One-time initialization

Details One-time initialization One-time initialization

2011-06-14

2011-06-14

An, Meng-Ai (Department: 2195)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

Reexamination Certificate

active

07962912

ABSTRACT:
Aspects of the present invention are directed at providing safe and efficient ways for a program to perform a one-time initialization of a data item in a multi-threaded environment. In accordance with one embodiment, a method is provided that allows a program to perform a synchronized initialization of a data item that may be accessed by multiple threads. More specifically, the method includes receiving a request to initialize the data item from a current thread. In response to receiving the request, the method determines whether the current thread is the first thread to attempt to initialize the data item. If the current thread is the first thread to attempt to initialize the data item, the method enforces mutual exclusion and blocks other attempts to initialize the data item made by concurrent threads. Then, the current thread is allowed to execute program code provided by the program to initialize the data item.

REFERENCES:
patent: 5852731 (1998-12-01), Wang et al.
patent: 5943689 (1999-08-01), Tamer
patent: 6567893 (2003-05-01), Challenger et al.
patent: 7729816 (2010-06-01), Josselson

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