main.js (1613B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2019 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MODULES // 22 23 var op = require( 'fs' ).open; 24 var defaults = require( './defaults.json' ); 25 26 27 // MAIN // 28 29 /** 30 * Asynchronously opens a file. 31 * 32 * @param {(string|Buffer)} path - file path 33 * @param {(string|number)} [flags='r'] - file system flags 34 * @param {integer} [mode=0o666] - file mode 35 * @param {Function} clbk - callback to invoke after opening a file 36 * @returns {void} 37 * 38 * @example 39 * var closeSync = require( '@stdlib/fs/close' ).sync; 40 * var open = require( '@stdlib/fs/open' ); 41 * 42 * function onOpen( error, fd ) { 43 * if ( error ) { 44 * throw error; 45 * } 46 * closeSync( fd ); 47 * } 48 * open( __filename, onOpen ); 49 */ 50 function open( path, flags, mode, clbk ) { // eslint-disable-line stdlib/no-redeclare 51 var nargs = arguments.length; 52 if ( nargs === 2 ) { 53 return op( path, defaults.flags, defaults.mode, flags ); 54 } 55 if ( nargs === 3 ) { 56 return op( path, flags, defaults.mode, mode ); 57 } 58 op( path, flags, mode, clbk ); 59 } 60 61 62 // EXPORTS // 63 64 module.exports = open;