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 go_package = "github.com/golang/protobuf/ptypes/duration"; 37 option java_package = "com.google.protobuf"; 38 option java_outer_classname = "DurationProto"; 39 option java_multiple_files = true; 40 option java_generate_equals_and_hash = 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 // Example 1: Compute Duration from two Timestamps in pseudo code. 51 // 52 // Timestamp start = ...; 53 // Timestamp end = ...; 54 // Duration duration = ...; 55 // 56 // duration.seconds = end.seconds - start.seconds; 57 // duration.nanos = end.nanos - start.nanos; 58 // 59 // if (duration.seconds < 0 && duration.nanos > 0) { 60 // duration.seconds += 1; 61 // duration.nanos -= 1000000000; 62 // } else if (durations.seconds > 0 && duration.nanos < 0) { 63 // duration.seconds -= 1; 64 // duration.nanos += 1000000000; 65 // } 66 // 67 // Example 2: Compute Timestamp from Timestamp + Duration in pseudo code. 68 // 69 // Timestamp start = ...; 70 // Duration duration = ...; 71 // Timestamp end = ...; 72 // 73 // end.seconds = start.seconds + duration.seconds; 74 // end.nanos = start.nanos + duration.nanos; 75 // 76 // if (end.nanos < 0) { 77 // end.seconds -= 1; 78 // end.nanos += 1000000000; 79 // } else if (end.nanos >= 1000000000) { 80 // end.seconds += 1; 81 // end.nanos -= 1000000000; 82 // } 83 // 84 // 85 message Duration { 86 87 // Signed seconds of the span of time. Must be from -315,576,000,000 88 // to +315,576,000,000 inclusive. 89 int64 seconds = 1; 90 91 // Signed fractions of a second at nanosecond resolution of the span 92 // of time. Durations less than one second are represented with a 0 93 // `seconds` field and a positive or negative `nanos` field. For durations 94 // of one second or more, a non-zero value for the `nanos` field must be 95 // of the same sign as the `seconds` field. Must be from -999,999,999 96 // to +999,999,999 inclusive. 97 int32 nanos = 2; 98 } 99
