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.. -*- coding: utf-8; mode: rst -*-
.. _DMX_GET_EVENT:
=============
DMX_GET_EVENT
=============
Name
----
DMX_GET_EVENT
Synopsis
--------
.. c:function:: int ioctl( int fd, DMX_GET_EVENT, struct dmx_event *ev)
:name: DMX_GET_EVENT
Arguments
---------
``fd``
File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
``ev``
Pointer to the location where the event is to be stored.
Description
-----------
This ioctl call returns an event if available. If an event is not
available, the behavior depends on whether the device is in blocking or
non-blocking mode. In the latter case, the call fails immediately with
errno set to ``EWOULDBLOCK``. In the former case, the call blocks until an
event becomes available.
Return Value
------------
On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``EWOULDBLOCK``
- There is no event pending, and the device is in non-blocking mode.
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