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remove partial ctdb/ import

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In preparation of moving ctdb code into the samba repository.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
This commit is contained in:
Stefan Metzmacher 2013-09-25 23:49:58 +02:00 committed by Michael Adam
parent 1c9c2e3b65
commit 6142bce0cd
5 changed files with 0 additions and 4236 deletions
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1186
ctdb/include/ctdb.h
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ctdb/include/ctdb_client.h
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/*
ctdb database library: old client interface
Copyright (C) Andrew Tridgell 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CTDB_CLIENT_H
#define _CTDB_CLIENT_H
#include <ctdb_protocol.h>
enum control_state {CTDB_CONTROL_WAIT, CTDB_CONTROL_DONE, CTDB_CONTROL_ERROR, CTDB_CONTROL_TIMEOUT};
struct ctdb_client_control_state {
struct ctdb_context *ctdb;
uint32_t reqid;
int32_t status;
TDB_DATA outdata;
enum control_state state;
char *errormsg;
struct ctdb_req_control *c;
/* if we have a callback registered for the completion (or failure) of
this control
if a callback is used, it MUST talloc_free the cb_data passed to it
*/
struct {
void (*fn)(struct ctdb_client_control_state *);
void *private_data;
} async;
};
struct ctdb_client_notify_register {
uint64_t srvid;
uint32_t len;
uint8_t notify_data[1];
};
struct ctdb_client_notify_deregister {
uint64_t srvid;
};
struct tevent_context;
/*
initialise ctdb subsystem
*/
struct ctdb_context *ctdb_init(struct tevent_context *ev);
/*
choose the transport
*/
int ctdb_set_transport(struct ctdb_context *ctdb, const char *transport);
/*
set the directory for the local databases
*/
int ctdb_set_tdb_dir(struct ctdb_context *ctdb, const char *dir);
int ctdb_set_tdb_dir_persistent(struct ctdb_context *ctdb, const char *dir);
int ctdb_set_tdb_dir_state(struct ctdb_context *ctdb, const char *dir);
/*
set some flags
*/
void ctdb_set_flags(struct ctdb_context *ctdb, unsigned flags);
/*
tell ctdb what address to listen on, in transport specific format
*/
int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
int ctdb_set_socketname(struct ctdb_context *ctdb, const char *socketname);
const char *ctdb_get_socketname(struct ctdb_context *ctdb);
/*
tell ctdb what nodes are available. This takes a filename, which will contain
1 node address per line, in a transport specific format
*/
int ctdb_set_nlist(struct ctdb_context *ctdb, const char *nlist);
/*
Check that a specific ip address exists in the node list and returns
the id for the node or -1
*/
int ctdb_ip_to_nodeid(struct ctdb_context *ctdb, const char *nodeip);
/*
start the ctdb protocol
*/
int ctdb_start(struct ctdb_context *ctdb);
int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork, bool use_syslog, const char *public_address_list);
/*
attach to a ctdb database
*/
struct ctdb_db_context *ctdb_attach(struct ctdb_context *ctdb,
struct timeval timeout,
const char *name,
bool persistent,
uint32_t tdb_flags);
/*
find an attached ctdb_db handle given a name
*/
struct ctdb_db_context *ctdb_db_handle(struct ctdb_context *ctdb, const char *name);
/*
error string for last ctdb error
*/
const char *ctdb_errstr(struct ctdb_context *);
/* a ctdb call function */
typedef int (*ctdb_fn_t)(struct ctdb_call_info *);
/*
setup a ctdb call function
*/
int ctdb_set_call(struct ctdb_db_context *ctdb_db, ctdb_fn_t fn, uint32_t id);
/*
make a ctdb call. The associated ctdb call function will be called on the DMASTER
for the given record
*/
int ctdb_call(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
/*
initiate an ordered ctdb cluster shutdown
this function will never return
*/
void ctdb_shutdown(struct ctdb_context *ctdb);
/* return pnn of this node */
uint32_t ctdb_get_pnn(struct ctdb_context *ctdb);
/*
return the number of nodes
*/
uint32_t ctdb_get_num_nodes(struct ctdb_context *ctdb);
/* setup a handler for ctdb messages */
typedef void (*ctdb_msg_fn_t)(struct ctdb_context *, uint64_t srvid,
TDB_DATA data, void *);
int ctdb_client_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
ctdb_msg_fn_t handler,
void *private_data);
int ctdb_client_remove_message_handler(struct ctdb_context *ctdb,
uint64_t srvid, void *private_data);
int ctdb_call(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
struct ctdb_client_call_state *ctdb_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
int ctdb_call_recv(struct ctdb_client_call_state *state, struct ctdb_call *call);
/* send a ctdb message */
int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t pnn,
uint64_t srvid, TDB_DATA data);
/*
Fetch a ctdb record from a remote node
. Underneath this will force the
dmaster for the record to be moved to the local node.
