backup.h

   1 /*
   2  * QEMU backup related definitions
   3  *
   4  * Copyright (C) 2013 Proxmox Server Solutions
   5  *
   6  * Authors:
   7  *  Dietmar Maurer (dietmar@proxmox.com)
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 #ifndef QEMU_BACKUP_H
  15 #define QEMU_BACKUP_H
  16
  17 #define BACKUP_CLUSTER_BITS 16
  18 #define BACKUP_CLUSTER_SIZE (1<<BACKUP_CLUSTER_BITS)
  19 #define BACKUP_BLOCKS_PER_CLUSTER (BACKUP_CLUSTER_SIZE/BDRV_SECTOR_SIZE)
  20
  21 typedef int BackupDumpFunc(void *opaque, BlockDriverState *bs,
  22                            int64_t cluster_num, unsigned char *buf);
  23
  24 void backup_job_start(BlockDriverState *bs, bool cancel);
  25
  26 int backup_job_create(BlockDriverState *bs, BackupDumpFunc *backup_dump_cb,
  27                       BlockDriverCompletionFunc *backup_complete_cb,
  28                       void *opaque, int64_t speed);
  29
  30 #endif /* QEMU_BACKUP_H */