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
24 #include <sys/socket.h>
26 /* location of daemon socket */
27 #define CTDB_PATH "/tmp/ctdb.socket"
29 /* default ctdb port number */
30 #define CTDB_PORT 4379
32 /* we must align packets to ensure ctdb works on all architectures (eg. sparc) */
33 #define CTDB_DS_ALIGNMENT 8
36 #define CTDB_NULL_FUNC 0xFF000001
37 #define CTDB_FETCH_FUNC 0xFF000002
41 recovery daemon memdump reply address
43 struct rd_memdump_reply {
49 a tcp connection description
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;
86 uint32_t recover_timeout;
87 uint32_t recover_interval;
88 uint32_t election_timeout;
89 uint32_t takeover_timeout;
90 uint32_t monitor_interval;
91 uint32_t tickle_update_interval;
92 uint32_t script_timeout;
93 uint32_t script_ban_count; /* ban after this many consec timeouts*/
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 disable_when_unhealthy;
102 uint32_t reclock_ping_period;
103 uint32_t no_ip_failback;
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;
114 an installed ctdb remote call
116 struct ctdb_registered_call {
117 struct ctdb_registered_call *next, *prev;
123 this address structure might need to be generalised later for some
126 struct ctdb_address {
132 check that a pnn is valid
134 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
137 /* called from the queue code when a packet comes in. Called with data==NULL
139 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
142 /* used for callbacks in ctdb_control requests */
143 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
144 int32_t status, TDB_DATA data,
145 const char *errormsg,
149 structure describing a connected client in the daemon
152 struct ctdb_context *ctdb;
154 struct ctdb_queue *queue;
157 struct ctdb_tcp_list *tcp_list;
158 uint32_t num_persistent_updates;
162 /* state associated with a public ip address */
164 struct ctdb_vnn *prev, *next;
167 ctdb_sock_addr public_address;
168 uint8_t public_netmask_bits;
170 /* the node number that is serving this public address, if any.
171 If no node serves this ip it is set to -1 */
174 /* List of clients to tickle for this public address */
175 struct ctdb_tcp_array *tcp_array;
177 /* whether we need to update the other nodes with changes to our list
178 of connected clients */
179 bool tcp_update_needed;
181 /* a context to hang sending gratious arp events off */
182 TALLOC_CTX *takeover_ctx;
184 struct ctdb_kill_tcp *killtcp;
188 state associated with one node
191 struct ctdb_context *ctdb;
192 struct ctdb_address address;
193 const char *name; /* for debug messages */
194 void *private_data; /* private to transport */
196 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
197 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
198 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
199 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
200 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
201 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
202 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED)
205 /* used by the dead node monitoring */
210 /* used to track node capabilities, is only valid/tracked inside the
213 uint32_t capabilities;
215 /* a list of controls pending to this node, so we can time them out quickly
216 if the node becomes disconnected */
217 struct daemon_control_state *pending_controls;
219 /* used by the recovery daemon when distributing ip addresses
220 across the nodes. it needs to know which public ip's can be handled
223 struct ctdb_all_public_ips *public_ips;
227 transport specific methods
229 struct ctdb_methods {
230 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
231 int (*start)(struct ctdb_context *); /* start the transport */
232 int (*add_node)(struct ctdb_node *); /* setup a new node */
233 int (*connect_node)(struct ctdb_node *); /* connect to node */
234 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
235 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
236 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
237 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
241 transport calls up to the ctdb layer
243 struct ctdb_upcalls {
244 /* recv_pkt is called when a packet comes in */
245 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
247 /* node_dead is called when an attempt to send to a node fails */
248 void (*node_dead)(struct ctdb_node *);
250 /* node_connected is called when a connection to a node is established */
251 void (*node_connected)(struct ctdb_node *);
254 /* list of message handlers - needs to be changed to a more efficient data
255 structure so we can find a message handler given a srvid quickly */
256 struct ctdb_message_list {
257 struct ctdb_context *ctdb;
258 struct ctdb_message_list *next, *prev;
260 ctdb_message_fn_t message_handler;
261 void *message_private;
264 /* additional data required for the daemon mode */
265 struct ctdb_daemon_data {
268 struct ctdb_queue *queue;
272 ctdb status information
274 struct ctdb_statistics {
275 uint32_t num_clients;
278 uint32_t client_packets_sent;