*/
struct ctdb_record_handle *ctdb_fetch_lock(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx,
TDB_DATA key, TDB_DATA *data);
struct ctdb_record_handle *ctdb_fetch_readonly_lock(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx, TDB_DATA key, TDB_DATA *data, int read_only);
int ctdb_record_store(struct ctdb_record_handle *h, TDB_DATA data);
int ctdb_fetch(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx,
TDB_DATA key, TDB_DATA *data);
int ctdb_register_message_handler(struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx,
uint64_t srvid,
ctdb_msg_fn_t handler,
void *private_data);
struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
struct ctdb_context *ctdb_cmdline_client(struct tevent_context *ev,
struct timeval req_timeout);
struct ctdb_statistics;
int ctdb_ctrl_statistics(struct ctdb_context *ctdb, uint32_t destnode, struct ctdb_statistics *status);
int ctdb_ctrl_shutdown(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
struct ctdb_vnn_map;
int ctdb_ctrl_getvnnmap(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_vnn_map **vnnmap);
int ctdb_ctrl_setvnnmap(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_vnn_map *vnnmap);
/* table that contains a list of all dbids on a node
*/
struct ctdb_dbid_map {
uint32_t num;
struct ctdb_dbid {
uint32_t dbid;
#define CTDB_DB_FLAGS_PERSISTENT 0x01
#define CTDB_DB_FLAGS_READONLY 0x02
#define CTDB_DB_FLAGS_STICKY 0x04
uint8_t flags;
} dbs[1];
};
int ctdb_ctrl_getdbmap(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_dbid_map **dbmap);
struct ctdb_node_map;
int ctdb_ctrl_getnodemap(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_node_map **nodemap);
int ctdb_ctrl_getnodemapv4(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, struct ctdb_node_map **nodemap);
int ctdb_ctrl_reload_nodes_file(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode);
struct ctdb_key_list {
uint32_t dbid;
uint32_t num;
TDB_DATA *keys;
struct ctdb_ltdb_header *headers;
TDB_DATA *data;
};
int ctdb_ctrl_pulldb(
struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid,
uint32_t lmaster, TALLOC_CTX *mem_ctx,
struct timeval timeout, TDB_DATA *outdata);
struct ctdb_client_control_state *ctdb_ctrl_pulldb_send(
struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid,
uint32_t lmaster, TALLOC_CTX *mem_ctx, struct timeval timeout);
int ctdb_ctrl_pulldb_recv(
struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state,
TDB_DATA *outdata);
int ctdb_ctrl_pushdb(
struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid,
TALLOC_CTX *mem_ctx,
struct timeval timeout, TDB_DATA indata);
struct ctdb_client_control_state *ctdb_ctrl_pushdb_send(
struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid,
TALLOC_CTX *mem_ctx, struct timeval timeout,
TDB_DATA indata);
int ctdb_ctrl_pushdb_recv(
struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct ctdb_client_control_state *state);
int ctdb_ctrl_copydb(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t sourcenode,
uint32_t destnode, uint32_t dbid, uint32_t lmaster,
TALLOC_CTX *mem_ctx);
int ctdb_ctrl_getdbpath(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t dbid, TALLOC_CTX *mem_ctx, const char **path);
int ctdb_ctrl_getdbname(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t dbid, TALLOC_CTX *mem_ctx, const char **name);
int ctdb_ctrl_getdbhealth(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
uint32_t dbid, TALLOC_CTX *mem_ctx,
const char **reason);
int ctdb_ctrl_createdb(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, TALLOC_CTX *mem_ctx, const char *name, bool persistent);
int ctdb_ctrl_process_exists(struct ctdb_context *ctdb, uint32_t destnode, pid_t pid);
int ctdb_ctrl_ping(struct ctdb_context *ctdb, uint32_t destnode);
int ctdb_ctrl_get_config(struct ctdb_context *ctdb);
int ctdb_ctrl_get_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, int32_t *level);
int ctdb_ctrl_set_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, int32_t level);
/*
change dmaster for all keys in the database to the new value
*/
int ctdb_ctrl_setdmaster(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, uint32_t dbid, uint32_t dmaster);
/*
write a record on a specific db (this implicitely updates dmaster of the record to locally be the vnn of the node where the control is executed on)
*/
int ctdb_ctrl_write_record(struct ctdb_context *ctdb, uint32_t destnode, TALLOC_CTX *mem_ctx, uint32_t dbid, TDB_DATA key, TDB_DATA data);
#define CTDB_RECOVERY_NORMAL 0
#define CTDB_RECOVERY_ACTIVE 1
/*
get the recovery mode of a remote node
*/
int ctdb_ctrl_getrecmode(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, uint32_t *recmode);
struct ctdb_client_control_state *ctdb_ctrl_getrecmode_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_getrecmode_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *recmode);
/*
set the recovery mode of a remote node
*/
int ctdb_ctrl_setrecmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t recmode);
/*
get the monitoring mode of a remote node
*/
int ctdb_ctrl_getmonmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *monmode);
/*
set the monitoring mode of a remote node to active
*/
int ctdb_ctrl_enable_monmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
/*
set the monitoring mode of a remote node to disabled
*/
int ctdb_ctrl_disable_monmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
/*
get the recovery master of a remote node
*/
int ctdb_ctrl_getrecmaster(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, uint32_t *recmaster);
struct ctdb_client_control_state *ctdb_ctrl_getrecmaster_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_getrecmaster_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *recmaster);
/*
set the recovery master of a remote node
*/
