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ton/tdutils/td/utils/filesystem.h
2019-09-07 14:33:36 +04:00

47 lines
1.7 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
#include "td/utils/buffer.h"
#include "td/utils/Slice.h"
#include "td/utils/SharedSlice.h"
#include "td/utils/Status.h"
namespace td {
Result<BufferSlice> read_file(CSlice path, int64 size = -1, int64 offset = 0);
Result<string> read_file_str(CSlice path, int64 size = -1, int64 offset = 0);
Result<SecureString> read_file_secure(CSlice path, int64 size = -1, int64 offset = 0);
Status copy_file(CSlice from, CSlice to, int64 size = -1) TD_WARN_UNUSED_RESULT;
struct WriteFileOptions {
bool need_sync = true;
bool need_lock = true;
};
Status write_file(CSlice to, Slice data, WriteFileOptions options = {}) TD_WARN_UNUSED_RESULT;
string clean_filename(CSlice name);
// write file and ensure that it either fully overriden with new data, or left intact.
// Uses path_tmp to temporary storat data, than calls rename
Status atomic_write_file(CSlice path, Slice data, CSlice path_tmp = {});
} // namespace td