1 files changed, 137 insertions, 0 deletions
diff --git a/ctdb/client/client_util.c b/ctdb/client/client_util.c
new file mode 100644
index 0000000..35323ff
--- /dev/null
+++ b/ctdb/client/client_util.c
@@ -0,0 +1,137 @@
+/*
+   CTDB client code
+
+   Copyright (C) Amitay Isaacs  2015
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/network.h"
+#include "system/filesys.h"
+
+#include <talloc.h>
+#include <tevent.h>
+#include <tdb.h>
+
+#include "common/logging.h"
+
+#include "lib/util/debug.h"
+
+#include "protocol/protocol.h"
+#include "protocol/protocol_api.h"
+#include "client/client_private.h"
+#include "client/client.h"
+#include "client/client_sync.h"
+
+int list_of_nodes(struct ctdb_node_map *nodemap,
+		  uint32_t flags_mask, uint32_t exclude_pnn,
+		  TALLOC_CTX *mem_ctx, uint32_t **pnn_list)
+{
+	int num_nodes = 0;
+	uint32_t *list;
+	unsigned int i;
+
+	/* Allocate the list of same number of nodes */
+	list = talloc_array(mem_ctx, uint32_t, nodemap->num);
+	if (list == NULL) {
+		return -1;
+	}
+
+	for (i=0; i<nodemap->num; i++) {
+		if (nodemap->node[i].flags & flags_mask) {
+			continue;
+		}
+		if (nodemap->node[i].pnn == exclude_pnn) {
+			continue;
+		}
+		list[num_nodes] = nodemap->node[i].pnn;
+		num_nodes++;
+	}
+
+	*pnn_list = list;
+	return num_nodes;
+}
+
+int list_of_active_nodes(struct ctdb_node_map *nodemap, uint32_t exclude_pnn,
+			 TALLOC_CTX *mem_ctx, uint32_t **pnn_list)
+{
+	return list_of_nodes(nodemap, NODE_FLAGS_INACTIVE, exclude_pnn,
+			     mem_ctx, pnn_list);
+}
+
+int list_of_connected_nodes(struct ctdb_node_map *nodemap,
+			    uint32_t exclude_pnn,
+			    TALLOC_CTX *mem_ctx, uint32_t **pnn_list)
+{
+	return list_of_nodes(nodemap, NODE_FLAGS_DISCONNECTED, exclude_pnn,
+			     mem_ctx, pnn_list);
+}
+
+struct ctdb_server_id ctdb_client_get_server_id(
+				struct ctdb_client_context *client,
+				uint32_t task_id)
+{
+	struct ctdb_server_id sid;
+
+	sid.pid = getpid();
+	sid.task_id = task_id;
+	sid.vnn = ctdb_client_pnn(client);
+	sid.unique_id = task_id;
+	sid.unique_id = (sid.unique_id << 32) | sid.pid;
+
+	return sid;
+}
+
+bool ctdb_server_id_equal(struct ctdb_server_id *sid1,
+			  struct ctdb_server_id *sid2)
+{
+	if (sid1->pid != sid2->pid) {
+		return false;
+	}
+	if (sid1->task_id != sid2->task_id) {
+		return false;
+	}
+	if (sid1->vnn != sid2->vnn) {
+		return false;
+	}
+	if (sid1->unique_id != sid2->unique_id) {
+		return false;
+	}
+
+	return true;
+}
+
+int ctdb_server_id_exists(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+			  struct ctdb_client_context *client,
+			  struct ctdb_server_id *sid, bool *exists)
+{
+	int result;
+	int ret;
+
+	ret = ctdb_ctrl_process_exists(mem_ctx, ev, client, sid->vnn,
+				       tevent_timeval_zero(),
+				       sid->pid, &result);
+	if (ret != 0) {
+		return ret;
+	}
+
+	if (result == 1) {
+		*exists = true;
+	} else {
+		*exists = false;
+	}
+
+	return 0;
+}