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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2009 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 "FallocFileAllocationIterator.h"
#include "DlAbortEx.h"
#include "util.h"
#include "LogFactory.h"
namespace aria2 {
#ifdef __MINGW32__
bool FallocFileAllocationIterator::gainPrivilegeAttempted_ = false;
#endif // __MINGW32__
FallocFileAllocationIterator::FallocFileAllocationIterator(BinaryStream* stream,
int64_t offset,
int64_t totalLength)
: stream_(stream), offset_(offset), totalLength_(totalLength)
{
#ifdef __MINGW32__
// Windows build: --file-allocation=falloc uses SetFileValidData
// which requires SE_MANAGE_VOLUME_NAME privilege. SetFileValidData
// has security implications (see
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365544%28v=vs.85%29.aspx).
if (!gainPrivilegeAttempted_) {
if (!util::gainPrivilege(SE_MANAGE_VOLUME_NAME)) {
A2_LOG_WARN("--file-allocation=falloc will not work properly.");
}
gainPrivilegeAttempted_ = true;
}
#endif // __MINGW32__
}
void FallocFileAllocationIterator::allocateChunk()
{
if (offset_ < totalLength_) {
stream_->allocate(offset_, totalLength_ - offset_, false);
offset_ = totalLength_;
}
else {
stream_->truncate(totalLength_);
offset_ = totalLength_;
}
}
bool FallocFileAllocationIterator::finished()
{
return offset_ == totalLength_;
}
int64_t FallocFileAllocationIterator::getCurrentLength() { return offset_; }
int64_t FallocFileAllocationIterator::getTotalLength() { return totalLength_; }
} // namespace aria2
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