pmFreeHighResResult(3)

pmFreeHighResResult3

Release storage allocated for performance metrics values

Part of pmFreeResult(3).

C synopsis

#include <pcp/pmapi.h>

void pmFreeResult(pmResult *result);
void pmFreeHighResResult(pmHighResResult *result);

cc ... -lpcp

Overview

The variable sized results returned by pmFetch(3) and pmFetchHighRes(3) are allocated below the Performance Metrics Application Programming Interface (PMAPI) using a combination of dynamic (i.e. malloc(3)) and specialized allocation strategies.

Applications should call pmFreeResult to release the storage previously allocated for result by pmFetch(3), when the application no longer requires access to the pmResult structure.

Under no circumstances should an application use free(result) to release storage previously allocated for a pmResult by pmFetch(3).

Similarly, memory allocated for the high resolution timestamped result structure returned from pmFetchHighRes(3) should be released by a call to pmFreeHighResResult.

Releases

2 releases since Debian 12 (Bookworm); the text changed 1 time.

  1. 12
  2. 13

From libpcp3-dev 6.3.8-1 in Debian 13 (Trixie). Parsed by carta from the page's man source.