migration/block.h

   1 /*
   2  * QEMU live block migration
   3  *
   4  * Copyright IBM, Corp. 2009
   5  *
   6  * Authors:
   7  *  Liran Schour   <[email protected]>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  */
  13
  14 #ifndef MIGRATION_BLOCK_H
  15 #define MIGRATION_BLOCK_H
  16
  17 #ifdef CONFIG_LIVE_BLOCK_MIGRATION
  18 int blk_mig_active(void);
  19 uint64_t blk_mig_bytes_transferred(void);
  20 uint64_t blk_mig_bytes_remaining(void);
  21 uint64_t blk_mig_bytes_total(void);
  22
  23 #else
  24 static inline int blk_mig_active(void)
  25 {
  26     return false;
  27 }
  28 static inline uint64_t blk_mig_bytes_transferred(void)
  29 {
  30     return 0;
  31 }
  32
  33 static inline uint64_t blk_mig_bytes_remaining(void)
  34 {
  35     return 0;
  36 }
  37
  38 static inline uint64_t blk_mig_bytes_total(void)
  39 {
  40     return 0;
  41 }
  42 #endif /* CONFIG_LIVE_BLOCK_MIGRATION */
  43
  44 void migrate_set_block_enabled(bool value, Error **errp);
  45 #endif /* MIGRATION_BLOCK_H */