How to use errno - 10 common examples
To help you get started, we’ve selected a few errno examples, based on popular ways it is used in public projects.
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rexxars / openvpn-config-splitter / lib / error.js View on Github 
module.exports = function (err) {
var str = 'Error: '
// If it's a libuv error then get the description from errno
if (errno.errno[err.errno]) {
str += errno.errno[err.errno].description
} else {
str += err.message
}
// If it's an fs error then it'll have a 'path' property
if (err.path) {
str += ' [' + err.path + ']'
}
console.log(str)
process.exit(err.code || 1)
}module.exports = function (err) {
var str = 'Error: '
// If it's a libuv error then get the description from errno
if (errno.errno[err.errno]) {
str += errno.errno[err.errno].description
} else {
str += err.message
}
// If it's an fs error then it'll have a 'path' property
if (err.path) {
str += ' [' + err.path + ']'
}
console.log(str)
process.exit(err.code || 1)
}function pathToArray(path) {
path = normalize(path);
var nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}function pathToArray(path) {
path = normalize(path);
var nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}function pathToArray(path) {
path = normalize(path);
var nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}function pathToArray(path) {
path = normalize(path);
const nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}function pathToArray(path) {
path = normalize(path);
var nix = /^\//.test(path);
if(!nix) {
if(!/^[A-Za-z]:/.test(path)) {
throw new MemoryFileSystemError(errors.code.EINVAL, path);
}
path = path.replace(/[\\\/]+/g, "\\"); // multi slashs
path = path.split(/[\\\/]/);
path[0] = path[0].toUpperCase();
} else {
path = path.replace(/\/+/g, "/"); // multi slashs
path = path.substr(1).split("/");
}
if(!path[path.length-1]) path.pop();
return path;
}os._exit(127);
} else {
// parent
//
// wait until child has started
os.close(errorPipe[1]);
var r = os.read(errorPipe[0]);
if (r.length === 0) {
// child started succesfully
r = 0;
} else {
var p = os.waitpid(pid, 0);
assert.equal(p.pid, pid);
var errorno = Number.parseInt(new TextDecoder().decode(r));
r = new Error('Faild to spawn child: [errno ' + errorno + '] ' + errno.strerror(errorno));
r.errno = errorno;
}
// close fds
var fds = [devNull, errorPipe[0], stdinPipe[0], stdoutPipe[1], stderrPipe[1]];
fds.forEach(function(fd) {
if (fd > os.STDERR_FILENO) {
silentClose(fd);
}
});
// throw error, if there was one
if (r instanceof Error) {
throw r;
}const DEFAULT_OPTIONS = {
maxCallsPerWorker: Infinity,
maxConcurrentWorkers: require('os').cpus().length,
maxConcurrentCallsPerWorker: 10,
maxConcurrentCalls: Infinity,
maxCallTime: Infinity, // exceed this and the whole worker is terminated
maxRetries: Infinity,
forcedKillTime: 100,
autoStart: false,
};
const extend = require('xtend'),
fork = require('./fork'),
TimeoutError = require('errno').create('TimeoutError'),
ProcessTerminatedError = require('errno').create('ProcessTerminatedError'),
MaxConcurrentCallsError = require('errno').create('MaxConcurrentCallsError');
const mergeStream = require('merge-stream');
function Farm(options: {+execArgv: Array}, path: string) {
this.options = extend(DEFAULT_OPTIONS, options);
this.path = path;
this.activeCalls = 0;
this.stdout = mergeStream();
this.stderr = mergeStream();
}
// make a handle to pass back in the form of an external API
Farm.prototype.mkhandle = function(method) {
return function() {
var args = Array.prototype.slice.call(arguments);
if (this.activeCalls >= this.options.maxConcurrentCalls) {/* eslint-disable */
const DEFAULT_OPTIONS = {
maxCallsPerWorker: Infinity,
maxConcurrentWorkers: require('os').cpus().length,
maxConcurrentCallsPerWorker: 10,
maxConcurrentCalls: Infinity,
maxCallTime: Infinity, // exceed this and the whole worker is terminated
maxRetries: Infinity,
forcedKillTime: 100,
autoStart: false,
};
const extend = require('xtend'),
fork = require('./fork'),
TimeoutError = require('errno').create('TimeoutError'),
ProcessTerminatedError = require('errno').create('ProcessTerminatedError'),
MaxConcurrentCallsError = require('errno').create('MaxConcurrentCallsError');
const mergeStream = require('merge-stream');
function Farm(options: {+execArgv: Array}, path: string) {
this.options = extend(DEFAULT_OPTIONS, options);
this.path = path;
this.activeCalls = 0;
this.stdout = mergeStream();
this.stderr = mergeStream();
}
// make a handle to pass back in the form of an external API
Farm.prototype.mkhandle = function(method) {
return function() {
