[mirror_qemu.git] / trace / control.h

/*
 * Interface for configuring and controlling the state of tracing events.
 *
 * Copyright (C) 2011 Lluís Vilanova <vilanova@ac.upc.edu>
 *
 * This work is licensed under the terms of the GNU GPL, version 2.  See
 * the COPYING file in the top-level directory.
 */

#ifndef TRACE_CONTROL_H
#define TRACE_CONTROL_H

#include "qemu-common.h"


/** Print the state of all events. */
void trace_print_events(FILE *stream, fprintf_function stream_printf);
/** Set the state of an event.
 *
 * @return Whether the state changed.
 */
bool trace_event_set_state(const char *name, bool state);


/** Initialize the tracing backend.
 *
 * @file Name of trace output file; may be NULL.
 *       Corresponds to commandline option "-trace file=...".
 * @return Whether the backend could be successfully initialized.
 */
bool trace_backend_init(const char *file);

#endif  /* TRACE_CONTROL_H */
Commit	Line	Data
e4858974 LV	1	/*
	2	* Interface for configuring and controlling the state of tracing events.
	3	*
	4	* Copyright (C) 2011 Lluís Vilanova <vilanova@ac.upc.edu>
	5	*
	6	* This work is licensed under the terms of the GNU GPL, version 2. See
	7	* the COPYING file in the top-level directory.
	8	*/
	9
	10	#ifndef TRACE_CONTROL_H
	11	#define TRACE_CONTROL_H
	12
fc764105 LV	13	#include "qemu-common.h"
	14
	15
	16	/** Print the state of all events. */
	17	void trace_print_events(FILE *stream, fprintf_function stream_printf);
	18	/** Set the state of an event.
	19	*
	20	* @return Whether the state changed.
	21	*/
	22	bool trace_event_set_state(const char *name, bool state);
e4858974 LV	23
	24
	25	/** Initialize the tracing backend.
	26	*
	27	* @file Name of trace output file; may be NULL.
	28	* Corresponds to commandline option "-trace file=...".
	29	* @return Whether the backend could be successfully initialized.
	30	*/
	31	bool trace_backend_init(const char *file);
	32
	33	#endif /* TRACE_CONTROL_H */