The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/utils/SkEventTracer.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,60 @@
     1.4 +/*
     1.5 + * Copyright 2014 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "SkEventTracer.h"
    1.12 +#include "SkOnce.h"
    1.13 +
    1.14 +class SkDefaultEventTracer: public SkEventTracer {
    1.15 +    virtual SkEventTracer::Handle
    1.16 +        addTraceEvent(char phase,
    1.17 +                      const uint8_t* categoryEnabledFlag,
    1.18 +                      const char* name,
    1.19 +                      uint64_t id,
    1.20 +                      int numArgs,
    1.21 +                      const char** argNames,
    1.22 +                      const uint8_t* argTypes,
    1.23 +                      const uint64_t* argValues,
    1.24 +                      uint8_t flags) SK_OVERRIDE { return 0; }
    1.25 +
    1.26 +    virtual void
    1.27 +        updateTraceEventDuration(const uint8_t* categoryEnabledFlag,
    1.28 +                                 const char* name,
    1.29 +                                 SkEventTracer::Handle handle) SK_OVERRIDE {};
    1.30 +
    1.31 +    virtual const uint8_t* getCategoryGroupEnabled(const char* name) SK_OVERRIDE {
    1.32 +        static uint8_t no = 0;
    1.33 +        return &no;
    1.34 +    };
    1.35 +    virtual const char* getCategoryGroupName(
    1.36 +      const uint8_t* categoryEnabledFlag) SK_OVERRIDE {
    1.37 +        static const char* dummy = "dummy";
    1.38 +        return dummy;
    1.39 +    };
    1.40 +};
    1.41 +
    1.42 +SkEventTracer *SkEventTracer::gInstance;
    1.43 +
    1.44 +static void intialiize_default_tracer(void *current_instance) {
    1.45 +    if (NULL == current_instance) {
    1.46 +        SkEventTracer::SetInstance(SkNEW(SkDefaultEventTracer));
    1.47 +    }
    1.48 +}
    1.49 +
    1.50 +static void cleanup_tracer() {
    1.51 +    // calling SetInstance will delete the existing instance.
    1.52 +    SkEventTracer::SetInstance(NULL);
    1.53 +}
    1.54 +
    1.55 +SkEventTracer* SkEventTracer::GetInstance() {
    1.56 +    SK_DECLARE_STATIC_ONCE(once);
    1.57 +    SkOnce(&once,
    1.58 +           intialiize_default_tracer,
    1.59 +           SkEventTracer::gInstance,
    1.60 +           cleanup_tracer);
    1.61 +    SkASSERT(NULL != SkEventTracer::gInstance);
    1.62 +    return SkEventTracer::gInstance;
    1.63 +}