# Interface: `IEmscriptenStreamOps`

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

## Implemented by

- [`DriveFSEmscriptenStreamOps`](../classes/jupyterlite_contents.DriveFSEmscriptenStreamOps.md)


## Methods

### `close`

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

#### Parameters

| Name | Type |
| :------ | :------ |
| `stream` | [`IEmscriptenStream`](jupyterlite_contents.IEmscriptenStream.md) |

#### Returns

`void`

#### Defined in

[packages/contents/src/emscripten.ts:80](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/contents/src/emscripten.ts#L80)



### `llseek`

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

#### Parameters

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

#### Returns

`number`

#### Defined in

[packages/contents/src/emscripten.ts:95](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/contents/src/emscripten.ts#L95)



### `open`

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

#### Parameters

| Name | Type |
| :------ | :------ |
| `stream` | [`IEmscriptenStream`](jupyterlite_contents.IEmscriptenStream.md) |

#### Returns

`void`

#### Defined in

[packages/contents/src/emscripten.ts:79](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/contents/src/emscripten.ts#L79)



### `read`

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

#### Parameters

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

#### Returns

`number`

#### Defined in

[packages/contents/src/emscripten.ts:81](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/contents/src/emscripten.ts#L81)



### `write`

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

#### Parameters

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

#### Returns

`number`

#### Defined in

[packages/contents/src/emscripten.ts:88](https://github.com/jupyterlite/jupyterlite/blob/c78cc8d/packages/contents/src/emscripten.ts#L88)