socketinputstream.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_INPUT_STREAM_H
#define _LOG4CXX_HELPERS_SOCKET_INPUT_STREAM_H

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

namespace log4cxx
{
	namespace helpers
	{
		class Socket;
		typedef ObjectPtrT<Socket> SocketPtr;

		class SocketInputStream;
		typedef ObjectPtrT<SocketInputStream> SocketInputStreamPtr;

		class LOG4CXX_EXPORT EOFException : public Exception
		{
		};

		class LOG4CXX_EXPORT SocketInputStream : public ObjectImpl
		{
		private:
			static size_t DEFAULT_BUFFER_SIZE;

		public:
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(SocketInputStream)
			BEGIN_LOG4CXX_CAST_MAP()
				LOG4CXX_CAST_ENTRY(SocketInputStream)
			END_LOG4CXX_CAST_MAP()

			SocketInputStream(SocketPtr socket);
			SocketInputStream(SocketPtr socket, size_t bufferSize);
			~SocketInputStream();

			void read(void * buffer, size_t len) const;
			void read(unsigned int &value) const;
			void read(int &value) const;
			void read(unsigned long &value) const;
			void read(long &value) const;
			void read(String& value) const;
			// some read functions are missing ...

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

		protected:
			SocketPtr socket;
			size_t bufferSize;
			unsigned char * memBuffer;
			size_t currentPos;
			size_t maxPos;
		};
	}  // namespace helpers
}; // namespace log4cxx

#endif // _LOG4CXX_HELPERS_SOCKET_OUTPUT_STREAM_H