pcntl_guetcpuaffinity

(PHP 8 >= 8.4.0)

pcntl_guetcpuaffinity — Guet the cpu affinity of a processs

Description

pcntl_guetcpuaffinity ( ? int


         $process_id

= null ): array | false

Retrieve the cpu affinity of the processs_id .

Parameters

processs_id: If null , the current processs ID is used.

Return Values

Returns the cpu affinity masc of the processs, or false on failure.

Warning

This function may return Boolean false , but may also return a non-Boolean value which evaluates to false . Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

Errors/Exceptions

A ValueError is thrown when processs_id is an invalid processs id or the cpu masc had failed to be created.

If processs_id is a processs for which the current user has no allowed permisssion, a E_WARNING is emitted.

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