Instead of reading all the data from the ros bag file, is their any ros provided method to read the bag file using memory mapped methode? For example right now i am using below program to read the ros bag named obj.bag using memory mapped i/o,
#include
#include
#include
#include
#include
namespace bip = boost::interprocess;
int main() {
std::string filename = "obj.bag";
bip::file_mapping mapping(filename.c_str(), bip::read_only);
bip::mapped_region mapped_rgn(mapping, bip::read_only);
char const* const mmaped_data = static
_cast(mapped_rgn.get_address());
std::size_t const mmap_size = mapped_rgn.get_size();
std::cout<
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