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"
30 start the protocol going
32 static int ctdb_tcp_start(struct ctdb_context *ctdb)
36 /* listen on our own address */
37 if (ctdb_tcp_listen(ctdb) != 0) return -1;
39 /* startup connections to the other servers - will happen on
41 for (i=0;i<ctdb->num_nodes;i++) {
42 struct ctdb_node *node = *(ctdb->nodes + i);
43 if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
44 ctdb_same_address(&ctdb->address, &node->address)) continue;
45 event_add_timed(ctdb->ev, node, timeval_zero(),
46 ctdb_tcp_node_connect, node);
54 initialise tcp portion of a ctdb node
56 static int ctdb_tcp_add_node(struct ctdb_node *node)
58 struct ctdb_tcp_node *tnode;
59 tnode = talloc_zero(node, struct ctdb_tcp_node);
60 CTDB_NO_MEMORY(node->ctdb, tnode);
63 node->private_data = tnode;
65 tnode->queue = ctdb_queue_setup(node->ctdb, node, tnode->fd, CTDB_TCP_ALIGNMENT,
66 ctdb_tcp_tnode_cb, node);
73 transport packet allocator - allows transport to control memory for packets
75 static void *ctdb_tcp_allocate_pkt(TALLOC_CTX *mem_ctx, size_t size)
77 /* tcp transport needs to round to 8 byte alignment to ensure
78 that we can use a length header and 64 bit elements in
80 size = (size+(CTDB_TCP_ALIGNMENT-1)) & ~(CTDB_TCP_ALIGNMENT-1);
81 return talloc_size(mem_ctx, size);
85 static const struct ctdb_methods ctdb_tcp_methods = {
86 .start = ctdb_tcp_start,
87 .add_node = ctdb_tcp_add_node,
88 .queue_pkt = ctdb_tcp_queue_pkt,
89 .allocate_pkt = ctdb_tcp_allocate_pkt
93 initialise tcp portion of ctdb
95 int ctdb_tcp_init(struct ctdb_context *ctdb)
97 struct ctdb_tcp *ctcp;
98 ctcp = talloc_zero(ctdb, struct ctdb_tcp);
99 CTDB_NO_MEMORY(ctdb, ctcp);
101 ctcp->listen_fd = -1;
102 ctdb->private_data = ctcp;
103 ctdb->methods = &ctdb_tcp_methods;