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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 "common/srvid.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_old *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 tevent_context;
struct ctdb_db_context;
/*
allocate a packet for use in client<->daemon communication
*/
struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx,
enum ctdb_operation operation,
size_t length, size_t slength,
const char *type);
#define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
(type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, \
sizeof(type), #type)
int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
TDB_DATA *data, bool updatetdb);
void ctdb_request_message(struct ctdb_context *ctdb,
struct ctdb_req_header *hdr);
void ctdb_client_read_cb(uint8_t *data, size_t cnt, void *args);
int ctdb_socket_connect(struct ctdb_context *ctdb);
/*
make a ctdb call. The associated ctdb call function will be called on the DMASTER
for the given record
*/
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);
int ctdb_call(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
/* 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,
srvid_handler_fn handler,
void *private_data);
int ctdb_client_remove_message_handler(struct ctdb_context *ctdb,
uint64_t srvid, void *private_data);
/* send a ctdb message */
int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t pnn,
uint64_t srvid, TDB_DATA data);
struct ctdb_client_control_state *ctdb_control_send(struct ctdb_context *ctdb,
uint32_t destnode,
uint64_t srvid,
uint32_t opcode,
uint32_t flags,
TDB_DATA data,
TALLOC_CTX *mem_ctx,
struct timeval *timeout,
char **errormsg);
int ctdb_control_recv(struct ctdb_context *ctdb,
struct ctdb_client_control_state *state,
TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
int32_t *status, char **errormsg);
int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
uint32_t opcode, uint32_t flags, TDB_DATA data,
TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
struct timeval *timeout, char **errormsg);
int ctdb_ctrl_getvnnmap(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode, TALLOC_CTX *mem_ctx,
struct ctdb_vnn_map **vnnmap);
/*
get the recovery mode of a remote node
*/
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);
int ctdb_ctrl_getrecmode(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct timeval timeout, uint32_t destnode,
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 recovery master of a remote node
*/
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);
int ctdb_ctrl_getrecmaster(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx,
struct timeval timeout, uint32_t destnode,
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);
int ctdb_ctrl_getnodemap(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode, TALLOC_CTX *mem_ctx,
struct ctdb_node_map_old **nodemap);
int ctdb_ctrl_get_runstate(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode, uint32_t *runstate);
int ctdb_ctrl_get_debuglevel(struct ctdb_context *ctdb, uint32_t destnode,
int32_t *level);
int ctdb_ctrl_freeze(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_public_ips_flags(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx, uint32_t flags,
struct ctdb_public_ip_list_old **ips);
int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx,
struct ctdb_public_ip_list_old **ips);
int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
TALLOC_CTX *mem_ctx,
struct ctdb_iface_list_old **ifaces);
int ctdb_ctrl_modflags(struct ctdb_context *ctdb,
struct timeval timeout,
uint32_t destnode,
uint32_t set, uint32_t clear);
int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
struct ctdb_tunable_list *tunables);
/*
set some flags
*/
void ctdb_set_flags(struct ctdb_context *ctdb, unsigned flags);
const char *ctdb_get_socketname(struct ctdb_context *ctdb);
/* return pnn of this node */
uint32_t ctdb_get_pnn(struct ctdb_context *ctdb);
typedef void (*client_async_callback)(struct ctdb_context *ctdb,
uint32_t node_pnn, int32_t res,
TDB_DATA outdata, void *callback_data);
struct client_async_data {
enum ctdb_controls opcode;
bool dont_log_errors;
uint32_t count;
uint32_t fail_count;
client_async_callback callback;
client_async_callback fail_callback;
void *callback_data;
};
void ctdb_client_async_add(struct client_async_data *data,
struct ctdb_client_control_state *state);
int ctdb_client_async_wait(struct ctdb_context *ctdb,
struct client_async_data *data);
int ctdb_client_async_control(struct ctdb_context *ctdb,
enum ctdb_controls opcode, uint32_t *nodes,
uint64_t srvid, struct timeval timeout,
bool dont_log_errors, TDB_DATA data,
client_async_callback client_callback,
client_async_callback fail_callback,
void *callback_data);
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(struct ctdb_context *ctdb,
struct ctdb_node_map_old *node_map,
TALLOC_CTX *mem_ctx, bool include_self);
uint32_t *list_of_connected_nodes(struct ctdb_context *ctdb,
struct ctdb_node_map_old *node_map,
TALLOC_CTX *mem_ctx, bool include_self);
/*
get capabilities of a remote node
*/
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);
int ctdb_ctrl_getcapabilities(struct ctdb_context *ctdb,
struct timeval timeout, uint32_t destnode,
uint32_t *capabilities);
struct ctdb_node_capabilities {
bool retrieved;
uint32_t capabilities;
};
/* Retrieve capabilities for all connected nodes. The length of the
* returned array can be calculated using talloc_array_length(). */
struct ctdb_node_capabilities *ctdb_get_capabilities(
struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx,
struct timeval timeout,
struct ctdb_node_map_old *nodemap);
/* Get capabilities for specified node, NULL if not found */
uint32_t *ctdb_get_node_capabilities(struct ctdb_node_capabilities *caps,
uint32_t pnn);
/* True if the given node has all of the required capabilities */
bool ctdb_node_has_capabilities(struct ctdb_node_capabilities *caps,
uint32_t pnn, uint32_t capabilities_required);
int ctdb_ctrl_recd_ping(struct ctdb_context *ctdb);
int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb,
struct timeval timeout, double latency);
int ctdb_ctrl_set_ban(struct ctdb_context *ctdb, struct timeval timeout,
uint32_t destnode, struct ctdb_ban_state *bantime);
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);
#endif /* _CTDB_CLIENT_H */
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