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Like Reader.hpp, but for multiple vehicles at once: Gather all received messages of type T by all vehicles that publish on the (filtered) topic my_topic, then return all newest samples when get_samples is used. For more information on the implementation, refer to Reader.hpp.
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The reader in MultiVehicleReader uses a history of up to 2000 samples (it only buffers the most recent 2000 samples). This is due to performance reasons and because take() might not return all received messages immediately (it sometimes needs to be called more than once internally). The value of 2000 samples might not be enough depending on your scenario. In that case, i.e. if messages of some vehicles are sometimes missing because the buffer is not large enough, you might have to increase this value. |
Writer.hpp
https://git.rwth-aachen.de/CPM/Project/Lab/software/-/blob/master/cpm_lib/include/cpm/Writer.hpp
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