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ctdb: add/implement CTDB_CONTROL_TCP_CLIENT_PASSED
[Samba.git] / ctdb / include / ctdb_private.h
blob802781237781e907f9ea6671dfe7a8b443c2a3c7
1 /*
2 ctdb database library
3
4 Copyright (C) Andrew Tridgell 2006
5
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.
10
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.
15
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/>.
18 */
19
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
22
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
25
26 #include "common/db_hash.h"
27
28 /*
29 array of tcp connections
30 */
31 struct ctdb_tcp_array {
32 uint32_t num;
33 struct ctdb_connection *connections;
34 };
35
36 /*
37 an installed ctdb remote call
38 */
39 typedef int (*ctdb_fn_t)(struct ctdb_call_info *);
40
41 struct ctdb_registered_call {
42 struct ctdb_registered_call *next, *prev;
43 uint32_t id;
44 ctdb_fn_t fn;
45 };
46
47 /*
48 check that a pnn is valid
49 */
50 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
51
52 /* used for callbacks in ctdb_control requests */
53 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
54 int32_t status, TDB_DATA data,
55 const char *errormsg,
56 void *private_data);
57 /*
58 structure describing a connected client in the daemon
59 */
60 struct ctdb_client {
61 struct ctdb_context *ctdb;
62 int fd;
63 struct ctdb_queue *queue;
64 uint32_t client_id;
65 pid_t pid;
66 struct ctdb_tcp_list *tcp_list;
67 uint32_t db_id;
68 uint32_t num_persistent_updates;
69 struct ctdb_client_notify_list *notify;
70 };
71
72 /*
73 state associated with one node
74 */
75 struct ctdb_node {
76 struct ctdb_context *ctdb;
77 ctdb_sock_addr address;
78 const char *name; /* for debug messages */
79 void *transport_data; /* private to transport */
80 uint32_t pnn;
81 uint32_t flags;
82
83 /* used by the dead node monitoring */
84 uint32_t dead_count;
85 uint32_t rx_cnt;
86 uint32_t tx_cnt;
87
88 /* a list of controls pending to this node, so we can time them out quickly
89 if the node becomes disconnected */
90 struct daemon_control_state *pending_controls;
91 };
92
93 /*
94 transport specific methods
95 */
96 struct ctdb_methods {
97 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
98 int (*start)(struct ctdb_context *); /* start the transport */
99 int (*add_node)(struct ctdb_node *); /* setup a new node */
100 int (*connect_node)(struct ctdb_node *); /* connect to node */
101 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
102 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
103 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
104 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
105 };
106
107 /*
108 transport calls up to the ctdb layer
109 */
110 struct ctdb_upcalls {
111 /* recv_pkt is called when a packet comes in */
112 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
113
114 /* node_dead is called when an attempt to send to a node fails */
115 void (*node_dead)(struct ctdb_node *);
116
117 /* node_connected is called when a connection to a node is established */
118 void (*node_connected)(struct ctdb_node *);
119 };
120
121 /* additional data required for the daemon mode */
122 struct ctdb_daemon_data {
123 int sd;
124 char *name;
125 struct ctdb_queue *queue;
126 };
127
128
129 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
130 { \
131 if (value > ctdb->statistics.counter) { \
132 ctdb->statistics.counter = value; \
133 } \
134 if (value > ctdb->statistics_current.counter) { \
135 ctdb->statistics_current.counter = value; \
136 } \
137 }
138
139 #define CTDB_INCREMENT_STAT(ctdb, counter) \
140 { \
141 ctdb->statistics.counter++; \
142 ctdb->statistics_current.counter++; \
143 }
144
145 #define CTDB_DECREMENT_STAT(ctdb, counter) \
146 { \
147 if (ctdb->statistics.counter > 0) \
148 ctdb->statistics.counter--; \
149 if (ctdb->statistics_current.counter > 0) \
150 ctdb->statistics_current.counter--; \
151 }
152
153 #define CTDB_INCREMENT_DB_STAT(ctdb_db, counter) \
154 { \
155 ctdb_db->statistics.counter++; \
156 }
157
158 #define CTDB_DECREMENT_DB_STAT(ctdb_db, counter) \
159 { \
160 if (ctdb_db->statistics.counter > 0) \
161 ctdb_db->statistics.counter--; \
