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114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*
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* qemu_saveimage.h: Infrastructure for saving qemu state to a file
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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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#pragma once
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#include "virconftypes.h"
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#include "qemu_conf.h"
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#include "qemu_domain.h"
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/* It would be nice to replace 'Qemud' with 'Qemu' but
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* this magic string is ABI, so it can't be changed
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*/
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#define QEMU_SAVE_MAGIC "LibvirtQemudSave"
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#define QEMU_SAVE_PARTIAL "LibvirtQemudPart"
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#define QEMU_SAVE_VERSION 2
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G_STATIC_ASSERT(sizeof(QEMU_SAVE_MAGIC) == sizeof(QEMU_SAVE_PARTIAL));
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typedef struct _virQEMUSaveHeader virQEMUSaveHeader;
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struct _virQEMUSaveHeader {
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char magic[sizeof(QEMU_SAVE_MAGIC)-1];
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uint32_t version;
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uint32_t data_len;
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uint32_t was_running;
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uint32_t compressed;
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uint32_t cookieOffset;
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uint32_t unused[14];
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};
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typedef struct _virQEMUSaveData virQEMUSaveData;
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struct _virQEMUSaveData {
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virQEMUSaveHeader header;
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char *xml;
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char *cookie;
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};
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virDomainDef *
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qemuSaveImageUpdateDef(virQEMUDriver *driver,
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virDomainDef *def,
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const char *newxml);
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int
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qemuSaveImageStartVM(virConnectPtr conn,
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virQEMUDriver *driver,
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virDomainObj *vm,
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int *fd,
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virQEMUSaveData *data,
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const char *path,
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bool start_paused,
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bool reset_nvram,
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virDomainAsyncJob asyncJob)
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ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5) ATTRIBUTE_NONNULL(6);
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int
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qemuSaveImageOpen(virQEMUDriver *driver,
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virQEMUCaps *qemuCaps,
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const char *path,
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virDomainDef **ret_def,
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virQEMUSaveData **ret_data,
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bool bypass_cache,
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virFileWrapperFd **wrapperFd,
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bool open_write,
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bool unlink_corrupt)
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ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
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int
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qemuSaveImageGetCompressionProgram(const char *imageFormat,
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virCommand **compressor,
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const char *styleFormat,
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bool use_raw_on_fail)
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ATTRIBUTE_NONNULL(2);
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int
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qemuSaveImageCreate(virQEMUDriver *driver,
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virDomainObj *vm,
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const char *path,
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virQEMUSaveData *data,
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virCommand *compressor,
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unsigned int flags,
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virDomainAsyncJob asyncJob);
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int
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virQEMUSaveDataWrite(virQEMUSaveData *data,
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int fd,
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const char *path);
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virQEMUSaveData *
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virQEMUSaveDataNew(char *domXML,
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qemuDomainSaveCookie *cookieObj,
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bool running,
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int compressed,
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virDomainXMLOption *xmlopt);
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void
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virQEMUSaveDataFree(virQEMUSaveData *data);
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