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ircd::ctx::future: Add what() exception peeking convenience to interface.

This commit is contained in:
Jason Volk 2023-04-26 19:18:00 -07:00
parent b4b26484ec
commit 91a8fcbe43
1 changed files with 4 additions and 0 deletions
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4
include/ircd/ctx/future.h
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@ -46,6 +46,8 @@ struct ircd::ctx::future
bool valid() const { return !is(state(), future_state::INVALID); }
bool operator!() const { return !valid(); }
std::exception_ptr eptr() const { return state().eptr; }
string_view what() const { return util::what(eptr()); }
explicit operator T() { return get(); }
template<class U, class time_point> friend bool wait_until(const future<U> &, const time_point &, std::nothrow_t);
@ -75,6 +77,8 @@ struct ircd::ctx::future<void>
bool valid() const { return !is(state(), future_state::INVALID); }
bool operator!() const { return !valid(); }
std::exception_ptr eptr() const { return state().eptr; }
string_view what() const { return util::what(eptr()); }
template<class U, class time_point> friend bool wait_until(const future<U> &, const time_point &, std::nothrow_t);
template<class U, class time_point> friend void wait_until(const future<U> &, const time_point &);