diff options
Diffstat (limited to 'src/mongo/db/sorter/file.cpp')
-rw-r--r-- | src/mongo/db/sorter/file.cpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/src/mongo/db/sorter/file.cpp b/src/mongo/db/sorter/file.cpp deleted file mode 100644 index f32d221c79c..00000000000 --- a/src/mongo/db/sorter/file.cpp +++ /dev/null @@ -1,143 +0,0 @@ -/** - * Copyright (C) 2021-present MongoDB, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the Server Side Public License, version 1, - * as published by MongoDB, Inc. - * - * 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 - * Server Side Public License for more details. - * - * You should have received a copy of the Server Side Public License - * along with this program. If not, see - * <http://www.mongodb.com/licensing/server-side-public-license>. - * - * 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 program with the OpenSSL library. You - * must comply with the Server Side Public License in all respects for - * all of the code used other than as permitted herein. 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 in the license file. - */ - -#include "mongo/db/sorter/file.h" - -#include <boost/filesystem/operations.hpp> - -#include "mongo/util/destructor_guard.h" - -namespace mongo::sorter { -namespace { -// We need to use the "real" errno everywhere, not GetLastError() on Windows. -std::string getError() { - int errnoCopy = errno; - StringBuilder sb; - sb << "errno:" << errnoCopy << ' ' << strerror(errnoCopy); - return sb.str(); -} -} // namespace - -File::~File() { - if (_keep) { - return; - } - - if (_file.is_open()) { - DESTRUCTOR_GUARD(_file.exceptions(std::ios::failbit)); - DESTRUCTOR_GUARD(_file.close()); - } - - DESTRUCTOR_GUARD(boost::filesystem::remove(_path)); -} - -void File::read(std::streamoff offset, std::streamsize size, void* out) { - if (!_file.is_open()) { - _open(); - } - - if (_offset != -1) { - _file.exceptions(std::ios::goodbit); - _file.flush(); - _offset = -1; - - uassert(5479100, - str::stream() << "Error flushing file " << _path.string() << ": " << getError(), - _file); - } - - _file.seekg(offset); - _file.read(reinterpret_cast<char*>(out), size); - - uassert(16817, - str::stream() << "Error reading file " << _path.string() << ": " << getError(), - _file); - - invariant(_file.gcount() == size, - str::stream() << "Number of bytes read (" << _file.gcount() - << ") not equal to expected number (" << size << ")"); - - uassert(51049, - str::stream() << "Error reading file " << _path.string() << ": " << getError(), - _file.tellg() >= 0); -} - -void File::write(const char* data, std::streamsize size) { - _ensureOpenForWriting(); - - try { - _file.write(data, size); - _offset += size; - } catch (const std::system_error& ex) { - if (ex.code() == std::errc::no_space_on_device) { - uasserted(ErrorCodes::OutOfDiskSpace, - str::stream() << ex.what() << ": " << _path.string()); - } - uasserted(5642403, - str::stream() << "Error writing to file " << _path.string() << ": " - << getError()); - } catch (const std::exception&) { - uasserted(16821, - str::stream() << "Error writing to file " << _path.string() << ": " - << getError()); - } -} - -std::streamoff File::currentOffset() { - _ensureOpenForWriting(); - return _offset; -} - -void File::_open() { - invariant(!_file.is_open()); - - boost::filesystem::create_directories(_path.parent_path()); - - // We open the provided file in append mode so that SortedFileWriter instances can share - // the same file, used serially. We want to share files in order to stay below system - // open file limits. - _file.open(_path.string(), std::ios::app | std::ios::binary | std::ios::in | std::ios::out); - - uassert(16818, - str::stream() << "Error opening file " << _path.string() << ": " << getError(), - _file.good()); -} - -void File::_ensureOpenForWriting() { - invariant(_offset != -1 || !_file.is_open()); - - if (_file.is_open()) { - return; - } - - _open(); - _file.exceptions(std::ios::failbit | std::ios::badbit); - _offset = boost::filesystem::file_size(_path); -} -} // namespace mongo::sorter |