#ifndef CMessage__h
#define CMessage__h
#include <string>
#include <iostream>

#define MAX_TRANSFER_LEN	(10*1024*1024)

namespace Chromium {
	std::string UtfToGbk(const char* utf8);
	std::string ConvertGBKToUtf8(std::string &strGBK);
class CMessage{
public:
	CMessage();
	explicit CMessage(unsigned int length);
	explicit CMessage(CMessage *p);
	~CMessage();
	const char* getPayload() const;
	const unsigned int getLength();
	char* getWriteableData();
	int getBufferLength();
	int getMessageType();
	int getSessionID();
	int getTransID();
	void exchangeSessionIdAndTransId();
	bool getIsEnd();
	int getEventID();
	int getSignatureID();
	unsigned int getCMessageLength();
	void clear();

	void setSessionID(int sessionid, bool hasTransId = true);
	void setTransID(int transid);

private:
	int memoryDynamicGrowth();
public:
	enum { HEADER_LENGTH = 4 };
	enum { SUGGEST_BUFFER_LENGTH = 1024 * 4 };
private:
	char* _data;
	unsigned int _buf_length;
};

}

#endif