Note that dio_read on Windows (other platforms unknown) will not timeout if there is no data to read. There is no way to specify a timeout or do a non-blocking read on Windows.
(PHP 4 >= 4.2.0, PHP 5 < 5.1.0)
dio_read — 从文件描述符读取字节
从 fd
读取的字节。
Note that dio_read on Windows (other platforms unknown) will not timeout if there is no data to read. There is no way to specify a timeout or do a non-blocking read on Windows.