| /* |
| * Copyright (C) 2019 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 "perfetto/tracing/track_event_category_registry.h" |
| |
| namespace perfetto { |
| namespace internal { |
| |
| const TrackEventCategory* TrackEventCategoryRegistry::GetCategory( |
| size_t index) const { |
| PERFETTO_DCHECK(index < category_count_); |
| return &categories_[index]; |
| } |
| |
| void TrackEventCategoryRegistry::EnableCategoryForInstance( |
| size_t category_index, |
| uint32_t instance_index) const { |
| PERFETTO_DCHECK(instance_index < kMaxDataSourceInstances); |
| PERFETTO_DCHECK(category_index < category_count_); |
| // Matches the acquire_load in DataSource::Trace(). |
| state_storage_[category_index].fetch_or( |
| static_cast<uint8_t>(1u << instance_index), std::memory_order_release); |
| } |
| |
| void TrackEventCategoryRegistry::DisableCategoryForInstance( |
| size_t category_index, |
| uint32_t instance_index) const { |
| PERFETTO_DCHECK(instance_index < kMaxDataSourceInstances); |
| PERFETTO_DCHECK(category_index < category_count_); |
| // Matches the acquire_load in DataSource::Trace(). |
| state_storage_[category_index].fetch_and( |
| static_cast<uint8_t>(~(1u << instance_index)), std::memory_order_release); |
| } |
| |
| } // namespace internal |
| } // namespace perfetto |