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/*
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"
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;
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);
}
int ctdb_ctrl_modflags(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
struct ctdb_client_context *client,
uint32_t destnode, struct timeval timeout,
uint32_t set, uint32_t clear)
{
struct ctdb_node_map *nodemap;
struct ctdb_node_flag_change flag_change;
struct ctdb_req_control request;
uint32_t *pnn_list;
int ret, count;
ret = ctdb_ctrl_get_nodemap(mem_ctx, ev, client, destnode,
tevent_timeval_zero(), &nodemap);
if (ret != 0) {
return ret;
}
flag_change.pnn = destnode;
flag_change.old_flags = nodemap->node[destnode].flags;
flag_change.new_flags = flag_change.old_flags | set;
flag_change.new_flags &= ~clear;
count = list_of_connected_nodes(nodemap, -1, mem_ctx, &pnn_list);
if (count == -1) {
return ENOMEM;
}
ctdb_req_control_modify_flags(&request, &flag_change);
ret = ctdb_client_control_multi(mem_ctx, ev, client, pnn_list, count,
tevent_timeval_zero(), &request,
NULL, NULL);
return ret;
}
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)
{
uint8_t *result;
int ret;
ret = ctdb_ctrl_check_srvids(mem_ctx, ev, client, sid->vnn,
tevent_timeval_zero(),
&sid->unique_id, 1, &result);
if (ret != 0) {
return ret;
}
if (result[0] == 1) {
*exists = true;
} else {
*exists = false;
}
return 0;
}
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