@seriousme/opifex/dist/mqttPacket/length.d.ts

MQTT client & server for Deno & NodeJS

/**
 * Encodes a number into a variable-length byte array using a modified base-128 encoding
 * @param n The number to encode
 * @returns Array of bytes representing the encoded number
 * @throws Error if the encoded length is greater than 4 bytes
 */
export declare function encodeLength(n: number): number[];
/**
 * Decodes a variable-length encoded number from a byte array
 * @param buf The byte array containing the encoded number
 * @param start The starting position in the buffer to begin decoding
 * @returns Object containing the decoded length and number of bytes used for encoding
 * @throws Error if decoding fails
 */
export declare function decodeLength(buf: Uint8Array, start: number): {
    length: number;
    numLengthBytes: number;
};
/**
 * Interface for the result returned by the length decoder
 */
export type LengthDecoderResult = {
    done: boolean;
    length: number;
    numLengthBytes: number;
};
/**
 * Creates a stateful decoder function for processing variable-length encoded numbers
 * @returns Function that processes one byte at a time and returns decoding status
 * @throws Error if the encoded length is greater than 4 bytes
 */
export declare function getLengthDecoder(): (encodedByte: number) => LengthDecoderResult;
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