| ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
Hi,
I have a qt application and which has many Callbacks. As I dont have and infinite loop, I can't write ros::spin(). I would like to have ros::spin() or spinonce() in the background. How can i achieve using multi-threading. Any help would be highly appreciated
Thanks, Arjun
ROS, spin() and multi-threading has been asked a few times already. Some earlier questions & answers:
And just for completeness, the authoritative source roscpp/Overview/Callbacks and Spinning.
In your case an AsyncSpinner is probably a good option (from roscpp/Overview/Callbacks and Spinning - Multi-threaded Spinning):
ros::AsyncSpinner spinner(4); // Use 4 threads
spinner.start();
I read these links, and I do it in the same way,but it doesn't work in my pro. 1.I run spin() in boost::thread,and subscribe in Goal::Goal()(ie: ros::Subscriber sub = nh_.subscribe<actionlib_msgs::goalstatusarray>("/move_base/status",100,fun_cb);) but the thread also block my GUI.Thanks your help
Asked: 2015-05-30 10:07:44 -0500
Seen: 2,500 times
Last updated: May 30 '15
ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