int ctdb_ctrl_setrecmaster(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t recmaster);
uint32_t *ctdb_get_connected_nodes(struct ctdb_context *ctdb,
struct timeval timeout,
TALLOC_CTX *mem_ctx,
uint32_t *num_nodes);
int ctdb_statistics_reset(struct ctdb_context *ctdb, uint32_t destnode);
int ctdb_set_logfile(struct ctdb_context *ctdb, const char *logfile, bool use_syslog);
typedef int (*ctdb_traverse_func)(struct ctdb_context *, TDB_DATA, TDB_DATA, void *);
int ctdb_traverse(struct ctdb_db_context *ctdb_db, ctdb_traverse_func fn, void *private_data);
struct ctdb_dump_db_context {
FILE *f;
bool printemptyrecords;
bool printdatasize;
bool printlmaster;
bool printhash;
bool printrecordflags;
};
int ctdb_dumpdb_record(struct ctdb_context *ctdb, TDB_DATA key, TDB_DATA data, void *p);
int ctdb_dump_db(struct ctdb_db_context *ctdb_db,
struct ctdb_dump_db_context *ctx);
/*
get the pid of a ctdb daemon
*/
int ctdb_ctrl_getpid(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *pid);
int ctdb_ctrl_freeze(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode);
int ctdb_ctrl_freeze_priority(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode, uint32_t priority);
struct ctdb_client_control_state *
ctdb_ctrl_freeze_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct timeval timeout, uint32_t destnode,
uint32_t priority);
int ctdb_ctrl_freeze_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct ctdb_client_control_state *state);
int ctdb_ctrl_thaw_priority(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t priority);
int ctdb_ctrl_thaw(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_getpnn(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_get_tunable(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
const char *name, uint32_t *value);
int ctdb_ctrl_set_tunable(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
const char *name, uint32_t value);
int ctdb_ctrl_list_tunables(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
TALLOC_CTX *mem_ctx,
const char ***list, uint32_t *count);
int ctdb_ctrl_modflags(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
uint32_t set, uint32_t clear);
enum ctdb_server_id_type {
SERVER_TYPE_SAMBA=1,
SERVER_TYPE_NFSD=2,
SERVER_TYPE_ISCSID=3
};
struct ctdb_server_id {
enum ctdb_server_id_type type;
uint32_t pnn;
uint32_t server_id;
};
struct ctdb_server_id_list {
uint32_t num;
struct ctdb_server_id server_ids[1];
};
int ctdb_ctrl_register_server_id(struct ctdb_context *ctdb,
struct timeval timeout,
struct ctdb_server_id *id);
int ctdb_ctrl_unregister_server_id(struct ctdb_context *ctdb,
struct timeval timeout,
struct ctdb_server_id *id);
int ctdb_ctrl_check_server_id(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
struct ctdb_server_id *id, uint32_t *status);
int ctdb_ctrl_get_server_id_list(struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx,
struct timeval timeout, uint32_t destnode,
struct ctdb_server_id_list **svid_list);
struct ctdb_uptime {
struct timeval current_time;
struct timeval ctdbd_start_time;
struct timeval last_recovery_started;
struct timeval last_recovery_finished;
};
/*
struct for tcp_client control
this is an ipv4 only version of this structure used by samba
samba will later be migrated over to use the
ctdb_control_tcp_addr structure instead
*/
struct ctdb_control_tcp {
struct sockaddr_in src; // samba uses this
struct sockaddr_in dest;// samba uses this
};
/* new style structure */
struct ctdb_control_tcp_addr {
ctdb_sock_addr src;
ctdb_sock_addr dest;
};
int ctdb_socket_connect(struct ctdb_context *ctdb);
/*
get the uptime of a remote node
*/
int ctdb_ctrl_uptime(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, struct ctdb_uptime **uptime);
struct ctdb_client_control_state *ctdb_ctrl_uptime_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_uptime_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, struct ctdb_uptime **uptime);
int ctdb_ctrl_end_recovery(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_getreclock(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, const char **reclock);
int ctdb_ctrl_setreclock(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
const char *reclock);
uint32_t *list_of_connected_nodes(struct ctdb_context *ctdb,
struct ctdb_node_map *node_map,
TALLOC_CTX *mem_ctx,
bool include_self);
uint32_t *list_of_active_nodes(struct ctdb_context *ctdb,
struct ctdb_node_map *node_map,
TALLOC_CTX *mem_ctx,
bool include_self);
uint32_t *list_of_vnnmap_nodes(struct ctdb_context *ctdb,
struct ctdb_vnn_map *vnn_map,
TALLOC_CTX *mem_ctx,
bool include_self);
uint32_t *list_of_active_nodes_except_pnn(struct ctdb_context *ctdb,
struct ctdb_node_map *node_map,
TALLOC_CTX *mem_ctx,
uint32_t pnn);
int ctdb_read_pnn_lock(int fd, int32_t pnn);
/*
get capabilities of a remote node
*/
int ctdb_ctrl_getcapabilities(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *capabilities);
struct ctdb_client_control_state *ctdb_ctrl_getcapabilities_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_getcapabilities_recv(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct ctdb_client_control_state *state, uint32_t *capabilities);
int32_t ctdb_ctrl_transaction_active(struct ctdb_context *ctdb,
uint32_t destnode,
uint32_t db_id);
struct ctdb_marshall_buffer *ctdb_marshall_add(TALLOC_CTX *mem_ctx,
struct ctdb_marshall_buffer *m,
uint64_t db_id,
uint32_t reqid,
TDB_DATA key,
struct ctdb_ltdb_header *header,
TDB_DATA data);
TDB_DATA ctdb_marshall_finish(struct ctdb_marshall_buffer *m);
struct ctdb_transaction_handle *ctdb_transaction_start(struct ctdb_db_context *ctdb_db,
TALLOC_CTX *mem_ctx);
int ctdb_transaction_fetch(struct ctdb_transaction_handle *h,
TALLOC_CTX *mem_ctx,
TDB_DATA key, TDB_DATA *data);
int ctdb_transaction_store(struct ctdb_transaction_handle *h,
