1/* 2 * Interface for configuring and controlling the state of tracing events. 3 * 4 * Copyright (C) 2011-2014 LluĂs 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 14 15extern TraceEvent trace_events[]; 16extern bool trace_events_dstate[]; 17extern int trace_events_enabled_count; 18 19 20static inline TraceEventID trace_event_count(void) 21{ 22 return TRACE_EVENT_COUNT; 23} 24 25static inline TraceEvent *trace_event_id(TraceEventID id) 26{ 27 assert(id < trace_event_count()); 28 return &trace_events[id]; 29} 30 31static inline bool trace_event_is_pattern(const char *str) 32{ 33 assert(str != NULL); 34 return strchr(str, '*') != NULL; 35} 36 37static inline TraceEventID trace_event_get_id(TraceEvent *ev) 38{ 39 assert(ev != NULL); 40 return ev->id; 41} 42 43static inline const char * trace_event_get_name(TraceEvent *ev) 44{ 45 assert(ev != NULL); 46 return ev->name; 47} 48 49static inline bool trace_event_get_state_static(TraceEvent *ev) 50{ 51 assert(ev != NULL); 52 return ev->sstate; 53} 54 55static inline bool trace_event_get_state_dynamic_by_id(int id) 56{ 57 return unlikely(trace_events_enabled_count) && trace_events_dstate[id]; 58} 59 60static inline bool trace_event_get_state_dynamic(TraceEvent *ev) 61{ 62 int id = trace_event_get_id(ev); 63 return trace_event_get_state_dynamic_by_id(id); 64} 65 66static inline void trace_event_set_state_dynamic(TraceEvent *ev, bool state) 67{ 68 int id = trace_event_get_id(ev); 69 assert(ev != NULL); 70 assert(trace_event_get_state_static(ev)); 71 trace_events_enabled_count += state - trace_events_dstate[id]; 72 trace_events_dstate[id] = state; 73} 74 75#endif /* TRACE__CONTROL_INTERNAL_H */ 76