---
name: "mongoc_stream_flush"
section: "3"
platform: "linux"
package: "libmongoc-doc"
version: "1.30.4-1+deb13u3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mongoc_stream_flush"
---

# mongoc\_stream\_flush(3)

## SYNOPSIS

```
int
mongoc_stream_flush (mongoc_stream_t *stream);
```

## PARAMETERS

- •

  **stream**: A *mongoc\_stream\_t*.

This function shall flush any buffered bytes in the underlying stream to the physical transport. It mimics the API and semantics of **fflush()**, forcing a write of user space buffered data.

Not all stream implementations may implement this feature.

## RETURNS

0 is returned on success, otherwise **-1** and **errno** is set.

## AUTHOR

MongoDB, Inc

## COPYRIGHT

2009-present, MongoDB, Inc.