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- /*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "src/core/SkATrace.h"
- #include "src/core/SkTraceEvent.h"
- #include "src/core/SkTraceEventCommon.h"
- #ifdef SK_BUILD_FOR_ANDROID
- #include <dlfcn.h>
- #endif
- SkATrace::SkATrace() : fBeginSection(nullptr), fEndSection(nullptr), fIsEnabled(nullptr) {
- #if defined(SK_BUILD_FOR_ANDROID_FRAMEWORK)
- fIsEnabled = []{ return static_cast<bool>(CC_UNLIKELY(ATRACE_ENABLED())); };
- fBeginSection = [](const char* name){ ATRACE_BEGIN(name); };
- fEndSection = []{ ATRACE_END(); };
- #elif defined(SK_BUILD_FOR_ANDROID)
- if (void* lib = dlopen("libandroid.so", RTLD_NOW | RTLD_LOCAL)) {
- fBeginSection = (decltype(fBeginSection))dlsym(lib, "ATrace_beginSection");
- fEndSection = (decltype(fEndSection))dlsym(lib, "ATrace_endSection");
- fIsEnabled = (decltype(fIsEnabled))dlsym(lib, "ATrace_isEnabled");
- }
- #endif
- if (!fIsEnabled) {
- fIsEnabled = []{ return false; };
- }
- }
- SkEventTracer::Handle SkATrace::addTraceEvent(char phase,
- const uint8_t* categoryEnabledFlag,
- const char* name,
- uint64_t id,
- int numArgs,
- const char** argNames,
- const uint8_t* argTypes,
- const uint64_t* argValues,
- uint8_t flags) {
- if (fIsEnabled()) {
- if (TRACE_EVENT_PHASE_COMPLETE == phase ||
- TRACE_EVENT_PHASE_INSTANT == phase) {
- fBeginSection(name);
- }
- if (TRACE_EVENT_PHASE_INSTANT == phase) {
- fEndSection();
- }
- }
- return 0;
- }
- void SkATrace::updateTraceEventDuration(const uint8_t* categoryEnabledFlag,
- const char* name,
- SkEventTracer::Handle handle) {
- // This is only ever called from a scoped trace event so we will just end the ATrace section.
- if (fIsEnabled()) {
- fEndSection();
- }
- }
- const uint8_t* SkATrace::getCategoryGroupEnabled(const char* name) {
- // Chrome tracing is setup to not repeatly call this function once it has been initialized. So
- // we can't use this to do a check for ATrace isEnabled(). Thus we will always return yes here
- // and then check to see if ATrace is enabled when beginning and ending a section.
- static uint8_t yes = SkEventTracer::kEnabledForRecording_CategoryGroupEnabledFlags;
- return &yes;
- }
- #ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
- bool SkAndroidFrameworkTraceUtil::gEnableAndroidTracing = false;
- #endif //SK_BUILD_FOR_ANDROID_FRAMEWORK
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