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// Copyright 2014 The Chromium 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 NET_TOOLS_QUIC_QUIC_PACKET_WRITER_WRAPPER_H_
#define NET_TOOLS_QUIC_QUIC_PACKET_WRITER_WRAPPER_H_
#include "base/memory/scoped_ptr.h"
#include "net/quic/quic_packet_writer.h"
namespace net {
namespace tools {
// Wraps a writer object to allow dynamically extending functionality. Use
// cases: replace writer while dispatcher and connections hold on to the
// wrapper; mix in monitoring in internal server; mix in mocks in unit tests.
class QuicPacketWriterWrapper : public net::QuicPacketWriter {
public:
QuicPacketWriterWrapper();
explicit QuicPacketWriterWrapper(QuicPacketWriter* writer);
virtual ~QuicPacketWriterWrapper();
// Default implementation of the QuicPacketWriter interface. Passes everything
// to |writer_|.
virtual WriteResult WritePacket(
const char* buffer,
size_t buf_len,
const IPAddressNumber& self_address,
const IPEndPoint& peer_address) OVERRIDE;
virtual bool IsWriteBlockedDataBuffered() const OVERRIDE;
virtual bool IsWriteBlocked() const OVERRIDE;
virtual void SetWritable() OVERRIDE;
// Takes ownership of |writer|.
void set_writer(QuicPacketWriter* writer);
// Releases ownership of |writer_|.
QuicPacketWriter* release_writer();
private:
scoped_ptr<QuicPacketWriter> writer_;
DISALLOW_COPY_AND_ASSIGN(QuicPacketWriterWrapper);
};
} // namespace tools
} // namespace net
#endif // NET_TOOLS_QUIC_QUIC_PACKET_WRITER_WRAPPER_H_
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