include ssize_t readahead(int fd , off_t * offset , size_t count ); This format ... with "64" (e.g., off64_t versus off_t , lseek64 () versus lseek (), etc.). New programs shouldinclude ssize_t readahead(int fd , off_t * offset , size_t count ); This format ... with "64" (e.g., off64_t versus off_t , lseek64 () versus lseek (), etc.). New programs shoulddependent */ int aio_fildes; /* File descriptor */ off_t aio_offset; /* File offset */ volatile void