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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
/*
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Unix SMB/CIFS implementation.
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Implementation of a reliable server_exists()
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Copyright (C) Volker Lendecke 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "lib/util/server_id.h"
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#include "serverid.h"
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#include "lib/param/param.h"
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#include "ctdbd_conn.h"
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#include "lib/messages_ctdb.h"
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#include "lib/messaging/messages_dgm.h"
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static bool serverid_exists_local(const struct server_id *id)
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{
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bool exists = process_exists_by_pid(id->pid);
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uint64_t unique;
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int ret;
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if (!exists) {
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return false;
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}
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if (id->unique_id == SERVERID_UNIQUE_ID_NOT_TO_VERIFY) {
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return true;
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}
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ret = messaging_dgm_get_unique(id->pid, &unique);
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if (ret != 0) {
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return false;
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}
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return (unique == id->unique_id);
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}
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bool serverid_exists(const struct server_id *id)
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{
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if (procid_is_local(id)) {
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return serverid_exists_local(id);
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}
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if (lp_clustering()) {
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return ctdbd_process_exists(messaging_ctdb_connection(),
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id->vnn, id->pid, id->unique_id);
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}
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return false;
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}
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