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| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version

## process-os-id

Arguments: process

Returns the operating system's identifier for the native thread associated with process, or `nil` if there is no current os-thread. A process that has never been enabled will have no thread and therefore return `nil` here. In a virtual threads model (non-`:os-threads`), an active process will return a non-`nil` value that will be otherwise meaningless.

See multiprocessing.htm for general information on multiprocessing.

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This page was not revised from the 10.0 page.
Created 2019.8.20.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version