dmmp\_context\_userdata\_set(3) Device Mapper Multipath API - libdmmp Manual dmmp\_context\_userdata\_set(3)

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

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

# [ARGUMENTS](#ARGUMENTS)

[ctx](#ctx)

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

[userdata](#userdata)

Pointer of user defined data.

# [DESCRIPTION](#DESCRIPTION)

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

# [RETURN](#RETURN)

void

dmmp\_context\_userdata\_set June 2025

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Document: dmmp_context_userdata_set(3) from multipath-tools 0.15.1-r0 (Chainguard OS)
Source: https://github.com/opensvc/multipath-tools