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fast_io.rs: splice if copy_file_range is not supported #443
Description
copy_file_range is limited e.g. copy_file_range to pipe is impossible. In the case, we should try extending stdout's pipe size by fcntl and splice.
Moreover, mmap should be done for memfd to prevent SIGBUS when input was truncated.
@dspinellis
Activity
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use sendfile or splice if copy_file_range is not supported
fast_io.rs: use splice if copy_file_range is not supported
[-]fast_io.rs: use sendfile or splice if copy_file_range is not supported[/-][+]fast_io.rs: splice if copy_file_range is not supported[/+]