proton-c/bindings/cpp/include/proton/duration.hpp

#ifndef PROTON_CPP_DURATION_H
#define PROTON_CPP_DURATION_H

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 *
 */

#include "proton/export.hpp"
#include "proton/types.hpp"
#include "proton/comparable.hpp"

namespace proton {

/// A span of time in milliseconds.
class duration : public comparable<duration> {
  public:
    /// @cond INTERNAL
    /// XXX public and mutable?
    uint64_t milliseconds;
    /// @endcond

    /// Create a duration.
    explicit duration(uint64_t ms = 0) : milliseconds(ms) {}

    PN_CPP_EXTERN static const duration FOREVER;   ///< Wait for ever
    PN_CPP_EXTERN static const duration IMMEDIATE; ///< Don't wait at all
    PN_CPP_EXTERN static const duration SECOND;    ///< One second
    PN_CPP_EXTERN static const duration MINUTE;    ///< One minute
};

inline bool operator<(duration x, duration y) { return x.milliseconds < y.milliseconds; }
inline bool operator==(duration x, duration y) { return x.milliseconds == y.milliseconds; }

inline duration operator*(duration d, amqp_ulong n) { return duration(d.milliseconds*n); }
inline duration operator*(amqp_ulong n, duration d) { return d * n; }

inline amqp_timestamp operator+(amqp_timestamp ts, duration d) { return amqp_timestamp(ts.milliseconds+d.milliseconds); }
inline amqp_timestamp operator+(duration d, amqp_timestamp ts) { return ts + d; }

}

#endif // PROTON_CPP_DURATION_H