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55 lines
1.0 KiB
55 lines
1.0 KiB
var events = require('events');
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var util = require('util');
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function Stream () {
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events.EventEmitter.call(this);
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}
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util.inherits(Stream, events.EventEmitter);
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exports.Stream = Stream;
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Stream.prototype.pipe = function (dest, options) {
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var source = this;
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source.on("data", function (chunk) {
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if (false === dest.write(chunk)) source.pause();
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});
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dest.on("drain", function () {
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if (source.readable) source.resume();
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});
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/*
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* If the 'end' option is not supplied, dest.end() will be called when
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* source gets the 'end' event.
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*/
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if (!options || options.end !== false) {
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source.on("end", function () {
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dest.end();
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});
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}
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/*
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* Questionable:
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*/
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if (!source.pause) {
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source.pause = function () {
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source.emit("pause");
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};
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}
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if (!source.resume) {
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source.resume = function () {
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source.emit("resume");
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};
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}
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dest.on("pause", function () {
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source.pause();
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});
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dest.on("resume", function () {
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if (source.readable) source.resume();
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});
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};
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