162 }
163
164 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
165 { \
166 if (value > ctdb->statistics.counter.max) \
167 ctdb->statistics.counter.max = value; \
168 if (value > ctdb->statistics_current.counter.max) \
169 ctdb->statistics_current.counter.max = value; \
170 \
171 if (ctdb->statistics.counter.num == 0 || \
172 value < ctdb->statistics.counter.min) \
173 ctdb->statistics.counter.min = value; \
174 if (ctdb->statistics_current.counter.num == 0 || \
175 value < ctdb->statistics_current.counter.min) \
176 ctdb->statistics_current.counter.min = value; \
177 \
178 ctdb->statistics.counter.total += value; \
179 ctdb->statistics_current.counter.total += value; \
180 \
181 ctdb->statistics.counter.num++; \
182 ctdb->statistics_current.counter.num++; \
183 \
184 if (ctdb->tunable.reclock_latency_ms != 0) { \
185 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
186 DEBUG(DEBUG_ERR, \
187 ("High RECLOCK latency %fs for operation %s\n", \
188 value, name)); \
189 } \
190 } \
191 }
192
193 #define CTDB_UPDATE_DB_LATENCY(ctdb_db, operation, counter, value) \
194 { \
195 if (value > ctdb_db->statistics.counter.max) \
196 ctdb_db->statistics.counter.max = value; \
197 if (ctdb_db->statistics.counter.num == 0 || \
198 value < ctdb_db->statistics.counter.min) \
199 ctdb_db->statistics.counter.min = value; \
200 \
201 ctdb_db->statistics.counter.total += value; \
202 ctdb_db->statistics.counter.num++; \
203 \
204 if (ctdb_db->ctdb->tunable.log_latency_ms != 0) { \
205 if (value*1000 > ctdb_db->ctdb->tunable.log_latency_ms) { \
206 DEBUG(DEBUG_ERR, \
207 ("High latency %.6fs for operation %s on database %s\n",\
208 value, operation, ctdb_db->db_name)); \
209 } \
210 } \
211 }
212
213 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
214 { \
215 double l = timeval_elapsed(&t); \
216 \
217 if (l > ctdb->statistics.counter.max) \
218 ctdb->statistics.counter.max = l; \
219 if (l > ctdb->statistics_current.counter.max) \
220 ctdb->statistics_current.counter.max = l; \
221 \
222 if (ctdb->statistics.counter.num == 0 || \
223 l < ctdb->statistics.counter.min) \
224 ctdb->statistics.counter.min = l; \
225 if (ctdb->statistics_current.counter.num == 0 || \
226 l < ctdb->statistics_current.counter.min) \
227 ctdb->statistics_current.counter.min = l; \
228 \
229 ctdb->statistics.counter.total += l; \
230 ctdb->statistics_current.counter.total += l; \
231 \
232 ctdb->statistics.counter.num++; \
233 ctdb->statistics_current.counter.num++; \
234 \
235 if (ctdb->tunable.log_latency_ms != 0) { \
236 if (l*1000 > ctdb->tunable.log_latency_ms) { \
237 DEBUG(DEBUG_WARNING, \
238 ("High latency %.6fs for operation %s on database %s\n",\
239 l, operation, db->db_name)); \
240 } \
241 } \
242 }
243
244
245 struct ctdb_cluster_mutex_handle;
246 struct eventd_context;
247
248 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
249
250 /* main state of the ctdb daemon */
251 struct ctdb_context {
252 struct tevent_context *ev;
253 struct timeval ctdbd_start_time;
254 struct timeval last_recovery_started;
255 struct timeval last_recovery_finished;
256 uint32_t recovery_mode;
257 TALLOC_CTX *tickle_update_context;
258 TALLOC_CTX *keepalive_ctx;
259 TALLOC_CTX *check_public_ifaces_ctx;
260 struct ctdb_tunable_list tunable;
261 enum ctdb_freeze_mode freeze_mode;
262 struct ctdb_freeze_handle *freeze_handle;
263 bool freeze_transaction_started;
264 uint32_t freeze_transaction_id;
265 ctdb_sock_addr *address;
266 const char *name;
267 const char *db_directory;
268 const char *db_directory_persistent;
269 const char *db_directory_state;
270 struct tdb_wrap *db_persistent_health;
271 uint32_t db_persistent_startup_generation;
272 uint64_t db_persistent_check_errors;
273 uint64_t max_persistent_check_errors;
274 const char *transport;
275 const char *recovery_lock;
276 uint32_t pnn; /* our own pnn */
277 uint32_t num_nodes;
278 uint32_t num_connected;
279 unsigned flags;
280 uint32_t capabilities;
281 struct reqid_context *idr;
282 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
283 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
284 struct ctdb_interface *ifaces; /* list of local interfaces */
285 char *err_msg;
