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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GOOGLE_PROTOBUF_UTIL_TIME_UTIL_H__
+#define GOOGLE_PROTOBUF_UTIL_TIME_UTIL_H__
+
+#include <ctime>
+#include <ostream>
+#include <string>
+#ifdef _MSC_VER
+#include <winsock2.h>
+#else
+#include <sys/time.h>
+#endif
+
+#include <google/protobuf/duration.pb.h>
+#include <google/protobuf/timestamp.pb.h>
+
+namespace google {
+namespace protobuf {
+namespace util {
+
+class LIBPROTOBUF_EXPORT TimeUtil {
+ typedef google::protobuf::Timestamp Timestamp;
+ typedef google::protobuf::Duration Duration;
+
+ public:
+ // The min/max Timestamp/Duration values we support.
+ //
+ // For "0001-01-01T00:00:00Z".
+ static const int64 kTimestampMinSeconds = -62135596800LL;
+ // For "9999-12-31T23:59:59.999999999Z".
+ static const int64 kTimestampMaxSeconds = 253402300799LL;
+ static const int64 kDurationMinSeconds = -315576000000LL;
+ static const int64 kDurationMaxSeconds = 315576000000LL;
+
+ // Converts Timestamp to/from RFC 3339 date string format.
+ // Generated output will always be Z-normalized and uses 3, 6 or 9
+ // fractional digits as required to represent the exact time. When
+ // parsing, any fractional digits (or none) and any offset are
+ // accepted as long as they fit into nano-seconds precision.
+ // Note that Timestamp can only represent time from
+ // 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. Converting
+ // a Timestamp outside of this range is undefined behavior.
+ // See https://www.ietf.org/rfc/rfc3339.txt
+ //
+ // Example of generated format:
+ // "1972-01-01T10:00:20.021Z"
+ //
+ // Example of accepted format:
+ // "1972-01-01T10:00:20.021-05:00"
+ static string ToString(const Timestamp& timestamp);
+ static bool FromString(const string& value, Timestamp* timestamp);
+
+ // Converts Duration to/from string format. The string format will contains
+ // 3, 6, or 9 fractional digits depending on the precision required to
+ // represent the exact Duration value. For example:
+ // "1s", "1.010s", "1.000000100s", "-3.100s"
+ // The range that can be represented by Duration is from -315,576,000,000
+ // to +315,576,000,000 inclusive (in seconds).
+ static string ToString(const Duration& duration);
+ static bool FromString(const string& value, Duration* timestamp);
+
+#ifdef GetCurrentTime
+#undef GetCurrentTime // Visual Studio has macro GetCurrentTime
+#endif
+ // Gets the current UTC time.
+ static Timestamp GetCurrentTime();
+ // Returns the Time representing "1970-01-01 00:00:00".
+ static Timestamp GetEpoch();
+
+ // Converts between Duration and integer types. The behavior is undefined if
+ // the input value is not in the valid range of Duration.
+ static Duration NanosecondsToDuration(int64 nanos);
+ static Duration MicrosecondsToDuration(int64 micros);
+ static Duration MillisecondsToDuration(int64 millis);
+ static Duration SecondsToDuration(int64 seconds);
+ static Duration MinutesToDuration(int64 minutes);
+ static Duration HoursToDuration(int64 hours);
+ // Result will be truncated towards zero. For example, "-1.5s" will be
+ // truncated to "-1s", and "1.5s" to "1s" when converting to seconds.
+ // It's undefined behavior if the input duration is not valid or the result
+ // exceeds the range of int64. A duration is not valid if it's not in the
+ // valid range of Duration, or have an invalid nanos value (i.e., larger
+ // than 999999999, less than -999999999, or have a different sign from the
+ // seconds part).
+ static int64 DurationToNanoseconds(const Duration& duration);
+ static int64 DurationToMicroseconds(const Duration& duration);
+ static int64 DurationToMilliseconds(const Duration& duration);
+ static int64 DurationToSeconds(const Duration& duration);
+ static int64 DurationToMinutes(const Duration& duration);
+ static int64 DurationToHours(const Duration& duration);
+ // Creates Timestamp from integer types. The integer value indicates the
+ // time elapsed from Epoch time. The behavior is undefined if the input
+ // value is not in the valid range of Timestamp.
+ static Timestamp NanosecondsToTimestamp(int64 nanos);
+ static Timestamp MicrosecondsToTimestamp(int64 micros);
+ static Timestamp MillisecondsToTimestamp(int64 millis);
+ static Timestamp SecondsToTimestamp(int64 seconds);
+ // Result will be truncated down to the nearest integer value. For example,
+ // with "1969-12-31T23:59:59.9Z", TimestampToMilliseconds() returns -100
+ // and TimestampToSeconds() returns -1. It's undefined behavior if the input
+ // Timestamp is not valid (i.e., its seconds part or nanos part does not fall
+ // in the valid range) or the return value doesn't fit into int64.
+ static int64 TimestampToNanoseconds(const Timestamp& timestamp);
+ static int64 TimestampToMicroseconds(const Timestamp& timestamp);
+ static int64 TimestampToMilliseconds(const Timestamp& timestamp);
+ static int64 TimestampToSeconds(const Timestamp& timestamp);
+
+ // Conversion to/from other time/date types. Note that these types may
+ // have a different precision and time range from Timestamp/Duration.
+ // When converting to a lower precision type, the value will be truncated
+ // to the nearest value that can be represented. If the value is
+ // out of the range of the result type, the return value is undefined.
