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79 lines
2.8 KiB
79 lines
2.8 KiB
// Copyright (c) 2015, Google Inc. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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syntax = "proto3"; |
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option javanano_use_deprecated_package = true; |
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package google.protobuf; |
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option java_generate_equals_and_hash = true; |
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option java_multiple_files = true; |
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option java_outer_classname = "DurationProto"; |
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option java_package = "com.google.protobuf"; |
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// A Duration represents a signed, fixed-length span of time represented |
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// as a count of seconds and fractions of seconds at nanosecond |
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// resolution. It is independent of any calendar and concepts like "day" |
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// or "month". It is related to Timestamp in that the difference between |
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// two Timestamp values is a Duration and it can be added or subtracted |
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// from a Timestamp. Range is approximately +-10,000 years. |
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// |
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// Example 1: Compute Duration from two Timestamps in pseudo code. |
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// |
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// Timestamp start = ...; |
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// Timestamp end = ...; |
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// Duration duration = ...; |
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// |
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// duration.seconds = end.seconds - start.seconds; |
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// duration.nanos = end.nanos - start.nanos; |
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// |
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// if (duration.seconds < 0 && duration.nanos > 0) { |
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// duration.seconds += 1; |
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// duration.nanos -= 1000000000; |
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// } else if (durations.seconds > 0 && duration.nanos < 0) { |
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// duration.seconds -= 1; |
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// duration.nanos += 1000000000; |
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// } |
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// |
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// Example 2: Compute Timestamp from Timestamp + Duration in pseudo code. |
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// |
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// Timestamp start = ...; |
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// Duration duration = ...; |
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// Timestamp end = ...; |
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// |
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// end.seconds = start.seconds + duration.seconds; |
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// end.nanos = start.nanos + duration.nanos; |
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// |
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// if (end.nanos < 0) { |
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// end.seconds -= 1; |
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// end.nanos += 1000000000; |
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// } else if (end.nanos >= 1000000000) { |
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// end.seconds += 1; |
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// end.nanos -= 1000000000; |
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// } |
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// |
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message Duration { |
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// Signed seconds of the span of time. Must be from -315,576,000,000 |
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// to +315,576,000,000 inclusive. |
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int64 seconds = 1; |
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// Signed fractions of a second at nanosecond resolution of the span |
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// of time. Durations less than one second are represented with a 0 |
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// `seconds` field and a positive or negative `nanos` field. For durations |
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// of one second or more, a non-zero value for the `nanos` field must be |
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// of the same sign as the `seconds` field. Must be from -999,999,999 |
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// to +999,999,999 inclusive. |
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int32 nanos = 2; |
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}
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