1 files changed, 149 insertions, 0 deletions
diff --git a/third_party/msgpack/include/msgpack/v1/sbuffer.hpp b/third_party/msgpack/include/msgpack/v1/sbuffer.hpp
new file mode 100644
index 0000000000..387bdce2fa
--- /dev/null
+++ b/third_party/msgpack/include/msgpack/v1/sbuffer.hpp
@@ -0,0 +1,149 @@
+//
+// MessagePack for C++ simple buffer implementation
+//
+// Copyright (C) 2008-2016 FURUHASHI Sadayuki and KONDO Takatoshi
+//
+//    Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//    http://www.boost.org/LICENSE_1_0.txt)
+//
+#ifndef MSGPACK_V1_SBUFFER_HPP
+#define MSGPACK_V1_SBUFFER_HPP
+
+#include "msgpack/v1/sbuffer_decl.hpp"
+
+#include <stdexcept>
+#include <cstring>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+class sbuffer {
+public:
+    sbuffer(size_t initsz = MSGPACK_SBUFFER_INIT_SIZE):m_size(0), m_alloc(initsz)
+    {
+        if(initsz == 0) {
+            m_data = MSGPACK_NULLPTR;
+        } else {
+            m_data = (char*)::malloc(initsz);
+            if(!m_data) {
+                throw std::bad_alloc();
+            }
+        }
+    }
+
+    ~sbuffer()
+    {
+        ::free(m_data);
+    }
+
+#if !defined(MSGPACK_USE_CPP03)
+    sbuffer(const sbuffer&) = delete;
+    sbuffer& operator=(const sbuffer&) = delete;
+
+    sbuffer(sbuffer&& other) :
+        m_size(other.m_size), m_data(other.m_data), m_alloc(other.m_alloc)
+    {
+        other.m_size = other.m_alloc = 0;
+        other.m_data = MSGPACK_NULLPTR;
+    }
+
+    sbuffer& operator=(sbuffer&& other)
+    {
+        ::free(m_data);
+
+        m_size = other.m_size;
+        m_alloc = other.m_alloc;
+        m_data = other.m_data;
+
+        other.m_size = other.m_alloc = 0;
+        other.m_data = MSGPACK_NULLPTR;
+
+        return *this;
+    }
+#endif // !defined(MSGPACK_USE_CPP03)
+
+    void write(const char* buf, size_t len)
+    {
+        if(m_alloc - m_size < len) {
+            expand_buffer(len);
+        }
+        std::memcpy(m_data + m_size, buf, len);
+        m_size += len;
+    }
+
+    char* data()
+    {
+        return m_data;
+    }
+
+    const char* data() const
+    {
+        return m_data;
+    }
+
+    size_t size() const
+    {
+        return m_size;
+    }
+
+    char* release()
+    {
+        char* tmp = m_data;
+        m_size = 0;
+        m_data = MSGPACK_NULLPTR;
+        m_alloc = 0;
+        return tmp;
+    }
+
+    void clear()
+    {
+        m_size = 0;
+    }
+
+private:
+    void expand_buffer(size_t len)
+    {
+        size_t nsize = (m_alloc > 0) ?
+                m_alloc * 2 : MSGPACK_SBUFFER_INIT_SIZE;
+
+        while(nsize < m_size + len) {
+            size_t tmp_nsize = nsize * 2;
+            if (tmp_nsize <= nsize) {
+                nsize = m_size + len;
+                break;
+            }
+            nsize = tmp_nsize;
+        }
+
+        void* tmp = ::realloc(m_data, nsize);
+        if(!tmp) {
+            throw std::bad_alloc();
+        }
+
+        m_data = static_cast<char*>(tmp);
+        m_alloc = nsize;
+    }
+
+#if defined(MSGPACK_USE_CPP03)
+private:
+    sbuffer(const sbuffer&);
+    sbuffer& operator=(const sbuffer&);
+#endif  // defined(MSGPACK_USE_CPP03)
+
+private:
+    size_t m_size;
+    char* m_data;
+    size_t m_alloc;
+};
+
+/// @cond
+}  // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+}  // namespace msgpack
+
+#endif // MSGPACK_V1_SBUFFER_HPP