| // Copyright 2021 The Pigweed Authors |
| // |
| // 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 |
| // |
| // https://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. |
| #pragma once |
| |
| #include "FreeRTOS.h" |
| #include "pw_polyfill/language_feature_macros.h" |
| #include "pw_sync/interrupt_spin_lock.h" |
| #include "pw_sync/lock_annotations.h" |
| #include "task.h" |
| |
| namespace pw::sync::backend { |
| |
| struct NativeThreadNotification { |
| TaskHandle_t blocked_thread PW_GUARDED_BY(shared_spin_lock); |
| bool notified PW_GUARDED_BY(shared_spin_lock); |
| // We use a global ISL for all thread notifications because these backends |
| // only support uniprocessor targets and ergo we reduce the memory cost for |
| // all ISL instances without any risk of spin contention between different |
| // instances. |
| PW_CONSTINIT inline static InterruptSpinLock shared_spin_lock = {}; |
| }; |
| using NativeThreadNotificationHandle = NativeThreadNotification&; |
| |
| } // namespace pw::sync::backend |
