| // Copyright 2015 The Weave Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIBWEAVE_SRC_STREAMS_H_ |
| #define LIBWEAVE_SRC_STREAMS_H_ |
| |
| #include <vector> |
| |
| #include <base/memory/weak_ptr.h> |
| #include <weave/stream.h> |
| |
| namespace weave { |
| |
| namespace provider { |
| class TaskRunner; |
| } |
| |
| class MemoryStream : public InputStream, public OutputStream { |
| public: |
| MemoryStream(const std::vector<uint8_t>& data, |
| provider::TaskRunner* task_runner); |
| |
| void Read(void* buffer, |
| size_t size_to_read, |
| const ReadCallback& callback) override; |
| |
| void Write(const void* buffer, |
| size_t size_to_write, |
| const WriteCallback& callback) override; |
| |
| const std::vector<uint8_t>& GetData() const { return data_; } |
| |
| private: |
| std::vector<uint8_t> data_; |
| provider::TaskRunner* task_runner_{nullptr}; |
| size_t read_position_{0}; |
| }; |
| |
| class StreamCopier { |
| public: |
| StreamCopier(InputStream* source, OutputStream* destination); |
| |
| void Copy(const InputStream::ReadCallback& callback); |
| |
| private: |
| void OnWriteDone(const InputStream::ReadCallback& callback, ErrorPtr error); |
| void OnReadDone(const InputStream::ReadCallback& callback, |
| size_t size, |
| ErrorPtr error); |
| |
| InputStream* source_{nullptr}; |
| OutputStream* destination_{nullptr}; |
| |
| size_t size_done_{0}; |
| std::vector<uint8_t> buffer_; |
| |
| base::WeakPtrFactory<StreamCopier> weak_ptr_factory_{this}; |
| }; |
| |
| } // namespace weave |
| |
| #endif // LIBWEAVE_SRC_STREAMS_H_ |