1+ // Protocol Buffers - Google's data interchange format
2+ // Copyright 2008 Google Inc. All rights reserved.
3+ // https://developers.google.com/protocol-buffers/
4+ //
5+ // Redistribution and use in source and binary forms, with or without
6+ // modification, are permitted provided that the following conditions are
7+ // met:
8+ //
9+ // * Redistributions of source code must retain the above copyright
10+ // notice, this list of conditions and the following disclaimer.
11+ // * Redistributions in binary form must reproduce the above
12+ // copyright notice, this list of conditions and the following disclaimer
13+ // in the documentation and/or other materials provided with the
14+ // distribution.
15+ // * Neither the name of Google Inc. nor the names of its
16+ // contributors may be used to endorse or promote products derived from
17+ // this software without specific prior written permission.
18+ //
19+ // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20+ // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21+ // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22+ // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23+ // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24+ // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25+ // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26+ // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27+ // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28+ // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29+ // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30+
31+ syntax = "proto3" ;
32+
33+ package google.protobuf ;
34+
35+ option csharp_namespace = "Google.Protobuf.WellKnownTypes" ;
36+ option cc_enable_arenas = true ;
37+ option go_package = "google.golang.org/protobuf/types/known/durationpb" ;
38+ option java_package = "com.google.protobuf" ;
39+ option java_outer_classname = "DurationProto" ;
40+ option java_multiple_files = true ;
41+ option objc_class_prefix = "GPB" ;
42+
43+ // A Duration represents a signed, fixed-length span of time represented
44+ // as a count of seconds and fractions of seconds at nanosecond
45+ // resolution. It is independent of any calendar and concepts like "day"
46+ // or "month". It is related to Timestamp in that the difference between
47+ // two Timestamp values is a Duration and it can be added or subtracted
48+ // from a Timestamp. Range is approximately +-10,000 years.
49+ //
50+ // # Examples
51+ //
52+ // Example 1: Compute Duration from two Timestamps in pseudo code.
53+ //
54+ // Timestamp start = ...;
55+ // Timestamp end = ...;
56+ // Duration duration = ...;
57+ //
58+ // duration.seconds = end.seconds - start.seconds;
59+ // duration.nanos = end.nanos - start.nanos;
60+ //
61+ // if (duration.seconds < 0 && duration.nanos > 0) {
62+ // duration.seconds += 1;
63+ // duration.nanos -= 1000000000;
64+ // } else if (duration.seconds > 0 && duration.nanos < 0) {
65+ // duration.seconds -= 1;
66+ // duration.nanos += 1000000000;
67+ // }
68+ //
69+ // Example 2: Compute Timestamp from Timestamp + Duration in pseudo code.
70+ //
71+ // Timestamp start = ...;
72+ // Duration duration = ...;
73+ // Timestamp end = ...;
74+ //
75+ // end.seconds = start.seconds + duration.seconds;
76+ // end.nanos = start.nanos + duration.nanos;
77+ //
78+ // if (end.nanos < 0) {
79+ // end.seconds -= 1;
80+ // end.nanos += 1000000000;
81+ // } else if (end.nanos >= 1000000000) {
82+ // end.seconds += 1;
83+ // end.nanos -= 1000000000;
84+ // }
85+ //
86+ // Example 3: Compute Duration from datetime.timedelta in Python.
87+ //
88+ // td = datetime.timedelta(days=3, minutes=10)
89+ // duration = Duration()
90+ // duration.FromTimedelta(td)
91+ //
92+ // # JSON Mapping
93+ //
94+ // In JSON format, the Duration type is encoded as a string rather than an
95+ // object, where the string ends in the suffix "s" (indicating seconds) and
96+ // is preceded by the number of seconds, with nanoseconds expressed as
97+ // fractional seconds. For example, 3 seconds with 0 nanoseconds should be
98+ // encoded in JSON format as "3s", while 3 seconds and 1 nanosecond should
99+ // be expressed in JSON format as "3.000000001s", and 3 seconds and 1
100+ // microsecond should be expressed in JSON format as "3.000001s".
101+ //
102+ //
103+ message Duration {
104+ // Signed seconds of the span of time. Must be from -315,576,000,000
105+ // to +315,576,000,000 inclusive. Note: these bounds are computed from:
106+ // 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
107+ int64 seconds = 1 ;
108+
109+ // Signed fractions of a second at nanosecond resolution of the span
110+ // of time. Durations less than one second are represented with a 0
111+ // `seconds` field and a positive or negative `nanos` field. For durations
112+ // of one second or more, a non-zero value for the `nanos` field must be
113+ // of the same sign as the `seconds` field. Must be from -999,999,999
114+ // to +999,999,999 inclusive.
115+ int32 nanos = 2 ;
116+ }
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