286 const struct ctdb_methods *methods; /* transport methods */
287 const struct ctdb_upcalls *upcalls; /* transport upcalls */
288 void *transport_data; /* private to transport */
289 struct ctdb_db_context *db_list;
290 struct srvid_context *srv;
291 struct srvid_context *tunnels;
292 struct ctdb_daemon_data daemon;
293 struct ctdb_statistics statistics;
294 struct ctdb_statistics statistics_current;
295 #define MAX_STAT_HISTORY 100
296 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
297 struct ctdb_vnn_map *vnn_map;
298 uint32_t num_clients;
299 bool do_checkpublicip;
300 bool do_setsched;
301 const char *event_script_dir;
302 const char *notification_script;
303 pid_t ctdbd_pid;
304 pid_t recoverd_pid;
305 enum ctdb_runstate runstate;
306 struct ctdb_monitor_state *monitor;
307 int start_as_disabled;
308 int start_as_stopped;
309 bool valgrinding;
310 uint32_t *recd_ping_count;
311 TALLOC_CTX *recd_ctx; /* a context used to track recoverd monitoring events */
312 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
313
314 struct eventd_context *ectx;
315
316 TALLOC_CTX *banning_ctx;
317
318 struct ctdb_vacuum_child_context *vacuumer;
319
320 /* mapping from pid to ctdb_client * */
321 struct ctdb_client_pid_list *client_pids;
322
323 /* Used to defer db attach requests while in recovery mode */
324 struct ctdb_deferred_attach_context *deferred_attach;
325
326 /* if we are a child process, do we have a domain socket to send controls on */
327 bool can_send_controls;
328
329 struct ctdb_reloadips_handle *reload_ips;
330
331 const char *nodes_file;
332 const char *public_addresses_file;
333 struct trbt_tree *child_processes;
334
335 /* Used for locking record/db/alldb */
336 struct lock_context *lock_current;
337 struct lock_context *lock_pending;
338 };
339
340 struct ctdb_db_hot_key {
341 uint32_t count;
342 TDB_DATA key;
343 uint32_t last_logged_count;
344 };
345
346 struct ctdb_db_context {
347 struct ctdb_db_context *next, *prev;
348 struct ctdb_context *ctdb;
349 uint32_t db_id;
350 uint8_t db_flags;
351 const char *db_name;
352 const char *db_path;
353 struct tdb_wrap *ltdb;
354 struct tdb_context *rottdb; /* ReadOnly tracking TDB */
355 struct ctdb_registered_call *calls; /* list of registered calls */
356 uint32_t seqnum;
357 struct tevent_timer *seqnum_update;
358 struct ctdb_traverse_local_handle *traverse;
359 struct ctdb_vacuum_handle *vacuum_handle;
360 char *unhealthy_reason;
361 int pending_requests;
362 struct revokechild_handle *revokechild_active;
363 struct ctdb_persistent_state *persistent_state;
364 struct trbt_tree *delete_queue;
365 struct trbt_tree *fetch_queue;
366 struct trbt_tree *sticky_records;
367 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
368 TDB_DATA key,
369 struct ctdb_ltdb_header *header,
370 TDB_DATA data);
371
372 /* used to track which records we are currently fetching
373 so we can avoid sending duplicate fetch requests
374 */
375 struct trbt_tree *deferred_fetch;
376 struct trbt_tree *defer_dmaster;
377
378 struct ctdb_db_statistics_old statistics;
379 struct ctdb_db_hot_key hot_keys[MAX_HOT_KEYS];
380
381 struct lock_context *lock_current;
382 struct lock_context *lock_pending;
383 unsigned int lock_num_current;
384 struct db_hash_context *lock_log;
385
386 struct ctdb_call_state *pending_calls;
387
388 enum ctdb_freeze_mode freeze_mode;
389 struct ctdb_db_freeze_handle *freeze_handle;
390 bool freeze_transaction_started;
391 uint32_t freeze_transaction_id;
392 uint32_t generation;
393
394 bool invalid_records;
395 bool push_started;
396 void *push_state;
397
398 struct hash_count_context *migratedb;
399 };
400
401
402 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
403 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
404 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
405 return -1; }} while (0)
406
407 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
408 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
409 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
410 return; }} while (0)
411
412 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
413 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
414 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
