Method for adaptively building a library of program threads

Claim 1

A computer implemented method for building in a memory a library of program threads that specify an execution environment for an application program in response to a thread-type application program work request in a multi-tasking computer operating system in which the operating system establishes said program threads in response to said application program work request wherein each of said program threads has a respective identifier that identifies each program thread maintained in said memory and identifies a state of each program thread maintained in said memory as idle or busy; the method comprising the steps of: searching said memory for an identifier of a corresponding idle program thread in response to said thread-type application program request; constructing by means of an application program interface routine within the operating system, a corresponding program thread in response to said corresponding program thread not residing in said memory in an idle state; storing said corresponding program thread, constructed in said previous constructing step in said memory, in an idle state with a respective identifier, after said application program work request has been executed by said computer; executing said application program work request with said corresponding idle thread, stored in said memory when said searching step locates the corresponding idles thread; and repeating the steps of constructing and storing said thread and respective identifier, when said searching step fails to locate an idle program thread whereby said memory stores multiple copies of said corresponding program thread, depending upon the frequency with which said thread-type application work request is requested.