source3/include/ctdbd_conn.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Samba3 ctdb connection handling
   4    Copyright (C) Volker Lendecke 2007
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef _CTDBD_CONN_H
  21 #define _CTDBD_CONN_H
  22
  23 #include "replace.h"
  24 #include "system/filesys.h"
  25 #include "system/network.h"
  26 #include "lib/dbwrap/dbwrap.h"
  27 #include <tdb.h>
  28 #include <tevent.h>
  29
  30 struct ctdbd_connection;
  31 struct messaging_context;
  32 struct messaging_rec;
  33
  34 int ctdbd_init_connection(TALLOC_CTX *mem_ctx,
  35                           const char *sockname, int timeout,
  36                           struct ctdbd_connection **pconn);
  37 int ctdbd_reinit_connection(TALLOC_CTX *mem_ctx,
  38                             const char *sockname, int timeout,
  39                             struct ctdbd_connection *conn);
  40 int ctdbd_setup_fde(struct ctdbd_connection *conn, struct tevent_context *ev);
  41
  42 uint32_t ctdbd_vnn(const struct ctdbd_connection *conn);
  43
  44 int ctdbd_conn_get_fd(struct ctdbd_connection *conn);
  45 void ctdbd_socket_readable(struct tevent_context *ev,
  46                            struct ctdbd_connection *conn);
  47
  48 int ctdbd_messaging_send_iov(struct ctdbd_connection *conn,
  49                              uint32_t dst_vnn, uint64_t dst_srvid,
  50                              const struct iovec *iov, int iovlen);
  51
  52 bool ctdbd_process_exists(struct ctdbd_connection *conn, uint32_t vnn,
  53                           pid_t pid, uint64_t unique_id);
  54
  55 char *ctdbd_dbpath(struct ctdbd_connection *conn,
  56                    TALLOC_CTX *mem_ctx, uint32_t db_id);
  57
  58 int ctdbd_db_attach(struct ctdbd_connection *conn, const char *name,
  59                     uint32_t *db_id, bool persistent);
  60
  61 int ctdbd_migrate(struct ctdbd_connection *conn, uint32_t db_id, TDB_DATA key);
  62
  63 int ctdbd_parse(struct ctdbd_connection *conn, uint32_t db_id,
  64                 TDB_DATA key, bool local_copy,
  65                 void (*parser)(TDB_DATA key, TDB_DATA data,
  66                                void *private_data),
  67                 void *private_data);
  68
  69 int ctdbd_traverse(struct ctdbd_connection *master, uint32_t db_id,
  70                    void (*fn)(TDB_DATA key, TDB_DATA data,
  71                               void *private_data),
  72                    void *private_data);
  73
  74 int ctdbd_register_ips(struct ctdbd_connection *conn,
  75                        const struct sockaddr_storage *server,
  76                        const struct sockaddr_storage *client,
  77                        int (*cb)(struct tevent_context *ev,
  78                                  uint32_t src_vnn, uint32_t dst_vnn,
  79                                  uint64_t dst_srvid,
  80                                  const uint8_t *msg, size_t msglen,
  81                                  void *private_data),
  82                        void *private_data);
  83
  84 int ctdbd_control_local(struct ctdbd_connection *conn, uint32_t opcode,
  85                         uint64_t srvid, uint32_t flags, TDB_DATA data,
  86                         TALLOC_CTX *mem_ctx, TDB_DATA *outdata,
  87                         int32_t *cstatus);
  88 int ctdb_watch_us(struct ctdbd_connection *conn);
  89 int ctdb_unwatch(struct ctdbd_connection *conn);
  90
  91 struct ctdb_req_message_old;
  92
  93 int register_with_ctdbd(struct ctdbd_connection *conn, uint64_t srvid,
  94                         int (*cb)(struct tevent_context *ev,
  95                                   uint32_t src_vnn, uint32_t dst_vnn,
  96                                   uint64_t dst_srvid,
  97                                   const uint8_t *msg, size_t msglen,
  98                                   void *private_data),
  99                         void *private_data);
 100 int ctdbd_probe(const char *sockname, int timeout);
 101
 102 struct tevent_req *ctdbd_parse_send(TALLOC_CTX *mem_ctx,
 103                                     struct tevent_context *ev,
 104                                     struct ctdbd_connection *conn,
 105                                     uint32_t db_id,
 106                                     TDB_DATA key,
 107                                     bool local_copy,
 108                                     void (*parser)(TDB_DATA key,
 109                                                    TDB_DATA data,
 110                                                    void *private_data),
 111                                     void *private_data,
 112                                     enum dbwrap_req_state *req_state);
 113 int ctdbd_parse_recv(struct tevent_req *req);
 114
 115 #endif /* _CTDBD_CONN_H */