xref: /qemu/trace/control-internal.h (revision 89aafcf2)
1 /*
2  * Interface for configuring and controlling the state of tracing events.
3  *
4  * Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
5  *
6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
7  * See the COPYING file in the top-level directory.
8  */
9 
10 #ifndef TRACE__CONTROL_INTERNAL_H
11 #define TRACE__CONTROL_INTERNAL_H
12 
13 extern int trace_events_enabled_count;
14 
15 
trace_event_is_pattern(const char * str)16 static inline bool trace_event_is_pattern(const char *str)
17 {
18     assert(str != NULL);
19     return strchr(str, '*') != NULL;
20 }
21 
trace_event_get_id(TraceEvent * ev)22 static inline uint32_t trace_event_get_id(TraceEvent *ev)
23 {
24     assert(ev != NULL);
25     return ev->id;
26 }
27 
trace_event_get_name(TraceEvent * ev)28 static inline const char * trace_event_get_name(TraceEvent *ev)
29 {
30     assert(ev != NULL);
31     return ev->name;
32 }
33 
trace_event_get_state_static(TraceEvent * ev)34 static inline bool trace_event_get_state_static(TraceEvent *ev)
35 {
36     assert(ev != NULL);
37     return ev->sstate;
38 }
39 
40 /* it's on fast path, avoid consistency checks (asserts) */
41 #define trace_event_get_state_dynamic_by_id(id) \
42     (unlikely(trace_events_enabled_count) && _ ## id ## _DSTATE)
43 
trace_event_get_state_dynamic(TraceEvent * ev)44 static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
45 {
46     return unlikely(trace_events_enabled_count) && *ev->dstate;
47 }
48 
49 void trace_event_register_group(TraceEvent **events);
50 
51 #endif /* TRACE__CONTROL_INTERNAL_H */
52