blob: 022ce8612941e416953f6e0081dc18c39fc6957f [file] [log] [blame]
/* Copyright 2016 The Roughtime Authors.
*
* 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 SECURITY_ROUGHTIME_TIME_SOURCE_H_
#define SECURITY_ROUGHTIME_TIME_SOURCE_H_
#include <stdint.h>
#include <utility>
#include "protocol.h"
namespace roughtime {
// TimeSource is an interface that can provide the current time.
class TimeSource {
public:
virtual ~TimeSource() {}
// Now returns the midpoint time in epoch-microseconds and a radius of
// uncertainty.
virtual std::pair<rough_time_t, uint32_t> Now() = 0;
};
} // namespace roughtime
#endif // SECURITY_ROUGHTIME_TIME_SOURCE_H_