/**
 * CircularOutputBuffer - Efficient circular buffer for terminal output
 *
 * Maintains a rolling buffer of terminal output data with a configurable
 * maximum size. Older data is automatically discarded when the buffer
 * exceeds its limit.
 */
/** Maximum output buffer size per session (1 MB) */
export declare const MAX_OUTPUT_BUFFER_SIZE: number;
/**
 * Circular buffer for terminal output
 *
 * Efficiently manages terminal output with automatic size limiting.
 * Maintains insertion order while discarding oldest data when full.
 */
export declare class CircularOutputBuffer {
    private chunks;
    private totalSize;
    private readonly maxSize;
    /**
     * Create a new circular output buffer
     * @param maxSize Maximum buffer size in bytes (default: 1MB)
     */
    constructor(maxSize?: number);
    /**
     * Push data into the buffer
     */
    push(data: Buffer | string): void;
    /**
     * Get the complete buffer contents
     * @param maxBytes Optional maximum bytes to return (from the end)
     */
    get(maxBytes?: number): Buffer;
    /** Get the current buffer size in bytes */
    get size(): number;
    /** Get the maximum buffer size */
    get capacity(): number;
    /** Check if the buffer is empty */
    get isEmpty(): boolean;
    /** Clear all buffer contents */
    clear(): void;
    /** Get the number of chunks in the buffer */
    get chunkCount(): number;
    /** Trim buffer to stay within max size */
    private trim;
    /** Compact the buffer into a single chunk (reduces memory fragmentation) */
    compact(): void;
}
/**
 * Create a new output buffer with default settings
 */
export declare function createOutputBuffer(maxSize?: number): CircularOutputBuffer;
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