| 摘要 |
<p>Data processing apparatus is described in which data items are communicated via data links between separate functional elements forming part of the apparatus. The elements may be, for example, separate address spaces or regions running under a single operating system, or separate operating systems running on separate, but linked, data processors, comprising means for holding a link acquisition request in a stack at the requesting element if the requested link is in use, condition handling means, and means for determining whether the stack has reached a predetermined size, whereupon control is passed to the condition handling means for determining subsequent operation. <IMAGE></p> |