415 return NULL; }} while (0)
416
417 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
418 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
419 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
420 }} while (0)
421
422
423 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
424
425 /*
426 state of a in-progress ctdb call
427 */
428 struct ctdb_call_state {
429 struct ctdb_call_state *next, *prev;
430 enum call_state state;
431 uint32_t reqid;
432 struct ctdb_req_call_old *c;
433 struct ctdb_db_context *ctdb_db;
434 const char *errmsg;
435 struct ctdb_call *call;
436 uint32_t generation;
437 struct {
438 void (*fn)(struct ctdb_call_state *);
439 void *private_data;
440 } async;
441 };
442
443 /* internal prototypes */
444
445 #define CHECK_CONTROL_DATA_SIZE(size) do { \
446 if (indata.dsize != size) { \
447 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
448 opcode, (unsigned)indata.dsize, (unsigned)size)); \
449 return -1; \
450 } \
451 } while (0)
452
453 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
454 if (indata.dsize < size) { \
455 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
456 opcode, (unsigned)indata.dsize, (unsigned)size)); \
457 return -1; \
458 } \
459 } while (0)
460
461 /*
462 state of a in-progress ctdb call in client
463 */
464 struct ctdb_client_call_state {
465 enum call_state state;
466 uint32_t reqid;
467 struct ctdb_db_context *ctdb_db;
468 struct ctdb_call *call;
469 struct {
470 void (*fn)(struct ctdb_client_call_state *);
471 void *private_data;
472 } async;
473 };
474
475 extern int script_log_level;
476 extern bool fast_start;
477 extern const char *ctdbd_pidfile;
478
479 typedef void (*deferred_requeue_fn)(void *call_context, struct ctdb_req_header *hdr);
480
481
482 /* from tcp/ and ib/ */
483
484 int ctdb_tcp_init(struct ctdb_context *ctdb);
485 int ctdb_ibw_init(struct ctdb_context *ctdb);
486
487 /* from ctdb_banning.c */
488
489 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
490 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
491 void ctdb_ban_self(struct ctdb_context *ctdb);
492
493 /* from ctdb_call.c */
494
495 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
496
497 void ctdb_request_dmaster(struct ctdb_context *ctdb,
498 struct ctdb_req_header *hdr);
499 void ctdb_reply_dmaster(struct ctdb_context *ctdb,
500 struct ctdb_req_header *hdr);
501 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
502 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
503 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
504
505 void ctdb_call_resend_db(struct ctdb_db_context *ctdb);
506 void ctdb_call_resend_all(struct ctdb_context *ctdb);
507
508 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
509 struct ctdb_call *call,
510 struct ctdb_ltdb_header *header,
511 TDB_DATA *data);
512
513 struct ctdb_call_state *ctdb_daemon_call_send_remote(
514 struct ctdb_db_context *ctdb_db,
515 struct ctdb_call *call,
516 struct ctdb_ltdb_header *header);
517 int ctdb_daemon_call_recv(struct ctdb_call_state *state,
518 struct ctdb_call *call);
519
520 int ctdb_start_revoke_ro_record(struct ctdb_context *ctdb,
521 struct ctdb_db_context *ctdb_db,
522 TDB_DATA key, struct ctdb_ltdb_header *header,
523 TDB_DATA data);
524
525 int ctdb_add_revoke_deferred_call(struct ctdb_context *ctdb,
526 struct ctdb_db_context *ctdb_db,
527 TDB_DATA key, struct ctdb_req_header *hdr,
528 deferred_requeue_fn fn, void *call_context);
529
530 int ctdb_migration_init(struct ctdb_db_context *ctdb_db);
531
532 /* from server/ctdb_control.c */
533
534 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
535
536 void ctdb_request_control_reply(struct ctdb_context *ctdb,
537 struct ctdb_req_control_old *c,
538 TDB_DATA *outdata, int32_t status,
539 const char *errormsg);
540
541 void ctdb_request_control(struct ctdb_context *ctdb,
542 struct ctdb_req_header *hdr);
543 void ctdb_reply_control(struct ctdb_context *ctdb,
544 struct ctdb_req_header *hdr);
545
546 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
547 uint64_t srvid, uint32_t opcode,
548 uint32_t client_id, uint32_t flags,
549 TDB_DATA data,
550 ctdb_control_callback_fn_t callback,
551 void *private_data);
