socketoutputstream.h

功能非常强的写日志程序

/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * 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 _LOG4CXX_HELPERS_SOCKET_OUTPUT_STREAM_H
#define _LOG4CXX_HELPERS_SOCKET_OUTPUT_STREAM_H

#include <log4cxx/helpers/tchar.h>
#include <log4cxx/helpers/objectimpl.h>
#include <log4cxx/helpers/objectptr.h>

namespace log4cxx
{
	namespace helpers
	{
		class Socket;
		typedef ObjectPtrT<Socket> SocketPtr;
		
		class SocketOutputStream;
		typedef ObjectPtrT<SocketOutputStream> SocketOutputStreamPtr;
		
		class LOG4CXX_EXPORT SocketOutputStream : public ObjectImpl
		{
		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(SocketOutputStream)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(SocketOutputStream)
			END_LOG4CXX_CAST_MAP()

			SocketOutputStream(SocketPtr socket);
			~SocketOutputStream();
			
			void write(const void * buffer, size_t len);
			void write(unsigned int value);
			void write(int value);
			void write(unsigned long value);
			void write(long value);
			void write(const String& value);
			// some write functions are missing ...

			/** Close the stream and dereference the socket.
			*/
			void close();

			/** Flushes this output stream and forces any buffered output
			bytes to be written out.
			*/
			void flush();

		protected:
			SocketPtr socket;

			/** memory stream buffer */
/*			class membuf :
				public std::basic_streambuf<char, std::char_traits<char> >
			{
			public:
				const void * buffer() const;
				const size_t size() const;
			}*/

			unsigned char * beg, * cur, * end;
		};
	}  // namespace helpers
}; // namespace log4cxx

#endif // _LOG4CXX_HELPERS_SOCKET_OUTPUT_STREAM_H