279 uint32_t client_packets_recv;
280 uint32_t node_packets_sent;
281 uint32_t node_packets_recv;
282 uint32_t keepalive_packets_sent;
283 uint32_t keepalive_packets_recv;
287 uint32_t req_dmaster;
288 uint32_t reply_dmaster;
289 uint32_t reply_error;
290 uint32_t req_message;
291 uint32_t req_control;
292 uint32_t reply_control;
296 uint32_t req_message;
297 uint32_t req_control;
308 uint32_t total_calls;
309 uint32_t pending_calls;
310 uint32_t lockwait_calls;
311 uint32_t pending_lockwait_calls;
312 uint32_t childwrite_calls;
313 uint32_t pending_childwrite_calls;
314 uint32_t memory_used;
315 uint32_t __last_counter; /* hack for control_statistics_all */
316 uint32_t max_hop_count;
317 double max_call_latency;
318 double max_lockwait_latency;
319 double max_childwrite_latency;
323 #define INVALID_GENERATION 1
324 /* table that contains the mapping between a hash value and lmaster
326 struct ctdb_vnn_map {
333 a wire representation of the vnn map
335 struct ctdb_vnn_map_wire {
341 /* a structure that contains the elements required for the write record
344 struct ctdb_write_record {
348 unsigned char blob[1];
351 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
353 #define CTDB_MONITORING_ACTIVE 0
354 #define CTDB_MONITORING_DISABLED 1
356 /* The different capabilities of the ctdb daemon. */
357 #define CTDB_CAP_RECMASTER 0x00000001
358 #define CTDB_CAP_LMASTER 0x00000002
359 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
360 #define CTDB_CAP_LVS 0x00000004
362 /* main state of the ctdb daemon */
363 struct ctdb_context {
364 struct event_context *ev;
365 struct timeval ctdbd_start_time;
366 struct timeval last_recovery_started;
367 struct timeval last_recovery_finished;
368 uint32_t recovery_mode;
369 TALLOC_CTX *tickle_update_context;
370 TALLOC_CTX *keepalive_ctx;
371 struct ctdb_tunable tunable;
372 enum ctdb_freeze_mode freeze_mode;
373 struct ctdb_freeze_handle *freeze_handle;
374 struct ctdb_address address;
376 const char *db_directory;
377 const char *db_directory_persistent;
378 const char *transport;
379 char *recovery_lock_file;
380 int recovery_lock_fd;
381 uint32_t pnn; /* our own pnn */
383 uint32_t num_connected;
385 uint32_t capabilities;
386 struct idr_context *idr;
388 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
389 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
390 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
392 const struct ctdb_methods *methods; /* transport methods */
393 const struct ctdb_upcalls *upcalls; /* transport upcalls */
394 void *private_data; /* private to transport */
395 struct ctdb_db_context *db_list;
396 struct ctdb_message_list *message_list;
397 struct ctdb_daemon_data daemon;
398 struct ctdb_statistics statistics;
399 struct ctdb_vnn_map *vnn_map;
400 uint32_t num_clients;
401 uint32_t recovery_master;
402 struct ctdb_call_state *pending_calls;
403 struct ctdb_client_ip *client_ip_list;
405 bool do_checkpublicip;
406 void *saved_scheduler_param;
407 struct _trbt_tree_t *server_ids;
408 const char *event_script_dir;
409 const char *notification_script;
410 const char *default_public_interface;
415 struct ctdb_monitor_state *monitor;
416 struct ctdb_log_state *log;
417 int start_as_disabled;
418 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
419 TALLOC_CTX *eventscripts_ctx; /* a context to hold data for the RUN_EVENTSCRIPTS control */
420 uint32_t *recd_ping_count;
421 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
422 TALLOC_CTX *script_monitoring_ctx; /* a context where we store results while running the monitor event */
423 TALLOC_CTX *last_monitoring_ctx;
426 struct ctdb_db_context {
427 struct ctdb_db_context *next, *prev;
428 struct ctdb_context *ctdb;
433 struct tdb_wrap *ltdb;
434 struct ctdb_registered_call *calls; /* list of registered calls */
436 struct timed_event *te;
437 struct ctdb_traverse_local_handle *traverse;
441 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
442 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
443 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
444 return -1; }} while (0)
446 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
447 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
448 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
451 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
452 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
453 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
454 return NULL; }} while (0)
456 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
457 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
458 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
462 the extended header for records in the ltdb
464 struct ctdb_ltdb_header {
471 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
472 CTDB_CONTROL_STATISTICS = 1,
474 CTDB_CONTROL_PING = 3,
475 CTDB_CONTROL_GETDBPATH = 4,
476 CTDB_CONTROL_GETVNNMAP = 5,
477 CTDB_CONTROL_SETVNNMAP = 6,
478 CTDB_CONTROL_GET_DEBUG = 7,
479 CTDB_CONTROL_SET_DEBUG = 8,
480 CTDB_CONTROL_GET_DBMAP = 9,
481 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
482 CTDB_CONTROL_SET_DMASTER = 11,
