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.. _OPAL_CHECK_ASYNC_COMPLETION:
OPAL_CHECK_ASYNC_COMPLETION
===========================
:ref:`OPAL_CHECK_ASYNC_COMPLETION` checks if an async OPAL pending message was
completed. (see :ref:`opal-messages`).
.. code-block:: c
#define OPAL_CHECK_ASYNC_COMPLETION 86
int64_t opal_check_completion(uint64_t *buffer, uint64_t size, uint64_t token);
Parameters:
buffer
buffer to copy message into
size
sizeof buffer to copy message into
token
async message token
Currently unused by Linux, but it is used by FreeBSD.
Return values
-------------
:ref:`OPAL_PARAMETER`
buffer parameter is an invalid pointer (NULL or > top of RAM).
:ref:`OPAL_SUCCESS`
message successfully copied to buffer.
:ref:`OPAL_BUSY`
message is still pending and should be re-checked later.
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