| 1 | # destroy
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| 2 |
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| 3 | [![NPM version][npm-image]][npm-url]
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| 4 | [![Build Status][github-actions-ci-image]][github-actions-ci-url]
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| 5 | [![Test coverage][coveralls-image]][coveralls-url]
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| 6 | [![License][license-image]][license-url]
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| 7 | [![Downloads][downloads-image]][downloads-url]
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| 8 |
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| 9 | Destroy a stream.
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| 10 |
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| 11 | This module is meant to ensure a stream gets destroyed, handling different APIs
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| 12 | and Node.js bugs.
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| 13 |
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| 14 | ## API
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| 15 |
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| 16 | ```js
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| 17 | var destroy = require('destroy')
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| 18 | ```
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| 19 |
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| 20 | ### destroy(stream [, suppress])
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| 21 |
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| 22 | Destroy the given stream, and optionally suppress any future `error` events.
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| 23 |
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| 24 | In most cases, this is identical to a simple `stream.destroy()` call. The rules
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| 25 | are as follows for a given stream:
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| 26 |
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| 27 | 1. If the `stream` is an instance of `ReadStream`, then call `stream.destroy()`
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| 28 | and add a listener to the `open` event to call `stream.close()` if it is
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| 29 | fired. This is for a Node.js bug that will leak a file descriptor if
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| 30 | `.destroy()` is called before `open`.
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| 31 | 2. If the `stream` is an instance of a zlib stream, then call `stream.destroy()`
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| 32 | and close the underlying zlib handle if open, otherwise call `stream.close()`.
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| 33 | This is for consistency across Node.js versions and a Node.js bug that will
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| 34 | leak a native zlib handle.
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| 35 | 3. If the `stream` is not an instance of `Stream`, then nothing happens.
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| 36 | 4. If the `stream` has a `.destroy()` method, then call it.
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| 37 |
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| 38 | The function returns the `stream` passed in as the argument.
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| 39 |
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| 40 | ## Example
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| 41 |
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| 42 | ```js
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| 43 | var destroy = require('destroy')
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| 44 |
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| 45 | var fs = require('fs')
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| 46 | var stream = fs.createReadStream('package.json')
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| 47 |
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| 48 | // ... and later
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| 49 | destroy(stream)
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| 50 | ```
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| 51 |
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| 52 | [npm-image]: https://img.shields.io/npm/v/destroy.svg?style=flat-square
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| 53 | [npm-url]: https://npmjs.org/package/destroy
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| 54 | [github-tag]: http://img.shields.io/github/tag/stream-utils/destroy.svg?style=flat-square
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| 55 | [github-url]: https://github.com/stream-utils/destroy/tags
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| 56 | [coveralls-image]: https://img.shields.io/coveralls/stream-utils/destroy.svg?style=flat-square
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| 57 | [coveralls-url]: https://coveralls.io/r/stream-utils/destroy?branch=master
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| 58 | [license-image]: http://img.shields.io/npm/l/destroy.svg?style=flat-square
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| 59 | [license-url]: LICENSE.md
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| 60 | [downloads-image]: http://img.shields.io/npm/dm/destroy.svg?style=flat-square
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| 61 | [downloads-url]: https://npmjs.org/package/destroy
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| 62 | [github-actions-ci-image]: https://img.shields.io/github/workflow/status/stream-utils/destroy/ci/master?label=ci&style=flat-square
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| 63 | [github-actions-ci-url]: https://github.com/stream-utils/destroy/actions/workflows/ci.yml
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