Method and apparatus for allowing restarted programs to use...

Details Method and apparatus for allowing restarted programs to use... Method and apparatus for allowing restarted programs to use...

2006-08-10

2009-02-03

Suryawanshi, Suresh K (Department: 2115)

Electrical computers and digital processing systems: support

Reconfiguration

C714S013000, C718S001000

Reexamination Certificate

active

07487347

ABSTRACT:
A data processing system allows processes to be checkpointed and restarted. The system saves the old process and thread identifications in a process table. When an application makes a system cell passing the old process and/or thread identifications as parameters, the system performs a mapping algorithm to supply the system call with the new process and/or thread identifications. When a system call returns a new identification, the system performs a remapping algorithm to return the old identifications to the calling application program. When a group of process is restarted for which the process group leader was not checkpointed, the system creates a ghost process group leader.

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