_fetch_handle {
603 struct ctdb_db_context *ctdb_db;
606 struct ctdb_ltdb_header header;
609 /* internal prototypes */
610 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
611 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
612 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
613 int ctdb_parse_address(struct ctdb_context *ctdb,
614 TALLOC_CTX *mem_ctx, const char *str,
615 struct ctdb_address *address);
616 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
617 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
618 uint32_t ctdb_hash(const TDB_DATA *key);
619 uint32_t ctdb_hash_string(const char *str);
620 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
621 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
622 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
623 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
624 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
625 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
627 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
628 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
629 TDB_DATA key, struct ctdb_ltdb_header *header,
630 TALLOC_CTX *mem_ctx, TDB_DATA *data);
631 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
632 struct ctdb_ltdb_header *header, TDB_DATA data);
633 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
634 struct ctdb_req_control *c,
636 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
637 struct ctdb_req_control *c,
639 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
640 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
641 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
642 TDB_DATA key, struct ctdb_req_header *hdr,
643 void (*recv_pkt)(void *, struct ctdb_req_header *),
644 void *recv_context, bool ignore_generation);
645 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
646 TDB_DATA key, struct ctdb_ltdb_header *header,
647 struct ctdb_req_header *hdr, TDB_DATA *data,
648 void (*recv_pkt)(void *, struct ctdb_req_header *),
649 void *recv_context, bool ignore_generation);
650 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
652 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
653 struct ctdb_call *call,
654 struct ctdb_ltdb_header *header,
658 int ctdbd_start(struct ctdb_context *ctdb);
659 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
660 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
663 queue a packet for sending
665 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
668 setup the fd used by the queue
670 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
673 setup a packet queue on a socket
675 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
676 TALLOC_CTX *mem_ctx, int fd, int alignment,
678 ctdb_queue_cb_fn_t callback,
682 allocate a packet for use in client<->daemon communication
684 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
686 enum ctdb_operation operation,
687 size_t length, size_t slength,
689 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
690 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
692 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
694 enum ctdb_operation operation,
695 size_t length, size_t slength,
697 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
698 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
700 int ctdb_queue_length(struct ctdb_queue *queue);
703 lock a record in the ltdb, given a key
705 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
708 unlock a record in the ltdb, given a key
710 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
714 make a ctdb call to the local daemon - async send. Called from client context.
716 This constructs a ctdb_call request and queues it for processing.
717 This call never blocks.
719 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
720 struct ctdb_call *call);
723 make a recv call to the local ctdb daemon - called from client context
725 This is called when the program wants to wait for a ctdb_call to complete and get the
726 results. This call will block unless the call has already completed.
728 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
730 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
731 uint64_t srvid, TDB_DATA data);
736 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
737 uint64_t srvid, TDB_DATA data);
740 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
742 void (*callback)(void *), void *private_data);
744 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
745 struct ctdb_call *call);
747 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
749 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
750 struct ctdb_call *call,
751 struct ctdb_ltdb_header *header);
753 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
754 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
757 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
759 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
761 int ctdb_socket_connect(struct ctdb_context *ctdb);
763 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
764 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
766 #define CTDB_BAD_REQID ((uint32_t)-1)
767 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
768 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
769 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
771 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
772 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
774 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
775 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
777 ctdb_control_callback_fn_t callback,
780 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
781 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
783 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
784 ctdb_fn_t fn, int id);
786 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
787 uint32_t opcode, uint32_t flags, TDB_DATA data,
788 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
789 struct timeval *timeout, char **errormsg);
790 int ctdb_control_recv(struct ctdb_context *ctdb,
791 struct ctdb_client_control_state *state,
793 TDB_DATA *outdata, int32_t *status, char **errormsg);
795 struct ctdb_client_control_state *
796 ctdb_control_send(struct ctdb_context *ctdb,
797 uint32_t destnode, uint64_t srvid,
798 uint32_t opcode, uint32_t flags, TDB_DATA data,
800 struct timeval *timeout,
806 #define CHECK_CONTROL_DATA_SIZE(size) do { \
807 if (indata.dsize != size) { \
808 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
809 opcode, (unsigned)indata.dsize, (unsigned)size)); \
814 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
815 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
816 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
817 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
818 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
819 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
822 struct ctdb_traverse_start {
829 structure used to pass record data between the child and parent
831 struct ctdb_rec_data {
840 /* structure used for pulldb control */
841 struct ctdb_control_pulldb {
846 /* structure used for sending lists of records */
847 struct ctdb_marshall_buffer {
853 /* set dmaster control structure */
854 struct ctdb_control_set_dmaster {
860 structure for setting a tunable
862 struct ctdb_control_set_tunable {
869 structure for getting a tunable
871 struct ctdb_control_get_tunable {
877 structure for listing tunables