TDB_DATA key, TDB_DATA data);
int ctdb_transaction_commit(struct ctdb_transaction_handle *h);
int ctdb_ctrl_recd_ping(struct ctdb_context *ctdb);
int switch_from_server_to_client(struct ctdb_context *ctdb, const char *fmt,
...);
int ctdb_ctrl_getscriptstatus(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, enum ctdb_eventscript_call type,
struct ctdb_scripts_wire **script_status);
struct debug_levels {
int32_t level;
const char *description;
};
extern struct debug_levels debug_levels[];
const char *get_debug_by_level(int32_t level);
int32_t get_debug_by_desc(const char *desc);
int ctdb_ctrl_stop_node(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_continue_node(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
int ctdb_ctrl_setnatgwstate(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t natgwstate);
int ctdb_ctrl_setlmasterrole(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t lmasterrole);
int ctdb_ctrl_setrecmasterrole(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t recmasterrole);
int ctdb_ctrl_enablescript(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, const char *script);
int ctdb_ctrl_disablescript(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, const char *script);
struct ctdb_ban_time {
uint32_t pnn;
uint32_t time;
};
int ctdb_ctrl_set_ban(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, struct ctdb_ban_time *bantime);
int ctdb_ctrl_get_ban(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, TALLOC_CTX *mem_ctx, struct ctdb_ban_time **bantime);
struct ctdb_db_priority {
uint32_t db_id;
uint32_t priority;
};
int ctdb_ctrl_set_db_priority(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, struct ctdb_db_priority *db_prio);
int ctdb_ctrl_get_db_priority(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t db_id, uint32_t *priority);
int ctdb_ctrl_getstathistory(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, TALLOC_CTX *mem_ctx, struct ctdb_statistics_wire **stats);
struct ctdb_client_control_state *
ctdb_ctrl_updaterecord_send(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data);
int ctdb_ctrl_updaterecord_recv(struct ctdb_context *ctdb, struct ctdb_client_control_state *state);
int
ctdb_ctrl_updaterecord(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, struct timeval timeout, uint32_t destnode, struct ctdb_db_context *ctdb_db, TDB_DATA key, struct ctdb_ltdb_header *header, TDB_DATA data);
struct ctdb_client_control_state *
ctdb_ctrl_set_db_readonly_send(struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid);
int ctdb_ctrl_set_db_readonly_recv(struct ctdb_context *ctdb, struct ctdb_client_control_state *state);
int ctdb_ctrl_set_db_readonly(struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid);
struct ctdb_client_control_state *
ctdb_ctrl_set_db_sticky_send(struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid);
int ctdb_ctrl_set_db_sticky_recv(struct ctdb_context *ctdb, struct ctdb_client_control_state *state);
int ctdb_ctrl_set_db_sticky(struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid);
#endif /* _CTDB_CLIENT_H */

1502
ctdb/include/ctdb_private.h
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ctdb/include/ctdb_protocol.h
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/*
ctdb database library
Copyright (C) Andrew Tridgell 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CTDB_PROTOCOL_H
#define _CTDB_PROTOCOL_H
/* location of daemon socket */
#define CTDB_PATH "/tmp/ctdb.socket"
/* default ctdb port number */
#define CTDB_PORT 4379
/* we must align packets to ensure ctdb works on all architectures (eg. sparc) */
#define CTDB_DS_ALIGNMENT 8
#define CTDB_NULL_FUNC 0xFF000001
#define CTDB_FETCH_FUNC 0xFF000002
#define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003
struct ctdb_call {
int call_id;
TDB_DATA key;
TDB_DATA call_data;
TDB_DATA reply_data;
uint32_t status;
#define CTDB_IMMEDIATE_MIGRATION 0x00000001
#define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002
#define CTDB_WANT_READONLY 0x00000004
uint32_t flags;
};
/*
structure passed to a ctdb call backend function
*/
struct ctdb_call_info {
TDB_DATA key; /* record key */
struct ctdb_ltdb_header *header;
TDB_DATA record_data; /* current data in the record */
TDB_DATA *new_data; /* optionally updated record data */
TDB_DATA *call_data; /* optionally passed from caller */
TDB_DATA *reply_data; /* optionally returned by function */
uint32_t status; /* optional reply status - defaults to zero */
};
#define CTDB_ERR_INVALID 1
#define CTDB_ERR_NOMEM 2
/*
ctdb flags
*/
#define CTDB_FLAG_TORTURE (1<<1)
/*
a message handler ID meaning "give me all messages"
*/
#define CTDB_SRVID_ALL (~(uint64_t)0)
/*
srvid type : RECOVERY
*/
#define CTDB_SRVID_RECOVERY 0xF100000000000000LL
/*
a message handler ID meaning that the cluster has been reconfigured
*/
#define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL
/*
a message handler ID meaning that an IP address has been released
*/
#define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL
/*
a message handler ID meaning that an IP address has been taken
*/
#define CTDB_SRVID_TAKE_IP 0xF301000000000000LL
/*
a message ID to set the node flags in the recovery daemon
*/
#define CTDB_SRVID_SET_NODE_FLAGS 0xF400000000000000LL
/*
a message ID to ask the recovery daemon to update the expected node
assignment for a public ip
*/
#define CTDB_SRVID_RECD_UPDATE_IP 0xF500000000000000LL
/*
a message to tell the recovery daemon to fetch a set of records
*/
#define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL
/*
a message to tell the recovery daemon to write a talloc memdump
to the log
*/
#define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL
/*
a message ID to get the recovery daemon to push the node flags out
*/
#define CTDB_SRVID_PUSH_NODE_FLAGS 0xF900000000000000LL
