From: Matt Joiner <anacrolix@gmail.com>
Date: Wed, 2 Oct 2013 09:54:23 +0000 (+1000)
Subject: Failing WriteAt should return ErrShortWrite
X-Git-Tag: v1.0.0~1806
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=381c6bef687f3e2ce9120b68d708a1881e96d1bc;p=btrtrc.git

Failing WriteAt should return ErrShortWrite

See the implementation of io.Copy.
---

diff --git a/mmap_span.go b/mmap_span.go
index f7d91059..9d2f39bb 100644
--- a/mmap_span.go
+++ b/mmap_span.go
@@ -56,7 +56,7 @@ func (me MMapSpan) WriteAt(p []byte, off int64) (n int, err error) {
 		return len(p) == 0
 	})
 	if len(p) != 0 {
-		err = io.EOF
+		err = io.ErrShortWrite
 	}
 	return
 }