qapi/replay.json

   1 # -*- Mode: Python -*-
   2 # vim: filetype=python
   3 #
   4
   5 ##
   6 # = Record/replay
   7 ##
   8
   9 { 'include': 'common.json' }
  10
  11 ##
  12 # @ReplayMode:
  13 #
  14 # Mode of the replay subsystem.
  15 #
  16 # @none: normal execution mode.  Replay or record are not enabled.
  17 #
  18 # @record: record mode.  All non-deterministic data is written into
  19 #     the replay log.
  20 #
  21 # @play: replay mode.  Non-deterministic data required for system
  22 #     execution is read from the log.
  23 #
  24 # Since: 2.5
  25 ##
  26 { 'enum': 'ReplayMode',
  27   'data': [ 'none', 'record', 'play' ] }
  28
  29 ##
  30 # @ReplayInfo:
  31 #
  32 # Record/replay information.
  33 #
  34 # @mode: current mode.
  35 #
  36 # @filename: name of the record/replay log file.  It is present only
  37 #     in record or replay modes, when the log is recorded or replayed.
  38 #
  39 # @icount: current number of executed instructions.
  40 #
  41 # Since: 5.2
  42 ##
  43 { 'struct': 'ReplayInfo',
  44   'data': { 'mode': 'ReplayMode', '*filename': 'str', 'icount': 'int' } }
  45
  46 ##
  47 # @query-replay:
  48 #
  49 # Retrieve the record/replay information.  It includes current
  50 # instruction count which may be used for @replay-break and
  51 # @replay-seek commands.
  52 #
  53 # Returns: record/replay information.
  54 #
  55 # Since: 5.2
  56 #
  57 # Example:
  58 #
  59 # -> { "execute": "query-replay" }
  60 # <- { "return": { "mode": "play", "filename": "log.rr", "icount": 220414 } }
  61 ##
  62 { 'command': 'query-replay',
  63   'returns': 'ReplayInfo' }
  64
  65 ##
  66 # @replay-break:
  67 #
  68 # Set replay breakpoint at instruction count @icount.  Execution stops
  69 # when the specified instruction is reached.  There can be at most one
  70 # breakpoint.  When breakpoint is set, any prior one is removed.  The
  71 # breakpoint may be set only in replay mode and only "in the future",
  72 # i.e. at instruction counts greater than the current one.  The
  73 # current instruction count can be observed with @query-replay.
  74 #
  75 # @icount: instruction count to stop at
  76 #
  77 # Since: 5.2
  78 #
  79 # Example:
  80 #
  81 # -> { "execute": "replay-break", "arguments": { "icount": 220414 } }
  82 # <- { "return": {} }
  83 ##
  84 { 'command': 'replay-break', 'data': { 'icount': 'int' } }
  85
  86 ##
  87 # @replay-delete-break:
  88 #
  89 # Remove replay breakpoint which was set with @replay-break.  The
  90 # command is ignored when there are no replay breakpoints.
  91 #
  92 # Since: 5.2
  93 #
  94 # Example:
  95 #
  96 # -> { "execute": "replay-delete-break" }
  97 # <- { "return": {} }
  98 ##
  99 { 'command': 'replay-delete-break' }
 100
 101 ##
 102 # @replay-seek:
 103 #
 104 # Automatically proceed to the instruction count @icount, when
 105 # replaying the execution.  The command automatically loads nearest
 106 # snapshot and replays the execution to find the desired instruction.
 107 # When there is no preceding snapshot or the execution is not
 108 # replayed, then the command fails.  icount for the reference may be
 109 # obtained with @query-replay command.
 110 #
 111 # @icount: target instruction count
 112 #
 113 # Since: 5.2
 114 #
 115 # Example:
 116 #
 117 # -> { "execute": "replay-seek", "arguments": { "icount": 220414 } }
 118 # <- { "return": {} }
 119 ##
 120 { 'command': 'replay-seek', 'data': { 'icount': 'int' } }