Create a stop_callback registering a callable built from arg.

Synopsis

Declared in <bslstl_stoptoken.h>

template<class t_ARG>
explicit
stop_callback(
    stop_token const& token,
    t_ARG&& arg,
    allocator_type const& alloc = allocator_type());

Description

If t_CALLBACK is allocator‐aware, the optionally specified alloc supplies memory; otherwise alloc is ignored. If token already refers to a stop‐requested state, invoke the callback before returning; otherwise register it with that stop state. Unlike std::stop_callback, these constructors are not currently noexcept. If token is an rvalue reference, it is unspecified whether this function moves from token.

Parameters

Name

Description

token

stop token whose stop state the callback may register with

arg

argument forwarded to construct the stored callable

alloc

allocator used when t_CALLBACK is allocator‐aware

Created with MrDocs