mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-13 11:42:18 +00:00
68 lines
2.1 KiB
C++
68 lines
2.1 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 2017-2020 Telegram Systems LLP
|
|
*/
|
|
#pragma once
|
|
#include "td/utils/buffer.h"
|
|
#include "td/utils/Status.h"
|
|
|
|
namespace td {
|
|
class BlobViewImpl;
|
|
|
|
class BlobView {
|
|
public:
|
|
BlobView();
|
|
explicit BlobView(std::unique_ptr<BlobViewImpl> impl);
|
|
BlobView(BlobView &&);
|
|
BlobView &operator=(BlobView &&);
|
|
~BlobView();
|
|
td::Result<td::BufferSlice> to_buffer_slice();
|
|
td::Result<td::Slice> view(td::MutableSlice slice, td::uint64 offset);
|
|
td::Result<size_t> view_copy(td::MutableSlice slice, td::uint64 offset);
|
|
td::Result<size_t> write(td::Slice data, td::uint64 offset);
|
|
td::uint64 size();
|
|
|
|
explicit operator bool() const {
|
|
return bool(impl_);
|
|
}
|
|
|
|
private:
|
|
std::unique_ptr<BlobViewImpl> impl_;
|
|
};
|
|
|
|
class BufferSliceBlobView {
|
|
public:
|
|
static BlobView create(td::BufferSlice slice);
|
|
};
|
|
class FileBlobView {
|
|
public:
|
|
static td::Result<BlobView> create(td::CSlice file_path, td::uint64 file_size = 0);
|
|
};
|
|
class FileNoCacheBlobView {
|
|
public:
|
|
static td::Result<BlobView> create(td::CSlice file_path, td::uint64 file_size = 0, bool may_write = false);
|
|
};
|
|
class FileMemoryMappingBlobView {
|
|
public:
|
|
static td::Result<BlobView> create(td::CSlice file_path, td::uint64 file_size = 0);
|
|
};
|
|
|
|
// For testing purposes
|
|
struct CycicBlobView {
|
|
static td::Result<td::BlobView> create(td::BufferSlice data, td::uint64 total_size);
|
|
};
|
|
} // namespace td
|