/*
a message ID to get the recovery daemon to reload the nodes file
*/
#define CTDB_SRVID_RELOAD_NODES 0xFA00000000000000LL
/*
a message ID to get the recovery daemon to perform a takeover run
*/
#define CTDB_SRVID_TAKEOVER_RUN 0xFB00000000000000LL
/* request recovery daemon to rebalance ips for a node.
input is uint32_t for the node id.
*/
#define CTDB_SRVID_REBALANCE_NODE 0xFB01000000000000LL
/*
a message handler ID meaning to ask recovery master to reload all ips
*/
#define CTDB_SRVID_RELOAD_ALL_IPS 0xFB02000000000000LL
/* A message id to ask the recovery daemon to temporarily disable the
public ip checks
*/
#define CTDB_SRVID_DISABLE_IP_CHECK 0xFC00000000000000LL
/* A dummy port used for sending back ipreallocate resposnes to the main
daemon
*/
#define CTDB_SRVID_TAKEOVER_RUN_RESPONSE 0xFD00000000000000LL
/* A range of ports reserved for registering a PID (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* registering a SRVID that matches the process-id of the requesting process
*/
#define CTDB_SRVID_PID_RANGE 0x0000000000000000LL
/* A range of ports reserved for samba (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* CIFS server
*/
#define CTDB_SRVID_SAMBA_NOTIFY 0xFE00000000000000LL
#define CTDB_SRVID_SAMBA_RANGE 0xFE00000000000000LL
/* A range of ports reserved for a CTDB NFS server (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* NFS server
*/
#define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL
/* A range of ports reserved for a CTDB ISCSI server (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* ISCSI server
*/
#define CTDB_SRVID_ISCSID_RANGE 0xDE00000000000000LL
/* A range of ports reserved for testing (top 8 bits)
* All ports matching the 8 top bits are reserved for exclusive use by
* test applications
*/
#define CTDB_SRVID_TEST_RANGE 0xCE00000000000000LL
/* Range of ports reserved for traversals */
#define CTDB_SRVID_TRAVERSE_RANGE 0xBE00000000000000LL
/* used on the domain socket, send a pdu to the local daemon */
#define CTDB_CURRENT_NODE 0xF0000001
/* send a broadcast to all nodes in the cluster, active or not */
#define CTDB_BROADCAST_ALL 0xF0000002
/* send a broadcast to all nodes in the current vnn map */
#define CTDB_BROADCAST_VNNMAP 0xF0000003
/* send a broadcast to all connected nodes */
#define CTDB_BROADCAST_CONNECTED 0xF0000004
/* send a broadcast to selected connected nodes */
#define CTDB_MULTICAST 0xF0000005
/* the key used for transaction locking on persistent databases */
#define CTDB_TRANSACTION_LOCK_KEY "__transaction_lock__"
/* the key used to store persistent db sequence number */
#define CTDB_DB_SEQNUM_KEY "__db_sequence_number__"
#define MONITOR_SCRIPT_OK 0
#define MONITOR_SCRIPT_TIMEOUT 1
#define MAX_SCRIPT_NAME 31
#define MAX_SCRIPT_OUTPUT 511
struct ctdb_script_wire {
char name[MAX_SCRIPT_NAME+1];
struct timeval start;
struct timeval finished;
int32_t status;
char output[MAX_SCRIPT_OUTPUT+1];
};
struct ctdb_scripts_wire {
uint32_t num_scripts;
struct ctdb_script_wire scripts[1];
};
/* different calls to event scripts. */
enum ctdb_eventscript_call {
CTDB_EVENT_INIT, /* CTDB starting up: no args */
CTDB_EVENT_SETUP, /* CTDB starting up after transport is readdy: no args. */
CTDB_EVENT_STARTUP, /* CTDB starting up after initial recovery: no args. */
CTDB_EVENT_START_RECOVERY, /* CTDB recovery starting: no args. */
CTDB_EVENT_RECOVERED, /* CTDB recovery finished: no args. */
CTDB_EVENT_TAKE_IP, /* IP taken: interface, IP address, netmask bits. */
CTDB_EVENT_RELEASE_IP, /* IP released: interface, IP address, netmask bits. */
CTDB_EVENT_STOPPED, /* This node is stopped: no args. */
CTDB_EVENT_MONITOR, /* Please check if service is healthy: no args. */
CTDB_EVENT_STATUS, /* Report service status: no args. */
CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */
CTDB_EVENT_RELOAD, /* magic */
CTDB_EVENT_UPDATE_IP, /* IP updating: old interface, new interface, IP address, netmask bits. */
CTDB_EVENT_IPREALLOCATED, /* when a takeover_run() completes */
CTDB_EVENT_MAX
};
/* Mapping from enum to names. */
extern const char *ctdb_eventscript_call_names[];
/*
operation IDs
*/
enum ctdb_operation {
CTDB_REQ_CALL = 0,
CTDB_REPLY_CALL = 1,
CTDB_REQ_DMASTER = 2,
CTDB_REPLY_DMASTER = 3,
CTDB_REPLY_ERROR = 4,
CTDB_REQ_MESSAGE = 5,
/* #6 removed */
CTDB_REQ_CONTROL = 7,
CTDB_REPLY_CONTROL = 8,
CTDB_REQ_KEEPALIVE = 9,
};
#define CTDB_MAGIC 0x43544442 /* CTDB */
#define CTDB_VERSION 1
enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
CTDB_CONTROL_STATISTICS = 1,
/* #2 removed */
CTDB_CONTROL_PING = 3,
CTDB_CONTROL_GETDBPATH = 4,
CTDB_CONTROL_GETVNNMAP = 5,
CTDB_CONTROL_SETVNNMAP = 6,
CTDB_CONTROL_GET_DEBUG = 7,
CTDB_CONTROL_SET_DEBUG = 8,
CTDB_CONTROL_GET_DBMAP = 9,
CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
CTDB_CONTROL_SET_DMASTER = 11,
/* #12 removed */
CTDB_CONTROL_PULL_DB = 13,
CTDB_CONTROL_PUSH_DB = 14,
CTDB_CONTROL_GET_RECMODE = 15,
CTDB_CONTROL_SET_RECMODE = 16,
CTDB_CONTROL_STATISTICS_RESET = 17,
CTDB_CONTROL_DB_ATTACH = 18,
CTDB_CONTROL_SET_CALL = 19,
CTDB_CONTROL_TRAVERSE_START = 20,
CTDB_CONTROL_TRAVERSE_ALL = 21,
CTDB_CONTROL_TRAVERSE_DATA = 22,
CTDB_CONTROL_REGISTER_SRVID = 23,
CTDB_CONTROL_DEREGISTER_SRVID = 24,
CTDB_CONTROL_GET_DBNAME = 25,
CTDB_CONTROL_ENABLE_SEQNUM = 26,
CTDB_CONTROL_UPDATE_SEQNUM = 27,
/* #28 removed */
CTDB_CONTROL_DUMP_MEMORY = 29,
CTDB_CONTROL_GET_PID = 30,
CTDB_CONTROL_GET_RECMASTER = 31,
CTDB_CONTROL_SET_RECMASTER = 32,
CTDB_CONTROL_FREEZE = 33,
CTDB_CONTROL_THAW = 34,
CTDB_CONTROL_GET_PNN = 35,
CTDB_CONTROL_SHUTDOWN = 36,
CTDB_CONTROL_GET_MONMODE = 37,
/* #38 removed */
/* #39 removed */
/* #40 removed */
/* #41 removed */
CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
CTDB_CONTROL_TCP_CLIENT = 44,
CTDB_CONTROL_TCP_ADD = 45,
