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74 lines
1.8 KiB
74 lines
1.8 KiB
6 years ago
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'use strict';
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/*<replacement>*/
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var pna = require('process-nextick-args');
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/*</replacement>*/
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// undocumented cb() API, needed for core, not for public API
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function destroy(err, cb) {
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var _this = this;
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var readableDestroyed = this._readableState && this._readableState.destroyed;
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var writableDestroyed = this._writableState && this._writableState.destroyed;
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if (readableDestroyed || writableDestroyed) {
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if (cb) {
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cb(err);
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} else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
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pna.nextTick(emitErrorNT, this, err);
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}
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return this;
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}
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// we set destroyed to true before firing error callbacks in order
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// to make it re-entrance safe in case destroy() is called within callbacks
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if (this._readableState) {
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this._readableState.destroyed = true;
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}
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// if this is a duplex stream mark the writable part as destroyed as well
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if (this._writableState) {
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this._writableState.destroyed = true;
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}
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this._destroy(err || null, function (err) {
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if (!cb && err) {
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pna.nextTick(emitErrorNT, _this, err);
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if (_this._writableState) {
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_this._writableState.errorEmitted = true;
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}
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} else if (cb) {
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cb(err);
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}
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});
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return this;
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}
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function undestroy() {
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if (this._readableState) {
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this._readableState.destroyed = false;
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this._readableState.reading = false;
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this._readableState.ended = false;
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this._readableState.endEmitted = false;
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}
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if (this._writableState) {
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this._writableState.destroyed = false;
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this._writableState.ended = false;
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this._writableState.ending = false;
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this._writableState.finished = false;
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this._writableState.errorEmitted = false;
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}
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}
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function emitErrorNT(self, err) {
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self.emit('error', err);
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}
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module.exports = {
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destroy: destroy,
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undestroy: undestroy
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};
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