Method enqueueBarrierWithWaitList

include/internal/CL/cl.hpp:6273–6290

* A synchronization point that enqueues a barrier operation. * * Enqueues a barrier command which waits for either a list of events to complete, * or if the list is empty it waits for all commands previously enqueued in command_queue * to complete before it completes. This command blocks command execution, that is, any * following commands enqueued after it do not execu

     * before this command to command_queue, have completed.
     */
    cl_int enqueueBarrierWithWaitList(
        const VECTOR_CLASS<Event> *events = 0,
        Event *event = 0)
    {
        cl_event tmp;
        cl_int err = detail::errHandler(
            ::clEnqueueBarrierWithWaitList(
                object_,
                (events != NULL) ? (cl_uint) events->size() : 0,
                (events != NULL && events->size() > 0) ? (cl_event*) &events->front() : NULL,
                (event != NULL) ? &tmp : NULL),
            __ENQUEUE_BARRIER_WAIT_LIST_ERR);

        if (event != NULL && err == CL_SUCCESS)
            *event = tmp;

        return err;
    }
    
    /**
     * Enqueues a command to indicate with which device a set of memory objects