mirror of
https://github.com/matrix-construct/construct
synced 2024-11-29 18:22:50 +01:00
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_TIMEDATE_H
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namespace ircd
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{
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using high_resolution_point = time_point<high_resolution_clock>;
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using steady_point = time_point<steady_clock>;
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using system_point = time_point<system_clock>;
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using microtime_t = std::pair<time_t, int32_t>;
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IRCD_OVERLOAD(localtime)
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// Standard time_point samples
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template<class unit = seconds> unit now();
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template<> steady_point now();
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template<> system_point now();
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// Standard time_point (system_clock only) directly into long integer.
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template<class unit = seconds> time_t &time(time_t &ref);
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template<class unit = seconds> time_t time();
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template<class unit = seconds> time_t time(time_t *const &ptr);
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// System vdso microtime suite
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microtime_t microtime();
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string_view microtime(const mutable_buffer &);
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// System vdso formatted time suite
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extern const char *const rfc7231_fmt;
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string_view timef(const mutable_buffer &out, const struct tm &tm, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, const time_t &epoch, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, const time_t &epoch, localtime_t, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, const system_point &epoch, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, const system_point &epoch, localtime_t, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, localtime_t, const char *const &fmt = rfc7231_fmt);
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string_view timef(const mutable_buffer &out, const char *const &fmt = rfc7231_fmt);
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template<size_t max = 128, class... args> std::string timestr(args&&...);
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// Other tools
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string_view smalldate(const mutable_buffer &buf, const time_t <ime);
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// Interface conveniences.
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std::ostream &operator<<(std::ostream &, const microtime_t &);
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std::ostream &operator<<(std::ostream &, const system_point &);
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template<class rep, class period> std::ostream &operator<<(std::ostream &, const duration<rep, period> &);
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}
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template<class rep,
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class period>
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std::ostream &
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ircd::operator<<(std::ostream &s,
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const duration<rep, period> &duration)
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{
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s << duration.count();
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return s;
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}
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/// timestr() is a passthru to timef() where you don't give the first argument
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/// (the mutable_buffer). Instead of supplying a buffer an allocated
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/// std::string is returned with the result. By default this string's buffer
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/// is sufficiently large, but may be further tuned in the template parameter.
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template<size_t max,
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class... args>
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std::string
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ircd::timestr(args&&... a)
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{
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return string(max, [&](const mutable_buffer &buf)
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{
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return timef(buf, std::forward<args>(a)...);
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});
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}
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template<class unit>
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time_t
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ircd::time(time_t *const &ptr)
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{
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time_t buf, &ret{ptr? *ptr : buf};
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return time<unit>(ret);
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}
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template<class unit>
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time_t
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ircd::time()
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{
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time_t ret;
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return time<unit>(ret);
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}
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template<class unit>
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time_t &
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ircd::time(time_t &ref)
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{
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ref = duration_cast<unit>(system_clock::now().time_since_epoch()).count();
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return ref;
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}
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template<>
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inline ircd::system_point
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ircd::now()
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{
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return system_clock::now();
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}
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template<>
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inline ircd::steady_point
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ircd::now()
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{
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return steady_clock::now();
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}
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template<class unit>
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unit
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ircd::now()
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{
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const auto now
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{
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steady_clock::now()
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};
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const auto tse
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{
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now.time_since_epoch()
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};
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return std::chrono::duration_cast<unit>(tse);
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}
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