Rename SendDataManager to SendBuffer, which is a clear and proper name. (Part 2: File names)

2011-02-19 18:18:00 +00:00
parent d3d16b8f4c
commit 0618dbd74e
6 changed files with 7 additions and 6 deletions
@@ -0,0 +1,88 @@
+/***************************************************************************
+ *   Copyright (C) 2011 by Lothar May                                      *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+/* Manager for sending network data. */
+
+#ifndef _SENDDATAMANAGER_H_
+#define _SENDDATAMANAGER_H_
+
+#include <boost/asio.hpp>
+#include <boost/thread.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <cstdlib>
+
+
+#define SEND_BUF_FIRST_ALLOC_CHUNKSIZE		4096
+#define MAX_SEND_BUF_SIZE					SEND_BUF_FIRST_ALLOC_CHUNKSIZE * 256
+
+
+class SendBuffer : public boost::enable_shared_from_this<SendBuffer>
+{
+public:
+	SendBuffer();
+	~SendBuffer();
+
+	inline size_t GetSendBufLeft() const {
+		int bytesLeft = sendBufAllocated - sendBufUsed;
+		return bytesLeft < 0 ? (size_t)0 : (size_t)bytesLeft;
+	}
+
+	inline size_t GetAllocated() const {
+		return sendBufAllocated;
+	}
+
+	inline bool ReallocSendBuf() {
+		bool retVal = false;
+		size_t allocAmount = sendBufAllocated * 2;
+		if (0 == allocAmount) {
+			allocAmount = (size_t)SEND_BUF_FIRST_ALLOC_CHUNKSIZE;
+		}
+		if (allocAmount <= MAX_SEND_BUF_SIZE) {
+			char *tempBuf = (char *)std::realloc(sendBuf, allocAmount);
+			if (tempBuf) {
+				sendBuf = tempBuf;
+				sendBufAllocated = allocAmount;
+				retVal = true;
+			}
+		}
+		return retVal;
+	}
+
+	inline void AppendToSendBufWithoutCheck(const char *data, size_t size) {
+		std::memcpy(sendBuf + sendBufUsed, data, size);
+		sendBufUsed += size;
+	}
+
+	void HandleWrite(boost::shared_ptr<boost::asio::ip::tcp::socket> socket, const boost::system::error_code &error);
+	void AsyncSendNextPacket(boost::shared_ptr<boost::asio::ip::tcp::socket> socket);
+
+	static int EncodeToBuf(const void *data, size_t size, void *arg);
+
+	mutable boost::mutex dataMutex;
+
+private:
+	char *sendBuf;
+	char *curWriteBuf;
+	size_t sendBufAllocated;
+	size_t sendBufUsed;
+	size_t curWriteBufAllocated;
+	size_t curWriteBufUsed;
+};
+
+#endif
+