1 // Copyright 2021 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 //     https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14 #pragma once
15 
16 #include "RTOS.h"
17 
18 namespace pw::thread::backend {
19 
20 // Instead of using a pw::thread::embos specific identifier, the ThreadX
21 // thread pointer is used as this means pw::this_thread::id works correctly on
22 // threads started with the native ThreadX APIs as well as those started
23 // using the pw::thread APIs.
24 class NativeId {
25  public:
task_ptr_(task_ptr)26   constexpr NativeId(OS_TASK* task_ptr = nullptr) : task_ptr_(task_ptr) {}
27 
28   constexpr bool operator==(NativeId other) const {
29     return task_ptr_ == other.task_ptr_;
30   }
31   constexpr bool operator!=(NativeId other) const {
32     return task_ptr_ != other.task_ptr_;
33   }
34   constexpr bool operator<(NativeId other) const {
35     return task_ptr_ < other.task_ptr_;
36   }
37   constexpr bool operator<=(NativeId other) const {
38     return task_ptr_ <= other.task_ptr_;
39   }
40   constexpr bool operator>(NativeId other) const {
41     return task_ptr_ > other.task_ptr_;
42   }
43   constexpr bool operator>=(NativeId other) const {
44     return task_ptr_ >= other.task_ptr_;
45   }
46 
47  private:
48   OS_TASK* task_ptr_;
49 };
50 
51 }  // namespace pw::thread::backend
52