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-rw-r--r--replay/replay-snapshot.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/replay/replay-snapshot.c b/replay/replay-snapshot.c
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+++ b/replay/replay-snapshot.c
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+/*
+ * replay-snapshot.c
+ *
+ * Copyright (c) 2010-2016 Institute for System Programming
+ * of the Russian Academy of Sciences.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "sysemu/replay.h"
+#include "replay-internal.h"
+#include "sysemu/sysemu.h"
+#include "monitor/monitor.h"
+#include "qapi/qmp/qstring.h"
+#include "qemu/error-report.h"
+#include "migration/vmstate.h"
+
+static void replay_pre_save(void *opaque)
+{
+ ReplayState *state = opaque;
+ state->file_offset = ftell(replay_file);
+}
+
+static int replay_post_load(void *opaque, int version_id)
+{
+ ReplayState *state = opaque;
+ fseek(replay_file, state->file_offset, SEEK_SET);
+ /* If this was a vmstate, saved in recording mode,
+ we need to initialize replay data fields. */
+ replay_fetch_data_kind();
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_replay = {
+ .name = "replay",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .pre_save = replay_pre_save,
+ .post_load = replay_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT64_ARRAY(cached_clock, ReplayState, REPLAY_CLOCK_COUNT),
+ VMSTATE_UINT64(current_step, ReplayState),
+ VMSTATE_INT32(instructions_count, ReplayState),
+ VMSTATE_UINT32(data_kind, ReplayState),
+ VMSTATE_UINT32(has_unread_data, ReplayState),
+ VMSTATE_UINT64(file_offset, ReplayState),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
+void replay_vmstate_register(void)
+{
+ vmstate_register(NULL, 0, &vmstate_replay, &replay_state);
+}