file-reader-writer/dist/FileBase.js

File reader/writer

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs_1 = __importDefault(require("fs"));
const bluebird_1 = __importDefault(require("bluebird"));
const fsOpen = bluebird_1.default.promisify(fs_1.default.open);
const fsClose = bluebird_1.default.promisify(fs_1.default.close);
class FileBase {
    constructor(file, flags) {
        this.pointer = 0;
        this.file = file;
        this.flags = flags;
    }
    init() {
        return __awaiter(this, void 0, void 0, function* () {
            if (typeof this.file === 'number') {
                this.fd = this.file;
            }
            else {
                this.fd = yield fsOpen(this.file, this.flags);
            }
            return this.refreshStats();
        });
    }
    destroy() {
        return __awaiter(this, void 0, void 0, function* () {
            if (typeof this.file !== 'number' && typeof this.fd === 'number') {
                yield fsClose(this.fd);
            }
            this.fd = this.file = -1;
        });
    }
    offset(size) {
        this.pointer += size;
        return this;
    }
    setPointer(pointer) {
        this.pointer = pointer;
        return this;
    }
}
exports.FileBase = FileBase;