include/migration/snapshot.h

   1 /*
   2  * QEMU snapshots
   3  *
   4  * Copyright (c) 2004-2008 Fabrice Bellard
   5  * Copyright (c) 2009-2015 Red Hat Inc
   6  *
   7  * Authors:
   8  *  Juan Quintela <quintela@redhat.com>
   9  *
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12  * See the COPYING file in the top-level directory.
  13  */
  14
  15 #ifndef QEMU_MIGRATION_SNAPSHOT_H
  16 #define QEMU_MIGRATION_SNAPSHOT_H
  17
  18 #include "qapi/qapi-builtin-types.h"
  19
  20 /**
  21  * save_snapshot: Save an internal snapshot.
  22  * @name: name of internal snapshot
  23  * @overwrite: replace existing snapshot with @name
  24  * @vmstate: blockdev node name to store VM state in
  25  * @has_devices: whether to use explicit device list
  26  * @devices: explicit device list to snapshot
  27  * @errp: pointer to error object
  28  * On success, return %true.
  29  * On failure, store an error through @errp and return %false.
  30  */
  31 bool save_snapshot(const char *name, bool overwrite,
  32                    const char *vmstate,
  33                    bool has_devices, strList *devices,
  34                    Error **errp);
  35
  36 /**
  37  * load_snapshot: Load an internal snapshot.
  38  * @name: name of internal snapshot
  39  * @vmstate: blockdev node name to load VM state from
  40  * @has_devices: whether to use explicit device list
  41  * @devices: explicit device list to snapshot
  42  * @errp: pointer to error object
  43  * On success, return %true.
  44  * On failure, store an error through @errp and return %false.
  45  */
  46 bool load_snapshot(const char *name,
  47                    const char *vmstate,
  48                    bool has_devices, strList *devices,
  49                    Error **errp);
  50
  51 /**
  52  * delete_snapshot: Delete a snapshot.
  53  * @name: path to snapshot
  54  * @has_devices: whether to use explicit device list
  55  * @devices: explicit device list to snapshot
  56  * @errp: pointer to error object
  57  * On success, return %true.
  58  * On failure, store an error through @errp and return %false.
  59  */
  60 bool delete_snapshot(const char *name,
  61                     bool has_devices, strList *devices,
  62                     Error **errp);
  63
  64 #endif