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Annotation of qemu/trace/control.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Interface for configuring and controlling the state of tracing events.
                      3:  *
                      4:  * Copyright (C) 2011 Lluís Vilanova <[email protected]>
                      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: 
                     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);
                     23: 
                     24: 
                     25: /** Initialize the tracing backend.
                     26:  *
                     27:  * @events Name of file with events to be enabled at startup; may be NULL.
                     28:  *         Corresponds to commandline option "-trace events=...".
                     29:  * @file   Name of trace output file; may be NULL.
                     30:  *         Corresponds to commandline option "-trace file=...".
                     31:  * @return Whether the backend could be successfully initialized.
                     32:  */
                     33: bool trace_backend_init(const char *events, const char *file);
                     34: 
                     35: /** Generic function to initialize the state of events.
                     36:  *
                     37:  * @fname Name of file with events to enable; may be NULL.
                     38:  */
                     39: void trace_backend_init_events(const char *fname);
                     40: 
                     41: #endif  /* TRACE_CONTROL_H */

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