@nanobot248/linux-dedupe/dist/index.js

Provides wrapper methods for FIDEDUPERANGE ioctl on linux, allowing to deduplicate file ranges.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Deduplicator = exports.getStatusInfo = exports.FILE_DEDUPE_RANGE_DIFFERS = exports.FILE_DEDUPE_RANGE_SAME = void 0;
const bindings = require("bindings");
const dedupe = bindings("linux-dedupe.node");
exports.FILE_DEDUPE_RANGE_SAME = 0;
exports.FILE_DEDUPE_RANGE_DIFFERS = 1;
function getStatusInfo(status) {
    if (status === 0) {
        return "Ranges are the same, dedupe ok.";
    }
    else if (status === 1) {
        return "Ranges differ, dedupe not possible.";
    }
    else {
        return "Unknown status value " + status + ".";
    }
}
exports.getStatusInfo = getStatusInfo;
class Deduplicator {
    constructor() {
    }
    async dedupe(srcFd, srcOff, srcLen, destFd, destOff) {
        return new Promise((resolve, reject) => {
            const result = dedupe.ioctl_dedupe_range(srcFd, srcOff, srcLen, destFd, destOff, (err, ioctlResult, status, bytes) => {
                console.log("dedupe result: err =", err, ", ioctlResult =", ioctlResult, ", status =", status, ", bytes =", bytes);
                if (err != null) {
                    reject(err);
                }
                else {
                    resolve({
                        ioctlResult: ioctlResult,
                        status: status,
                        deduplicatedBytes: bytes
                    });
                }
            });
        });
    }
}
exports.Deduplicator = Deduplicator;
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