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freebsd/contrib/kyua/utils/datetime.hpp
Brooks Davis b0d29bc47d Import the kyua test framework.
Having kyua in the base system will simplify automated testing in CI and
eliminates bootstrapping issues on new platforms.

The build of kyua is controlled by WITH(OUT)_TESTS_SUPPORT.

Reviewed by:	emaste
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24103
2020-03-23 19:01:23 +00:00

141 lines
4.6 KiB
C++

// Copyright 2010 The Kyua Authors.
// All rights reserved.
//
// 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.
/// \file utils/datetime.hpp
/// Provides date and time-related classes and functions.
#if !defined(UTILS_DATETIME_HPP)
#define UTILS_DATETIME_HPP
#include "utils/datetime_fwd.hpp"
extern "C" {
#include <stdint.h>
}
#include <cstddef>
#include <memory>
#include <ostream>
#include <string>
namespace utils {
namespace datetime {
/// Represents a time delta to describe deadlines.
///
/// Because we use this class to handle deadlines, we currently do not support
/// negative deltas.
class delta {
public:
/// The amount of seconds in the time delta.
int64_t seconds;
/// The amount of microseconds in the time delta.
unsigned long useconds;
delta(void);
delta(const int64_t, const unsigned long);
static delta from_microseconds(const int64_t);
int64_t to_microseconds(void) const;
bool operator==(const delta&) const;
bool operator!=(const delta&) const;
bool operator<(const delta&) const;
bool operator<=(const delta&) const;
bool operator>(const delta&) const;
bool operator>=(const delta&) const;
delta operator+(const delta&) const;
delta& operator+=(const delta&);
// operator- and operator-= do not exist because we do not support negative
// deltas. See class docstring.
delta operator*(const std::size_t) const;
delta& operator*=(const std::size_t);
};
std::ostream& operator<<(std::ostream&, const delta&);
/// Represents a fixed date/time.
///
/// Timestamps are immutable objects and therefore we can simply use a shared
/// pointer to hide the implementation type of the date. By not using an auto
/// pointer, we don't have to worry about providing our own copy constructor and
/// assignment opertor.
class timestamp {
struct impl;
/// Pointer to the shared internal implementation.
std::shared_ptr< impl > _pimpl;
timestamp(std::shared_ptr< impl >);
public:
static timestamp from_microseconds(const int64_t);
static timestamp from_values(const int, const int, const int,
const int, const int, const int,
const int);
static timestamp now(void);
std::string strftime(const std::string&) const;
std::string to_iso8601_in_utc(void) const;
int64_t to_microseconds(void) const;
int64_t to_seconds(void) const;
bool operator==(const timestamp&) const;
bool operator!=(const timestamp&) const;
bool operator<(const timestamp&) const;
bool operator<=(const timestamp&) const;
bool operator>(const timestamp&) const;
bool operator>=(const timestamp&) const;
timestamp operator+(const delta&) const;
timestamp& operator+=(const delta&);
timestamp operator-(const delta&) const;
timestamp& operator-=(const delta&);
delta operator-(const timestamp&) const;
};
std::ostream& operator<<(std::ostream&, const timestamp&);
void set_mock_now(const int, const int, const int, const int, const int,
const int, const int);
void set_mock_now(const timestamp&);
} // namespace datetime
} // namespace utils
#endif // !defined(UTILS_DATETIME_HPP)