From: Rob Pike <r@golang.org>
Date: Thu, 19 Nov 2009 19:51:23 +0000 (-0800)
Subject: os.ReadAt doesn't return EOF at EOF.
X-Git-Tag: weekly.2009-12-07~195
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=4e201c7f20913405dfcee7eb4ff70e5673d8da8e;p=gostls13.git

os.ReadAt doesn't return EOF at EOF.
thanks to lionkov for the fix.

Fixes #262.

R=rsc
CC=golang-dev
https://golang.org/cl/156097
---

diff --git a/src/pkg/os/file.go b/src/pkg/os/file.go
index edc228c53b..bc7f02ef98 100644
--- a/src/pkg/os/file.go
+++ b/src/pkg/os/file.go
@@ -138,6 +138,9 @@ func (file *File) ReadAt(b []byte, off int64) (n int, err Error) {
 	}
 	for len(b) > 0 {
 		m, e := syscall.Pread(file.fd, b, off);
+		if m == 0 && e == 0 {
+			return n, EOF
+		}
 		n += m;
 		if e != 0 {
 			err = &PathError{"read", file.name, Errno(e)};