mirror of https://gitee.com/openkylin/qemu.git
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/*
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* QEMU backup
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*
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* Copyright (c) 2013 Proxmox Server Solutions
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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* Copyright (c) 2016 Intel Corporation
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* Copyright (c) 2016 FUJITSU LIMITED
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*
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* Authors:
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* Dietmar Maurer <dietmar@proxmox.com>
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* Changlong Xie <xiecl.fnst@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef BLOCK_BACKUP_H
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#define BLOCK_BACKUP_H
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#include "block/block_int.h"
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typedef struct CowRequest {
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int64_t start_byte;
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int64_t end_byte;
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QLIST_ENTRY(CowRequest) list;
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CoQueue wait_queue; /* coroutines blocked on this request */
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} CowRequest;
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void backup_wait_for_overlapping_requests(BlockJob *job, int64_t offset,
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uint64_t bytes);
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void backup_cow_request_begin(CowRequest *req, BlockJob *job,
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int64_t offset, uint64_t bytes);
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void backup_cow_request_end(CowRequest *req);
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void backup_do_checkpoint(BlockJob *job, Error **errp);
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#endif
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