484 CTDB_CONTROL_PULL_DB = 13,
485 CTDB_CONTROL_PUSH_DB = 14,
486 CTDB_CONTROL_GET_RECMODE = 15,
487 CTDB_CONTROL_SET_RECMODE = 16,
488 CTDB_CONTROL_STATISTICS_RESET = 17,
489 CTDB_CONTROL_DB_ATTACH = 18,
490 CTDB_CONTROL_SET_CALL = 19,
491 CTDB_CONTROL_TRAVERSE_START = 20,
492 CTDB_CONTROL_TRAVERSE_ALL = 21,
493 CTDB_CONTROL_TRAVERSE_DATA = 22,
494 CTDB_CONTROL_REGISTER_SRVID = 23,
495 CTDB_CONTROL_DEREGISTER_SRVID = 24,
496 CTDB_CONTROL_GET_DBNAME = 25,
497 CTDB_CONTROL_ENABLE_SEQNUM = 26,
498 CTDB_CONTROL_UPDATE_SEQNUM = 27,
500 CTDB_CONTROL_DUMP_MEMORY = 29,
501 CTDB_CONTROL_GET_PID = 30,
502 CTDB_CONTROL_GET_RECMASTER = 31,
503 CTDB_CONTROL_SET_RECMASTER = 32,
504 CTDB_CONTROL_FREEZE = 33,
505 CTDB_CONTROL_THAW = 34,
506 CTDB_CONTROL_GET_PNN = 35,
507 CTDB_CONTROL_SHUTDOWN = 36,
508 CTDB_CONTROL_GET_MONMODE = 37,
513 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
514 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
515 CTDB_CONTROL_TCP_CLIENT = 44,
516 CTDB_CONTROL_TCP_ADD = 45,
517 CTDB_CONTROL_TCP_REMOVE = 46,
518 CTDB_CONTROL_STARTUP = 47,
519 CTDB_CONTROL_SET_TUNABLE = 48,
520 CTDB_CONTROL_GET_TUNABLE = 49,
521 CTDB_CONTROL_LIST_TUNABLES = 50,
522 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
523 CTDB_CONTROL_MODIFY_FLAGS = 52,
524 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
525 CTDB_CONTROL_KILL_TCP = 54,
526 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
527 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
528 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
529 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
530 CTDB_CONTROL_CHECK_SERVER_ID = 59,
531 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
532 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
533 CTDB_CONTROL_PERSISTENT_STORE = 62,
534 CTDB_CONTROL_UPDATE_RECORD = 63,
535 CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
536 CTDB_CONTROL_TRANSACTION_START = 65,
537 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
538 CTDB_CONTROL_WIPE_DATABASE = 67,
540 CTDB_CONTROL_UPTIME = 69,
541 CTDB_CONTROL_START_RECOVERY = 70,
542 CTDB_CONTROL_END_RECOVERY = 71,
543 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
545 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
546 CTDB_CONTROL_ENABLE_MONITOR = 75,
547 CTDB_CONTROL_DISABLE_MONITOR = 76,
548 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
549 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
550 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
551 CTDB_CONTROL_GET_CAPABILITIES = 80,
552 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
553 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
554 CTDB_CONTROL_TRANS2_COMMIT = 83,
555 CTDB_CONTROL_TRANS2_FINISHED = 84,
556 CTDB_CONTROL_TRANS2_ERROR = 85,
557 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
558 CTDB_CONTROL_RECD_PING = 87,
559 CTDB_CONTROL_RELEASE_IP = 88,
560 CTDB_CONTROL_TAKEOVER_IP = 89,
561 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
562 CTDB_CONTROL_GET_NODEMAP = 91,
563 CTDB_CONTROL_EVENT_SCRIPT_INIT = 92,
564 CTDB_CONTROL_EVENT_SCRIPT_START = 93,
565 CTDB_CONTROL_EVENT_SCRIPT_STOP = 94,
566 CTDB_CONTROL_EVENT_SCRIPT_FINISHED = 95,
567 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
568 CTDB_CONTROL_TRAVERSE_KILL = 97,
569 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
570 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
571 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
575 structure passed in set_call control
577 struct ctdb_control_set_call {
584 struct for kill_tcp control
586 struct ctdb_control_killtcp {
587 ctdb_sock_addr src_addr;
588 ctdb_sock_addr dst_addr;
592 struct holding a ctdb_sock_addr and an interface name,
593 used to add/remove public addresses
595 struct ctdb_control_ip_iface {
603 struct holding a ctdb_sock_addr and an interface name,
604 used for send_gratious_arp
606 struct ctdb_control_gratious_arp {
614 struct for tcp_add and tcp_remove controls
616 struct ctdb_control_tcp_vnn {
622 persistent store control - update this record on all other nodes
624 struct ctdb_control_persistent_store {
631 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
633 struct ctdb_node_flag_change {
640 struct for admin setting a ban
642 struct ctdb_ban_info {
647 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
649 #define CTDB_LMASTER_ANY 0xffffffff
652 state of a in-progress ctdb call
654 struct ctdb_call_state {
655 struct ctdb_call_state *next, *prev;
656 enum call_state state;
658 struct ctdb_req_call *c;
659 struct ctdb_db_context *ctdb_db;
661 struct ctdb_call *call;
664 void (*fn)(struct ctdb_call_state *);
670 /* used for fetch_lock */
671 struct ctdb_fetch_handle {
672 struct ctdb_db_context *ctdb_db;
675 struct ctdb_ltdb_header header;
681 enum ctdb_operation {
684 CTDB_REQ_DMASTER = 2,
685 CTDB_REPLY_DMASTER = 3,
686 CTDB_REPLY_ERROR = 4,
687 CTDB_REQ_MESSAGE = 5,
689 CTDB_REQ_CONTROL = 7,
690 CTDB_REPLY_CONTROL = 8,
691 CTDB_REQ_KEEPALIVE = 9,
694 #define CTDB_MAGIC 0x43544442 /* CTDB */
695 #define CTDB_VERSION 1
700 struct ctdb_req_header {
