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3rdparty/spdlog-1.9.2/include/spdlog/details/periodic_worker-inl.h 1.21 KB
3d2ab595   Hu Chunming   支持gb28181
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  // Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
  // Distributed under the MIT License (http://opensource.org/licenses/MIT)
  
  #pragma once
  
  #ifndef SPDLOG_HEADER_ONLY
  #    include <spdlog/details/periodic_worker.h>
  #endif
  
  namespace spdlog {
  namespace details {
  
  SPDLOG_INLINE periodic_worker::periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
  {
      active_ = (interval > std::chrono::seconds::zero());
      if (!active_)
      {
          return;
      }
  
      worker_thread_ = std::thread([this, callback_fun, interval]() {
          for (;;)
          {
              std::unique_lock<std::mutex> lock(this->mutex_);
              if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
              {
                  return; // active_ == false, so exit this thread
              }
              callback_fun();
          }
      });
  }
  
  // stop the worker thread and join it
  SPDLOG_INLINE periodic_worker::~periodic_worker()
  {
      if (worker_thread_.joinable())
      {
          {
              std::lock_guard<std::mutex> lock(mutex_);
              active_ = false;
          }
          cv_.notify_one();
          worker_thread_.join();
      }
  }
  
  } // namespace details
  } // namespace spdlog