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/* <!-- 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 --> */
#include "DefaultFileAllocator.h"
#include "DlAbortEx.h"
#include "TimeA2.h"
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
void DefaultFileAllocator::allocate(int fd, int64_t totalLength)
{
if(0 != lseek(fd, 0, SEEK_SET)) {
throw new DlAbortEx("Seek failed: %s", strerror(errno));
}
int32_t bufSize = 4096;
char buf[4096];
memset(buf, 0, bufSize);
int64_t x = (totalLength+bufSize-1)/bufSize;
fileAllocationMonitor->setMinValue(0);
fileAllocationMonitor->setMaxValue(totalLength);
fileAllocationMonitor->setCurrentValue(0);
fileAllocationMonitor->showProgress();
Time cp;
for(int64_t i = 0; i < x; ++i) {
if(write(fd, buf, bufSize) < 0) {
throw new DlAbortEx("Allocation failed: %s", strerror(errno));
}
if(cp.elapsedInMillis(500)) {
fileAllocationMonitor->setCurrentValue(i*bufSize);
fileAllocationMonitor->showProgress();
cp.reset();
}
}
fileAllocationMonitor->setCurrentValue(totalLength);
fileAllocationMonitor->showProgress();
ftruncate(fd, totalLength);
}
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