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Side by Side Diff: net/quic/quic_bandwidth.h

Issue 992733002: Remove //net (except for Android test stuff) and sdch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 9 months ago
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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 // QuicBandwidth represents a bandwidth, stored in bits per second resolution.
6
7 #ifndef NET_QUIC_QUIC_BANDWIDTH_H_
8 #define NET_QUIC_QUIC_BANDWIDTH_H_
9
10 #include "base/basictypes.h"
11 #include "net/quic/quic_time.h"
12
13 namespace net {
14
15 typedef uint64 QuicByteCount;
16 typedef uint64 QuicPacketCount;
17
18 class NET_EXPORT_PRIVATE QuicBandwidth {
19 public:
20 // Creates a new QuicBandwidth with an internal value of 0.
21 static QuicBandwidth Zero();
22
23 // Create a new QuicBandwidth holding the bits per second.
24 static QuicBandwidth FromBitsPerSecond(int64 bits_per_second);
25
26 // Create a new QuicBandwidth holding the kilo bits per second.
27 static QuicBandwidth FromKBitsPerSecond(int64 k_bits_per_second);
28
29 // Create a new QuicBandwidth holding the bytes per second.
30 static QuicBandwidth FromBytesPerSecond(int64 bytes_per_second);
31
32 // Create a new QuicBandwidth holding the kilo bytes per second.
33 static QuicBandwidth FromKBytesPerSecond(int64 k_bytes_per_second);
34
35 // Create a new QuicBandwidth based on the bytes per the elapsed delta.
36 static QuicBandwidth FromBytesAndTimeDelta(QuicByteCount bytes,
37 QuicTime::Delta delta);
38
39 int64 ToBitsPerSecond() const;
40
41 int64 ToKBitsPerSecond() const;
42
43 int64 ToBytesPerSecond() const;
44
45 int64 ToKBytesPerSecond() const;
46
47 QuicByteCount ToBytesPerPeriod(QuicTime::Delta time_period) const;
48
49 int64 ToKBytesPerPeriod(QuicTime::Delta time_period) const;
50
51 bool IsZero() const;
52
53 QuicBandwidth Add(const QuicBandwidth& delta) const;
54
55 QuicBandwidth Subtract(const QuicBandwidth& delta) const;
56
57 QuicBandwidth Scale(float scale_factor) const;
58
59 QuicTime::Delta TransferTime(QuicByteCount bytes) const;
60
61 private:
62 explicit QuicBandwidth(int64 bits_per_second);
63 int64 bits_per_second_;
64 };
65
66 // Non-member relational operators for QuicBandwidth.
67 inline bool operator==(QuicBandwidth lhs, QuicBandwidth rhs) {
68 return lhs.ToBitsPerSecond() == rhs.ToBitsPerSecond();
69 }
70 inline bool operator!=(QuicBandwidth lhs, QuicBandwidth rhs) {
71 return !(lhs == rhs);
72 }
73 inline bool operator<(QuicBandwidth lhs, QuicBandwidth rhs) {
74 return lhs.ToBitsPerSecond() < rhs.ToBitsPerSecond();
75 }
76 inline bool operator>(QuicBandwidth lhs, QuicBandwidth rhs) {
77 return rhs < lhs;
78 }
79 inline bool operator<=(QuicBandwidth lhs, QuicBandwidth rhs) {
80 return !(rhs < lhs);
81 }
82 inline bool operator>=(QuicBandwidth lhs, QuicBandwidth rhs) {
83 return !(lhs < rhs);
84 }
85
86 } // namespace net
87 #endif // NET_QUIC_QUIC_BANDWIDTH_H_
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