/**
 * Copyright (c) 2025 Mihajlo Stojanovski
 * All rights reserved.
 */
import { MetricsPatch } from "./common";
export interface CpuState {
    total: number;
    steal: number;
    iowait: number;
    user: number;
    system: number;
    idle: number;
}
export interface ComputedCpuStats {
    stealPct: number | null;
    iowaitPct: number | null;
    userPct: number | null;
    systemPct: number | null;
    idlePct: number | null;
}
/**
 * Pure function to parse /proc/stat line
 */
export declare function parseCpuLine(line: string): CpuState | null;
/**
 * Pure function to compute stats from two states
 */
export declare function computeCpuStats(current: CpuState, previous: CpuState): ComputedCpuStats;
export declare class LinuxCollector {
    private readonly platform;
    private lastCpuState;
    constructor(platform?: string);
    collect(): Promise<MetricsPatch>;
    protected readProcStat(): Promise<string>;
    protected readProcPressure(): Promise<string>;
}
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