From bd3b3c1b51a7d6ca50d9391d77c5ef618166caa3 Mon Sep 17 00:00:00 2001 From: akr Date: Mon, 7 Nov 2011 21:01:40 +0000 Subject: [PATCH] update doc. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33664 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/io.c b/io.c index c6357a667d..7996c06382 100644 --- a/io.c +++ b/io.c @@ -2357,7 +2357,10 @@ rb_io_write_nonblock(VALUE io, VALUE str) * } * * Note that this method behaves like fread() function in C. - * If you need the behavior like read(2) system call, + * This means it retry to invoke read(2) system call to read data with the specified length (or until EOF). + * This behavior is preserved even if ios is non-blocking mode. + * (This method is non-blocking flag insensitive as other methods.) + * If you need the behavior like single read(2) system call, * consider readpartial, read_nonblock and sysread. */