aria2/src/Range.h

97 lines
2.6 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef _D_RANGE_H_
#define _D_RANGE_H_
#include "common.h"
#include "SharedHandle.h"
#include <stdint.h>
namespace aria2 {
class Range {
private:
off_t startByte;
off_t endByte;
uint64_t entityLength;
public:
Range():startByte(0), endByte(0), entityLength(0) {}
Range(off_t startByte, off_t endByte, uint64_t entityLength):
startByte(startByte), endByte(endByte), entityLength(entityLength) {}
bool operator==(const Range& range) const
{
return startByte == range.startByte &&
endByte == range.endByte &&
entityLength == range.entityLength;
}
bool operator!=(const Range& range) const
{
return !(*this == range);
}
off_t getStartByte() const
{
return startByte;
}
off_t getEndByte() const
{
return endByte;
}
uint64_t getEntityLength() const
{
return entityLength;
}
uint64_t getContentLength() const
{
if(endByte >= startByte) {
return endByte-startByte+1;
} else {
return 0;
}
}
};
typedef SharedHandle<Range> RangeHandle;
} // namespace aria2
#endif // _D_RANGE_H_