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