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eb150c86b4
With the majority of fields in the virLXCDriverPtr struct now immutable or self-locking, there is no need for practically any methods to be using the LXC driver lock. Only a handful of helper APIs now need it.
128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/*
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* Copyright (C) 2010, 2013 Red Hat, Inc.
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* Copyright IBM Corp. 2008
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*
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* lxc_conf.h: header file for linux container config functions
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*
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* Authors:
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* David L. Leskovec <dlesko at linux.vnet.ibm.com>
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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_CONF_H
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# define LXC_CONF_H
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# include "internal.h"
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# include "domain_conf.h"
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# include "domain_event.h"
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# include "capabilities.h"
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# include "virthread.h"
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# include "security/security_manager.h"
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# include "configmake.h"
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# include "vircgroup.h"
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# include "virsysinfo.h"
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# include "virusb.h"
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# include "virclosecallbacks.h"
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# define LXC_DRIVER_NAME "LXC"
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# define LXC_CONFIG_DIR SYSCONFDIR "/libvirt/lxc"
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# define LXC_STATE_DIR LOCALSTATEDIR "/run/libvirt/lxc"
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# define LXC_LOG_DIR LOCALSTATEDIR "/log/libvirt/lxc"
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# define LXC_AUTOSTART_DIR LXC_CONFIG_DIR "/autostart"
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typedef struct _virLXCDriver virLXCDriver;
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typedef virLXCDriver *virLXCDriverPtr;
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typedef struct _virLXCDriverConfig virLXCDriverConfig;
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typedef virLXCDriverConfig *virLXCDriverConfigPtr;
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struct _virLXCDriverConfig {
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virObject parent;
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char *configDir;
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char *autostartDir;
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char *stateDir;
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char *logDir;
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int log_libvirtd;
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int have_netns;
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char *securityDriverName;
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bool securityDefaultConfined;
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bool securityRequireConfined;
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};
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struct _virLXCDriver {
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virMutex lock;
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/* Require lock to get reference on 'config',
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* then lockless thereafter */
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virLXCDriverConfigPtr config;
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/* Require lock to get a reference on the object,
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* lockless access thereafter */
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virCapsPtr caps;
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/* Immutable pointer, Immutable object */
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virDomainXMLOptionPtr xmlopt;
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/* Immutable pointer, lockless APIs*/
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virSysinfoDefPtr hostsysinfo;
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/* Atomic inc/dec only */
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unsigned int nactive;
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/* Immutable pointers. Caller must provide locking */
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virStateInhibitCallback inhibitCallback;
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void *inhibitOpaque;
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/* Immutable pointer, self-locking APIs */
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virDomainObjListPtr domains;
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/* Immutable pointer. Requires lock to be held before
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* calling APIs. */
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virUSBDeviceListPtr activeUsbHostdevs;
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/* Immutable pointer, self-locking APIs */
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virDomainEventStatePtr domainEventState;
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/* Immutable pointer. self-locking APIs */
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virSecurityManagerPtr securityManager;
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/* Immutable pointer, self-locking APIs */
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virCloseCallbacksPtr closeCallbacks;
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};
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virLXCDriverConfigPtr virLXCDriverConfigNew(void);
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virLXCDriverConfigPtr virLXCDriverGetConfig(virLXCDriverPtr driver);
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int virLXCLoadDriverConfig(virLXCDriverConfigPtr cfg,
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const char *filename);
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virCapsPtr virLXCDriverCapsInit(virLXCDriverPtr driver);
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virCapsPtr virLXCDriverGetCapabilities(virLXCDriverPtr driver,
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bool refresh);
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virDomainXMLOptionPtr lxcDomainXMLConfInit(void);
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static inline void lxcDriverLock(virLXCDriverPtr driver)
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{
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virMutexLock(&driver->lock);
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}
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static inline void lxcDriverUnlock(virLXCDriverPtr driver)
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{
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virMutexUnlock(&driver->lock);
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}
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#endif /* LXC_CONF_H */
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