mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
93408f60cb
... so CTDB can also use it. Signed-off-by: Amitay Isaacs <amitay@gmail.com> Reviewed-by: Volker Lendecke <vl@samba.org>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
Implementation of a reliable server_exists()
|
|
Copyright (C) Volker Lendecke 2010
|
|
|
|
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 "includes.h"
|
|
#include "lib/util/server_id.h"
|
|
#include "serverid.h"
|
|
#include "lib/param/param.h"
|
|
#include "ctdbd_conn.h"
|
|
#include "lib/messages_ctdb.h"
|
|
#include "lib/messaging/messages_dgm.h"
|
|
|
|
static bool serverid_exists_local(const struct server_id *id)
|
|
{
|
|
bool exists = process_exists_by_pid(id->pid);
|
|
uint64_t unique;
|
|
int ret;
|
|
|
|
if (!exists) {
|
|
return false;
|
|
}
|
|
|
|
if (id->unique_id == SERVERID_UNIQUE_ID_NOT_TO_VERIFY) {
|
|
return true;
|
|
}
|
|
|
|
ret = messaging_dgm_get_unique(id->pid, &unique);
|
|
if (ret != 0) {
|
|
return false;
|
|
}
|
|
|
|
return (unique == id->unique_id);
|
|
}
|
|
|
|
bool serverid_exists(const struct server_id *id)
|
|
{
|
|
if (procid_is_local(id)) {
|
|
return serverid_exists_local(id);
|
|
}
|
|
|
|
if (lp_clustering()) {
|
|
return ctdbd_process_exists(messaging_ctdb_connection(),
|
|
id->vnn, id->pid, id->unique_id);
|
|
}
|
|
|
|
return false;
|
|
}
|