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pcntl_setcpuaffinity

(PHP 8 >= 8.4.0)

pcntl_setcpuaffinity — Set the cpu affinity of a process

说明

pcntl_setcpuaffinity(?int $pid = null, array $hmask = ?): bool

Sets the cpu affinity for the pid with the cpu affinity mask given by hmask.

参数

pid
If null, the current process ID is used.
hmask
The cpu affinity mask comprised of one or more cpu id for binding the process to.

返回值

成功时返回 true， 或者在失败时返回 false。

警告

此函数可能返回布尔值 false，但也可能返回等同于 false 的非布尔值。请阅读 布尔类型章节以获取更多信息。应使用 === 运算符来测试此函数的返回值。

错误／异常

A TypeError is thrown if one of the cpu id from the hmask is invalid. A ValueError is thrown if pid is an invalid process id or the cpu mask had failed to be created.

参见