Questions tagged [asyncspinner]
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20 questions
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ROS: Further understanding the diffrence of MultiThreadedSpinner and AsyncSpinner
I have several years of experience with robot software development using ROS, especially ROS Noetic. I want to clarify my understanding about ...
- 13
2
votes
2
answers
1k
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spin_until_future_complete in an already spinning node
I’m making a program, this program has a rclcpp::node and is running with several threads. In the main thread I have
executor.add_node(node);
executor.spin();
this ...
- 21
0
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1
answer
559
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Do Timers run in different threads? [roscpp]
I'm wondering if I'm setting up different timers, do they run in different threads using roscpp? The background is that one Timer callback is taking a longer time to be executed and, therefore, I want ...
prex
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1
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30
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Does ros::shutdown() also stop all Async spinner threads?
This might be a very basic question but I couldn`t find an exact answer anywhere . Does the ros::shutdown() command also stop all the Async spinner threads automatically?
I have a lot of blocking ...
ashu
0
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1
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32
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AsyncSpinner and MoveIt!
Hello,
When I followed the tutorials of MoveIt!(C++), I found this line:
ros::AsyncSpinner spinner(1);
spinner.start();
I searched for it and know its ...
A_YIng
0
votes
1
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53
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Stopping std::threads in ROS
I am trying to stop two threads from within a while loop but it doesn't stop on the Ctrl+C (SIGINT).How do I terminate the threads on receiving Ctrl+C from CLI? Would an ...
curi_ROS
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1
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35
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How to decide the thread count for AsyncSpinner?
I am using AsyncSpinner on ROS Indigo to receive the data from multiple point cloud sensors simultaneously. Below is the same code:
...
- 1,446
0
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1
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36
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Nodes are takin 100% cpu on any computer
Hi,
I am using couple callback queues in my nodes with asyncSpinner. It does not matter on which computer I'm placing it (Odroid XU4, NUC) it does consume 100% CPU. Can anyone point o what I'm missing ...
matislovas
0
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1
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128
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ROS Threading, AsyncSpinners and Control
Hello everybody,
I am a relatively new ROS user (but I've spent years working with other middlewares), and up to now I am generally happy about it. I have a doubt related to my software framework I ...
alecive
0
votes
1
answer
23
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Subcriber callback's rate is lower then publisher's publish rate
Hi,
I've been working on the implementation of a EKF and have been running into a strange issue.
As some may be familiar the Kalman filter algorithm can be viewed as running two process. The Update ...
AlexandreB
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1
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166
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Does every ROS node need to spin()?
I have been using ROS for a short time now and learned about callbacks & spinning. My question is, since be default all callbacks are added to the global callback queue, does ros::spin() in node A ...
powerstorm42
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19
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multithread can't read 2 topics
I am trying to subscribe to multiple topics and then publish them in a single personal topic, somehow i can't make it run with 2 topics... it only gets the subscription callback for fcu/current_pose (...
herimakil
0
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1
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43
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Confusion about AsyncSpinner
Hi, I am confused about the behavior of AsyncSpinner.
My understanding is that AsyncSpinner would allow a node to process ...
sterlingm
0
votes
1
answer
29
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roscpp Callback Thread Safety SEGFAULT
I'm currently subscribing to every topic ever published in my program via ShapeShifter, and deserializing as necessary. This works great, but I'm receiving ...
solb22
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2
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418
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How to bind a node to a specific cpu core?
Dear all,
I am tyring to run a node with a specific cpu core but have no idea how to do that.
What's more, I also want to specify the cpu core of callback functions. I know I can use asynchronous ...
ZiyangLI