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