From: matz@... (Yukihiro Matsumoto)
Date: 2001-12-04T09:04:53+09:00
Subject: [ruby-talk:27388] Re: BUG in #read

Hi,

In message "[ruby-talk:27314] BUG in #read"
    on 01/12/03, Mathieu Bouchard <matju@sympatico.ca> writes:

|With #read (at least TCPSocket, maybe IO), trying to read n bytes from a
|non-blocking socket causes either n bytes to be returned or an exception
|to be thrown. in the event that m bytes are read, 0<m, m<n, then m bytes
|are *lost*.

IO#read should not raise exception for EWOULDBLOCK.  Does the
following patch fix the problem?

--- io.c	2001/11/19 05:03:03	1.100
+++ io.c	2001/12/03 19:02:50
@@ -515,2 +515,6 @@
 		if (errno == EINTR) continue;
+		if (errno == EAGAIN) return len - n;
+#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+		if (errno == EWOULDBLOCK) return len - n;
+#endif
 		rb_sys_fail(0);


--
							matz.
p.s.
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