552
553 /* from server/ctdb_daemon.c */
554
555 int daemon_register_message_handler(struct ctdb_context *ctdb,
556 uint32_t client_id, uint64_t srvid);
557 int daemon_deregister_message_handler(struct ctdb_context *ctdb,
558 uint32_t client_id, uint64_t srvid);
559
560 void daemon_tunnel_handler(uint64_t tunnel_id, TDB_DATA data,
561 void *private_data);
562
563 struct ctdb_node *ctdb_find_node(struct ctdb_context *ctdb, uint32_t pnn);
564
565 int ctdb_start_daemon(struct ctdb_context *ctdb,
566 bool interactive,
567 bool test_mode_enabled);
568
569 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
570 TALLOC_CTX *mem_ctx,
571 enum ctdb_operation operation,
572 size_t length, size_t slength,
573 const char *type);
574
575 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
576 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, \
577 sizeof(type), #type)
578
579 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb,
580 struct ctdb_node *node);
581
582 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
583 ctdb_fn_t fn, int id);
584
585 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
586 uint64_t srvid, TDB_DATA data);
587
588 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb,
589 uint32_t client_id, TDB_DATA indata);
590 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb,
591 uint32_t client_id, TDB_DATA indata);
592
593 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb,
594 pid_t pid);
595
596 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
597 int32_t ctdb_control_check_pid_srvid(struct ctdb_context *ctdb,
598 TDB_DATA indata);
599
600 int ctdb_control_getnodesfile(struct ctdb_context *ctdb, uint32_t opcode,
601 TDB_DATA indata, TDB_DATA *outdata);
602
603 void ctdb_shutdown_sequence(struct ctdb_context *ctdb, int exit_code);
604
605 int switch_from_server_to_client(struct ctdb_context *ctdb);
606
607 /* From server/ctdb_fork.c */
608
609 void ctdb_track_child(struct ctdb_context *ctdb, pid_t pid);
610
611 pid_t ctdb_fork(struct ctdb_context *ctdb);
612 pid_t ctdb_vfork_exec(TALLOC_CTX *mem_ctx, struct ctdb_context *ctdb,
613 const char *helper, int helper_argc,
614 const char **helper_argv);
615
616 struct tevent_signal *ctdb_init_sigchld(struct ctdb_context *ctdb);
617
618 int ctdb_kill(struct ctdb_context *ctdb, pid_t pid, int signum);
619
620 /* from server/ctdb_freeze.c */
621
622 int32_t ctdb_control_db_freeze(struct ctdb_context *ctdb,
623 struct ctdb_req_control_old *c,
624 uint32_t db_id, bool *async_reply);
625 int32_t ctdb_control_db_thaw(struct ctdb_context *ctdb, uint32_t db_id);
626
627 int32_t ctdb_control_freeze(struct ctdb_context *ctdb,
628 struct ctdb_req_control_old *c, bool *async_reply);
629 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, bool check_recmode);
630
631 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
632
633 int32_t ctdb_control_db_transaction_start(struct ctdb_context *ctdb,
634 TDB_DATA indata);
635 int32_t ctdb_control_db_transaction_cancel(struct ctdb_context *ctdb,
636 TDB_DATA indata);
637 int32_t ctdb_control_db_transaction_commit(struct ctdb_context *ctdb,
638 TDB_DATA indata);
639
640 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
641
642 bool ctdb_db_frozen(struct ctdb_db_context *ctdb_db);
643 bool ctdb_db_all_frozen(struct ctdb_context *ctdb);
644 bool ctdb_db_allow_access(struct ctdb_db_context *ctdb_db);
645
646 /* from server/ctdb_keepalive.c */
647
648 void ctdb_start_keepalive(struct ctdb_context *ctdb);
649 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
650
651 void ctdb_request_keepalive(struct ctdb_context *ctdb,
652 struct ctdb_req_header *hdr);
653
654 /* from server/ctdb_lock.c */
655
656 struct lock_request;
657
658 typedef int (*ctdb_db_handler_t)(struct ctdb_db_context *ctdb_db,
659 void *private_data);
660
661 int ctdb_db_iterator(struct ctdb_context *ctdb, ctdb_db_handler_t handler,
662 void *private_data);
663
664 int ctdb_lockdb_mark(struct ctdb_db_context *ctdb_db);
665
666 int ctdb_lockdb_unmark(struct ctdb_db_context *ctdb_db);
667
668 struct lock_request *ctdb_lock_record(TALLOC_CTX *mem_ctx,
669 struct ctdb_db_context *ctdb_db,
670 TDB_DATA key,
671 bool auto_mark,
672 void (*callback)(void *, bool),
