LCOV - code coverage report
Current view: top level - include/hpactor/sched - dedicated_thread_pool.hpp (source / functions) Coverage Total Hit
Test: HPActor Coverage Lines: 100.0 % 2 2
Test Date: 2026-05-20 02:24:49 Functions: 100.0 % 1 1
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: - 0 0

             Branch data     Line data    Source code
       1                 :             : // Copyright 2026 HPActor Contributors
       2                 :             : //
       3                 :             : // Licensed under the Apache License, Version 2.0 (the "License");
       4                 :             : // you may not use this file except in compliance with the License.
       5                 :             : // You may obtain a copy of the License at
       6                 :             : //
       7                 :             : //     http://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,
      11                 :             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12                 :             : // See the License for the specific language governing permissions and
      13                 :             : // limitations under the License.
      14                 :             : 
      15                 :             : #pragma once
      16                 :             : 
      17                 :             : #include <hpactor/types/types.hpp>
      18                 :             : 
      19                 :             : #include <atomic>
      20                 :             : #include <functional>
      21                 :             : #include <memory>
      22                 :             : #include <mutex>
      23                 :             : #include <thread>
      24                 :             : #include <vector>
      25                 :             : 
      26                 :             : namespace hpactor::sched {
      27                 :             : 
      28                 :             : class DedicatedThreadPool {
      29                 :             :   public:
      30                 :             :     using WorkFn = std::function<void()>;
      31                 :             : 
      32                 :             :     explicit DedicatedThreadPool(uint32_t num_threads);
      33                 :             :     ~DedicatedThreadPool();
      34                 :             : 
      35                 :             :     DedicatedThreadPool(const DedicatedThreadPool&) = delete;
      36                 :             :     DedicatedThreadPool& operator=(const DedicatedThreadPool&) = delete;
      37                 :             :     DedicatedThreadPool(DedicatedThreadPool&&) = delete;
      38                 :             :     DedicatedThreadPool& operator=(DedicatedThreadPool&&) = delete;
      39                 :             : 
      40                 :             :     void start();
      41                 :             :     void stop();
      42                 :             : 
      43                 :             :     // Thread-safe: enqueue work for an actor.
      44                 :             :     // Work is distributed round-robin across pool workers.
      45                 :             :     void enqueue(ActorId actor, WorkFn work);
      46                 :             : 
      47                 :           3 :     bool is_running() const {
      48                 :           3 :         return running_.load(std::memory_order_acquire);
      49                 :             :     }
      50                 :             : 
      51                 :             :     size_t pending() const;
      52                 :             : 
      53                 :             :     uint32_t num_threads() const {
      54                 :             :         return num_threads_;
      55                 :             :     }
      56                 :             : 
      57                 :             :   private:
      58                 :             :     void worker_loop(uint32_t worker_id);
      59                 :             : 
      60                 :             :     struct WorkerState {
      61                 :             :         std::mutex mutex;
      62                 :             :         std::vector<WorkFn> queue;
      63                 :             :     };
      64                 :             : 
      65                 :             :     uint32_t num_threads_;
      66                 :             :     std::vector<std::thread> threads_;
      67                 :             :     std::vector<std::unique_ptr<WorkerState>> workers_;
      68                 :             :     std::atomic<bool> running_{false};
      69                 :             :     std::atomic<uint32_t> next_worker_{0};
      70                 :             : };
      71                 :             : 
      72                 :             : } // namespace hpactor::sched
        

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