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use context from node_base_ for clock executor. #1617

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Apr 2, 2021
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2 changes: 1 addition & 1 deletion rclcpp/include/rclcpp/time_source.hpp
Original file line number Diff line number Diff line change
Expand Up @@ -152,7 +152,7 @@ class TimeSource
std::shared_ptr<SubscriptionT> clock_subscription_{nullptr};
std::mutex clock_sub_lock_;
rclcpp::CallbackGroup::SharedPtr clock_callback_group_;
rclcpp::executors::SingleThreadedExecutor clock_executor_;
rclcpp::executors::SingleThreadedExecutor::SharedPtr clock_executor_;
std::promise<void> cancel_clock_executor_promise_;

// The clock callback itself
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12 changes: 8 additions & 4 deletions rclcpp/src/rclcpp/time_source.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -256,13 +256,17 @@ void TimeSource::create_clock_sub()
false
);
options.callback_group = clock_callback_group_;
rclcpp::ExecutorOptions exec_options;
exec_options.context = node_base_->get_context();
clock_executor_ =
std::make_shared<rclcpp::executors::SingleThreadedExecutor>(exec_options);
if (!clock_executor_thread_.joinable()) {
clock_executor_thread_ = std::thread(
[this]() {
cancel_clock_executor_promise_ = std::promise<void>{};
auto future = cancel_clock_executor_promise_.get_future();
clock_executor_.add_callback_group(clock_callback_group_, node_base_);
clock_executor_.spin_until_future_complete(future);
clock_executor_->add_callback_group(clock_callback_group_, node_base_);
clock_executor_->spin_until_future_complete(future);
}
);
}
Expand All @@ -283,9 +287,9 @@ void TimeSource::destroy_clock_sub()
std::lock_guard<std::mutex> guard(clock_sub_lock_);
if (clock_executor_thread_.joinable()) {
cancel_clock_executor_promise_.set_value();
clock_executor_.cancel();
clock_executor_->cancel();
clock_executor_thread_.join();
clock_executor_.remove_callback_group(clock_callback_group_);
clock_executor_->remove_callback_group(clock_callback_group_);
}
clock_subscription_.reset();
}
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