#ifndef REPLAY_H
#define REPLAY_H

/*
 * replay.h
 *
 * Copyright (c) 2010-2015 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 <stdbool.h>
#include <stdint.h>
#include "qapi-types.h"

extern ReplayMode replay_mode;

/* Processing the instructions */

/*! Returns number of executed instructions. */
uint64_t replay_get_current_step(void);
/*! Returns number of instructions to execute in replay mode. */
int replay_get_instructions(void);
/*! Updates instructions counter in replay mode. */
void replay_account_executed_instructions(void);

/* Interrupts and exceptions */

/*! Called by exception handler to write or read
    exception processing events. */
bool replay_exception(void);
/*! Used to determine that exception is pending.
    Does not proceed to the next event in the log. */
bool replay_has_exception(void);
/*! Called by interrupt handlers to write or read
    interrupt processing events.
    \return true if interrupt should be processed */
bool replay_interrupt(void);
/*! Tries to read interrupt event from the file.
    Returns true, when interrupt request is pending */
bool replay_has_interrupt(void);

/* Asynchronous events queue */

/*! Disables storing events in the queue */
void replay_disable_events(void);
/*! Returns true when saving events is enabled */
bool replay_events_enabled(void);

#endif