CTDB_CONTROL_TCP_REMOVE = 46,
CTDB_CONTROL_STARTUP = 47,
CTDB_CONTROL_SET_TUNABLE = 48,
CTDB_CONTROL_GET_TUNABLE = 49,
CTDB_CONTROL_LIST_TUNABLES = 50,
CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
CTDB_CONTROL_MODIFY_FLAGS = 52,
CTDB_CONTROL_GET_ALL_TUNABLES = 53,
CTDB_CONTROL_KILL_TCP = 54,
CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
CTDB_CONTROL_REGISTER_SERVER_ID = 57,
CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
CTDB_CONTROL_CHECK_SERVER_ID = 59,
CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
CTDB_CONTROL_PERSISTENT_STORE = 62,
CTDB_CONTROL_UPDATE_RECORD = 63,
CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
CTDB_CONTROL_TRANSACTION_START = 65,
CTDB_CONTROL_TRANSACTION_COMMIT = 66,
CTDB_CONTROL_WIPE_DATABASE = 67,
/* #68 removed */
CTDB_CONTROL_UPTIME = 69,
CTDB_CONTROL_START_RECOVERY = 70,
CTDB_CONTROL_END_RECOVERY = 71,
CTDB_CONTROL_RELOAD_NODES_FILE = 72,
/* #73 removed */
CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
CTDB_CONTROL_ENABLE_MONITOR = 75,
CTDB_CONTROL_DISABLE_MONITOR = 76,
CTDB_CONTROL_ADD_PUBLIC_IP = 77,
CTDB_CONTROL_DEL_PUBLIC_IP = 78,
CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
CTDB_CONTROL_GET_CAPABILITIES = 80,
CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
CTDB_CONTROL_TRANS2_COMMIT = 83,
CTDB_CONTROL_TRANS2_FINISHED = 84,
CTDB_CONTROL_TRANS2_ERROR = 85,
CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
CTDB_CONTROL_RECD_PING = 87,
CTDB_CONTROL_RELEASE_IP = 88,
CTDB_CONTROL_TAKEOVER_IP = 89,
CTDB_CONTROL_GET_PUBLIC_IPS = 90,
CTDB_CONTROL_GET_NODEMAP = 91,
CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
CTDB_CONTROL_TRAVERSE_KILL = 97,
CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
CTDB_CONTROL_GET_RECLOCK_FILE = 99,
CTDB_CONTROL_SET_RECLOCK_FILE = 100,
CTDB_CONTROL_STOP_NODE = 101,
CTDB_CONTROL_CONTINUE_NODE = 102,
CTDB_CONTROL_SET_NATGWSTATE = 103,
CTDB_CONTROL_SET_LMASTERROLE = 104,
CTDB_CONTROL_SET_RECMASTERROLE = 105,
CTDB_CONTROL_ENABLE_SCRIPT = 107,
CTDB_CONTROL_DISABLE_SCRIPT = 108,
CTDB_CONTROL_SET_BAN_STATE = 109,
CTDB_CONTROL_GET_BAN_STATE = 110,
CTDB_CONTROL_SET_DB_PRIORITY = 111,
CTDB_CONTROL_GET_DB_PRIORITY = 112,
CTDB_CONTROL_TRANSACTION_CANCEL = 113,
CTDB_CONTROL_REGISTER_NOTIFY = 114,
CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
CTDB_CONTROL_TRANS2_ACTIVE = 116,
CTDB_CONTROL_GET_LOG = 117,
CTDB_CONTROL_CLEAR_LOG = 118,
CTDB_CONTROL_TRANS3_COMMIT = 119,
CTDB_CONTROL_GET_DB_SEQNUM = 120,
CTDB_CONTROL_DB_SET_HEALTHY = 121,
CTDB_CONTROL_DB_GET_HEALTH = 122,
CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123,
CTDB_CONTROL_GET_IFACES = 124,
CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE = 126,
CTDB_CONTROL_GET_STAT_HISTORY = 127,
CTDB_CONTROL_SCHEDULE_FOR_DELETION = 128,
CTDB_CONTROL_SET_DB_READONLY = 129,
CTDB_CONTROL_CHECK_SRVIDS = 130,
CTDB_CONTROL_TRAVERSE_START_EXT = 131,
CTDB_CONTROL_GET_DB_STATISTICS = 132,
CTDB_CONTROL_SET_DB_STICKY = 133,
CTDB_CONTROL_RELOAD_PUBLIC_IPS = 134,
};
/*
packet structures
*/
struct ctdb_req_header {
uint32_t length;
uint32_t ctdb_magic;
uint32_t ctdb_version;
uint32_t generation;
uint32_t operation;
uint32_t destnode;
uint32_t srcnode;
uint32_t reqid;
};
struct ctdb_req_call {
struct ctdb_req_header hdr;
uint32_t flags;
uint32_t db_id;
uint32_t callid;
uint32_t hopcount;
uint32_t keylen;
uint32_t calldatalen;
uint8_t data[1]; /* key[] followed by calldata[] */
};
struct ctdb_reply_call {
struct ctdb_req_header hdr;
uint32_t status;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_reply_error {
struct ctdb_req_header hdr;
uint32_t status;
uint32_t msglen;
uint8_t msg[1];
};
struct ctdb_req_dmaster {
struct ctdb_req_header hdr;
uint32_t db_id;
uint64_t rsn;
uint32_t dmaster;
uint32_t keylen;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_reply_dmaster {
struct ctdb_req_header hdr;
uint32_t db_id;
uint64_t rsn;
uint32_t keylen;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_req_message {
struct ctdb_req_header hdr;
uint64_t srvid;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_req_getdbpath {
struct ctdb_req_header hdr;
uint32_t db_id;
};
struct ctdb_reply_getdbpath {
struct ctdb_req_header hdr;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_req_control {
struct ctdb_req_header hdr;
uint32_t opcode;
uint32_t pad;
uint64_t srvid;
uint32_t client_id;
#define CTDB_CTRL_FLAG_NOREPLY 1
#define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
uint32_t flags;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_reply_control {
struct ctdb_req_header hdr;
int32_t status;
uint32_t datalen;
uint32_t errorlen;
uint8_t data[1];
};
struct ctdb_req_keepalive {
struct ctdb_req_header hdr;
};
/* types of failures possible from TRANS2_COMMIT */
enum ctdb_trans2_commit_error {
CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
};
/*
the extended header for records in the ltdb
*/
struct ctdb_ltdb_header {
uint64_t rsn;
uint32_t dmaster;
uint16_t laccessor;
uint16_t lacount;
#define CTDB_REC_FLAG_DEFAULT 0x00000000
#define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
#define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
#define CTDB_REC_FLAG_AUTOMATIC 0x00040000
#define CTDB_REC_RO_HAVE_DELEGATIONS 0x01000000
#define CTDB_REC_RO_HAVE_READONLY 0x02000000
#define CTDB_REC_RO_REVOKING_READONLY 0x04000000
#define CTDB_REC_RO_REVOKE_COMPLETE 0x08000000
uint32_t flags;
};
/*
definitions for different socket structures
*/
typedef struct sockaddr_in ctdb_addr_in;
typedef struct sockaddr_in6 ctdb_addr_in6;
typedef union {
struct sockaddr sa;
ctdb_addr_in ip;
ctdb_addr_in6 ip6;
} ctdb_sock_addr;
/*
A structure describing a single node, its flags and its address
*/
struct ctdb_node_and_flags {
uint32_t pnn;
uint32_t flags;
ctdb_sock_addr addr;
};
/*
Structure used for a nodemap.
