iokit.cpp

粗糙集应用软件

//-------------------------------------------------------------------
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Revisions.....:
//===================================================================

#include <stdafx.h> // Precompiled headers.
#include <copyright.h>

#include <kernel/utilities/iokit.h>
#include <kernel/utilities/delimiter.h>

#include <kernel/system/fstream.h>

#include <kernel/basic/string.h>

//-------------------------------------------------------------------
// Static stuff.
//===================================================================

unsigned int  IOKit::buffersize_ = 10240;
char         *IOKit::buffer_     = NULL;

//-------------------------------------------------------------------
// Methods for class IOKit.
//===================================================================

//-------------------------------------------------------------------
// Method........: AllocateBuffer
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......: More optimal reuse of allocated buffer is possible.
// Revisions.....:
//===================================================================

bool
IOKit::AllocateBuffer(unsigned int buffersize) {

	// Reuse current buffer?
	if ((buffer_ != NULL) && (buffersize == buffersize_))
		return true;

	buffersize_ = buffersize;

	// Deallocate current buffer?
	if (buffer_ != NULL)
		delete [] buffer_;

	// Allocate new buffer.
	buffer_ = new char[buffersize_];

	return (buffer_ != NULL);

}

//-------------------------------------------------------------------
// Method........: Open
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....:
//===================================================================

bool
IOKit::Open(ifstream &stream, const String &filename) {

	stream.open(filename.GetBuffer(), ios::in | ios::nocreate);

	return (1 == stream.is_open());

}

//-------------------------------------------------------------------
// Method........: Open
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....:
//===================================================================

bool
IOKit::Open(ofstream &stream, const String &filename, bool append) {

	if (!append)
		stream.open(filename.GetBuffer());
	else
		stream.open(filename.GetBuffer(), ios::out | ios::app);

	return (1 == stream.is_open());

}

//-------------------------------------------------------------------
// Method........: Close
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....:
//===================================================================

bool
IOKit::Close(ifstream &stream) {

	stream.close();

	return true;

}

//-------------------------------------------------------------------
// Method........: Close
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....:
//===================================================================

bool
IOKit::Close(ofstream &stream) {

	stream.close();

	return true;

}

//-------------------------------------------------------------------
// Method........: Save
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....: 970511 A