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f2f8b14047
Saved sessions may very large, as in hundreds and even thousands of megabyte when dealing with large queues. Add support to save and reload sessions to gzipped files, when libz is available. The session serializer will output gzipped contents when the file ends with .gz, while the input file reader (UriListParser) will accept whatever is thrown at it.
116 lines
3.3 KiB
C++
116 lines
3.3 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 "UriListParser.h"
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#include <cstring>
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#include <sstream>
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#include "util.h"
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#include "Option.h"
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#include "OptionHandlerFactory.h"
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#include "OptionHandler.h"
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#include "A2STR.h"
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#include "BufferedFile.h"
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#include "OptionParser.h"
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#if HAVE_ZLIB
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#include "GZipFile.h"
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#endif
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namespace aria2 {
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UriListParser::UriListParser(const std::string& filename)
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#if HAVE_ZLIB
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: fp_(new GZipFile(filename.c_str(), BufferedFile::READ))
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#else
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: fp_(new BufferedFile(filename.c_str(), BufferedFile::READ))
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#endif
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{}
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UriListParser::~UriListParser() {}
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void UriListParser::parseNext(std::vector<std::string>& uris, Option& op)
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{
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const SharedHandle<OptionParser>& optparser = OptionParser::getInstance();
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while(1) {
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if(!line_.empty() && line_[0] != '#') {
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util::split(line_.begin(), line_.end(), std::back_inserter(uris),
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'\t', true);
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// Read options
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std::stringstream ss;
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while(1) {
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line_ = fp_->getLine();
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if(line_.empty()) {
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if(fp_->eof()) {
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break;
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} else if(!fp_) {
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throw DL_ABORT_EX("UriListParser:I/O error.");
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} else {
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continue;
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}
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}
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if(line_[0] == ' ' || line_[0] == '\t') {
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ss << line_ << "\n";
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} else if(line_[0] == '#') {
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continue;
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} else {
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break;
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}
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}
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optparser->parse(op, ss);
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return;
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}
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line_ = fp_->getLine();
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if(line_.empty()) {
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if(fp_->eof()) {
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return;
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} else if(!fp_) {
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throw DL_ABORT_EX("UriListParser:I/O error.");
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}
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}
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}
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}
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bool UriListParser::hasNext()
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{
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bool rv = !line_.empty() || (fp_ && *fp_ && !fp_->eof());
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if (!rv) {
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fp_->close();
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}
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return rv;
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}
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} // namespace aria2
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