# PR_CloseFileMap

Closes a file mapping.

## Syntax

```{code}
#include <prio.h>

PRStatus PR_CloseFileMap(PRFileMap *fmap);
```

### Parameter

The function has the following parameter:

`fmap`

: The file mapping to be closed.

### Returns

The function returns one of the following values:

- If the memory region is successfully unmapped, `PR_SUCCESS`.
- If the memory region is not successfully unmapped, `PR_FAILURE`.
  The error code can be retrieved via {ref}`PR_GetError`.

## Description

When a file mapping created with a call to {ref}`PR_CreateFileMap` is no
longer needed, it should be closed with a call to {ref}`PR_CloseFileMap`.