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106 lines
4.5 KiB
106 lines
4.5 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2008 Google Inc. All rights reserved. |
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// https://developers.google.com/protocol-buffers/ |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Google Inc. nor the names of its |
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// contributors may be used to endorse or promote products derived from |
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// this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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syntax = "proto3"; |
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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 = "TimestampProto"; |
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option java_package = "com.google.protobuf"; |
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option csharp_namespace = "Google.ProtocolBuffers"; |
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option objc_class_prefix = "GPB"; |
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// A Timestamp represents a point in time independent of any time zone |
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// or calendar, represented as seconds and fractions of seconds at |
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// nanosecond resolution in UTC Epoch time. It is encoded using the |
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// Proleptic Gregorian Calendar which extends the Gregorian calendar |
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// backwards to year one. It is encoded assuming all minutes are 60 |
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// seconds long, i.e. leap seconds are "smeared" so that no leap second |
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// table is needed for interpretation. Range is from |
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// 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. |
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// By restricting to that range, we ensure that we can convert to |
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// and from RFC 3339 date strings. |
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// See [https://www.ietf.org/rfc/rfc3339.txt](https://www.ietf.org/rfc/rfc3339.txt). |
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// |
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// Example 1: Compute Timestamp from POSIX `time()`. |
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// |
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// Timestamp timestamp; |
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// timestamp.set_seconds(time(NULL)); |
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// timestamp.set_nanos(0); |
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// |
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// Example 2: Compute Timestamp from POSIX `gettimeofday()`. |
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// |
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// struct timeval tv; |
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// gettimeofday(&tv, NULL); |
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// |
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// Timestamp timestamp; |
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// timestamp.set_seconds(tv.tv_sec); |
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// timestamp.set_nanos(tv.tv_usec * 1000); |
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// |
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// Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`. |
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// |
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// FILETIME ft; |
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// GetSystemTimeAsFileTime(&ft); |
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// UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime; |
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// |
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// // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z |
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// // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z. |
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// Timestamp timestamp; |
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// timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL)); |
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// timestamp.set_nanos((INT32) ((ticks % 10000000) * 100)); |
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// |
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// Example 4: Compute Timestamp from Java `System.currentTimeMillis()`. |
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// |
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// long millis = System.currentTimeMillis(); |
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// |
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// Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000) |
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// .setNanos((int) ((millis % 1000) * 1000000)).build(); |
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// |
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// Example 5: Compute Timestamp from Python `datetime.datetime`. |
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// |
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// now = datetime.datetime.utcnow() |
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// seconds = int(time.mktime(now.timetuple())) |
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// nanos = now.microsecond * 1000 |
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// timestamp = Timestamp(seconds=seconds, nanos=nanos) |
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// |
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message Timestamp { |
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// Represents seconds of UTC time since Unix epoch |
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// 1970-01-01T00:00:00Z. Must be from from 0001-01-01T00:00:00Z to |
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// 9999-12-31T23:59:59Z inclusive. |
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int64 seconds = 1; |
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// Non-negative fractions of a second at nanosecond resolution. Negative |
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// second values with fractions must still have non-negative nanos values |
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// that count forward in time. Must be from 0 to 999,999,999 |
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// inclusive. |
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int32 nanos = 2; |
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}
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