mirror of https://gitee.com/openkylin/qemu.git
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* Interface for configuring and controlling the state of tracing events.
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*
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* Copyright (C) 2011 Lluís Vilanova <vilanova@ac.upc.edu>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef TRACE_CONTROL_H
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#define TRACE_CONTROL_H
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#include "qemu-common.h"
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/** Print the state of all events. */
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void trace_print_events(FILE *stream, fprintf_function stream_printf);
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/** Set the state of an event.
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*
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* @return Whether the state changed.
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*/
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bool trace_event_set_state(const char *name, bool state);
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/** Initialize the tracing backend.
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*
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* @events Name of file with events to be enabled at startup; may be NULL.
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* Corresponds to commandline option "-trace events=...".
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* @file Name of trace output file; may be NULL.
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* Corresponds to commandline option "-trace file=...".
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* @return Whether the backend could be successfully initialized.
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*/
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bool trace_backend_init(const char *events, const char *file);
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/** Generic function to initialize the state of events.
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*
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* @fname Name of file with events to enable; may be NULL.
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*/
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void trace_backend_init_events(const char *fname);
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#endif /* TRACE_CONTROL_H */
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