879 struct ctdb_control_list_tunable {
881 /* returns a : separated list of tunable names */
886 /* table that contains a list of all nodes a ctdb knows about and their
889 struct ctdb_node_and_flags {
895 struct ctdb_node_map {
897 struct ctdb_node_and_flags nodes[1];
900 struct ctdb_node_and_flagsv4 {
903 struct sockaddr_in sin;
906 struct ctdb_node_mapv4 {
908 struct ctdb_node_and_flagsv4 nodes[1];
911 struct ctdb_control_wipe_database {
913 uint32_t transaction_id;
917 state of a in-progress ctdb call in client
919 struct ctdb_client_call_state {
920 enum call_state state;
922 struct ctdb_db_context *ctdb_db;
923 struct ctdb_call *call;
925 void (*fn)(struct ctdb_client_call_state *);
931 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
932 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
933 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
934 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
935 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
936 TDB_DATA *outdata, uint32_t srcnode);
938 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
940 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
941 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
942 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
944 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
945 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
947 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
948 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
950 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
952 struct ctdb_ltdb_header *header,
953 TDB_DATA *key, TDB_DATA *data);
955 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
956 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
957 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
959 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
960 struct ctdb_req_control *c,
961 TDB_DATA indata, bool *async_reply,
962 const char **errormsg);
963 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
964 TDB_DATA *outdata, int32_t status, const char *errormsg);
966 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
967 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
969 int ctdb_start_recoverd(struct ctdb_context *ctdb);
970 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
972 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
974 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
975 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
976 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
977 void ctdb_start_monitoring(struct ctdb_context *ctdb);
978 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
979 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
980 void ctdb_start_keepalive(struct ctdb_context *ctdb);
981 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
982 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
985 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
986 void ctdb_call_resend_all(struct ctdb_context *ctdb);
987 void ctdb_node_dead(struct ctdb_node *node);
988 void ctdb_node_connected(struct ctdb_node *node);
989 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
990 void ctdb_high_priority(struct ctdb_context *ctdb);
991 void ctdb_reduce_priority(struct ctdb_context *ctdb);
992 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
993 struct ctdb_req_control *c,
996 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
997 struct ctdb_req_control *c,
1000 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1001 struct ctdb_req_control *c,
1004 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1005 struct ctdb_req_control *c,
1008 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1009 struct ctdb_req_control *c,
1011 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1012 struct ctdb_req_control *c,
1015 struct ctdb_public_ipv4 {
1017 struct sockaddr_in sin;
1020 struct ctdb_public_ip {
1022 ctdb_sock_addr addr;
1024 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1025 uint32_t destnode, struct ctdb_public_ip *ip);
1026 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1027 uint32_t destnode, struct ctdb_public_ip *ip);
1029 struct ctdb_all_public_ipsv4 {
1031 struct ctdb_public_ipv4 ips[1];
1034 struct ctdb_all_public_ips {
1036 struct ctdb_public_ip ips[1];
1038 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1039 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1040 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1041 struct timeval timeout,
1043 TALLOC_CTX *mem_ctx,
1044 struct ctdb_all_public_ips **ips);
1045 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1046 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1047 struct timeval timeout, uint32_t destnode,
1048 TALLOC_CTX *mem_ctx,
1050 struct ctdb_all_public_ips **ips);
1051 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1052 struct timeval timeout, uint32_t destnode,
1053 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1056 #define CTDB_IFACE_SIZE IFNAMSIZ
1058 #define CTDB_IFACE_SIZE 16
1061 struct ctdb_control_iface_info {
1062 char name[CTDB_IFACE_SIZE+2];
1063 uint16_t link_state;
1064 uint32_t references;
1067 struct ctdb_control_public_ip_info {
1068 struct ctdb_public_ip ip;
1069 uint32_t active_idx;
1071 struct ctdb_control_iface_info ifaces[1];
1074 struct ctdb_control_get_ifaces {
1076 struct ctdb_control_iface_info ifaces[1];
1079 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1080 struct ctdb_req_control *c,
1083 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1084 struct ctdb_req_control *c,
1086 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1087 struct ctdb_req_control *c,
1089 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1090 struct timeval timeout, uint32_t destnode,
1091 TALLOC_CTX *mem_ctx,
1092 const ctdb_sock_addr *addr,
1093 struct ctdb_control_public_ip_info **info);
1094 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1095 struct timeval timeout, uint32_t destnode,
1096 TALLOC_CTX *mem_ctx,
1097 struct ctdb_control_get_ifaces **ifaces);
1098 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1099 struct timeval timeout, uint32_t destnode,
1100 TALLOC_CTX *mem_ctx,
1101 const struct ctdb_control_iface_info *info);
1103 /* from takeover/system.c */
1104 uint32_t uint16_checksum(uint16_t *data, size_t n);
1105 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1106 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1107 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1108 const ctdb_sock_addr *src,
1109 uint32_t seq, uint32_t ack, int rst);
1111 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1112 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1115 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1116 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1117 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1118 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1120 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1122 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1123 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1124 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1125 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1126 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1127 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1128 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1130 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1131 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1132 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1133 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1134 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1135 TALLOC_CTX *mem_ctx,
