fragmented_message.h

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/*
 * Copyright 2025 Stanford University, NVIDIA Corporation
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef FRAGMENTED_MESSAGE_HPP
#define FRAGMENTED_MESSAGE_HPP
 
#include "realm/realm_config.h"
 
#include <vector>
#include <cstdint>
#include <cstring>
 
namespace Realm {
 
  class FragmentedMessage {
  public:
    explicit FragmentedMessage(uint32_t total_chunks = 0);
 
    bool add_chunk(uint32_t chunk_id, const void *data, size_t size);
 
    bool is_complete() const;
    size_t size() const;
    std::vector<char> reassemble() const;
 
  private:
    uint32_t total_chunks{0};
    size_t total_size{0};
    std::vector<std::vector<char>> received_chunks;
    std::vector<bool> received_flags;
    uint32_t received_count{0};
  };
} // namespace Realm
 
#endif // FRAGMENTED_MESSAGE_HPP