The nodemap is the structure containing a list of all nodes
known to the cluster and their associated flags.
*/
struct ctdb_node_map {
uint32_t num;
struct ctdb_node_and_flags nodes[1];
};
/*
* Node flags
*/
#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
#define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
#define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
#define NODE_FLAGS_NOIPTAKEOVER 0x01000000 /* this node can takeover any new ip addresses, this flag is ONLY valid within the recovery daemon */
struct ctdb_public_ip {
uint32_t pnn;
ctdb_sock_addr addr;
};
struct ctdb_all_public_ips {
uint32_t num;
struct ctdb_public_ip ips[1];
};
struct latency_counter {
int num;
double min;
double max;
double total;
};
/*
structure used to pass record data between the child and parent
*/
struct ctdb_rec_data {
uint32_t length;
uint32_t reqid;
uint32_t keylen;
uint32_t datalen;
uint8_t data[1];
};
struct ctdb_traverse_start {
uint32_t db_id;
uint32_t reqid;
uint64_t srvid;
};
struct ctdb_traverse_start_ext {
uint32_t db_id;
uint32_t reqid;
uint64_t srvid;
bool withemptyrecords;
};
/*
ctdb statistics information
*/
#define MAX_COUNT_BUCKETS 16
#define MAX_HOT_KEYS 10
struct ctdb_statistics {
uint32_t num_clients;
uint32_t frozen;
uint32_t recovering;
uint32_t client_packets_sent;
uint32_t client_packets_recv;
uint32_t node_packets_sent;
uint32_t node_packets_recv;
uint32_t keepalive_packets_sent;
uint32_t keepalive_packets_recv;
struct {
uint32_t req_call;
uint32_t reply_call;
uint32_t req_dmaster;
uint32_t reply_dmaster;
uint32_t reply_error;
uint32_t req_message;
uint32_t req_control;
uint32_t reply_control;
} node;
struct {
uint32_t req_call;
uint32_t req_message;
uint32_t req_control;
} client;
struct {
uint32_t call;
uint32_t control;
uint32_t traverse;
} timeouts;
struct {
struct latency_counter ctdbd;
struct latency_counter recd;
} reclock;
uint32_t total_calls;
uint32_t pending_calls;
uint32_t lockwait_calls;
uint32_t pending_lockwait_calls;
uint32_t childwrite_calls;
uint32_t pending_childwrite_calls;
uint32_t memory_used;
uint32_t __last_counter; /* hack for control_statistics_all */
uint32_t max_hop_count;
uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
struct latency_counter call_latency;
struct latency_counter lockwait_latency;
struct latency_counter childwrite_latency;
uint32_t num_recoveries;
struct timeval statistics_start_time;
struct timeval statistics_current_time;
uint32_t total_ro_delegations;
uint32_t total_ro_revokes;
};
/*
* wire format for statistics history
*/
struct ctdb_statistics_wire {
uint32_t num;
struct ctdb_statistics stats[1];
};
/*
* db statistics
*/
struct ctdb_db_hot_key {
uint32_t count;
TDB_DATA key;
};
struct ctdb_db_statistics {
uint32_t db_ro_delegations;
uint32_t db_ro_revokes;
uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
uint32_t num_hot_keys;
struct ctdb_db_hot_key hot_keys[MAX_HOT_KEYS];
};
struct ctdb_db_statistics_wire {
uint32_t db_ro_delegations;
uint32_t db_ro_revokes;
uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
uint32_t num_hot_keys;
char hot_keys[1];
};
/*
* wire format for interface list
*/
#ifdef IFNAMSIZ
#define CTDB_IFACE_SIZE IFNAMSIZ
#else
#define CTDB_IFACE_SIZE 16
#endif
struct ctdb_iface_info {
char name[CTDB_IFACE_SIZE+2];
uint16_t link_state;
uint32_t references;
};
struct ctdb_ifaces_list {
uint32_t num;
struct ctdb_iface_info ifaces[1];
};
#define INVALID_GENERATION 1
/* table that contains the mapping between a hash value and lmaster
*/
struct ctdb_vnn_map {
uint32_t generation;
uint32_t size;
uint32_t *map;
};
/*
a wire representation of the vnn map
*/
struct ctdb_vnn_map_wire {
uint32_t generation;
uint32_t size;
uint32_t map[1];
};
#endif

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ctdb/include/ctdb_typesafe_cb.h
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@ -1,177 +0,0 @@
#ifndef CCAN_CAST_IF_TYPE_H
#define CCAN_CAST_IF_TYPE_H
#if (__GNUC__ >= 3)
#define HAVE_TYPEOF 1
#define HAVE_BUILTIN_CHOOSE_EXPR 1
#define HAVE_BUILTIN_TYPES_COMPATIBLE_P 1
#endif
#if HAVE_TYPEOF && HAVE_BUILTIN_CHOOSE_EXPR && HAVE_BUILTIN_TYPES_COMPATIBLE_P
/**
* cast_if_type - only cast an expression if test matches a given type
* @desttype: the type to cast to
* @expr: the expression to cast
* @test: the expression to test
* @oktype: the type we allow
*
* This macro is used to create functions which allow multiple types.
* The result of this macro is used somewhere that a @desttype type is
* expected: if @expr was of type @oktype, it will be cast to
* @desttype type. As a result, if @expr is any type other than
* @oktype or @desttype, a compiler warning will be issued.
*
* This macro can be used in static initializers.
