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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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