---
name: "pmNameInDom"
section: "3"
platform: "linux"
package: "pcp"
version: "7.2.2-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/pmNameInDom"
---

# pmNameInDom(3)

translate an instance identifier into an instance name

## NAME

**pmNameInDom** - translate an instance identifier into an instance name

## C SYNOPSIS

**#include \<pcp/pmapi.h\>**

**int pmNameInDom(pmInDom** *indom***, int** *inst***, char \*\****name***);**

**cc ... -lpcp**

## DESCRIPTION

For the instance domain *indom*, in the current Performance Metrics Application Programming Interface (PMAPI) context, locate the instance with the internal instance identifier given by *inst*, and return the full external instance identification via *name*.

The value for the instance domain *indom* is typically extracted from a *pmDesc* structure, following a call to [**pmLookupDesc**(3)](/pmLookupDesc/3.md) for a particular performance metric.

The space for the value of *name* will have been allocated in **pmNameInDom** with [**malloc**(3)](/malloc/3.md), and it is the responsibility of the caller to [**free**(3)](/free/3.md) the space when it is no longer required.

**pmNameInDom** returns zero on success.

## DIAGNOSTICS

- **PM\_ERR\_INDOM**

  *indom* is not a valid instance domain identifier

- **PM\_ERR\_INST**

  The instance identifier *inst* is not known for the instance domain *indom* in the current PMAPI context

## SEE ALSO

[**PMAPI**(3)](/PMAPI/3.md), [**pmGetConfig**(3)](/pmGetConfig/3.md), [**pmGetInDom**(3)](/pmGetInDom/3.md), [**pmLookupInDom**(3)](/pmLookupInDom/3.md), [**pmNameInDomArchive**(3)](/pmNameInDomArchive/3.md), [**pcp.conf**(5)](/pcp.conf/5.md) and [**pcp.env**(5)](/pcp.env/5.md).