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I have a different answer for you :)
99% of the people use rosbag from the command line. This means that your message is:
1) Serialized on the publisher side. 2) Sent by TCP 3) received by the rosbag recorder, 4) Stored.
Very few people realize that instead of publishing it, you write the message inside your C++ application, avoiding the latency of point 2) and 3)
The only problem is that you have a single file per process, but you can merge this files later with a script...
Take a look to the C++ API or rosbag_storage https://docs.ros.org/api/rosbag_storage/html/c++/
| | 2 | No.2 Revision |
I have a different answer for you :)
99% of the people use rosbag from the command line. This means that your message is:
1)
Very few people realize that instead of publishing it, you write the message inside your C++ application, avoiding the latency of point 2) and 3)
The only problem is that you have a single file per process, but you can merge this files later with a script...
Take a look to the C++ API or rosbag_storage https://docs.ros.org/api/rosbag_storage/html/c++/
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