transactionfile.h

一个c++实现的acd的例子。 ----ACDCommandListener.cpp ---ACDCommandListenerThread.cpp ---ACDConfig.cpp ---a

#if !defined(TransactionFile_H)
#define TransactionFile_H



#include <string>
using namespace std;


#include "Lock.h"
#include "SysEvent.h"

////////////////////////////////////////////////////////////////////////////////
// TransactionFile
//
// Purpose: text file class

//##ModelId=424BB63F023A
class TransactionFile :
	public Lock,
	public SysEvent
{
	//##ModelId=424BB63F024B
	long	m_readOffset;			// current read offset
	//##ModelId=424BB63F0259
	long	m_writeOffset;			// current write offset
	//##ModelId=424BB63F025A
	DWORD	m_readWait;				// time (ms) to wait after read
	//##ModelId=424BB63F0269
	DWORD	m_writeWait;			// time (ms) to wait after write
	//##ModelId=424BB63F0278
	DWORD	m_openFlags;			// flags used to open file
	//##ModelId=424BB63F027A
	string	m_name;					// name of file

public:
	//##ModelId=424BB63F0288
	HANDLE	m_hFile;


	//##ModelId=424BB63F0289
	TransactionFile ();
	//##ModelId=424BB63F0298
	~TransactionFile (); 

	// show error
	//##ModelId=424BB63F0299
	void	showLastError	();
	//##ModelId=424BB63F029A
	bool	invalidFile		();

	// open methods
	//##ModelId=424BB63F029B
	bool	create			( string & fileName );
	//##ModelId=424BB63F02A8
	bool	open			( string & fileName );
	//##ModelId=424BB63F02AA
	bool	openAlways		( string & fileName );
	//##ModelId=424BB63F02B8
	bool	open			( string & fileName, DWORD openFlags );
	//##ModelId=424BB63F02C6
	void	close			();

	// file info/position methods
	//##ModelId=424BB63F02C7
	bool	setPosition		( DWORD position, bool read = true );
	//##ModelId=424BB63F02D6
	long	size			();
	//##ModelId=424BB63F02D7
	bool	offsetPosition	( DWORD offset, bool read = true  );

	// clear the file
	//##ModelId=424BB63F02E6
	void	clear			();

	// read/write methods
	//##ModelId=424BB63F02E7
	bool	write			( LPTSTR pBuffer, DWORD noToWrite, bool wait = true );
	//##ModelId=424BB63F02F6
	bool	read			( LPTSTR pBuffer, DWORD noToRead, bool wait = true );

	//##ModelId=424BB63F0306
	void    operator <<		( string & buffer )
	{
		write( (LPTSTR) buffer.c_str(), buffer.size() );
	}

	//##ModelId=424BB63F0308
	operator HANDLE () 
	{ 
		return m_hFile; 
	}

	//##ModelId=424BB63F0309
	void setReadWait ( DWORD wait )
	{ m_readWait = wait; }

	//##ModelId=424BB63F0316
	void setWriteWait ( DWORD wait )
	{ m_writeWait = wait; }

};


void operator << ( stringstream & strm, TransactionFile & file );
void operator << ( TransactionFile & file, stringstream & strm );


#endif