mirror of
https://github.com/ton-blockchain/ton
synced 2025-02-12 19:22:37 +00:00
66 lines
2.2 KiB
C++
66 lines
2.2 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
|
|
*/
|
|
|
|
#include "TorrentInfo.h"
|
|
|
|
#include "vm/cells/CellString.h"
|
|
#include "vm/cellslice.h"
|
|
|
|
#include "td/utils/misc.h"
|
|
|
|
namespace ton {
|
|
bool TorrentInfo::pack(vm::CellBuilder &cb) const {
|
|
return cb.store_long_bool(depth, 32) && cb.store_long_bool(piece_size, 32) && cb.store_long_bool(file_size, 64) &&
|
|
cb.store_bits_bool(root_hash) && cb.store_long_bool(header_size, 64) && cb.store_bits_bool(header_hash) &&
|
|
vm::CellText::store(cb, description).is_ok();
|
|
}
|
|
|
|
bool TorrentInfo::unpack(vm::CellSlice &cs) {
|
|
return cs.fetch_uint_to(32, depth) && cs.fetch_uint_to(32, piece_size) && cs.fetch_uint_to(64, file_size) &&
|
|
cs.fetch_bits_to(root_hash) && cs.fetch_uint_to(64, header_size) && cs.fetch_bits_to(header_hash) &&
|
|
vm::CellText::fetch_to(cs, description);
|
|
}
|
|
|
|
vm::Cell::Hash TorrentInfo::get_hash() const {
|
|
return as_cell()->get_hash();
|
|
}
|
|
|
|
void TorrentInfo::init_cell() {
|
|
vm::CellBuilder cb;
|
|
CHECK(pack(cb));
|
|
cell_ = cb.finalize();
|
|
}
|
|
|
|
td::Ref<vm::Cell> TorrentInfo::as_cell() const {
|
|
CHECK(cell_.not_null());
|
|
return cell_;
|
|
}
|
|
|
|
td::uint64 TorrentInfo::pieces_count() const {
|
|
return (file_size + piece_size - 1) / piece_size;
|
|
}
|
|
|
|
TorrentInfo::PieceInfo TorrentInfo::get_piece_info(td::uint64 piece_i) const {
|
|
PieceInfo info;
|
|
info.offset = piece_size * piece_i;
|
|
CHECK(info.offset < file_size);
|
|
info.size = td::min(static_cast<td::uint64>(piece_size), file_size - info.offset);
|
|
return info;
|
|
}
|
|
} // namespace ton
|