# Class: `DriveFSEmscriptenStreamOps`

[@jupyterlite/contents](../modules/jupyterlite_contents.md).DriveFSEmscriptenStreamOps

## Implements

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

## Constructors

### `constructor`

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

#### Parameters

| Name | Type                                           |
| :--- | :--------------------------------------------- |
| `fs` | [`DriveFS`](jupyterlite_contents.DriveFS-1.md) |

#### Defined in

[packages/contents/src/drivefs.ts:98](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L98)

## Properties

### `fs`

> `Private` **`fs`**: [`DriveFS`](jupyterlite_contents.DriveFS-1.md)

#### Defined in

[packages/contents/src/drivefs.ts:96](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L96)

## Methods

### `close`

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

#### Parameters

| Name     | Type                                                                 |
| :------- | :------------------------------------------------------------------- |
| `stream` | [`IDriveStream`](../interfaces/jupyterlite_contents.IDriveStream.md) |

#### Returns

`void`

#### Implementation of

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

#### Defined in

[packages/contents/src/drivefs.ts:109](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L109)

### `llseek`

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

#### Parameters

| Name     | Type                                                                 |
| :------- | :------------------------------------------------------------------- |
| `stream` | [`IDriveStream`](../interfaces/jupyterlite_contents.IDriveStream.md) |
| `offset` | `number`                                                             |
| `whence` | `number`                                                             |

#### Returns

`number`

#### Implementation of

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

#### Defined in

[packages/contents/src/drivefs.ts:176](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L176)

### `open`

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

#### Parameters

| Name     | Type                                                                 |
| :------- | :------------------------------------------------------------------- |
| `stream` | [`IDriveStream`](../interfaces/jupyterlite_contents.IDriveStream.md) |

#### Returns

`void`

#### Implementation of

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

#### Defined in

[packages/contents/src/drivefs.ts:102](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L102)

### `read`

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

#### Parameters

| Name       | Type                                                                 |
| :--------- | :------------------------------------------------------------------- |
| `stream`   | [`IDriveStream`](../interfaces/jupyterlite_contents.IDriveStream.md) |
| `buffer`   | `Uint8Array`                                                         |
| `offset`   | `number`                                                             |
| `length`   | `number`                                                             |
| `position` | `number`                                                             |

#### Returns

`number`

#### Implementation of

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

#### Defined in

[packages/contents/src/drivefs.ts:132](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L132)

### `write`

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

#### Parameters

| Name       | Type                                                                 |
| :--------- | :------------------------------------------------------------------- |
| `stream`   | [`IDriveStream`](../interfaces/jupyterlite_contents.IDriveStream.md) |
| `buffer`   | `Uint8Array`                                                         |
| `offset`   | `number`                                                             |
| `length`   | `number`                                                             |
| `position` | `number`                                                             |

#### Returns

`number`

#### Implementation of

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

#### Defined in

[packages/contents/src/drivefs.ts:152](https://github.com/jupyterlite/jupyterlite/blob/7971e0aa/packages/contents/src/drivefs.ts#L152)