673 void *private_data);
674
675 struct lock_request *ctdb_lock_db(TALLOC_CTX *mem_ctx,
676 struct ctdb_db_context *ctdb_db,
677 bool auto_mark,
678 void (*callback)(void *, bool),
679 void *private_data);
680
681 /* from ctdb_logging.c */
682
683 bool ctdb_logging_init(TALLOC_CTX *mem_ctx, const char *logging,
684 const char *debug_level);
685
686 int ctdb_set_child_logging(struct ctdb_context *ctdb);
687
688 /* from ctdb_logging_file.c */
689
690 void ctdb_log_init_file(void);
691
692 /* from ctdb_logging_syslog.c */
693
694 void ctdb_log_init_syslog(void);
695
696 /* from ctdb_ltdb_server.c */
697
698 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
699 TDB_DATA key, struct ctdb_req_header *hdr,
700 void (*recv_pkt)(void *, struct ctdb_req_header *),
701 void *recv_context, bool ignore_generation);
702
703 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
704 TDB_DATA key, struct ctdb_ltdb_header *header,
705 struct ctdb_req_header *hdr, TDB_DATA *data,
706 void (*recv_pkt)(void *, struct ctdb_req_header *),
707 void *recv_context, bool ignore_generation);
708
709 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
710 struct ctdb_db_context *ctdb_db);
711 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
712 struct ctdb_db_context *ctdb_db,
713 const char *reason,/* NULL means healthy */
714 unsigned int num_healthy_nodes);
715 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
716
717 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb,
718 TDB_DATA indata);
719 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
720 TDB_DATA indata, TDB_DATA *outdata);
721
722 int ctdb_set_db_readonly(struct ctdb_context *ctdb,
723 struct ctdb_db_context *ctdb_db);
724
725 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
726
727 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb,
728 TDB_DATA indata,
729 TDB_DATA *outdata,
730 uint8_t db_flags,
731 uint32_t srcnode,
732 uint32_t client_id,
733 struct ctdb_req_control_old *c,
734 bool *async_reply);
735 int32_t ctdb_control_db_detach(struct ctdb_context *ctdb, TDB_DATA indata,
736 uint32_t client_id);
737
738 int ctdb_attach_databases(struct ctdb_context *ctdb);
739
740 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id,
741 uint32_t srcnode);
742 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
743
744 int ctdb_set_db_sticky(struct ctdb_context *ctdb,
745 struct ctdb_db_context *ctdb_db);
746
747 void ctdb_db_statistics_reset(struct ctdb_db_context *ctdb_db);
748
749 int32_t ctdb_control_get_db_statistics(struct ctdb_context *ctdb,
750 uint32_t db_id, TDB_DATA *outdata);
751
752 /* from ctdb_monitor.c */
753
754 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
755
756 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
757
758 void ctdb_wait_for_first_recovery(struct ctdb_context *ctdb);
759
760 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
761
762 /* from ctdb_persistent.c */
763
764 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
765
766 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
767 struct ctdb_req_control_old *c,
768 TDB_DATA recdata, bool *async_reply);
769
770 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
771 struct ctdb_req_control_old *c,
772 TDB_DATA recdata);
773 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
774 struct ctdb_req_control_old *c,
775 TDB_DATA recdata);
776
777 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
778 TDB_DATA indata, TDB_DATA *outdata);
779
780 /* from ctdb_recover.c */
781
782 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
783 TDB_DATA indata, TDB_DATA *outdata);
784 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode,
785 TDB_DATA indata, TDB_DATA *outdata);
786
787 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode,
788 TDB_DATA indata, TDB_DATA *outdata);
789 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode,
790 TDB_DATA indata, TDB_DATA *outdata);
791
792 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
793
794 int32_t ctdb_control_db_pull(struct ctdb_context *ctdb,
795 struct ctdb_req_control_old *c,
796 TDB_DATA indata, TDB_DATA *outdata);
797 int32_t ctdb_control_db_push_start(struct ctdb_context *ctdb,
