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replay: introduce icount event

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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>
This commit is contained in:
Pavel Dovgalyuk 2015-09-17 19:23:54 +03:00 • committed by Paolo Bonzini
parent c16861ef1b
commit 26bc60ac82
4 changed files with 85 additions and 0 deletions
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21
replay/replay-internal.h
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@ -14,6 +14,20 @@
#include <stdio.h>
enum ReplayEvents {
/* for instruction event */
EVENT_INSTRUCTION,
EVENT_COUNT
};
typedef struct ReplayState {
/*! Current step - number of processed instructions and timer events. */
uint64_t current_step;
/*! Number of instructions to be executed before other events happen. */
int instructions_count;
} ReplayState;
extern ReplayState replay_state;
extern unsigned int replay_data_kind;
/* File for replay writing */
@ -50,4 +64,11 @@ void replay_finish_event(void);
replay_data_kind variable. */
void replay_fetch_data_kind(void);
/*! Saves queued events (like instructions and sound). */
void replay_save_instructions(void);
/*! Skips async events until some sync event will be found.
\return true, if event was found */
bool replay_next_event_is(int event);
#endif