clWaitForEvents
Waits on the host thread for commands identified by event objects to complete.
Parameters
-
event_list
-
The events specified in event_list
act as synchronization points.
Notes
Waits on the host thread for commands identified by event objects in
event_list
to complete. A command is considered complete if its
execution status is CL_COMPLETE
or a negative value. The events
specified in event_list
act as synchronization points.
If the
cl_khr_gl_event extension
is enabled, event objects can also be used to reflect the status of an OpenGL sync
object. The sync object in turn refers to a fence command executing in an OpenGL
command stream. This provides another method of coordinating sharing of buffers and
images between OpenGL and OpenCL.
Errors
Returns CL_SUCCESS if the execution status of all
events in event_list
is CL_COMPLETE.
Otherwise, it returns one of the following errors:
- CL_INVALID_VALUE if
num_events
is zero
or event_list
is NULL..
- CL_INVALID_CONTEXT if events specified in
event_list
do not belong to the same context.
- CL_INVALID_EVENT if event objects specified in
event_list
are not valid event objects.
- CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST if the
execution status of any of the events in
event_list
is a
negative integer value.
- CL_OUT_OF_RESOURCES if there is a failure to allocate
resources required by the OpenCL implementation on the device.
- CL_OUT_OF_HOST_MEMORY if there is a failure to allocate
resources required by the OpenCL implementation on the host.

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