4 Copyright (C) Andrew Tridgell 2006
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2 of the License, or (at your option) any later version.
11 This library 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 GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with this library; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "lib/tdb/include/tdb.h"
23 #include "lib/events/events.h"
24 #include "system/network.h"
25 #include "system/filesys.h"
26 #include "../include/ctdb_private.h"
31 initialise tcp portion of a ctdb node
33 static int ctdb_tcp_add_node(struct ctdb_node *node)
35 struct ctdb_tcp_node *tnode;
36 tnode = talloc_zero(node, struct ctdb_tcp_node);
37 CTDB_NO_MEMORY(node->ctdb, tnode);
40 node->private_data = tnode;
42 tnode->queue = ctdb_queue_setup(node->ctdb, node, tnode->fd, CTDB_TCP_ALIGNMENT,
43 ctdb_tcp_tnode_cb, node);
49 initialise transport structures
51 static int ctdb_tcp_initialise(struct ctdb_context *ctdb)
55 /* listen on our own address */
56 if (ctdb_tcp_listen(ctdb) != 0) return -1;
58 for (i=0; i<ctdb->num_nodes; i++) {
59 if (ctdb_tcp_add_node(ctdb->nodes[i]) != 0) {
60 DEBUG(0, ("methods->add_node failed at %d\n", i));
69 start the protocol going
71 static int ctdb_tcp_start(struct ctdb_context *ctdb)
75 /* startup connections to the other servers - will happen on
77 for (i=0;i<ctdb->num_nodes;i++) {
78 struct ctdb_node *node = *(ctdb->nodes + i);
79 if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
80 ctdb_same_address(&ctdb->address, &node->address)) continue;
81 event_add_timed(ctdb->ev, node, timeval_zero(),
82 ctdb_tcp_node_connect, node);
90 transport packet allocator - allows transport to control memory for packets
92 static void *ctdb_tcp_allocate_pkt(TALLOC_CTX *mem_ctx, size_t size)
94 /* tcp transport needs to round to 8 byte alignment to ensure
95 that we can use a length header and 64 bit elements in
97 size = (size+(CTDB_TCP_ALIGNMENT-1)) & ~(CTDB_TCP_ALIGNMENT-1);
98 return talloc_size(mem_ctx, size);
102 static const struct ctdb_methods ctdb_tcp_methods = {
103 .initialise = ctdb_tcp_initialise,
104 .start = ctdb_tcp_start,
105 .queue_pkt = ctdb_tcp_queue_pkt,
106 .add_node = ctdb_tcp_add_node,
107 .allocate_pkt = ctdb_tcp_allocate_pkt
111 initialise tcp portion of ctdb
113 int ctdb_tcp_init(struct ctdb_context *ctdb)
115 struct ctdb_tcp *ctcp;
116 ctcp = talloc_zero(ctdb, struct ctdb_tcp);
117 CTDB_NO_MEMORY(ctdb, ctcp);
119 ctcp->listen_fd = -1;
120 ctdb->private_data = ctcp;
121 ctdb->methods = &ctdb_tcp_methods;