From 5cb78383fafa15c2ff7a4ccd194cccd5cf5cd263 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Fri, 19 Jan 2007 03:54:48 +0000
Subject: 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)
---
 source4/cluster/ctdb/ctdb_cluster.c | 138 ++++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 source4/cluster/ctdb/ctdb_cluster.c

(limited to 'source4/cluster/ctdb/ctdb_cluster.c')

diff --git a/source4/cluster/ctdb/ctdb_cluster.c b/source4/cluster/ctdb/ctdb_cluster.c
new file mode 100644
index 0000000000..df16f2f8b5
--- /dev/null
+++ b/source4/cluster/ctdb/ctdb_cluster.c
@@ -0,0 +1,138 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   ctdb clustering hooks
+
+   Copyright (C) Andrew Tridgell 2006
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program 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 General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "cluster/cluster.h"
+#include "system/filesys.h"
+#include "cluster/cluster_private.h"
+#include "lib/tdb/include/tdb.h"
+#include "cluster/ctdb/include/ctdb.h"
+
+struct cluster_state {
+	struct ctdb_context *ctdb;
+};
+
+
+/*
+  return a server_id for a ctdb node
+*/
+static struct server_id ctdb_id(struct cluster_ops *ops, uint32_t id)
+{
+	struct ctdb_context *ctdb = ops->private;
+	struct server_id server_id;
+	server_id.node = ctdb_get_vnn(ctdb);
+	server_id.id = id;
+	return server_id;
+}
+
+
+/*
+  return a server_id as a string
+*/
+static const char *ctdb_id_string(struct cluster_ops *ops, 
+				  TALLOC_CTX *mem_ctx, struct server_id id)
+{
+	return talloc_asprintf(mem_ctx, "%u.%u", id.node, id.id);
+}
+
+static struct cluster_ops cluster_ctdb_ops = {
+	.cluster_id        = ctdb_id,
+	.cluster_id_string = ctdb_id_string,
+	.private           = NULL
+};
+
+/* initialise ctdb */
+void cluster_ctdb_init(struct event_context *ev)
+{
+	const char *nlist;
+	const char *address;
+	const char *transport;
+	struct cluster_state *state;
+	int ret;
+
+	nlist = lp_parm_string(-1, "ctdb", "nlist");
+	if (nlist == NULL) return;
+
+	address = lp_parm_string(-1, "ctdb", "address");
+	if (address == NULL) return;
+
+	transport = lp_parm_string(-1, "ctdb", "transport");
+	if (transport == NULL) {
+		transport = "tcp";
+	}
+
+	state = talloc(ev, struct cluster_state);
+	if (state == NULL) goto failed;
+
+	state->ctdb = ctdb_init(ev);
+	if (state->ctdb == NULL) goto failed;
+
+	cluster_ctdb_ops.private = state->ctdb;
+
+	ret = ctdb_set_transport(state->ctdb, transport);
+	if (ret == -1) {
+		DEBUG(0,("ctdb_set_transport failed - %s\n",
+			 ctdb_errstr(state->ctdb)));
+		goto failed;
+	}
+	
+//	ctdb_set_flags(state->ctdb, CTDB_FLAG_SELF_CONNECT);
+
+	/* tell ctdb what address to listen on */
+        ret = ctdb_set_address(state->ctdb, address);
+        if (ret == -1) {
+                DEBUG(0,("ctdb_set_address failed - %s\n", ctdb_errstr(state->ctdb)));
+		goto failed;
+        }
+
+        /* tell ctdb what nodes are available */
+        ret = ctdb_set_nlist(state->ctdb, nlist);
+        if (ret == -1) {
+                DEBUG(0,("ctdb_set_nlist failed - %s\n", ctdb_errstr(state->ctdb)));
+		goto failed;
+        }
+
+	ret = ctdb_attach(state->ctdb, "cluster.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666);
+	if (ret == -1) {
+		DEBUG(0,("ctdb_attach failed - %s\n", ctdb_errstr(state->ctdb)));
+		goto failed;
+	}
+
+	/* start the protocol running */
+	ret = ctdb_start(state->ctdb);
+        if (ret == -1) {
+                DEBUG(0,("ctdb_start failed - %s\n", ctdb_errstr(state->ctdb)));
+		goto failed;
+        }
+
+	/* wait until all nodes are connected (should not be needed
+	   outide of test code) */
+	ctdb_connect_wait(state->ctdb);
+
+	cluster_set_ops(&cluster_ctdb_ops);
+	return;
+	
+failed:
+	DEBUG(0,("cluster_ctdb_init failed\n"));
+	talloc_free(state);
+}
-- 
cgit