METHOD AND SYSTEM FOR DETECTING POTENTIAL DEADLOCKS IN COMPUTER PROGRAMS

摘要

A system and method for detecting potential deadlocks during the run-time execution of a multithreaded computer program. Requests for access to shared resources are tracked and evaluated to determine whether a present request could prove cyclical with a previous set of requests. As each request is mad e, the identity of any previously requested and unreleased resources is recorde d in a data element associated with the currently requested resource. Data elemen ts associated with the previously requested and unreleased resources are read t o assess whether they identify the currently requested resource in previously executed lock sequences, thereby indicating a potential cycle and, thus, a deadlock. In an embodiment related to locking of mutually exclusive resource s, a request is a request to lock the resource, and the resource is released by unlocking.