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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/basictypes.h" | |
9 #include "base/compiler_specific.h" | |
10 #include "net/quic/quic_clock.h" | |
11 #include "net/quic/quic_time.h" | |
12 | |
13 namespace net { | |
14 | |
15 class EpollServer; | |
16 | |
17 namespace tools { | |
18 | |
19 // Clock to efficiently retrieve an approximately accurate time from an | |
20 // EpollServer. | |
21 class QuicEpollClock : public QuicClock { | |
22 public: | |
23 explicit QuicEpollClock(EpollServer* epoll_server); | |
24 ~QuicEpollClock() override; | |
25 | |
26 // Returns the approximate current time as a QuicTime object. | |
27 QuicTime ApproximateNow() const override; | |
28 | |
29 // Returns the current time as a QuicTime object. | |
30 // Note: this use significant resources please use only if needed. | |
31 QuicTime Now() const override; | |
32 | |
33 protected: | |
34 EpollServer* epoll_server_; | |
35 | |
36 private: | |
37 DISALLOW_COPY_AND_ASSIGN(QuicEpollClock); | |
38 }; | |
39 | |
40 } // namespace tools | |
41 } // namespace net | |
42 | |
43 #endif // NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_ | |
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