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26bc60ac82
This patch adds icount event to the replay subsystem. This event corresponds to execution of several instructions and used to synchronize input events in the replay phase. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162354.8676.31351.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
75 lines
2 KiB
C
75 lines
2 KiB
C
#ifndef REPLAY_INTERNAL_H
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#define REPLAY_INTERNAL_H
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/*
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* replay-internal.h
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*
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* Copyright (c) 2010-2015 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 <stdio.h>
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enum ReplayEvents {
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/* for instruction event */
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EVENT_INSTRUCTION,
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EVENT_COUNT
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};
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typedef struct ReplayState {
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/*! Current step - number of processed instructions and timer events. */
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uint64_t current_step;
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/*! Number of instructions to be executed before other events happen. */
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int instructions_count;
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} ReplayState;
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extern ReplayState replay_state;
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extern unsigned int replay_data_kind;
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/* File for replay writing */
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extern FILE *replay_file;
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void replay_put_byte(uint8_t byte);
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void replay_put_event(uint8_t event);
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void replay_put_word(uint16_t word);
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void replay_put_dword(uint32_t dword);
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void replay_put_qword(int64_t qword);
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void replay_put_array(const uint8_t *buf, size_t size);
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uint8_t replay_get_byte(void);
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uint16_t replay_get_word(void);
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uint32_t replay_get_dword(void);
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int64_t replay_get_qword(void);
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void replay_get_array(uint8_t *buf, size_t *size);
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void replay_get_array_alloc(uint8_t **buf, size_t *size);
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/* Mutex functions for protecting replay log file */
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void replay_mutex_init(void);
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void replay_mutex_destroy(void);
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void replay_mutex_lock(void);
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void replay_mutex_unlock(void);
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/*! Checks error status of the file. */
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void replay_check_error(void);
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/*! Finishes processing of the replayed event and fetches
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the next event from the log. */
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void replay_finish_event(void);
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/*! Reads data type from the file and stores it in the
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replay_data_kind variable. */
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void replay_fetch_data_kind(void);
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/*! Saves queued events (like instructions and sound). */
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void replay_save_instructions(void);
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/*! Skips async events until some sync event will be found.
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\return true, if event was found */
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bool replay_next_event_is(int event);
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#endif
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