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// 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_
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