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.. _check:
:c:type:`uv_check_t` --- Check handle
=====================================
Check handles will run the given callback once per loop iteration, right
after polling for i/o.
Data types
----------
.. c:type:: uv_check_t
Check handle type.
.. c:type:: void (*uv_check_cb)(uv_check_t* handle)
Type definition for callback passed to :c:func:`uv_check_start`.
Public members
^^^^^^^^^^^^^^
N/A
.. seealso:: The :c:type:`uv_handle_t` members also apply.
API
---
.. c:function:: int uv_check_init(uv_loop_t* loop, uv_check_t* check)
Initialize the handle. This function always succeeds.
:returns: 0
.. c:function:: int uv_check_start(uv_check_t* check, uv_check_cb cb)
Start the handle with the given callback. This function always succeeds,
except when `cb` is `NULL`.
:returns: 0 on success, or `UV_EINVAL` when `cb == NULL`.
.. c:function:: int uv_check_stop(uv_check_t* check)
Stop the handle, the callback will no longer be called.
This function always succeeds.
:returns: 0
.. seealso:: The :c:type:`uv_handle_t` API functions also apply.
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