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I have a Ros::Subscriber that receives messages from a topic. Since I'm doing some computations on the data I receive (and it requires some time), the delay with which I read new messages tend to increase.
Is there a way to "flush" all the unread messages in a topic so that I can read directly the newest one? (I'm using electric on ubuntu 11.10)
If you set the buffer size to 1 in the call to subscribe, you drop all but the newest message.
Set subscriber queue_size to one
rospy.Subscriber("/scan", LaserScan, scanCb,queue_size = 1)
Asked: 2012-06-24 06:54:52 -0600
Seen: 2,772 times
Last updated: Jul 13 '17
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