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/*
Unix SMB/CIFS implementation.
Samba3 ctdb connection handling
Copyright (C) Volker Lendecke 2007
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 _CTDBD_CONN_H
#define _CTDBD_CONN_H
#include "replace.h"
#include "system/filesys.h"
#include "system/network.h"
#include "lib/dbwrap/dbwrap.h"
#include <tdb.h>
#include <tevent.h>
struct ctdbd_connection;
struct messaging_context;
struct messaging_rec;
int ctdbd_init_connection(TALLOC_CTX *mem_ctx,
const char *sockname, int timeout,
struct ctdbd_connection **pconn);
int ctdbd_init_async_connection(
TALLOC_CTX *mem_ctx,
const char *sockname,
int timeout,
struct ctdbd_connection **pconn);
int ctdbd_reinit_connection(TALLOC_CTX *mem_ctx,
const char *sockname, int timeout,
struct ctdbd_connection *conn);
uint32_t ctdbd_vnn(const struct ctdbd_connection *conn);
int ctdbd_conn_get_fd(struct ctdbd_connection *conn);
void ctdbd_socket_readable(struct tevent_context *ev,
struct ctdbd_connection *conn);
int ctdbd_messaging_send_iov(struct ctdbd_connection *conn,
uint32_t dst_vnn, uint64_t dst_srvid,
const struct iovec *iov, int iovlen);
bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32_t vnn,
pid_t pid, uint64_t unique_id);
char *ctdbd_dbpath(struct ctdbd_connection *conn,
TALLOC_CTX *mem_ctx, uint32_t db_id);
int ctdbd_db_attach(struct ctdbd_connection *conn, const char *name,
uint32_t *db_id, bool persistent);
int ctdbd_migrate(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key);
int ctdbd_parse(struct ctdbd_connection *conn, uint32_t db_id,
TDB_DATA key, bool local_copy,
void (*parser)(TDB_DATA key, TDB_DATA data,
void *private_data),
void *private_data);
int ctdbd_traverse(struct ctdbd_connection *master, uint32_t db_id,
void (*fn)(TDB_DATA key, TDB_DATA data,
void *private_data),
void *private_data);
int ctdbd_register_ips(struct ctdbd_connection *conn,
const struct sockaddr_storage *server,
const struct sockaddr_storage *client,
int (*cb)(struct tevent_context *ev,
uint32_t src_vnn, uint32_t dst_vnn,
uint64_t dst_srvid,
const uint8_t *msg, size_t msglen,
void *private_data),
void *private_data);
void ctdbd_unregister_ips(struct ctdbd_connection *conn,
const struct sockaddr_storage *_server,
const struct sockaddr_storage *_client,
int (*cb)(struct tevent_context *ev,
uint32_t src_vnn,
uint32_t dst_vnn,
uint64_t dst_srvid,
const uint8_t *msg,
size_t msglen,
void *private_data),
void *private_data);
void ctdbd_passed_ips(struct ctdbd_connection *conn,
const struct sockaddr_storage *_server,
const struct sockaddr_storage *_client,
int (*cb)(struct tevent_context *ev,
uint32_t src_vnn,
uint32_t dst_vnn,
uint64_t dst_srvid,
const uint8_t *msg,
size_t msglen,
void *private_data),
void *private_data);
/*
* call @cb for each public IP. If @cb returns non-zero, then break the loop
* and propagate the return value upwards.
* @returns: 0 on success, where all @cb invocations also returned zero
* ENOMEM on memory allocation failure
* EIO on ctdbd connection failure
* @cb() return value if non-zero
*/
int ctdbd_public_ip_foreach(struct ctdbd_connection *conn,
int (*cb)(uint32_t total_ip_count,
const struct sockaddr_storage *ip,
bool is_movable_ip,
void *private_data),
void *private_data);
int ctdbd_all_ip_foreach(struct ctdbd_connection *conn,
bool include_node_ips,
bool include_public_ips,
int (*cb)(uint32_t total_ip_count,
const struct sockaddr_storage *ip,
uint32_t pinned_pnn,
uint32_t current_pnn,
void *private_data),
void *private_data);
int ctdbd_control_local(struct ctdbd_connection *conn, uint32_t opcode,
uint64_t srvid, uint32_t flags, TDB_DATA data,
TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
int32_t *cstatus);
int ctdb_watch_us(struct ctdbd_connection *conn);
int ctdb_unwatch(struct ctdbd_connection *conn);
struct ctdb_req_message_old;
int register_with_ctdbd(struct ctdbd_connection *conn, uint64_t srvid,
int (*cb)(struct tevent_context *ev,
uint32_t src_vnn, uint32_t dst_vnn,
uint64_t dst_srvid,
const uint8_t *msg, size_t msglen,
void *private_data),
void *private_data);
void deregister_from_ctdbd(struct ctdbd_connection *conn,
uint64_t srvid,
int (*cb)(struct tevent_context *ev,
uint32_t src_vnn,
uint32_t dst_vnn,
uint64_t dst_srvid,
const uint8_t *msg,
size_t msglen,
void *private_data),
void *private_data);
int ctdbd_probe(const char *sockname, int timeout);
struct ctdb_req_header;
void ctdbd_prep_hdr_next_reqid(
struct ctdbd_connection *conn, struct ctdb_req_header *hdr);
/*
* Async ctdb_request. iov[0] must start with an initialized
* struct ctdb_req_header
*/
struct tevent_req *ctdbd_req_send(
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct ctdbd_connection *conn,
struct iovec *iov,
size_t num_iov);
int ctdbd_req_recv(
struct tevent_req *req,
TALLOC_CTX *mem_ctx,
struct ctdb_req_header **reply);
struct tevent_req *ctdbd_parse_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct ctdbd_connection *conn,
uint32_t db_id,
TDB_DATA key,
bool local_copy,
void (*parser)(TDB_DATA key,
TDB_DATA data,
void *private_data),
void *private_data,
enum dbwrap_req_state *req_state);
int ctdbd_parse_recv(struct tevent_req *req);
#endif /* _CTDBD_CONN_H */
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