From a9cbf64137b846ba28ae0e7a0bb9d607e37fb710 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 17 Mar 2013 16:25:21 +0000
Subject: * io.c (io_fillbuf): show fd number on failure to debug.  
 http://c5632.rubyci.org/~chkbuild/ruby-trunk/log/20130316T050302Z.diff.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39803 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 8d70ed41c6..eb8b80c63b 100644
--- a/io.c
+++ b/io.c
@@ -1657,7 +1657,13 @@ io_fillbuf(rb_io_t *fptr)
         if (r < 0) {
             if (rb_io_wait_readable(fptr->fd))
                 goto retry;
-            rb_sys_fail_path(fptr->pathv);
+	    {
+		VALUE path = rb_sprintf("fd:%d ", fptr->fd);
+		if (!NIL_P(fptr->pathv)) {
+		    rb_str_append(path, fptr->pathv);
+		}
+		rb_sys_fail_path(path);
+	    }
         }
         fptr->rbuf.off = 0;
         fptr->rbuf.len = (int)r; /* r should be <= rbuf_capa */
-- 
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