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/*
* 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.
*
* @events Name of file with events to be enabled at startup; may be NULL.
* Corresponds to commandline option "-trace events=...".
* @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 *events, const char *file);
/** Generic function to initialize the state of events.
*
* @fname Name of file with events to enable; may be NULL.
*/
void trace_backend_init_events(const char *fname);
#endif /* TRACE_CONTROL_H */
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