703 uint32_t ctdb_version;
711 struct ctdb_req_call {
712 struct ctdb_req_header hdr;
718 uint32_t calldatalen;
719 uint8_t data[1]; /* key[] followed by calldata[] */
722 struct ctdb_reply_call {
723 struct ctdb_req_header hdr;
729 struct ctdb_reply_error {
730 struct ctdb_req_header hdr;
736 struct ctdb_req_dmaster {
737 struct ctdb_req_header hdr;
746 struct ctdb_reply_dmaster {
747 struct ctdb_req_header hdr;
755 struct ctdb_req_message {
756 struct ctdb_req_header hdr;
762 struct ctdb_req_getdbpath {
763 struct ctdb_req_header hdr;
767 struct ctdb_reply_getdbpath {
768 struct ctdb_req_header hdr;
773 struct ctdb_req_control {
774 struct ctdb_req_header hdr;
778 #define CTDB_CTRL_FLAG_NOREPLY 1
784 struct ctdb_reply_control {
785 struct ctdb_req_header hdr;
792 struct ctdb_req_keepalive {
793 struct ctdb_req_header hdr;
797 /* types of failures possible from TRANS2_COMMIT */
798 enum ctdb_trans2_commit_error {
799 CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
800 CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
801 CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
802 CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
806 /* internal prototypes */
807 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
808 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
809 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
810 int ctdb_parse_address(struct ctdb_context *ctdb,
811 TALLOC_CTX *mem_ctx, const char *str,
812 struct ctdb_address *address);
813 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
814 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
815 uint32_t ctdb_hash(const TDB_DATA *key);
816 uint32_t ctdb_hash_string(const char *str);
817 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
818 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
819 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
820 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
821 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
822 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
824 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
825 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
826 TDB_DATA key, struct ctdb_ltdb_header *header,
827 TALLOC_CTX *mem_ctx, TDB_DATA *data);
828 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
829 struct ctdb_ltdb_header *header, TDB_DATA data);
830 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
831 struct ctdb_req_control *c,
833 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
834 struct ctdb_req_control *c,
836 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
837 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
838 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
839 TDB_DATA key, struct ctdb_req_header *hdr,
840 void (*recv_pkt)(void *, struct ctdb_req_header *),
841 void *recv_context, bool ignore_generation);
842 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
843 TDB_DATA key, struct ctdb_ltdb_header *header,
844 struct ctdb_req_header *hdr, TDB_DATA *data,
845 void (*recv_pkt)(void *, struct ctdb_req_header *),
846 void *recv_context, bool ignore_generation);
847 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
849 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
850 struct ctdb_call *call,
851 struct ctdb_ltdb_header *header,
855 int ctdbd_start(struct ctdb_context *ctdb);
856 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
857 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
860 queue a packet for sending
862 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
865 setup the fd used by the queue
867 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
870 setup a packet queue on a socket
872 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
873 TALLOC_CTX *mem_ctx, int fd, int alignment,
875 ctdb_queue_cb_fn_t callback,
879 allocate a packet for use in client<->daemon communication
881 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
883 enum ctdb_operation operation,
884 size_t length, size_t slength,
886 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
887 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
889 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
891 enum ctdb_operation operation,
892 size_t length, size_t slength,
894 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
895 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
899 lock a record in the ltdb, given a key
901 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
904 unlock a record in the ltdb, given a key
906 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
910 make a ctdb call to the local daemon - async send. Called from client context.
912 This constructs a ctdb_call request and queues it for processing.
913 This call never blocks.
915 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
916 struct ctdb_call *call);
919 make a recv call to the local ctdb daemon - called from client context
921 This is called when the program wants to wait for a ctdb_call to complete and get the
922 results. This call will block unless the call has already completed.
