mirror of https://github.com/aria2/aria2
89 lines
2.8 KiB
C++
89 lines
2.8 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 "ByteArrayDiskWriter.h"
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#include "Util.h"
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#include "A2STR.h"
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namespace aria2 {
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ByteArrayDiskWriter::ByteArrayDiskWriter() {}
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ByteArrayDiskWriter::~ByteArrayDiskWriter() {}
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void ByteArrayDiskWriter::clear()
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{
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buf.str(A2STR::NIL);
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}
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void ByteArrayDiskWriter::initAndOpenFile(const std::string& filename,
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uint64_t totalLength)
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{
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clear();
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}
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void ByteArrayDiskWriter::openFile(const std::string& filename,
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uint64_t totalLength) {}
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void ByteArrayDiskWriter::closeFile() {}
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void ByteArrayDiskWriter::openExistingFile(const std::string& filename,
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uint64_t totalLength)
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{
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openFile(filename);
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}
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void ByteArrayDiskWriter::writeData(const unsigned char* data, size_t dataLength, off_t position)
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{
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if(size() < (uint64_t)position) {
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buf.seekp(size(), std::ios::beg);
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for(uint64_t i = size(); i < (uint64_t)position; ++i) {
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buf.put('\0');
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}
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} else {
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buf.seekp(position, std::ios::beg);
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}
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buf.write(reinterpret_cast<const char*>(data), dataLength);
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}
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ssize_t ByteArrayDiskWriter::readData(unsigned char* data, size_t len, off_t position)
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{
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buf.seekg(position, std::ios::beg);
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buf.read(reinterpret_cast<char*>(data), len);
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buf.clear();
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return buf.gcount();
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}
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} // namespace aria2
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