mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
90 lines
3 KiB
C++
90 lines
3 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser 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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TON Blockchain Library 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#pragma once
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#include <iostream>
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#include "td/utils/Status.h"
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#include "td/utils/Time.h"
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namespace fift {
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class FileLoader {
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public:
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virtual ~FileLoader() = default;
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struct File {
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std::string data;
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std::string path;
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};
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virtual td::Result<File> read_file(td::CSlice filename) = 0;
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virtual td::Status write_file(td::CSlice filename, td::Slice data) = 0;
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virtual td::Result<File> read_file_part(td::CSlice filename, td::int64 size, td::int64 offset) = 0;
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virtual bool is_file_exists(td::CSlice filename) = 0;
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};
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class OsFileLoader : public FileLoader {
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public:
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td::Result<File> read_file(td::CSlice filename) override;
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td::Status write_file(td::CSlice filename, td::Slice data) override;
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td::Result<File> read_file_part(td::CSlice filename, td::int64 size, td::int64 offset) override;
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bool is_file_exists(td::CSlice filename) override;
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};
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class OsTime {
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public:
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virtual ~OsTime() = default;
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virtual td::uint32 now() = 0;
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};
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//TODO: rename SourceLookup
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class SourceLookup {
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public:
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SourceLookup() = default;
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explicit SourceLookup(std::unique_ptr<FileLoader> file_loader, std::unique_ptr<OsTime> os_time = {})
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: file_loader_(std::move(file_loader)), os_time_(std::move(os_time)) {
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}
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void set_os_time(std::unique_ptr<OsTime> os_time) {
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os_time_ = std::move(os_time);
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}
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void add_include_path(td::string path);
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td::Result<FileLoader::File> lookup_source(std::string filename, std::string current_dir);
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td::Result<FileLoader::File> read_file(td::CSlice path) {
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return file_loader_->read_file(path);
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}
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td::Status write_file(td::CSlice path, td::Slice data) {
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return file_loader_->write_file(path, data);
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}
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td::Result<FileLoader::File> read_file_part(td::CSlice filename, td::int64 size, td::int64 offset) {
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return file_loader_->read_file_part(filename, size, offset);
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}
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bool is_file_exists(td::CSlice filename) {
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return file_loader_->is_file_exists(filename);
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}
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td::uint32 now() {
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if (os_time_) {
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return os_time_->now();
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}
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return static_cast<td::uint32>(td::Clocks::system());
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}
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protected:
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std::unique_ptr<FileLoader> file_loader_;
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std::unique_ptr<OsTime> os_time_;
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std::vector<std::string> source_include_path_;
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};
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} // namespace fift
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