924 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
926 int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
927 ctdb_message_fn_t handler,
930 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
931 uint64_t srvid, TDB_DATA data);
936 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
937 uint64_t srvid, TDB_DATA data);
940 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
942 void (*callback)(void *), void *private_data);
944 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
945 struct ctdb_call *call);
947 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
949 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
950 struct ctdb_call *call,
951 struct ctdb_ltdb_header *header);
953 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
954 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
957 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
959 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
961 int ctdb_socket_connect(struct ctdb_context *ctdb);
963 void ctdb_latency(struct ctdb_db_context *ctdb_db, const char *name, double *latency, struct timeval t);
964 void ctdb_reclock_latency(struct ctdb_context *ctdb, const char *name, double *latency, double l);
966 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
967 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
968 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
970 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
971 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
973 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
974 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
976 ctdb_control_callback_fn_t callback,
979 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
980 TDB_DATA *outdata, uint64_t tdb_flags, bool persistent);
982 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
983 ctdb_fn_t fn, int id);
985 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
986 uint32_t opcode, uint32_t flags, TDB_DATA data,
987 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
988 struct timeval *timeout, char **errormsg);
989 int ctdb_control_recv(struct ctdb_context *ctdb,
990 struct ctdb_client_control_state *state,
992 TDB_DATA *outdata, int32_t *status, char **errormsg);
994 struct ctdb_client_control_state *
995 ctdb_control_send(struct ctdb_context *ctdb,
996 uint32_t destnode, uint64_t srvid,
997 uint32_t opcode, uint32_t flags, TDB_DATA data,
999 struct timeval *timeout,
1005 #define CHECK_CONTROL_DATA_SIZE(size) do { \
1006 if (indata.dsize != size) { \
1007 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
1008 opcode, (unsigned)indata.dsize, (unsigned)size)); \
1013 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1014 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1015 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1016 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1017 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1018 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
1021 struct ctdb_traverse_start {
1028 structure used to pass record data between the child and parent
1030 struct ctdb_rec_data {
1039 /* structure used for pulldb control */
1040 struct ctdb_control_pulldb {
1045 /* structure used for sending lists of records */
1046 struct ctdb_marshall_buffer {
1052 /* set dmaster control structure */
1053 struct ctdb_control_set_dmaster {
1059 structure for setting a tunable
1061 struct ctdb_control_set_tunable {
1068 structure for getting a tunable
1070 struct ctdb_control_get_tunable {
1076 structure for listing tunables
1078 struct ctdb_control_list_tunable {
1080 /* returns a : separated list of tunable names */
1085 /* table that contains a list of all nodes a ctdb knows about and their
1088 struct ctdb_node_and_flags {
1091 ctdb_sock_addr addr;
1094 struct ctdb_node_map {
1096 struct ctdb_node_and_flags nodes[1];
1099 struct ctdb_node_and_flagsv4 {
1102 struct sockaddr_in sin;
1105 struct ctdb_node_mapv4 {
1107 struct ctdb_node_and_flagsv4 nodes[1];
1110 struct ctdb_control_wipe_database {
1112 uint32_t transaction_id;
1116 state of a in-progress ctdb call in client
1118 struct ctdb_client_call_state {
1119 enum call_state state;
1121 struct ctdb_db_context *ctdb_db;
1122 struct ctdb_call *call;
1124 void (*fn)(struct ctdb_client_call_state *);
1130 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
1131 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
1132 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1133 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
1134 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
1135 TDB_DATA *outdata, uint32_t srcnode);
1137 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
1139 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1140 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
1141 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
1143 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
1144 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
1146 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
1147 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
