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Diffstat (limited to 'trace/control.h')
| -rw-r--r-- | trace/control.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/trace/control.h b/trace/control.h new file mode 100644 index 0000000000..2acaa4290e --- /dev/null +++ b/trace/control.h @@ -0,0 +1,41 @@ +/* + * 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 */ |