| // Copyright (c) 2012 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. |
| |
| #include "net/third_party/quic/core/quic_epoll_alarm_factory.h" |
| |
| #include <type_traits> |
| |
| #include "net/third_party/quic/core/quic_arena_scoped_ptr.h" |
| |
| namespace quic { |
| namespace { |
| |
| class QuicEpollAlarm : public QuicAlarm { |
| public: |
| QuicEpollAlarm(QuicEpollServer* epoll_server, |
| QuicArenaScopedPtr<QuicAlarm::Delegate> delegate) |
| : QuicAlarm(std::move(delegate)), |
| epoll_server_(epoll_server), |
| epoll_alarm_impl_(this) {} |
| |
| protected: |
| void SetImpl() override { |
| DCHECK(deadline().IsInitialized()); |
| epoll_server_->RegisterAlarm( |
| (deadline() - QuicTime::Zero()).ToMicroseconds(), &epoll_alarm_impl_); |
| } |
| |
| void CancelImpl() override { |
| DCHECK(!deadline().IsInitialized()); |
| epoll_alarm_impl_.UnregisterIfRegistered(); |
| } |
| |
| void UpdateImpl() override { |
| DCHECK(deadline().IsInitialized()); |
| int64_t epoll_deadline = (deadline() - QuicTime::Zero()).ToMicroseconds(); |
| if (epoll_alarm_impl_.registered()) { |
| epoll_alarm_impl_.ReregisterAlarm(epoll_deadline); |
| } else { |
| epoll_server_->RegisterAlarm(epoll_deadline, &epoll_alarm_impl_); |
| } |
| } |
| |
| private: |
| class EpollAlarmImpl : public QuicEpollAlarmBase { |
| public: |
| using int64_epoll = decltype(QuicEpollAlarmBase().OnAlarm()); |
| |
| explicit EpollAlarmImpl(QuicEpollAlarm* alarm) : alarm_(alarm) {} |
| |
| // Use the same integer type as the base class. |
| int64_epoll OnAlarm() override { |
| QuicEpollAlarmBase::OnAlarm(); |
| alarm_->Fire(); |
| // Fire will take care of registering the alarm, if needed. |
| return 0; |
| } |
| |
| private: |
| QuicEpollAlarm* alarm_; |
| }; |
| |
| QuicEpollServer* epoll_server_; |
| EpollAlarmImpl epoll_alarm_impl_; |
| }; |
| |
| } // namespace |
| |
| QuicEpollAlarmFactory::QuicEpollAlarmFactory(QuicEpollServer* epoll_server) |
| : epoll_server_(epoll_server) {} |
| |
| QuicEpollAlarmFactory::~QuicEpollAlarmFactory() = default; |
| |
| QuicAlarm* QuicEpollAlarmFactory::CreateAlarm(QuicAlarm::Delegate* delegate) { |
| return new QuicEpollAlarm(epoll_server_, |
| QuicArenaScopedPtr<QuicAlarm::Delegate>(delegate)); |
| } |
| |
| QuicArenaScopedPtr<QuicAlarm> QuicEpollAlarmFactory::CreateAlarm( |
| QuicArenaScopedPtr<QuicAlarm::Delegate> delegate, |
| QuicConnectionArena* arena) { |
| if (arena != nullptr) { |
| return arena->New<QuicEpollAlarm>(epoll_server_, std::move(delegate)); |
| } |
| return QuicArenaScopedPtr<QuicAlarm>( |
| new QuicEpollAlarm(epoll_server_, std::move(delegate))); |
| } |
| |
| } // namespace quic |