blob: 2dec4a204b8f88f87208679e91371ada345d9673 [file] [log] [blame]
// Copyright 2020 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
// 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 <array>
#include <cstddef>
#include <span>
#include "pw_stream/stream.h"
namespace pw::stream {
class MemoryWriter : public Writer {
MemoryWriter(std::span<std::byte> dest) : dest_(dest) {}
size_t bytes_written() const { return bytes_written_; }
std::span<const std::byte> WrittenData() const {
return dest_.first(bytes_written_);
const std::byte* data() const { return; }
// Implementation for writing data to this stream.
// If the in-memory buffer is exhausted in the middle of a write, this will
// perform a partial write and Status::RESOURCE_EXHAUSTED will be returned.
Status DoWrite(std::span<const std::byte> data) override;
std::span<std::byte> dest_;
size_t bytes_written_ = 0;
template <size_t size_bytes>
class MemoryWriterBuffer : public MemoryWriter {
MemoryWriterBuffer() : MemoryWriter(buffer_) {}
std::array<std::byte, size_bytes> buffer_;
} // namespace pw::stream