From 9f5f5b7d7e766ce3e5ef5e10d850c30ea53e3f65 Mon Sep 17 00:00:00 2001
From: Jeff Muizelaar <jmuizelaar@mozilla.com>
Date: Tue, 10 Oct 2017 11:52:35 -0400
Subject: [PATCH] Forward read_exact() as well as read().

If we don't do this we end up using the generic read_exact method
which is not necessarily optimal. This is especially when
using a specialized Read implementation to go fast.
See https://github.com/TyOverby/bincode/issues/206
---
 src/de/read.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/de/read.rs b/src/de/read.rs
index 04f96391..87aa304d 100644
--- a/src/de/read.rs
+++ b/src/de/read.rs
@@ -51,12 +51,18 @@ impl <'storage> io::Read for SliceReader<'storage> {
     fn read(&mut self, out: & mut [u8]) -> io::Result<usize> {
         (&mut self.slice).read(out)
     }
+    fn read_exact(&mut self, out: & mut [u8]) -> io::Result<()> {
+        (&mut self.slice).read_exact(out)
+    }
 }
 
 impl <R: io::Read> io::Read for IoReader<R> {
     fn read(&mut self, out: & mut [u8]) -> io::Result<usize> {
         self.reader.read(out)
     }
+    fn read_exact(&mut self, out: & mut [u8]) -> io::Result<()> {
+        self.reader.read_exact(out)
+    }
 }
 
 impl <'storage> SliceReader<'storage> {