141 lines
4.6 KiB
C++
141 lines
4.6 KiB
C++
// Copyright 2010 The Kyua Authors.
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// All rights reserved.
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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 copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// 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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/// \file utils/datetime.hpp
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/// Provides date and time-related classes and functions.
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#if !defined(UTILS_DATETIME_HPP)
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#define UTILS_DATETIME_HPP
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#include "utils/datetime_fwd.hpp"
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extern "C" {
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#include <stdint.h>
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}
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#include <cstddef>
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#include <memory>
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#include <ostream>
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#include <string>
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namespace utils {
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namespace datetime {
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/// Represents a time delta to describe deadlines.
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///
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/// Because we use this class to handle deadlines, we currently do not support
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/// negative deltas.
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class delta {
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public:
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/// The amount of seconds in the time delta.
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int64_t seconds;
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/// The amount of microseconds in the time delta.
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unsigned long useconds;
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delta(void);
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delta(const int64_t, const unsigned long);
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static delta from_microseconds(const int64_t);
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int64_t to_microseconds(void) const;
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bool operator==(const delta&) const;
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bool operator!=(const delta&) const;
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bool operator<(const delta&) const;
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bool operator<=(const delta&) const;
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bool operator>(const delta&) const;
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bool operator>=(const delta&) const;
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delta operator+(const delta&) const;
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delta& operator+=(const delta&);
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// operator- and operator-= do not exist because we do not support negative
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// deltas. See class docstring.
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delta operator*(const std::size_t) const;
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delta& operator*=(const std::size_t);
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};
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std::ostream& operator<<(std::ostream&, const delta&);
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/// Represents a fixed date/time.
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///
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/// Timestamps are immutable objects and therefore we can simply use a shared
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/// pointer to hide the implementation type of the date. By not using an auto
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/// pointer, we don't have to worry about providing our own copy constructor and
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/// assignment opertor.
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class timestamp {
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struct impl;
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/// Pointer to the shared internal implementation.
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std::shared_ptr< impl > _pimpl;
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timestamp(std::shared_ptr< impl >);
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public:
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static timestamp from_microseconds(const int64_t);
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static timestamp from_values(const int, const int, const int,
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const int, const int, const int,
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const int);
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static timestamp now(void);
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std::string strftime(const std::string&) const;
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std::string to_iso8601_in_utc(void) const;
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int64_t to_microseconds(void) const;
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int64_t to_seconds(void) const;
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bool operator==(const timestamp&) const;
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bool operator!=(const timestamp&) const;
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bool operator<(const timestamp&) const;
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bool operator<=(const timestamp&) const;
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bool operator>(const timestamp&) const;
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bool operator>=(const timestamp&) const;
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timestamp operator+(const delta&) const;
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timestamp& operator+=(const delta&);
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timestamp operator-(const delta&) const;
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timestamp& operator-=(const delta&);
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delta operator-(const timestamp&) const;
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};
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std::ostream& operator<<(std::ostream&, const timestamp&);
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void set_mock_now(const int, const int, const int, const int, const int,
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const int, const int);
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void set_mock_now(const timestamp&);
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} // namespace datetime
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} // namespace utils
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#endif // !defined(UTILS_DATETIME_HPP)
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