1136 void (*callback)(struct ctdb_context *, int, void *),
1139 enum ctdb_eventscript_call call,
1140 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1141 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1143 void set_nonblocking(int fd);
1144 void set_close_on_exec(int fd);
1146 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1148 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1150 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1152 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1153 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1154 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1155 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1156 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1158 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1160 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1162 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1163 struct timeval timeout,
1165 struct ctdb_tunable *tunables);
1167 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1169 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1170 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1171 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1172 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1175 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1176 int ctdb_sys_close_capture_socket(void *private_data);
1177 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);
1179 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1180 struct timeval timeout,
1182 struct ctdb_control_killtcp *killtcp);
1184 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1185 struct timeval timeout,
1187 struct ctdb_control_ip_iface *pub);
1189 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1190 struct timeval timeout,
1192 struct ctdb_control_ip_iface *pub);
1194 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1195 struct timeval timeout,
1197 ctdb_sock_addr *addr,
1198 const char *ifname);
1200 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1201 struct timeval timeout,
1203 TALLOC_CTX *mem_ctx,
1204 ctdb_sock_addr *addr,
1205 struct ctdb_control_tcp_tickle_list **list);
1208 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1211 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1213 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1215 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1217 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1220 int ctdb_attach_databases(struct ctdb_context *ctdb);
1222 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1223 struct ctdb_req_control *c,
1224 TDB_DATA recdata, bool *async_reply);
1225 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1226 struct ctdb_req_control *c, TDB_DATA recdata,
1228 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1229 struct ctdb_req_control *c,
1230 TDB_DATA recdata, bool *async_reply);
1232 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1233 struct ctdb_req_control *c,
1234 TDB_DATA recdata, bool *async_reply);
1236 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1237 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1238 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1239 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1240 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1241 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1246 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1247 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1249 void ctdb_block_signal(int signum);
1250 void ctdb_unblock_signal(int signum);
1251 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1252 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1253 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1255 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1257 struct client_async_data {
1258 enum ctdb_controls opcode;
1259 bool dont_log_errors;
1261 uint32_t fail_count;
1262 client_async_callback callback;
1263 client_async_callback fail_callback;
1264 void *callback_data;
1266 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1267 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1268 int ctdb_client_async_control(struct ctdb_context *ctdb,
1269 enum ctdb_controls opcode,
1272 struct timeval timeout,
1273 bool dont_log_errors,
1275 client_async_callback client_callback,
1276 client_async_callback fail_callback,
1277 void *callback_data);
1279 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1281 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1283 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1284 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1286 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1287 struct ctdb_req_control *c);
1288 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1289 struct ctdb_req_control *c);
1290 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1291 struct ctdb_req_control *c,
1294 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1295 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1296 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1298 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1299 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1301 extern int script_log_level;
1303 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1307 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1308 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1310 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1311 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1313 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1315 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1316 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1318 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1319 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1320 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1321 void ctdb_ban_self(struct ctdb_context *ctdb);
1323 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1325 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1327 int start_syslog_daemon(struct ctdb_context *ctdb);
1329 /* Where to send the log messages back to */
1330 struct ctdb_get_log_addr {
1336 extern int log_ringbuf_size;
1338 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1339 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1342 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1343 struct ctdb_context *ctdb,
1344 void (*logfn)(const char *, uint16_t, void *),
1345 void *logfn_private, pid_t *pid);
1347 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1348 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1350 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1354 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1355 struct ctdb_db_context *ctdb_db);
1356 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1357 struct ctdb_db_context *ctdb_db,
1358 const char *reason,/* NULL means healthy */
1359 int num_healthy_nodes);
1360 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1362 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1364 void ctdb_fault_setup(void);
1366 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1367 struct ctdb_all_public_ips *ips);
1368 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1369 struct ctdb_public_ip *ip);