forked from lix-project/lix-website
86 lines
2 KiB
JavaScript
86 lines
2 KiB
JavaScript
|
// the parent class for all fstreams.
|
||
|
|
|
||
|
|
module.exports = Abstract
|
||
|
|
|
||
|
|
var Stream = require('stream').Stream
|
||
|
|
var inherits = require('inherits')
|
||
|
|
|
||
|
|
function Abstract () {
|
||
|
|
Stream.call(this)
|
||
|
|
}
|
||
|
|
|
||
|
|
inherits(Abstract, Stream)
|
||
|
|
|
||
|
|
Abstract.prototype.on = function (ev, fn) {
|
||
|
|
if (ev === 'ready' && this.ready) {
|
||
|
|
process.nextTick(fn.bind(this))
|
||
|
|
} else {
|
||
|
|
Stream.prototype.on.call(this, ev, fn)
|
||
|
|
}
|
||
|
|
return this
|
||
|
|
}
|
||
|
|
|
||
|
|
Abstract.prototype.abort = function () {
|
||
|
|
this._aborted = true
|
||
|
|
this.emit('abort')
|
||
|
|
}
|
||
|
|
|
||
|
|
Abstract.prototype.destroy = function () {}
|
||
|
|
|
||
|
|
Abstract.prototype.warn = function (msg, code) {
|
||
|
|
var self = this
|
||
|
|
var er = decorate(msg, code, self)
|
||
|
|
if (!self.listeners('warn')) {
|
||
|
|
console.error('%s %s\n' +
|
||
|
|
'path = %s\n' +
|
||
|
|
'syscall = %s\n' +
|
||
|
|
'fstream_type = %s\n' +
|
||
|
|
'fstream_path = %s\n' +
|
||
|
|
'fstream_unc_path = %s\n' +
|
||
|
|
'fstream_class = %s\n' +
|
||
|
|
'fstream_stack =\n%s\n',
|
||
|
|
code || 'UNKNOWN',
|
||
|
|
er.stack,
|
||
|
|
er.path,
|
||
|
|
er.syscall,
|
||
|
|
er.fstream_type,
|
||
|
|
er.fstream_path,
|
||
|
|
er.fstream_unc_path,
|
||
|
|
er.fstream_class,
|
||
|
|
er.fstream_stack.join('\n'))
|
||
|
|
} else {
|
||
|
|
self.emit('warn', er)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Abstract.prototype.info = function (msg, code) {
|
||
|
|
this.emit('info', msg, code)
|
||
|
|
}
|
||
|
|
|
||
|
|
Abstract.prototype.error = function (msg, code, th) {
|
||
|
|
var er = decorate(msg, code, this)
|
||
|
|
if (th) throw er
|
||
|
|
else this.emit('error', er)
|
||
|
|
}
|
||
|
|
|
||
|
|
function decorate (er, code, self) {
|
||
|
|
if (!(er instanceof Error)) er = new Error(er)
|
||
|
|
er.code = er.code || code
|
||
|
|
er.path = er.path || self.path
|
||
|
|
er.fstream_type = er.fstream_type || self.type
|
||
|
|
er.fstream_path = er.fstream_path || self.path
|
||
|
|
if (self._path !== self.path) {
|
||
|
|
er.fstream_unc_path = er.fstream_unc_path || self._path
|
||
|
|
}
|
||
|
|
if (self.linkpath) {
|
||
|
|
er.fstream_linkpath = er.fstream_linkpath || self.linkpath
|
||
|
|
}
|
||
|
|
er.fstream_class = er.fstream_class || self.constructor.name
|
||
|
|
er.fstream_stack = er.fstream_stack ||
|
||
|
|
new Error().stack.split(/\n/).slice(3).map(function (s) {
|
||
|
|
return s.replace(/^ {4}at /, '')
|
||
|
|
})
|
||
|
|
|
||
|
|
return er
|
||
|
|
}
|