jnr.posix.LinuxIoPrio Maven / Gradle / Ivy

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A Shaded CQL ActivityType driver for http://nosqlbench.io/

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package jnr.posix;

public abstract class LinuxIoPrio {
    public static int IOPRIO_WHO_PROCESS = 1;
    public static int IOPRIO_WHO_PGRP = 2;
    public static int IOPRIO_WHO_USER = 3;

    public static int IOPRIO_CLASS_NONE = 0;
    public static int IOPRIO_CLASS_RT = 1;
    public static int IOPRIO_CLASS_BE = 2;
    public static int IOPRIO_CLASS_IDLE = 3;

    public static int IOPRIO_PRIO_VALUE(int _class, int data) {
        return (_class << 13) | data;
    }

    public static int IOPRIO_PRIO_CLASS(int mask) {
        return mask >> 13;
    }

    public static int IOPRIO_PRIO_DATA(int mask) {
        return mask & 0x0f;
    }
}