LXR qemu/trace/control-internal.h

   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
  13extern int trace_events_enabled_count;
  14
  15
  16static inline bool trace_event_is_pattern(const char *str)
  17{
  18    assert(str != NULL);
  19    return strchr(str, '*') != NULL;
  20}
  21
  22static inline uint32_t trace_event_get_id(TraceEvent *ev)
  23{
  24    assert(ev != NULL);
  25    return ev->id;
  26}
  27
  28static inline uint32_t trace_event_get_vcpu_id(TraceEvent *ev)
  29{
  30    return ev->vcpu_id;
  31}
  32
  33static inline bool trace_event_is_vcpu(TraceEvent *ev)
  34{
  35    return ev->vcpu_id != TRACE_VCPU_EVENT_NONE;
  36}
  37
  38static inline const char * trace_event_get_name(TraceEvent *ev)
  39{
  40    assert(ev != NULL);
  41    return ev->name;
  42}
  43
  44static inline bool trace_event_get_state_static(TraceEvent *ev)
  45{
  46    assert(ev != NULL);
  47    return ev->sstate;
  48}
  49
  50/* it's on fast path, avoid consistency checks (asserts) */
  51#define trace_event_get_state_dynamic_by_id(id) \
  52    (unlikely(trace_events_enabled_count) && _ ## id ## _DSTATE)
  53
  54static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
  55{
  56    return unlikely(trace_events_enabled_count) && *ev->dstate;
  57}
  58
  59void trace_event_register_group(TraceEvent **events);
  60
  61#endif /* TRACE__CONTROL_INTERNAL_H */
  62