798 TDB_DATA indata);
799 int32_t ctdb_control_db_push_confirm(struct ctdb_context *ctdb,
800 TDB_DATA indata, TDB_DATA *outdata);
801
802 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
803
804 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
805 struct ctdb_req_control_old *c,
806 TDB_DATA indata, bool *async_reply,
807 const char **errormsg);
808
809 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
810 struct ctdb_req_control_old *c,
811 bool *async_reply);
812 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
813 struct ctdb_req_control_old *c,
814 bool *async_reply);
815
816 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb,
817 TDB_DATA indata, TDB_DATA *outdata);
818
819 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb,
820 TDB_DATA *outdata);
821
822 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
823
824 void ctdb_node_become_inactive(struct ctdb_context *ctdb);
825
826 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb);
827 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
828
829 /* from ctdb_recoverd.c */
830
831 int ctdb_start_recoverd(struct ctdb_context *ctdb);
832 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
833
834 /* from ctdb_server.c */
835
836 int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
837
838 struct ctdb_node *ctdb_ip_to_node(struct ctdb_context *ctdb,
839 const ctdb_sock_addr *nodeip);
840 uint32_t ctdb_ip_to_pnn(struct ctdb_context *ctdb,
841 const ctdb_sock_addr *nodeip);
842
843 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
844
845 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
846
847 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
848
849 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
850
851 void ctdb_node_dead(struct ctdb_node *node);
852 void ctdb_node_connected(struct ctdb_node *node);
853
854 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
855 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb,
856 struct ctdb_req_header *hdr, unsigned opcode);
857
858 /* from ctdb_serverids.c */
859
860 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
861 uint32_t client_id, TDB_DATA indata);
862 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
863 TDB_DATA indata);
864 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
865 TDB_DATA indata);
866 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
867 TDB_DATA *outdata);
868
869 /* from ctdb_statistics.c */
870
871 int ctdb_statistics_init(struct ctdb_context *ctdb);
872
873 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
874 struct ctdb_req_control_old *c,
875 TDB_DATA *outdata);
876
877 /* from ctdb_takeover.c */
878
879 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
880 struct ctdb_req_control_old *c,
881 TDB_DATA indata,
882 bool *async_reply);
883 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
884 struct ctdb_req_control_old *c,
885 TDB_DATA indata,
886 bool *async_reply);
887 int32_t ctdb_control_ipreallocated(struct ctdb_context *ctdb,
888 struct ctdb_req_control_old *c,
889 bool *async_reply);
890
891 int ctdb_set_public_addresses(struct ctdb_context *ctdb, bool check_addresses);
892
893 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
894 TDB_DATA indata);
895 int32_t ctdb_control_tcp_client_disconnected(struct ctdb_context *ctdb,
896 uint32_t client_id,
897 TDB_DATA indata);
898 int32_t ctdb_control_tcp_client_passed(struct ctdb_context *ctdb,
899 uint32_t client_id,
900 TDB_DATA indata);
901 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata,
902 bool tcp_update_needed);
903 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
904 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
905
906 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
907
908 void ctdb_release_all_ips(struct ctdb_context *ctdb);
909
910 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb,
911 struct ctdb_req_control_old *c,
912 TDB_DATA *outdata);
913 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
914 struct ctdb_req_control_old *c,
915 TDB_DATA indata, TDB_DATA *outdata);
916
917 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
918 struct ctdb_req_control_old *c,
919 TDB_DATA *outdata);
