---
name: "dmmp_context_userdata_set"
section: "3"
platform: "linux"
package: "multipath-tools"
version: "0.15.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/dmmp_context_userdata_set"
---

# dmmp\_context\_userdata\_set(3)

Set user data pointer.

## NAME

dmmp\_context\_userdata\_set - Set user data pointer.

## SYNOPSIS

**void dmmp\_context\_userdata\_set** **(struct dmmp\_context \****ctx***,** **void \****userdata***);**

## ARGUMENTS

- ctx

  Pointer of 'struct dmmp\_context'. If this pointer is NULL, your program will be terminated by assert.

- userdata

  Pointer of user defined data.

## DESCRIPTION

Store user data pointer into 'struct dmmp\_context'.

## RETURN

void