62 lines
2.3 KiB
Markdown
62 lines
2.3 KiB
Markdown
# Destroy
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[![NPM version][npm-image]][npm-url]
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[![Build Status][github-actions-ci-image]][github-actions-ci-url]
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[![Test coverage][coveralls-image]][coveralls-url]
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[![License][license-image]][license-url]
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[![Downloads][downloads-image]][downloads-url]
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Destroy a stream.
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This module is meant to ensure a stream gets destroyed, handling different APIs
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and Node.js bugs.
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## API
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```js
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var destroy = require('destroy')
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```
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### destroy(stream)
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Destroy the given stream. In most cases, this is identical to a simple
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`stream.destroy()` call. The rules are as follows for a given stream:
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1. If the `stream` is an instance of `ReadStream`, then call `stream.destroy()`
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and add a listener to the `open` event to call `stream.close()` if it is
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fired. This is for a Node.js bug that will leak a file descriptor if
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`.destroy()` is called before `open`.
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2. If the `stream` is an instance of a zlib stream, then call `stream.destroy()`
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and close the underlying zlib handle if open, otherwise call `stream.close()`.
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This is for consistency across Node.js versions and a Node.js bug that will
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leak a native zlib handle.
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3. If the `stream` is not an instance of `Stream`, then nothing happens.
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4. If the `stream` has a `.destroy()` method, then call it.
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The function returns the `stream` passed in as the argument.
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## Example
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```js
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var destroy = require('destroy')
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var fs = require('fs')
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var stream = fs.createReadStream('package.json')
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// ... and later
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destroy(stream)
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```
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[npm-image]: https://img.shields.io/npm/v/destroy.svg?style=flat-square
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[npm-url]: https://npmjs.org/package/destroy
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[github-tag]: http://img.shields.io/github/tag/stream-utils/destroy.svg?style=flat-square
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[github-url]: https://github.com/stream-utils/destroy/tags
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[coveralls-image]: https://img.shields.io/coveralls/stream-utils/destroy.svg?style=flat-square
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[coveralls-url]: https://coveralls.io/r/stream-utils/destroy?branch=master
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[license-image]: http://img.shields.io/npm/l/destroy.svg?style=flat-square
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[license-url]: LICENSE.md
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[downloads-image]: http://img.shields.io/npm/dm/destroy.svg?style=flat-square
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[downloads-url]: https://npmjs.org/package/destroy
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[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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[github-actions-ci-url]: https://github.com/stream-utils/destroy/actions/workflows/ci.yml
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