diff options
-rw-r--r-- | io.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -1941,14 +1941,21 @@ io_readpartial(int argc, VALUE *argv, VALUE io) * until io is readable for avoiding busy loop. * This can be done as follows. * + * # emulates blocking read (readpartial). * begin * result = io.read_nonblock(maxlen) - * rescue IO::WaitReadable, Errno::EINTR + * rescue IO::WaitReadable * IO.select([io]) * retry * end * - * Note that this is identical to readpartial + * Although IO#read_nonblock doesn't raise IO::WaitWritable. + * OpenSSL::Buffering#read_nonblock can raise IO::WaitWritable. + * If IO and SSL should be used polymorphically, + * IO::WaitWritable should be rescued too. + * See the document of OpenSSL::Buffering#read_nonblock for sample code. + * + * Note that this method is identical to readpartial * except the non-blocking flag is set. */ |