Roland Conybeare
28b6d457c0
git-subtree-dir: xo-reactor git-subtree-mainline:dd1a6b1afcgit-subtree-split:e3a53d10e6
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/* @file EventTimeFn.hpp */
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#pragma once
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//#include "time/Time.hpp"
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#include "xo/indentlog/timeutil/timeutil.hpp"
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#include <concepts>
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namespace xo {
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namespace reactor {
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template <typename Event, typename EventTimeFn>
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concept EventTimeConcept = requires(EventTimeFn etfn, Event ev) {
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{ etfn(ev) } -> std::same_as<xo::time::utc_nanos>;
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};
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template<typename Event>
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class StructEventTimeFn {
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public:
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using event_t = Event;
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using utc_nanos = xo::time::utc_nanos;
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public:
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utc_nanos operator()(Event const & ev) const { return ev.tm(); }
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}; /*StructEventTimeFn*/
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template<typename Event>
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class PtrEventTimeFn {
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public:
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using event_t = Event;
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using utc_nanos = xo::time::utc_nanos;
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public:
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utc_nanos operator()(Event const & ev) const { return ev->tm(); }
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}; /*PtrEventTimeFn*/
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template<typename T>
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class PairEventTimeFn {
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public:
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using utc_nanos = xo::time::utc_nanos;
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using event_t = std::pair<utc_nanos, T>;
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public:
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utc_nanos operator()(event_t const & ev) const { return ev.first; }
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}; /*PairEventTimeFn*/
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} /*namespace reactor*/
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} /*namespace xo*/
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/* end EventTimeFn.hpp */
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