The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2004
Filed:
Sep. 29, 2000
Andrew Ian Hickson, West Wellow, GB;
Richard Scott Maxwell, Romsey, GB;
Timothy Steven Raff, Fordingbridge, GB;
David Ware, Downton, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided are a method, computer program product and data processing apparatus for recovery from interprocess communication failures, the method comprising: in response to an initiator process requesting interprocess communication (IPC) with a responder process via an IPC link, recognizing if the initiator process does not have the expected write control of the IPC link and setting an indicator. A process other than the initiator process checks the indicator (such as after a timeout, or periodically) and, if the indicator has been set, notifies the initiator process to take control. This method avoids potential stalemate situations in which neither the initiator nor the responder process can take control, without reliance on mutex locks for every exchange of data and control.