/**
 * Runner Manager
 * Manages spawning and lifecycle of llama.cpp runner processes
 */
import { type ChildProcess } from 'child_process';
import { EventEmitter } from 'events';
import { RunnerClient } from './client.js';
import type { RunnerConfig, SystemInfo } from '../types/index.js';
export type RunnerInstanceStatus = 'starting' | 'loading' | 'ready' | 'busy' | 'error' | 'stopped';
export interface RunnerInstance {
    id: string;
    pid: number;
    port: number;
    status: RunnerInstanceStatus;
    modelPath: string;
    client: RunnerClient;
    process: ChildProcess;
    startedAt: Date;
    lastUsedAt: Date;
}
export interface SpawnOptions {
    modelPath: string;
    ollamaEngine?: boolean;
    gpuLibPaths?: string[];
    env?: Record<string, string>;
}
export declare class RunnerManager extends EventEmitter {
    private config;
    private runners;
    private runnerPath;
    constructor(config?: Partial<RunnerConfig>);
    /**
     * Find the runner executable
     */
    findRunner(): Promise<string>;
    /**
     * Find the ollama executable in system PATH
     */
    private findOllama;
    /**
     * Spawn a new runner process
     */
    spawn(options: SpawnOptions): Promise<RunnerInstance>;
    /**
     * Get the library path environment variable name for the current platform
     */
    private getLibraryPathEnv;
    /**
     * Load a model on a runner
     */
    load(instance: RunnerInstance, options?: {
        parallel?: number;
        batchSize?: number;
        numCtx?: number;
        numThreads?: number;
        flashAttention?: boolean;
        kvCacheType?: string;
    }): Promise<void>;
    /**
     * Get a runner instance by ID
     */
    get(id: string): RunnerInstance | undefined;
    /**
     * Get all runner instances
     */
    getAll(): RunnerInstance[];
    /**
     * Find a runner by model path
     */
    findByModel(modelPath: string): RunnerInstance | undefined;
    /**
     * Update last used timestamp
     */
    touch(id: string): void;
    /**
     * Kill a runner process
     */
    kill(id: string): Promise<void>;
    /**
     * Kill all runners
     */
    killAll(): Promise<void>;
    /**
     * Get system info
     */
    getSystemInfo(): SystemInfo;
    /**
     * Check if any runners are running
     */
    hasRunningRunners(): boolean;
    /**
     * Get count of running runners
     */
    get runnerCount(): number;
}
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