frame_buffer.h

Go to the documentation of this file.

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 TVM_RUNTIME_CRT_RPC_COMMON_FRAME_BUFFER_H_
#define TVM_RUNTIME_CRT_RPC_COMMON_FRAME_BUFFER_H_
 
#include <inttypes.h>
#include <stdlib.h>
 
namespace tvm {
namespace runtime {
namespace micro_rpc {
 
class FrameBuffer {
 public:
  FrameBuffer(uint8_t* data, size_t data_size_bytes)
      : data_{data}, capacity_{data_size_bytes}, num_valid_bytes_{0}, read_cursor_{0} {}
 
  size_t Write(const uint8_t* data, size_t data_size_bytes);
 
  size_t Read(uint8_t* data, size_t data_size_bytes);
 
  size_t Peek(uint8_t* data, size_t data_size_bytes);
 
  void Clear();
 
  size_t ReadAvailable() const { return num_valid_bytes_ - read_cursor_; }
 
  size_t Size() const { return num_valid_bytes_; }
 
 private:
  uint8_t* data_;
 
  size_t capacity_;
 
  size_t num_valid_bytes_;
 
  size_t read_cursor_;
};
 
}  // namespace micro_rpc
}  // namespace runtime
}  // namespace tvm
 
#endif  // TVM_RUNTIME_CRT_RPC_COMMON_FRAME_BUFFER_H_