From 81929c984b5a8441fe3676cf5dee7b557123718f Mon Sep 17 00:00:00 2001
From: Patrick Niklaus <patrick.niklaus@student.kit.edu>
Date: Mon, 26 Mar 2018 14:23:52 +0000
Subject: [PATCH] Use boost array sink to avoid copying buffer for BufferReader

---
 include/storage/io.hpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/storage/io.hpp b/include/storage/io.hpp
index 159c149b7..fe2351ca3 100644
--- a/include/storage/io.hpp
+++ b/include/storage/io.hpp
@@ -12,6 +12,8 @@
 
 #include <boost/filesystem/fstream.hpp>
 #include <boost/iostreams/seek.hpp>
+#include <boost/iostreams/stream.hpp>
+#include <boost/iostreams/device/array.hpp>
 
 #include <cerrno>
 #include <cstring>
@@ -294,7 +296,11 @@ class FileWriter
 class BufferReader
 {
   public:
-    BufferReader(const std::string &buffer) : input_stream(buffer, std::ios::binary)
+    BufferReader(const std::string &buffer) : BufferReader(buffer.data(), buffer.size())
+    {
+    }
+
+    BufferReader(const char* buffer, const std::size_t size) : input_stream(boost::iostreams::array_source(buffer, size))
     {
         if (!input_stream)
         {
@@ -342,7 +348,7 @@ class BufferReader
     }
 
   private:
-    std::istringstream input_stream;
+    boost::iostreams::stream<boost::iostreams::array_source> input_stream;
 };
 
 class BufferWriter