lang/c/msgpack: reimplemented C++ binding with template-based static resolution design

git-svn-id: file:///Users/frsyuki/project/msgpack-git/svn/x@67 5a5092ae-2292-43ba-b2d5-dcab9c1a2731

cpp/zone.hpp

@@ -0,0 +1,70 @@
+//
+// MessagePack for C++ memory pool
+//
+// Copyright (C) 2008 FURUHASHI Sadayuki
+//
+//    Licensed under the Apache License, Version 2.0 (the "License");
+//    you may not use this file except in compliance with the License.
+//    You may obtain a copy of the License at
+//
+//        http://www.apache.org/licenses/LICENSE-2.0
+//
+//    Unless required by applicable law or agreed to in writing, software
+//    distributed under the License is distributed on an "AS IS" BASIS,
+//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//    See the License for the specific language governing permissions and
+//    limitations under the License.
+//
+#ifndef MSGPACK_ZONE_HPP__
+#define MSGPACK_ZONE_HPP__
+
+#include "msgpack/object.hpp"
+#include <cstdlib>
+#include <vector>
+
+namespace msgpack {
+
+
+class zone {
+public:
+	zone();
+	~zone();
+
+public:
+	char* malloc(size_t count);
+	char* realloc(char* ptr, size_t count);
+	object* malloc_container(size_t count);
+
+	void clear();
+
+private:
+	std::vector<char*> m_ptrs;
+
+private:
+	zone(const zone&);
+};
+
+
+inline char* zone::malloc(size_t count)
+{
+	char* ptr = (char*)::malloc(count);
+	if(!ptr) { throw std::bad_alloc(); }
+	try {
+		m_ptrs.push_back(ptr);
+	} catch (...) {
+		free(ptr);
+		throw;
+	}
+	return ptr;
+}
+
+inline object* zone::malloc_container(size_t count)
+{
+	return (object*)zone::malloc(sizeof(object)*count);
+}
+
+
+}  // namespace msgpack
+
+#endif /* msgpack/zone.hpp */
+