+ //
+ // Conversion to/from time_t
+ static Timestamp TimeTToTimestamp(time_t value);
+ static time_t TimestampToTimeT(const Timestamp& value);
+
+ // Conversion to/from timeval
+ static Timestamp TimevalToTimestamp(const timeval& value);
+ static timeval TimestampToTimeval(const Timestamp& value);
+ static Duration TimevalToDuration(const timeval& value);
+ static timeval DurationToTimeval(const Duration& value);
+};
+
+} // namespace util
+} // namespace protobuf
+
+
+namespace protobuf {
+// Overloaded operators for Duration.
+//
+// Assignment operators.
+LIBPROTOBUF_EXPORT Duration& operator+=(Duration& d1, const Duration& d2); // NOLINT
+LIBPROTOBUF_EXPORT Duration& operator-=(Duration& d1, const Duration& d2); // NOLINT
+LIBPROTOBUF_EXPORT Duration& operator*=(Duration& d, int64 r); // NOLINT
+LIBPROTOBUF_EXPORT Duration& operator*=(Duration& d, double r); // NOLINT
+LIBPROTOBUF_EXPORT Duration& operator/=(Duration& d, int64 r); // NOLINT
+LIBPROTOBUF_EXPORT Duration& operator/=(Duration& d, double r); // NOLINT
+// Overload for other integer types.
+template <typename T>
+Duration& operator*=(Duration& d, T r) { // NOLINT
+ int64 x = r;
+ return d *= x;
+}
+template <typename T>
+Duration& operator/=(Duration& d, T r) { // NOLINT
+ int64 x = r;
+ return d /= x;
+}
+LIBPROTOBUF_EXPORT Duration& operator%=(Duration& d1, const Duration& d2); // NOLINT
+// Relational operators.
+inline bool operator<(const Duration& d1, const Duration& d2) {
+ if (d1.seconds() == d2.seconds()) {
+ return d1.nanos() < d2.nanos();
+ }
+ return d1.seconds() < d2.seconds();
+}
+inline bool operator>(const Duration& d1, const Duration& d2) {
+ return d2 < d1;
+}
+inline bool operator>=(const Duration& d1, const Duration& d2) {
+ return !(d1 < d2);
+}
+inline bool operator<=(const Duration& d1, const Duration& d2) {
+ return !(d2 < d1);
+}
+inline bool operator==(const Duration& d1, const Duration& d2) {
+ return d1.seconds() == d2.seconds() && d1.nanos() == d2.nanos();
+}
+inline bool operator!=(const Duration& d1, const Duration& d2) {
+ return !(d1 == d2);
+}
+// Additive operators
+inline Duration operator-(const Duration& d) {
+ Duration result;
+ result.set_seconds(-d.seconds());
+ result.set_nanos(-d.nanos());
+ return result;
+}
+inline Duration operator+(const Duration& d1, const Duration& d2) {
+ Duration result = d1;
+ return result += d2;
+}
+inline Duration operator-(const Duration& d1, const Duration& d2) {
+ Duration result = d1;
+ return result -= d2;
+}
+// Multiplicative operators
+template<typename T>
+inline Duration operator*(Duration d, T r) {
+ return d *= r;
+}
+template<typename T>
+inline Duration operator*(T r, Duration d) {
+ return d *= r;
+}
+template<typename T>
+inline Duration operator/(Duration d, T r) {
+ return d /= r;
+}
+LIBPROTOBUF_EXPORT int64 operator/(const Duration& d1, const Duration& d2);
+
+inline Duration operator%(const Duration& d1, const Duration& d2) {
+ Duration result = d1;
+ return result %= d2;
+}
+
+inline ostream& operator<<(ostream& out, const Duration& d) {
+ out << google::protobuf::util::TimeUtil::ToString(d);
+ return out;
+}
+
+// Overloaded operators for Timestamp
+//
+// Assignement operators.
+LIBPROTOBUF_EXPORT Timestamp& operator+=(Timestamp& t, const Duration& d); // NOLINT
+LIBPROTOBUF_EXPORT Timestamp& operator-=(Timestamp& t, const Duration& d); // NOLINT
+// Relational operators.
+inline bool operator<(const Timestamp& t1, const Timestamp& t2) {
+ if (t1.seconds() == t2.seconds()) {
+ return t1.nanos() < t2.nanos();
+ }
+ return t1.seconds() < t2.seconds();
+}
+inline bool operator>(const Timestamp& t1, const Timestamp& t2) {
+ return t2 < t1;
+}
+inline bool operator>=(const Timestamp& t1, const Timestamp& t2) {
+ return !(t1 < t2);
+}
+inline bool operator<=(const Timestamp& t1, const Timestamp& t2) {
+ return !(t2 < t1);
+}
+inline bool operator==(const Timestamp& t1, const Timestamp& t2) {
+ return t1.seconds() == t2.seconds() && t1.nanos() == t2.nanos();
+}
+inline bool operator!=(const Timestamp& t1, const Timestamp& t2) {
+ return !(t1 == t2);
+}
+// Additive operators.
+inline Timestamp operator+(const Timestamp& t, const Duration& d) {
+ Timestamp result = t;
+ return result += d;
+}
+inline Timestamp operator+(const Duration& d, const Timestamp& t) {
+ Timestamp result = t;
+ return result += d;
+}
+inline Timestamp operator-(const Timestamp& t, const Duration& d) {
+ Timestamp result = t;
+ return result -= d;
+}
+LIBPROTOBUF_EXPORT Duration operator-(const Timestamp& t1, const Timestamp& t2);
+
+inline ostream& operator<<(ostream& out, const Timestamp& t) {
+ out << google::protobuf::util::TimeUtil::ToString(t);
+ return out;
+}
+
+} // namespace protobuf
+
+
+} // namespace google
+#endif // GOOGLE_PROTOBUF_UTIL_TIME_UTIL_H__