1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_ 6 #define NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_ 7 8 #include "base/compiler_specific.h" 9 #include "net/quic/quic_clock.h" 10 #include "net/quic/quic_time.h" 11 12 namespace net { 13 14 class EpollServer; 15 16 namespace tools { 17 18 // Clock to efficiently retrieve an approximately accurate time from an 19 // EpollServer. 20 class QuicEpollClock : public QuicClock { 21 public: 22 explicit QuicEpollClock(EpollServer* epoll_server); 23 virtual ~QuicEpollClock(); 24 25 // Returns the approximate current time as a QuicTime object. 26 virtual QuicTime ApproximateNow() const OVERRIDE; 27 28 // Returns the current time as a QuicTime object. 29 // Note: this use significant resources please use only if needed. 30 virtual QuicTime Now() const OVERRIDE; 31 32 protected: 33 EpollServer* epoll_server_; 34 }; 35 36 } // namespace tools 37 } // namespace net 38 39 #endif // NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_ 40