transfer_handler.h

// Copyright 2025 The Pigweed Authors
//
// 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
//
//     https://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.
#pragma once
 
#include "pw_trace_tokenized/config.h"
#include "pw_transfer/handler.h"
 
namespace pw::trace {
 
 
class TraceTransferHandler : public transfer::ReadOnlyHandler {
 public:
  TraceTransferHandler(uint32_t id, stream::Reader& reader)
      : ReadOnlyHandler(id, reader) {}
};
 
class TraceBufferReader : public stream::NonSeekableReader {
 public:
  constexpr TraceBufferReader() = default;
 
 private:
  size_t MoveFromBlockCache(ByteSpan dest);
  size_t MoveFromTraceBuffer(ByteSpan dest);
  StatusWithSize DoRead(ByteSpan dest) final;
 
  std::byte block_buffer_[PW_TRACE_BUFFER_MAX_BLOCK_SIZE_BYTES] = {};
  ByteSpan block_cache_ = {};
};
 
TraceBufferReader& GetTraceBufferReader();
 
 
}  // namespace pw::trace