*
* This is merely useful for warnings: if the compiler does not
* support the primitives required for cast_if_type(), it becomes an
* unconditional cast, and the @test and @oktype argument is not used. In
* particular, this means that @oktype can be a type which uses
* the "typeof": it will not be evaluated if typeof is not supported.
*
* Example:
* // We can take either an unsigned long or a void *.
* void _set_some_value(void *val);
* #define set_some_value(e) \
* _set_some_value(cast_if_type(void *, (e), (e), unsigned long))
*/
#define cast_if_type(desttype, expr, test, oktype) \
__builtin_choose_expr(__builtin_types_compatible_p(typeof(1?(test):0), oktype), \
(desttype)(expr), (expr))
#else
#define cast_if_type(desttype, expr, test, oktype) ((desttype)(expr))
#endif
/**
* cast_if_any - only cast an expression if it is one of the three given types
* @desttype: the type to cast to
* @expr: the expression to cast
* @test: the expression to test
* @ok1: the first type we allow
* @ok2: the second type we allow
* @ok3: the third type we allow
*
* This is a convenient wrapper for multiple cast_if_type() calls. You can
* chain them inside each other (ie. use cast_if_any() for expr) if you need
* more than 3 arguments.
*
* Example:
* // We can take either a long, unsigned long, void * or a const void *.
* void _set_some_value(void *val);
* #define set_some_value(expr) \
* _set_some_value(cast_if_any(void *, (expr), (expr), \
* long, unsigned long, const void *))
*/
#define cast_if_any(desttype, expr, test, ok1, ok2, ok3) \
cast_if_type(desttype, \
cast_if_type(desttype, \
cast_if_type(desttype, (expr), (test), ok1), \
ok2), \
ok3)
/**
* typesafe_cb - cast a callback function if it matches the arg
* @rtype: the return type of the callback function
* @fn: the callback function to cast
* @arg: the (pointer) argument to hand to the callback function.
*
* If a callback function takes a single argument, this macro does
* appropriate casts to a function which takes a single void * argument if the
* callback provided matches the @arg (or a const or volatile version).
*
* It is assumed that @arg is of pointer type: usually @arg is passed
* or assigned to a void * elsewhere anyway.
*
* Example:
* void _register_callback(void (*fn)(void *arg), void *arg);
* #define register_callback(fn, arg) \
* _register_callback(typesafe_cb(void, (fn), (arg)), (arg))
*/
#define typesafe_cb(rtype, fn, arg) \
cast_if_type(rtype (*)(void *), (fn), (fn)(arg), rtype)
/**
* typesafe_cb_const - cast a const callback function if it matches the arg
* @rtype: the return type of the callback function
* @fn: the callback function to cast
* @arg: the (pointer) argument to hand to the callback function.
*
* If a callback function takes a single argument, this macro does appropriate
* casts to a function which takes a single const void * argument if the
* callback provided matches the @arg.
*
* It is assumed that @arg is of pointer type: usually @arg is passed
* or assigned to a void * elsewhere anyway.
*
* Example:
* void _register_callback(void (*fn)(const void *arg), const void *arg);
* #define register_callback(fn, arg) \
* _register_callback(typesafe_cb_const(void, (fn), (arg)), (arg))
*/
#define typesafe_cb_const(rtype, fn, arg) \
sizeof((fn)((const void *)0)), \
cast_if_type(rtype (*)(const void *), \
(fn), (fn)(arg), rtype (*)(typeof(arg)))
/**
* typesafe_cb_preargs - cast a callback function if it matches the arg
* @rtype: the return type of the callback function
* @fn: the callback function to cast
* @arg: the (pointer) argument to hand to the callback function.
*
* This is a version of typesafe_cb() for callbacks that take other arguments
* before the @arg.
*
* Example:
* void _register_callback(void (*fn)(int, void *arg), void *arg);
* #define register_callback(fn, arg) \
* _register_callback(typesafe_cb_preargs(void, (fn), (arg), int),\
* (arg))
*/
#define typesafe_cb_preargs(rtype, fn, arg, ...) \
cast_if_type(rtype (*)(__VA_ARGS__, void *), (fn), (fn), \
rtype (*)(__VA_ARGS__, typeof(arg)))
/**
* typesafe_cb_postargs - cast a callback function if it matches the arg
* @rtype: the return type of the callback function
* @fn: the callback function to cast
* @arg: the (pointer) argument to hand to the callback function.
*
* This is a version of typesafe_cb() for callbacks that take other arguments
* after the @arg.
*
* Example:
* void _register_callback(void (*fn)(void *arg, int), void *arg);
* #define register_callback(fn, arg) \
* _register_callback(typesafe_cb_postargs(void, (fn), (arg), int),\
* (arg))
*/
#define typesafe_cb_postargs(rtype, fn, arg, ...) \
cast_if_type(rtype (*)(void *, __VA_ARGS__), (fn), (fn), \
rtype (*)(typeof(arg), __VA_ARGS__))
/**
* typesafe_cb_cmp - cast a compare function if it matches the arg
* @rtype: the return type of the callback function
* @fn: the callback function to cast
* @arg: the (pointer) argument(s) to hand to the compare function.
*
* If a callback function takes two matching-type arguments, this macro does
* appropriate casts to a function which takes two const void * arguments if
* the callback provided takes two a const pointers to @arg.
*
* It is assumed that @arg is of pointer type: usually @arg is passed
* or assigned to a void * elsewhere anyway. Note also that the type
* arg points to must be defined.
*
* Example:
* void _my_qsort(void *base, size_t nmemb, size_t size,
* int (*cmp)(const void *, const void *));
* #define my_qsort(base, nmemb, cmpfn) \
* _my_qsort((base), (nmemb), sizeof(*(base)), \
* typesafe_cb_cmp(int, (cmpfn), (base)), (arg))
*/
#define typesafe_cb_cmp(rtype, cmpfn, arg) \
cast_if_type(rtype (*)(const void *, const void *), (cmpfn), \
rtype (*)(const typeof(*arg)*, const typeof(*arg)*))
#endif /* CCAN_CAST_IF_TYPE_H */