commit d27334f4d63d5ed27cf6b35c0f184e20a9bb5b9f
author Alexander Afanasyev <alexander.afanasyev@ucla.edu> Wed Jul 01 21:44:36 2015 -0700
committer Alexander Afanasyev <alexander.afanasyev@ucla.edu> Thu Jul 09 11:40:51 2015 +0800
tree c326498d09712f74888877a5b0c78e2459acdb91
parent 069db08ac10d6c608dcbce0efad4d93f40ab911c

util: Add constructor of Digest object from std::istream&

Change-Id: Ie3fa6511da751fe3b7b39d7a18b4909a28376d02
Refs: #3022

src/util/digest.cpp

diff --git a/src/util/digest.cpp b/src/util/digest.cpp
index 156d372..664df2b 100644
--- a/src/util/digest.cpp
+++ b/src/util/digest.cpp
@@ -32,6 +32,19 @@
 }
 
 template<typename Hash>
+Digest<Hash>::Digest(std::istream& is)
+  : m_isInProcess(false)
+  , m_isFinalized(true)
+{
+  using namespace CryptoPP;
+
+  m_buffer = make_shared<Buffer>(m_hash.DigestSize());
+  FileSource(is, true,
+             new HashFilter(m_hash,
+                            new ArraySink(m_buffer->get(), m_buffer->size())));
+}
+
+template<typename Hash>
 void
 Digest<Hash>::reset()
 {