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The reboot() syscall is allowed by new kernels for LXC containers. The LXC controller can detect whether a reboot was requested (instead of a normal shutdown) by looking at the "init" process exit status. If a reboot was triggered, the exit status will record SIGHUP as the kill reason. The LXC controller has cleared all its capabilities, and the veth network devices will no longer exist at this time. Thus it cannot restart the container init process itself. Instead it emits an event which is picked up by the LXC driver in libvirtd. This will then re-create the container, using the same configuration as it was previously running with (ie it will not activate 'newDef'). Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* Copyright (C) 2010-2012 Red Hat, Inc.
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* Copyright IBM Corp. 2008
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*
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* lxc_domain.h: LXC domain helpers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LXC_DOMAIN_H__
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# define __LXC_DOMAIN_H__
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# include "lxc_conf.h"
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# include "lxc_monitor.h"
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typedef struct _virLXCDomainObjPrivate virLXCDomainObjPrivate;
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typedef virLXCDomainObjPrivate *virLXCDomainObjPrivatePtr;
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struct _virLXCDomainObjPrivate {
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virLXCMonitorPtr monitor;
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bool doneStopEvent;
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int stopReason;
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bool wantReboot;
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};
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void virLXCDomainSetPrivateDataHooks(virCapsPtr caps);
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#endif /* __LXC_DOMAIN_H__ */
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