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45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
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/*
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* replay-random.c
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*
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* Copyright (c) 2010-2020 Institute for System Programming
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* of the Russian Academy of Sciences.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu/error-report.h"
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#include "sysemu/replay.h"
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#include "replay-internal.h"
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void replay_save_random(int ret, void *buf, size_t len)
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{
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g_assert(replay_mutex_locked());
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replay_save_instructions();
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replay_put_event(EVENT_RANDOM);
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replay_put_dword(ret);
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replay_put_array(buf, len);
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}
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int replay_read_random(void *buf, size_t len)
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{
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int ret = 0;
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g_assert(replay_mutex_locked());
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replay_account_executed_instructions();
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if (replay_next_event_is(EVENT_RANDOM)) {
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size_t buf_size = 0;
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ret = replay_get_dword();
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replay_get_array(buf, &buf_size);
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replay_finish_event();
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g_assert(buf_size == len);
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} else {
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error_report("Missing random event in the replay log");
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exit(1);
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}
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return ret;
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}
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