[**@jupyterlite**](../../../README.md)

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[@jupyterlite](../../../README.md) / [@jupyterlite/services](../README.md) / DriveFSEmscriptenStreamOps

# Class: DriveFSEmscriptenStreamOps

Defined in: [packages/services/src/contents/drivefs.ts:157](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L157)

## Implements

- [`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md)

## Constructors

### Constructor

> **new DriveFSEmscriptenStreamOps**(`fs`): `DriveFSEmscriptenStreamOps`

Defined in: [packages/services/src/contents/drivefs.ts:160](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L160)

#### Parameters

##### fs

[`DriveFS`](DriveFS.md)

#### Returns

`DriveFSEmscriptenStreamOps`

## Methods

### close()

> **close**(`stream`): `void`

Defined in: [packages/services/src/contents/drivefs.ts:201](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L201)

#### Parameters

##### stream

[`IDriveStream`](../interfaces/IDriveStream.md)

#### Returns

`void`

#### Implementation of

[`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md).[`close`](../interfaces/IEmscriptenStreamOps.md#close)

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### llseek()

> **llseek**(`stream`, `offset`, `whence`): `number`

Defined in: [packages/services/src/contents/drivefs.ts:272](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L272)

#### Parameters

##### stream

[`IDriveStream`](../interfaces/IDriveStream.md)

##### offset

`number`

##### whence

`number`

#### Returns

`number`

#### Implementation of

[`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md).[`llseek`](../interfaces/IEmscriptenStreamOps.md#llseek)

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### open()

> **open**(`stream`): `void`

Defined in: [packages/services/src/contents/drivefs.ts:164](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L164)

#### Parameters

##### stream

[`IDriveStream`](../interfaces/IDriveStream.md)

#### Returns

`void`

#### Implementation of

[`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md).[`open`](../interfaces/IEmscriptenStreamOps.md#open)

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### read()

> **read**(`stream`, `buffer`, `offset`, `length`, `position`): `number`

Defined in: [packages/services/src/contents/drivefs.ts:224](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L224)

#### Parameters

##### stream

[`IDriveStream`](../interfaces/IDriveStream.md)

##### buffer

`Uint8Array`

##### offset

`number`

##### length

`number`

##### position

`number`

#### Returns

`number`

#### Implementation of

[`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md).[`read`](../interfaces/IEmscriptenStreamOps.md#read)

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### write()

> **write**(`stream`, `buffer`, `offset`, `length`, `position`): `number`

Defined in: [packages/services/src/contents/drivefs.ts:244](https://github.com/jupyterlite/jupyterlite/blob/14439ec34e3cade5baa221a050277e15da9d0c06/packages/services/src/contents/drivefs.ts#L244)

#### Parameters

##### stream

[`IDriveStream`](../interfaces/IDriveStream.md)

##### buffer

`Uint8Array`

##### offset

`number`

##### length

`number`

##### position

`number`

#### Returns

`number`

#### Implementation of

[`IEmscriptenStreamOps`](../interfaces/IEmscriptenStreamOps.md).[`write`](../interfaces/IEmscriptenStreamOps.md#write)