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/*
* Copyright 2018 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_TIMESTAMP_H_
#define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_TIMESTAMP_H_
#include <stdint.h>
namespace firebase {
namespace firestore {
namespace model {
/**
* A Timestamp represents an absolute time from the backend at up to nanosecond
* precision. A Timestamp is always UTC.
*/
class Timestamp {
public:
/**
* Creates a new timestamp with seconds and nanos set to 0.
*
* PORTING NOTE: This does NOT set to current timestamp by default. To get the
* current timestamp, call Timestamp::Now().
*/
Timestamp();
/**
* Creates a new timestamp.
*
* @param seconds the number of seconds since epoch.
* @param nanos the number of nanoseconds after the seconds.
*/
Timestamp(long seconds, int nanos);
/** Returns a timestamp with the current date / time. */
static Timestamp Now();
long seconds() const {
return seconds_;
}
int nanos() const {
return nanos_;
}
private:
long seconds_;
int nanos_;
};
/** Compares against another Timestamp. */
inline bool operator<(const Timestamp& lhs, const Timestamp& rhs) {
return lhs.seconds() < rhs.seconds() ||
(lhs.seconds() == rhs.seconds() && lhs.nanos() < rhs.nanos());
}
inline bool operator>(const Timestamp& lhs, const Timestamp& rhs) {
return rhs < lhs;
}
inline bool operator>=(const Timestamp& lhs, const Timestamp& rhs) {
return !(lhs < rhs);
}
inline bool operator<=(const Timestamp& lhs, const Timestamp& rhs) {
return !(lhs > rhs);
}
inline bool operator!=(const Timestamp& lhs, const Timestamp& rhs) {
return lhs < rhs || lhs > rhs;
}
inline bool operator==(const Timestamp& lhs, const Timestamp& rhs) {
return !(lhs != rhs);
}
} // namespace model
} // namespace firestore
} // namespace firebase
#endif // FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_FIELD_VALUE_H_
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