2 * Copyright 2014 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #include "SkEventTracer.h"
11 class SkDefaultEventTracer: public SkEventTracer {
12 virtual SkEventTracer::Handle
13 addTraceEvent(char phase,
14 const uint8_t* categoryEnabledFlag,
18 const char** argNames,
19 const uint8_t* argTypes,
20 const uint64_t* argValues,
21 uint8_t flags) override { return 0; }
24 updateTraceEventDuration(const uint8_t* categoryEnabledFlag,
26 SkEventTracer::Handle handle) override {};
28 const uint8_t* getCategoryGroupEnabled(const char* name) override {
29 static uint8_t no = 0;
32 virtual const char* getCategoryGroupName(
33 const uint8_t* categoryEnabledFlag) override {
34 static const char* dummy = "dummy";
39 SkEventTracer* SkEventTracer::gInstance;
41 static void cleanup_tracer() {
42 // calling SetInstance will delete the existing instance.
43 SkEventTracer::SetInstance(NULL);
46 static void intialize_default_tracer(SkEventTracer* current_instance) {
47 if (NULL == current_instance) {
48 SkEventTracer::SetInstance(SkNEW(SkDefaultEventTracer));
50 atexit(cleanup_tracer);
54 SK_DECLARE_STATIC_ONCE(once);
55 SkEventTracer* SkEventTracer::GetInstance() {
56 SkOnce(&once, intialize_default_tracer, SkEventTracer::gInstance);
57 SkASSERT(SkEventTracer::gInstance);
58 return SkEventTracer::gInstance;