50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/db/KeyValueSyncInterface.h"
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#include "td/utils/SliceBuilder.h"
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#include "td/utils/Status.h"
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#include "td/utils/tl_helpers.h"
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#include <memory>
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namespace td {
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class SecretChatDb {
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public:
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SecretChatDb(std::shared_ptr<KeyValueSyncInterface> pmc, int32 chat_id);
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// TODO: some other interface for PFS
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// two keys should be supported
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template <class ValueT>
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void set_value(const ValueT &data) {
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auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
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pmc_->set(std::move(key), serialize(data));
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}
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template <class ValueT>
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void erase_value(const ValueT &data) {
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auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
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pmc_->erase(std::move(key));
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}
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template <class ValueT>
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Result<ValueT> get_value() {
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ValueT value;
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auto key = PSTRING() << "secret" << chat_id_ << ValueT::key();
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auto value_str = pmc_->get(std::move(key));
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TRY_STATUS(unserialize(value, value_str));
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return std::move(value);
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}
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private:
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std::shared_ptr<KeyValueSyncInterface> pmc_;
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int32 chat_id_;
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};
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} // namespace td
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