Thien-Thi Nguyen <t...@gnuvola.org> skribis: > My reading of sendfile(2) is that it does its best to send as much as > possible, but does not guarantee sending everything. What it does > succeed in sending, it reports to the caller. The caller loops as > desired, after evaluating (in some caller-meaningful way) the returned > information.
Just a note, this information is definitely not conveyed by the man page: sendfile() copies data between one file descriptor and another. [...] count is the number of bytes to copy between the file descriptors. Of course the return type hints at a write(2)-like interface, but the truth is that short writes had to be evidenced by experimental validation, so to speak. Ludo’.
