mirror of https://github.com/aria2/aria2
111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "BtFileAllocationEntry.h"
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#include <algorithm>
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#include "BtSetup.h"
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#include "RequestGroup.h"
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#include "Command.h"
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#include "DownloadEngine.h"
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#include "DownloadContext.h"
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#include "FileEntry.h"
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#include "PieceStorage.h"
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#include "DiskAdaptor.h"
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#include "Option.h"
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#include "prefs.h"
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#include "LogFactory.h"
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namespace aria2 {
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BtFileAllocationEntry::BtFileAllocationEntry(RequestGroup* requestGroup)
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: FileAllocationEntry(requestGroup, nullptr)
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{
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}
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BtFileAllocationEntry::~BtFileAllocationEntry() = default;
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void BtFileAllocationEntry::prepareForNextAction(
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std::vector<std::unique_ptr<Command>>& commands, DownloadEngine* e)
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{
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auto rg = getRequestGroup();
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auto& dctx = rg->getDownloadContext();
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auto& ps = rg->getPieceStorage();
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auto diskAdaptor = ps->getDiskAdaptor();
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auto& option = rg->getOption();
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BtSetup().setup(commands, rg, e, option.get());
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if (option->getAsBool(PREF_ENABLE_MMAP) &&
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option->get(PREF_FILE_ALLOCATION) != V_NONE &&
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diskAdaptor->size() <= option->getAsLLInt(PREF_MAX_MMAP_LIMIT)) {
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diskAdaptor->enableMmap();
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}
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if (!rg->downloadFinished()) {
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// For DownloadContext::resetDownloadStartTime(), see also
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// RequestGroup::createInitialCommand()
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dctx->resetDownloadStartTime();
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const auto& fileEntries = dctx->getFileEntries();
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if (isUriSuppliedForRequsetFileEntry(std::begin(fileEntries),
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std::end(fileEntries))) {
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rg->createNextCommandWithAdj(commands, e, 0);
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}
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try {
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rg->saveControlFile();
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}
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catch (RecoverableException& e) {
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A2_LOG_ERROR_EX(EX_EXCEPTION_CAUGHT, e);
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}
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}
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else {
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#ifdef __MINGW32__
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if (!diskAdaptor->isReadOnlyEnabled()) {
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// On Windows, if aria2 opens files with GENERIC_WRITE access
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// right, some programs cannot open them aria2 is seeding. To
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// avoid this situation, re-open the files with read-only
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// enabled.
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A2_LOG_INFO("Closing files and re-open them with read-only mode"
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" enabled.");
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diskAdaptor->closeFile();
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diskAdaptor->enableReadOnly();
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diskAdaptor->openFile();
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}
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#endif // __MINGW32__
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rg->enableSeedOnly();
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}
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}
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} // namespace aria2
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