| // Copyright 2022 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 QUICHE_QUIC_CORE_QUIC_DEFAULT_CONNECTION_HELPER_H_ |
| #define QUICHE_QUIC_CORE_QUIC_DEFAULT_CONNECTION_HELPER_H_ |
| |
| #include "quiche/quic/core/crypto/quic_random.h" |
| #include "quiche/quic/core/quic_connection.h" |
| #include "quiche/quic/core/quic_default_clock.h" |
| #include "quiche/common/simple_buffer_allocator.h" |
| |
| namespace quic { |
| |
| // A default implementation of QuicConnectionHelperInterface. Thread-safe. |
| class QUIC_EXPORT_PRIVATE QuicDefaultConnectionHelper |
| : public QuicConnectionHelperInterface { |
| public: |
| static QuicDefaultConnectionHelper* Get() { |
| static QuicDefaultConnectionHelper* helper = |
| new QuicDefaultConnectionHelper(); |
| return helper; |
| } |
| |
| // Creates a helper that uses the default allocator. |
| QuicDefaultConnectionHelper() : QuicDefaultConnectionHelper(nullptr) {} |
| // If |allocator| is nullptr, the default one is used. |
| QuicDefaultConnectionHelper( |
| std::unique_ptr<quiche::QuicheBufferAllocator> allocator) |
| : allocator_(std::move(allocator)) {} |
| |
| QuicDefaultConnectionHelper(const QuicDefaultConnectionHelper&) = delete; |
| QuicDefaultConnectionHelper& operator=(const QuicDefaultConnectionHelper&) = |
| delete; |
| |
| const QuicClock* GetClock() const override { return QuicDefaultClock::Get(); } |
| QuicRandom* GetRandomGenerator() override { |
| return QuicRandom::GetInstance(); |
| } |
| quiche::QuicheBufferAllocator* GetStreamSendBufferAllocator() override { |
| return allocator_ ? allocator_.get() : quiche::SimpleBufferAllocator::Get(); |
| } |
| |
| private: |
| std::unique_ptr<quiche::QuicheBufferAllocator> allocator_; |
| }; |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_QUIC_DEFAULT_CONNECTION_HELPER_H_ |