| // 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_THIRD_PARTY_QUIC_CORE_QUIC_PACKET_WRITER_WRAPPER_H_ |
| #define NET_THIRD_PARTY_QUIC_CORE_QUIC_PACKET_WRITER_WRAPPER_H_ |
| |
| #include <cstddef> |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "net/third_party/quic/core/quic_packet_writer.h" |
| |
| namespace quic { |
| |
| // 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; mix in mocks in unit tests. |
| class QuicPacketWriterWrapper : public QuicPacketWriter { |
| public: |
| QuicPacketWriterWrapper(); |
| QuicPacketWriterWrapper(const QuicPacketWriterWrapper&) = delete; |
| QuicPacketWriterWrapper& operator=(const QuicPacketWriterWrapper&) = delete; |
| ~QuicPacketWriterWrapper() override; |
| |
| // Default implementation of the QuicPacketWriter interface. Passes everything |
| // to |writer_|. |
| WriteResult WritePacket(const char* buffer, |
| size_t buf_len, |
| const QuicIpAddress& self_address, |
| const QuicSocketAddress& peer_address, |
| PerPacketOptions* options) override; |
| bool IsWriteBlocked() const override; |
| void SetWritable() override; |
| QuicByteCount GetMaxPacketSize( |
| const QuicSocketAddress& peer_address) const override; |
| bool SupportsReleaseTime() const override; |
| bool IsBatchMode() const override; |
| char* GetNextWriteLocation(const QuicIpAddress& self_address, |
| const QuicSocketAddress& peer_address) override; |
| WriteResult Flush() override; |
| |
| // Takes ownership of |writer|. |
| void set_writer(QuicPacketWriter* writer); |
| |
| // Does not take ownership of |writer|. |
| void set_non_owning_writer(QuicPacketWriter* writer); |
| |
| virtual void set_peer_address(const QuicSocketAddress& peer_address) {} |
| |
| QuicPacketWriter* writer() { return writer_; } |
| |
| private: |
| void unset_writer(); |
| |
| QuicPacketWriter* writer_ = nullptr; |
| bool owns_writer_ = false; |
| }; |
| |
| } // namespace quic |
| |
| #endif // NET_THIRD_PARTY_QUIC_CORE_QUIC_PACKET_WRITER_WRAPPER_H_ |