920 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
921 struct ctdb_req_control_old *c,
922 TDB_DATA indata);
923
924 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb,
925 TDB_DATA indata);
926 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb,
927 TDB_DATA indata, TDB_DATA *outdata);
928
929 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
930
931 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb,
932 TDB_DATA indata);
933
934 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb,
935 TDB_DATA indata);
936 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb,
937 TDB_DATA recdata);
938
939 int32_t ctdb_control_reload_public_ips(struct ctdb_context *ctdb,
940 struct ctdb_req_control_old *c,
941 bool *async_reply);
942
943 /* from ctdb_traverse.c */
944
945 int32_t ctdb_control_traverse_all_ext(struct ctdb_context *ctdb,
946 TDB_DATA data, TDB_DATA *outdata);
947 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb,
948 TDB_DATA data, TDB_DATA *outdata);
949 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb,
950 TDB_DATA data, TDB_DATA *outdata);
951 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
952 TDB_DATA *outdata, uint32_t srcnode);
953
954 int32_t ctdb_control_traverse_start_ext(struct ctdb_context *ctdb,
955 TDB_DATA indata, TDB_DATA *outdata,
956 uint32_t srcnode, uint32_t client_id);
957 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb,
958 TDB_DATA indata, TDB_DATA *outdata,
959 uint32_t srcnode, uint32_t client_id);
960
961 /* from ctdb_tunables.c */
962
963 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
964
965 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
966 TDB_DATA *outdata);
967 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
968 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb,
969 TDB_DATA *outdata);
970 bool ctdb_tunables_load(struct ctdb_context *ctdb);
971
972 /* from ctdb_tunnel.c */
973
974 int32_t ctdb_control_tunnel_register(struct ctdb_context *ctdb,
975 uint32_t client_id, uint64_t tunnel_id);
976 int32_t ctdb_control_tunnel_deregister(struct ctdb_context *ctdb,
977 uint32_t client_id, uint64_t tunnel_id);
978
979 int ctdb_daemon_send_tunnel(struct ctdb_context *ctdb, uint32_t destnode,
980 uint64_t tunnel_id, uint32_t client_id,
981 TDB_DATA data);
982
983 void ctdb_request_tunnel(struct ctdb_context *ctdb,
984 struct ctdb_req_header *hdr);
985
986 /* from ctdb_update_record.c */
987
988 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
989 struct ctdb_req_control_old *c,
990 TDB_DATA recdata, bool *async_reply);
991
992 /* from ctdb_uptime.c */
993
994 int32_t ctdb_control_uptime(struct ctdb_context *ctdb, TDB_DATA *outdata);
995
996 /* from ctdb_vacuum.c */
997
998 int32_t ctdb_control_db_vacuum(struct ctdb_context *ctdb,
999 struct ctdb_req_control_old *c,
1000 TDB_DATA indata,
1001 bool *async_reply);
1002
1003 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1004 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1005
1006 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1007 TDB_DATA indata);
1008 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1009 const struct ctdb_ltdb_header *hdr,
1010 TDB_DATA key);
1011
1012 void ctdb_local_remove_from_delete_queue(struct ctdb_db_context *ctdb_db,
1013 const struct ctdb_ltdb_header *hdr,
1014 const TDB_DATA key);
1015
1016 int32_t ctdb_control_vacuum_fetch(struct ctdb_context *ctdb, TDB_DATA indata);
1017
1018 /* from eventscript.c */
1019
1020 int ctdb_start_eventd(struct ctdb_context *ctdb);
1021 void ctdb_stop_eventd(struct ctdb_context *ctdb);
1022
1023 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1024 TALLOC_CTX *mem_ctx,
1025 void (*callback)(struct ctdb_context *,
1026 int, void *),
1027 void *private_data,
1028 enum ctdb_event call,
1029 const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
1030
1031 int ctdb_event_script_args(struct ctdb_context *ctdb,
1032 enum ctdb_event call,
1033 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1034
1035 int ctdb_event_script(struct ctdb_context *ctdb,
1036 enum ctdb_event call);
1037
1038 void ctdb_event_reopen_logs(struct ctdb_context *ctdb);
1039
1040 #endif
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