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Diffstat (limited to '')
| -rw-r--r-- | source3/include/ctdbd_conn.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/source3/include/ctdbd_conn.h b/source3/include/ctdbd_conn.h new file mode 100644 index 0000000..0618d07 --- /dev/null +++ b/source3/include/ctdbd_conn.h @@ -0,0 +1,194 @@ +/* + 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 */ |