@napi-rs/nice

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https://linux.die.net/man/2/nice binding for Node.js

Usage

Install this test package

pnpm add @napi-rs/nice

or

yarn add @napi-rs/nice

or

npm install @napi-rs/nice

nice

On Unix, nice() adds inc to the nice value for the calling process. (A higher nice value means a low priority.) Only the superuser may specify a negative increment, or priority increase. The range for nice values is described in getpriority(2).

On Windows, it uses the SetThreadPriority function.

// on Unix
import { nice } from '@napi-rs/nice'

nice(2)

// on Windows
import { nice, WindowsThreadPriority } from '@napi-rs/nice'

nice(WindowsThreadPriority.THREAD_PRIORITY_ABOVE_NORMAL)

getCurrentProcessPriority

This function gets the priority of the current process. On Unix, it uses the getpriority(2).

On Windows, it uses the GetThreadPriority function.

| Priority Constant | Value | Description | | ----------------------------- | ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | THREAD_MODE_BACKGROUND_BEGIN | 0x00010000 | Begin background processing mode. The system lowers the resource scheduling priorities of the thread so that it can perform background work without significantly affecting activity in the foreground. | | | | This value can be specified only if hThread is a handle to the current thread. The function fails if the thread is already in background processing mode. | | | | Windows Server 2003: This value is not supported. | | THREAD_MODE_BACKGROUND_END | 0x00020000 | End background processing mode. The system restores the resource scheduling priorities of the thread as they were before the thread entered background processing mode. | | | | This value can be specified only if hThread is a handle to the current thread. The function fails if the thread is not in background processing mode. | | | | Windows Server 2003: This value is not supported. | | THREAD_PRIORITY_ABOVE_NORMAL | 1 | Priority 1 point above the priority class. | | THREAD_PRIORITY_BELOW_NORMAL | -1 | Priority 1 point below the priority class. | | THREAD_PRIORITY_HIGHEST | 2 | Priority 2 points above the priority class. | | THREAD_PRIORITY_IDLE | -15 | Base priority of 1 for IDLE_PRIORITY_CLASS, BELOW_NORMAL_PRIORITY_CLASS, NORMAL_PRIORITY_CLASS, ABOVE_NORMAL_PRIORITY_CLASS, or HIGH_PRIORITY_CLASS processes, and a base priority of 16 for REALTIME_PRIORITY_CLASS processes. | | THREAD_PRIORITY_LOWEST | -2 | Priority 2 points below the priority class. | | THREAD_PRIORITY_NORMAL | 0 | Normal priority for the priority class. | | THREAD_PRIORITY_TIME_CRITICAL | 15 | Base priority of 15 for IDLE_PRIORITY_CLASS, BELOW_NORMAL_PRIORITY_CLASS, NORMAL_PRIORITY_CLASS, ABOVE_NORMAL_PRIORITY_CLASS, or HIGH_PRIORITY_CLASS processes, and a base priority of 31 for REALTIME_PRIORITY_CLASS processes. |