github
/
aria2
mirror of https://github.com/aria2/aria2
1
0
Fork 0
Code Issues Releases Wiki Activity

new

pull/1/head
Tatsuhiro Tsujikawa 2006-02-22 14:31:33 +00:00
parent 2462a3b06c
commit 5a624f5a3d
6 changed files with 244 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/SegmentSplitter.cc Normal file
View File

@ -0,0 +1,46 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#include "SegmentSplitter.h"
#include "Util.h"
void SegmentSplitter::split(Segment& seg, int cuid, Segment& s) const {
long long int nep = (s.ep-(s.sp+s.ds))/2+(s.sp+s.ds);
seg.cuid = cuid;
seg.sp = nep+1;
seg.ep = s.ep;
seg.ds = 0;
seg.speed = s.speed;
seg.finish = false;
s.ep = nep;
logger->debug("return new segment { "
"sp = "+Util::llitos(seg.sp)+", "+
"ep = "+Util::llitos(seg.ep)+", "+
"ds = "+Util::llitos(seg.ds)+", "+
"speed = "+Util::itos(seg.speed)+" } to "+
"cuid "+Util::llitos(cuid));
logger->debug("update segment { "
"sp = "+Util::llitos(s.sp)+", "+
"ep = "+Util::llitos(s.ep)+", "+
"ds = "+Util::llitos(s.ds)+", "+
"speed = "+Util::itos(s.speed)+" } of "+
"cuid "+Util::llitos(s.cuid));
}

42
src/SegmentSplitter.h Normal file
View File

@ -0,0 +1,42 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_SEGMENT_SPLITTER_H_
#define _D_SEGMENT_SPLITTER_H_
#include "Segment.h"
#include "Logger.h"
class SegmentSplitter {
protected:
long long int minSegmentSize;
void split(Segment& seg, int cuid, Segment& s) const;
public:
const Logger* logger;
virtual ~SegmentSplitter() {}
virtual bool splitSegment(Segment& newSegment, int cuid, Segments& segments) = 0;
void setMinSegmentSize(long long int size) { minSegmentSize = size; }
long long int getMinSegmentSize() const { return minSegmentSize; }
};
#endif // _D_SEGMENT_SPLITTER_H_

37
src/SplitFirstSegmentSplitter.cc Normal file
View File

@ -0,0 +1,37 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#include "SplitFirstSegmentSplitter.h"
bool SplitFirstSegmentSplitter::splitSegment(Segment& seg, int cuid, Segments& segments) {
for(vector<Segment>::iterator itr = segments.begin(); itr != segments.end(); itr++) {
Segment& s = *itr;
if(s.finish) {
continue;
}
if(s.ep-(s.sp+s.ds) > minSegmentSize) {
split(seg, cuid, s);
segments.push_back(seg);
return true;
}
}
return false;
}

34
src/SplitFirstSegmentSplitter.h Normal file
View File

@ -0,0 +1,34 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_SPLIT_FIRST_SEGMENT_SPLITTER_H_
#define _D_SPLIT_FIRST_SEGMENT_SPLITTER_H_
#include "SegmentSplitter.h"
class SplitFirstSegmentSplitter : public SegmentSplitter {
public:
SplitFirstSegmentSplitter() {}
~SplitFirstSegmentSplitter() {}
bool splitSegment(Segment& newSegment, int cuid, Segments& segments);
};
#endif // _D_SPLIT_FIRST_SEGMENT_SPLITTER_H_

50
src/SplitSlowestSegmentSplitter.cc Normal file
View File

@ -0,0 +1,50 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#include "SplitSlowestSegmentSplitter.h"
bool SplitSlowestSegmentSplitter::splitSegment(Segment& seg, int cuid, Segments& segments) {
vector<Segment>::iterator slowest = segments.end();;
for(vector<Segment>::iterator itr = segments.begin(); itr != segments.end(); itr++) {
Segment& s = *itr;
if(s.finish) {
continue;
}
if(s.ep-(s.sp+s.ds) <= minSegmentSize) {
continue;
}
if(slowest == segments.end()) {
slowest = itr;
} else {
Segment sl = *slowest;
if((sl.ep-(sl.sp+sl.ds))/(sl.speed+1) < (s.ep-(s.sp+s.ds))/(s.speed+1)) {
slowest = itr;
}
}
}
if(slowest == segments.end()) {
return false;
} else {
split(seg, cuid, *slowest);
segments.push_back(seg);
return true;
}
}

35
src/SplitSlowestSegmentSplitter.h Normal file
View File

@ -0,0 +1,35 @@
/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_SPLIT_SLOWEST_SEGMENT_SPLITTER_H_
#define _D_SPLIT_SLOWEST_SEGMENT_SPLITTER_H_
#include "SegmentSplitter.h"
class SplitSlowestSegmentSplitter : public SegmentSplitter {
public:
SplitSlowestSegmentSplitter() {}
~SplitSlowestSegmentSplitter() {}
bool splitSegment(Segment& segment, int cuid, Segments& segments);
};
#endif // _D_SPLIT_SLOWEST_SEGMENT_SPLITTER_H_