Specify
use_awaitable_t
as the
default completion token type.
typedef use_awaitable_t default_completion_token_type;
Name |
Description |
---|---|
Adapts an executor to add the use_awaitable_t completion token as the default. |
Name |
Description |
---|---|
as_default_on [static] |
Function helper to adapt an I/O object to use use_awaitable_t as its default completion token type. |
use_awaitable_t [constructor] |
Default constructor. |
The use_awaitable_t
class,
with its value use_awaitable
,
is used to represent the currently executing coroutine. This completion
token may be passed as a handler to an asynchronous operation. For example:
awaitable<void> my_coroutine() { std::size_t n = co_await my_socket.async_read_some(buffer, use_awaitable); ... }
When used with co_await, the initiating function (async_read_some
in the above example) suspends the current coroutine. The coroutine is
resumed when the asynchronous operation completes, and the result of the
operation is returned.
Header: asio/use_awaitable.hpp
Convenience header: asio.hpp