From 2de3dcab94864a605aadf9acb0c8c405b203f283 Mon Sep 17 00:00:00 2001
From: Tyler Brock <tyler.brock@gmail.com>
Date: Tue, 15 May 2012 13:54:44 -0400
Subject: [PATCH] RUBY-442

Using sysread so Ruby 1.8.x won't complain about nonblocking IO#read
---
 lib/mongo/util/tcp_socket.rb | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/lib/mongo/util/tcp_socket.rb b/lib/mongo/util/tcp_socket.rb
index 2806ee8..3cb6faa 100644
--- a/lib/mongo/util/tcp_socket.rb
+++ b/lib/mongo/util/tcp_socket.rb
@@ -69,13 +69,11 @@ module Mongo
       end
       if ready
         begin
-          @socket.read(maxlen, buffer)
-        rescue EOFError, Errno::ETIMEDOUT
-          raise ConnectionError
-        rescue Errno::ENOTCONN, Errno::EBADF, Errno::ECONNRESET, Errno::EPIPE
+          @socket.sysread(maxlen, buffer)
+        rescue Errno::ENOTCONN, Errno::EBADF, Errno::ECONNRESET, Errno::EPIPE, Errno::ETIMEDOUT, EOFError
           raise ConnectionFailure
-        rescue Errno::EINTR, Errno::EIO, IOError 
-          raise OperationFailure 
+        rescue Errno::EINTR, Errno::EIO, IOError
+          raise OperationFailure
         end
       else
         raise OperationTimeout