ctdb/tcp/ctdb_tcp.h

   1 /*
   2    ctdb database library
   3
   4    Copyright (C) Andrew Tridgell  2006
   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 _CTDB_TCP_H
  21 #define _CTDB_TCP_H
  22
  23 /* ctdb_tcp main state */
  24 struct ctdb_tcp {
  25         struct ctdb_context *ctdb;
  26         int listen_fd;
  27 };
  28
  29 /*
  30   state associated with an incoming connection
  31 */
  32 struct ctdb_incoming {
  33         struct ctdb_context *ctdb;
  34         int fd;
  35         struct ctdb_queue *queue;
  36 };
  37
  38 /*
  39   state associated with one tcp node
  40 */
  41 struct ctdb_tcp_node {
  42         int fd;
  43         struct ctdb_queue *out_queue;
  44         struct fd_event *connect_fde;
  45         struct timed_event *connect_te;
  46 };
  47
  48
  49 /* prototypes internal to tcp transport */
  50 int ctdb_tcp_queue_pkt(struct ctdb_node *node, uint8_t *data, uint32_t length);
  51 int ctdb_tcp_listen(struct ctdb_context *ctdb);
  52 void ctdb_tcp_node_connect(struct event_context *ev, struct timed_event *te,
  53                            struct timeval t, void *private_data);
  54 void ctdb_tcp_read_cb(uint8_t *data, size_t cnt, void *args);
  55 void ctdb_tcp_tnode_cb(uint8_t *data, size_t cnt, void *private_data);
  56 void ctdb_tcp_stop_connection(struct ctdb_node *node);
  57
  58 #define CTDB_TCP_ALIGNMENT 8
  59
  60 #endif /* _CTDB_TCP_H */