1149 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
1151 struct ctdb_ltdb_header *header,
1152 TDB_DATA *key, TDB_DATA *data);
1154 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1155 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
1156 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
1158 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
1159 struct ctdb_req_control *c,
1160 TDB_DATA indata, bool *async_reply,
1161 const char **errormsg);
1162 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
1163 TDB_DATA *outdata, int32_t status, const char *errormsg);
1165 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1166 int32_t ctdb_control_thaw(struct ctdb_context *ctdb);
1168 int ctdb_start_recoverd(struct ctdb_context *ctdb);
1169 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
1171 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
1173 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
1174 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
1175 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
1176 void ctdb_start_monitoring(struct ctdb_context *ctdb);
1177 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
1178 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
1179 void ctdb_start_keepalive(struct ctdb_context *ctdb);
1180 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
1181 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1184 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1185 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1186 void ctdb_node_dead(struct ctdb_node *node);
1187 void ctdb_node_connected(struct ctdb_node *node);
1188 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1189 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1190 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1191 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1192 struct ctdb_req_control *c,
1195 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1196 struct ctdb_req_control *c,
1199 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1200 struct ctdb_req_control *c,
1203 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1204 struct ctdb_req_control *c,
1207 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1208 struct ctdb_req_control *c,
1210 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1211 struct ctdb_req_control *c,
1214 struct ctdb_public_ipv4 {
1216 struct sockaddr_in sin;
1219 struct ctdb_public_ip {
1221 ctdb_sock_addr addr;
1223 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1224 uint32_t destnode, struct ctdb_public_ip *ip);
1225 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1226 uint32_t destnode, struct ctdb_public_ip *ip);
1228 struct ctdb_all_public_ipsv4 {
1230 struct ctdb_public_ipv4 ips[1];
1233 struct ctdb_all_public_ips {
1235 struct ctdb_public_ip ips[1];
1237 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1238 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1239 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1240 struct timeval timeout, uint32_t destnode,
1241 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1242 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1243 struct timeval timeout, uint32_t destnode,
1244 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1247 /* from takeover/system.c */
1248 uint32_t uint16_checksum(uint16_t *data, size_t n);
1249 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1250 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1251 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1252 const ctdb_sock_addr *src,
1253 uint32_t seq, uint32_t ack, int rst);
1255 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1256 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1257 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1258 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1259 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1261 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1263 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
1264 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1265 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1266 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1267 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1268 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1269 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1271 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1272 int ctdb_event_script(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
1273 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1274 struct timeval timeout,
1275 TALLOC_CTX *mem_ctx,
1276 void (*callback)(struct ctdb_context *, int, void *),
1278 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1279 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1281 void set_nonblocking(int fd);
1282 void set_close_on_exec(int fd);
