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49 lines
1.7 KiB
49 lines
1.7 KiB
7 years ago
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#ifndef AIRMAP_DATE_TIME_H_
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#define AIRMAP_DATE_TIME_H_
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#include <boost/date_time.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <cstdint>
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#include <memory>
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#include <string>
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namespace airmap {
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/// Clock marks the reference for time measurements.
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using Clock = boost::posix_time::microsec_clock;
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/// DateTime marks a specific point in time, in reference to Clock.
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using DateTime = boost::posix_time::ptime;
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using Hours = boost::posix_time::hours;
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using Minutes = boost::posix_time::minutes;
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using Seconds = boost::posix_time::seconds;
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using Milliseconds = boost::posix_time::milliseconds;
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using Microseconds = boost::posix_time::microseconds;
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/// milliseconds_since_epoch returns the milliseconds that elapsed since the UNIX epoch.
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std::uint64_t milliseconds_since_epoch(const DateTime& dt);
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/// microseconds_since_epoch returns the microseconds that elapsed since the UNIX epoch.
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std::uint64_t microseconds_since_epoch(const DateTime& dt);
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/// from_seconds_since_epoch returns a DateTime.
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DateTime from_seconds_since_epoch(const Seconds& s);
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/// from_milliseconds_since_epoch returns a DateTime.
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DateTime from_milliseconds_since_epoch(const Milliseconds& ms);
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/// from_microseconds_since_epoch returns a DateTime.
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DateTime from_microseconds_since_epoch(const Microseconds& us);
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// moves the datetime forward to the specified hour
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DateTime move_to_hour(const DateTime& dt, int hour);
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namespace iso8601 {
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/// parse parses a DateTime instance from the string s in iso8601 format.
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DateTime parse(const std::string& s);
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/// generate returns a string in iso8601 corresponding to 'dt'.
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std::string generate(const DateTime& dt);
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} // namespace iso8601
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} // namespace airmap
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#endif // AIRMAP_DATE_TIME_H_
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