r20889: import ctdb cluster backend from bzr

it will be interesting to see how the build farm handles this
(This used to be commit 53be449630bd67d649a9e70cc7e25a9799c0616b)

1 files changed, 102 insertions, 0 deletions

diff --git a/source4/cluster/ctdb/tcp/tcp_init.c b/source4/cluster/ctdb/tcp/tcp_init.c
new file mode 100644
index 0000000000..b8ee8cb30e
--- /dev/null
+++ b/source4/cluster/ctdb/tcp/tcp_init.c
@@ -0,0 +1,102 @@
+/* 
+   ctdb over TCP
+
+   Copyright (C) Andrew Tridgell  2006
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "includes.h"
+#include "lib/tdb/include/tdb.h"
+#include "lib/events/events.h"
+#include "system/network.h"
+#include "system/filesys.h"
+#include "cluster/ctdb/include/ctdb_private.h"
+#include "ctdb_tcp.h"
+
+/*
+  start the protocol going
+*/
+int ctdb_tcp_start(struct ctdb_context *ctdb)
+{
+	int i;
+
+	/* listen on our own address */
+	if (ctdb_tcp_listen(ctdb) != 0) return -1;
+
+	/* startup connections to the other servers - will happen on
+	   next event loop */
+	for (i=0;i<ctdb->num_nodes;i++) {
+		struct ctdb_node *node = *(ctdb->nodes + i);
+		if (!(ctdb->flags & CTDB_FLAG_SELF_CONNECT) &&
+		    ctdb_same_address(&ctdb->address, &node->address)) continue;
+		event_add_timed(ctdb->ev, node, timeval_zero(), 
+				ctdb_tcp_node_connect, node);
+	}
+
+	return 0;
+}
+
+
+/*
+  initialise tcp portion of a ctdb node 
+*/
+int ctdb_tcp_add_node(struct ctdb_node *node)
+{
+	struct ctdb_tcp_node *tnode;
+	tnode = talloc_zero(node, struct ctdb_tcp_node);
+	CTDB_NO_MEMORY(node->ctdb, tnode);
+
+	tnode->fd = -1;
+	node->private = tnode;
+	return 0;
+}
+
+
+/*
+  transport packet allocator - allows transport to control memory for packets
+*/
+void *ctdb_tcp_allocate_pkt(struct ctdb_context *ctdb, size_t size)
+{
+	/* tcp transport needs to round to 8 byte alignment to ensure
+	   that we can use a length header and 64 bit elements in
+	   structures */
+	size = (size+(CTDB_TCP_ALIGNMENT-1)) & ~(CTDB_TCP_ALIGNMENT-1);
+	return talloc_size(ctdb, size);
+}
+
+
+static const struct ctdb_methods ctdb_tcp_methods = {
+	.start     = ctdb_tcp_start,
+	.add_node  = ctdb_tcp_add_node,
+	.queue_pkt = ctdb_tcp_queue_pkt,
+	.allocate_pkt = ctdb_tcp_allocate_pkt
+};
+
+/*
+  initialise tcp portion of ctdb 
+*/
+int ctdb_tcp_init(struct ctdb_context *ctdb)
+{
+	struct ctdb_tcp *ctcp;
+	ctcp = talloc_zero(ctdb, struct ctdb_tcp);
+	CTDB_NO_MEMORY(ctdb, ctcp);
+
+	ctcp->listen_fd = -1;
+	ctdb->private = ctcp;
+	ctdb->methods = &ctdb_tcp_methods;
+	return 0;
+}
+