1284 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1286 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1288 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1290 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1291 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1292 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1293 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1294 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1296 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1298 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1300 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1301 struct timeval timeout,
1303 struct ctdb_tunable *tunables);
1305 void ctdb_start_freeze(struct ctdb_context *ctdb);
1307 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1308 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1309 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1310 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1313 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1314 int ctdb_sys_close_capture_socket(void *private_data);
1315 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);
1317 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1318 struct timeval timeout,
1320 struct ctdb_control_killtcp *killtcp);
1322 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1323 struct timeval timeout,
1325 struct ctdb_control_ip_iface *pub);
1327 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1328 struct timeval timeout,
1330 struct ctdb_control_ip_iface *pub);
1332 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1333 struct timeval timeout,
1335 ctdb_sock_addr *addr,
1336 const char *ifname);
1338 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1339 struct timeval timeout,
1341 TALLOC_CTX *mem_ctx,
1342 ctdb_sock_addr *addr,
1343 struct ctdb_control_tcp_tickle_list **list);
1346 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1349 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1351 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1353 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1355 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1358 int ctdb_attach_persistent(struct ctdb_context *ctdb);
1360 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1361 struct ctdb_req_control *c,
1362 TDB_DATA recdata, bool *async_reply);
1363 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1364 struct ctdb_req_control *c, TDB_DATA recdata,
1366 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1367 struct ctdb_req_control *c,
1368 TDB_DATA recdata, bool *async_reply);
1370 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1371 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1372 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1375 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1376 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1378 void ctdb_block_signal(int signum);
1379 void ctdb_unblock_signal(int signum);
1380 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1381 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1384 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1386 struct client_async_data {
1387 enum ctdb_controls opcode;
1388 bool dont_log_errors;
1390 uint32_t fail_count;
1391 client_async_callback callback;
1392 client_async_callback fail_callback;
1393 void *callback_data;
1395 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1396 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1397 int ctdb_client_async_control(struct ctdb_context *ctdb,
1398 enum ctdb_controls opcode,
1400 struct timeval timeout,
1401 bool dont_log_errors,
1403 client_async_callback client_callback,
1404 client_async_callback fail_callback,
1405 void *callback_data);
1407 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1409 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1411 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1412 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1414 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1415 struct ctdb_req_control *c);
1416 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1417 struct ctdb_req_control *c);
1419 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1420 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1421 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1423 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1424 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1426 extern int script_log_level;
1428 int ctdb_ctrl_event_script_init(struct ctdb_context *ctdb);
1429 int ctdb_ctrl_event_script_start(struct ctdb_context *ctdb, const char *name);
1430 int ctdb_ctrl_event_script_stop(struct ctdb_context *ctdb, int32_t res);
1431 int ctdb_ctrl_event_script_finished(struct ctdb_context *ctdb);
1433 int32_t ctdb_control_event_script_init(struct ctdb_context *ctdb);
1434 int32_t ctdb_control_event_script_start(struct ctdb_context *ctdb, TDB_DATA indata);
1435 int32_t ctdb_control_event_script_stop(struct ctdb_context *ctdb, TDB_DATA indata);
1436 int32_t ctdb_control_event_script_finished(struct ctdb_context *ctdb);
1439 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb, TDB_DATA *outdata);
1441 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1442 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);