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Code Issues Releases Wiki Activity

ircd::util::callbacks: Add a callback convenience template.

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This commit is contained in:
Jason Volk 2019-08-03 17:42:21 -07:00
parent 7192a75ac5
commit 2d83f2c201
1 changed files with 30 additions and 0 deletions
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30
include/ircd/util/callbacks.h
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@ -39,7 +39,9 @@ template<class prototype>
struct ircd::util::callbacks<prototype, true>
:std::list<std::function<prototype>>
{
struct callback;
using proto_type = prototype;
using list_type = std::list<std::function<prototype>>;
template<class... args>
void operator()(args&&... a) const
@ -59,7 +61,9 @@ template<class prototype>
struct ircd::util::callbacks<prototype, false>
:std::list<std::function<prototype>>
{
struct callback;
using proto_type = prototype;
using list_type = std::list<std::function<prototype>>;
template<class... args>
void operator()(args&&... a) const
@ -81,3 +85,29 @@ struct ircd::util::callbacks<prototype, false>
callbacks &operator=(callbacks &&) = default;
callbacks &operator=(const callbacks &) = delete;
};
template<class prototype>
struct ircd::util::callbacks<prototype, true>::callback
:util::unique_iterator<list_type>
{
template<class function>
callback(callbacks &c, function&& f)
:util::unique_iterator<list_type>
{
c, c.emplace(end(c), std::forward<function>(f))
}
{}
};
template<class prototype>
struct ircd::util::callbacks<prototype, false>::callback
:util::unique_iterator<list_type>
{
template<class function>
callback(callbacks &c, function&& f)
:util::unique_iterator<list_type>
{
c, c.emplace(end(c), std::forward<function>(f))
}
{}
};