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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 #include "net/quic/quic_time.h" | |
6 | |
7 #include <limits> | |
8 | |
9 #include "base/logging.h" | |
10 | |
11 namespace net { | |
12 | |
13 uint64_t QuicWallTime::ToUNIXSeconds() const { | |
14 return microseconds_ / 1000000; | |
15 } | |
16 | |
17 uint64_t QuicWallTime::ToUNIXMicroseconds() const { | |
18 return microseconds_; | |
19 } | |
20 | |
21 bool QuicWallTime::IsAfter(QuicWallTime other) const { | |
22 return microseconds_ > other.microseconds_; | |
23 } | |
24 | |
25 bool QuicWallTime::IsBefore(QuicWallTime other) const { | |
26 return microseconds_ < other.microseconds_; | |
27 } | |
28 | |
29 bool QuicWallTime::IsZero() const { | |
30 return microseconds_ == 0; | |
31 } | |
32 | |
33 QuicTime::Delta QuicWallTime::AbsoluteDifference(QuicWallTime other) const { | |
34 uint64_t d; | |
35 | |
36 if (microseconds_ > other.microseconds_) { | |
37 d = microseconds_ - other.microseconds_; | |
38 } else { | |
39 d = other.microseconds_ - microseconds_; | |
40 } | |
41 | |
42 if (d > static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) { | |
43 d = std::numeric_limits<int64_t>::max(); | |
44 } | |
45 return QuicTime::Delta::FromMicroseconds(d); | |
46 } | |
47 | |
48 QuicWallTime QuicWallTime::Add(QuicTime::Delta delta) const { | |
49 uint64_t microseconds = microseconds_ + delta.ToMicroseconds(); | |
50 if (microseconds < microseconds_) { | |
51 microseconds = std::numeric_limits<uint64_t>::max(); | |
52 } | |
53 return QuicWallTime(microseconds); | |
54 } | |
55 | |
56 // TODO(ianswett) Test this. | |
57 QuicWallTime QuicWallTime::Subtract(QuicTime::Delta delta) const { | |
58 uint64_t microseconds = microseconds_ - delta.ToMicroseconds(); | |
59 if (microseconds > microseconds_) { | |
60 microseconds = 0; | |
61 } | |
62 return QuicWallTime(microseconds); | |
63 } | |
64 | |
65 } // namespace net | |
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