| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "prong.h" |
| |
| #define LOG_TAG "TuningFork" |
| #include "Log.h" |
| |
| #include <string> |
| #include <sstream> |
| |
| namespace tuningfork { |
| |
| Prong::Prong(InstrumentationKey instrumentation_key, |
| const SerializedAnnotation &annotation, |
| const TFHistogram& histogram_settings, |
| bool loading) |
| : instrumentation_key_(instrumentation_key), annotation_(annotation), |
| histogram_(histogram_settings, loading), |
| last_time_(TimePoint::min()), |
| duration_(Duration::zero()), |
| loading_(loading) {} |
| |
| void Prong::Tick(TimePoint t) { |
| if (last_time_ != std::chrono::steady_clock::time_point::min()) |
| Trace(t - last_time_); |
| last_time_ = t; |
| } |
| |
| void Prong::Trace(Duration dt) { |
| // The histogram stores millisecond values as doubles |
| histogram_.Add( |
| double(std::chrono::duration_cast<std::chrono::nanoseconds>(dt).count()) / 1000000); |
| duration_ += dt; |
| } |
| |
| void Prong::Clear() { |
| last_time_ = std::chrono::steady_clock::time_point::min(); |
| histogram_.Clear(); |
| } |
| |
| size_t Prong::Count() const { |
| return histogram_.Count(); |
| } |
| |
| void Prong::SetInstrumentKey(InstrumentationKey key) { |
| instrumentation_key_ = key; |
| } |
| |
| // Allocate all the prongs up front |
| ProngCache::ProngCache(size_t size, int max_num_instrumentation_keys, |
| const std::vector<TFHistogram> &histogram_settings, |
| const std::function<SerializedAnnotation(uint64_t)> &seralizeId, |
| const std::function<bool(uint64_t)>& is_loading_id) |
| : prongs_(size), max_num_instrumentation_keys_(max_num_instrumentation_keys) { |
| // Allocate all the prongs |
| InstrumentationKey ikey = 0; |
| for (int i = 0; i < size; ++i) { |
| auto &p = prongs_[i]; |
| SerializedAnnotation annotation = seralizeId(i); |
| if (is_loading_id(i)) { |
| if (ikey == 0) { |
| // Use the default, auto-sizing histogram for loading times |
| p = std::make_unique<Prong>(ikey, annotation, TFHistogram{}, true); |
| } |
| } |
| else { |
| auto& h = histogram_settings[ikey<histogram_settings.size()?ikey:0]; |
| p = std::make_unique<Prong>(ikey, annotation, h); |
| } |
| ++ikey; |
| if (ikey >= max_num_instrumentation_keys) |
| ikey = 0; |
| } |
| } |
| |
| Prong *ProngCache::Get(uint64_t compound_id) const { |
| if (compound_id >= prongs_.size()) { |
| ALOGW("You have overrun the number of histograms (are your " |
| "Settings correct?)"); |
| return nullptr; |
| } |
| return prongs_[compound_id].get(); |
| } |
| |
| void ProngCache::Clear() { |
| for (auto &p: prongs_) { |
| if (p.get() != nullptr) |
| p->Clear(); |
| } |
| time_.start = SystemTimePoint(); |
| time_.end = SystemTimePoint(); |
| } |
| |
| void ProngCache::SetInstrumentKeys(const std::vector<InstrumentationKey>& instrument_keys) { |
| auto nAnnotations = prongs_.size()/max_num_instrumentation_keys_; |
| for (int j=0; j<nAnnotations; ++j) { |
| for (int i=0; i<instrument_keys.size(); ++i) { |
| auto k = instrument_keys[i]; |
| auto& p = prongs_[i + j*max_num_instrumentation_keys_]; |
| if (p.get() != nullptr) |
| p->SetInstrumentKey(k); |
| } |
| } |
| } |
| |
| void ProngCache::Ping(std::chrono::system_clock::time_point t) { |
| if(time_.start==std::chrono::system_clock::time_point()) { |
| time_.start = t; |
| } |
| time_.end = t; |
| } |
| |
| } |