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
-struct ctdbd_connection;
-
-NTSTATUS ctdbd_init_connection(TALLOC_CTX *mem_ctx,
- struct ctdbd_connection **pconn);
-NTSTATUS ctdbd_messaging_connection(TALLOC_CTX *mem_ctx,
- struct ctdbd_connection **pconn);
+#include "replace.h"
+#include "system/filesys.h"
+#include "system/network.h"
+#include "lib/dbwrap/dbwrap.h"
+#include <tdb.h>
+#include <tevent.h>
-uint32 ctdbd_vnn(const struct ctdbd_connection *conn);
-
-NTSTATUS ctdbd_register_msg_ctx(struct ctdbd_connection *conn,
- struct messaging_context *msg_ctx);
-
-NTSTATUS ctdbd_messaging_send(struct ctdbd_connection *conn,
- uint32 dst_vnn, uint64 dst_srvid,
- struct messaging_rec *msg);
-
-bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32 vnn,
- pid_t pid);
+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);
-NTSTATUS ctdbd_db_attach(struct ctdbd_connection *conn, const char *name,
- uint32_t *db_id, int tdb_flags);
-
-NTSTATUS ctdbd_migrate(struct ctdbd_connection *conn, uint32 db_id,
- TDB_DATA key);
-
-NTSTATUS ctdbd_fetch(struct ctdbd_connection *conn, uint32 db_id,
- TDB_DATA key, TALLOC_CTX *mem_ctx, TDB_DATA *data);
-
-NTSTATUS ctdbd_traverse(uint32 db_id,
- void (*fn)(TDB_DATA key, TDB_DATA data,
+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);
-
-NTSTATUS ctdbd_register_ips(struct ctdbd_connection *conn,
- const struct sockaddr_in *server,
- const struct sockaddr_in *client,
- void (*release_ip_handler)(const char *ip_addr,
- void *private_data),
- void *private_data);
-
-NTSTATUS ctdbd_register_reconfigure(struct ctdbd_connection *conn);
-
-NTSTATUS ctdbd_persistent_store(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key, TDB_DATA data);
-NTSTATUS ctdbd_start_persistent_update(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key, TDB_DATA data);
-NTSTATUS ctdbd_cancel_persistent_update(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key, TDB_DATA 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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