PMFREELABELSETS(3)        Library Functions Manual        PMFREELABELSETS(3)

NAME         top

       pmFreeLabelSets  -  release  storage allocated for performance metric
       labels

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       void pmFreeLabelSets(pmLabelSet *sets, int nsets);

       cc ... -lpcp

DESCRIPTION         top

       The array of label sets returned by pmLookupLabels(3) and related
       APIs are allocated below the Performance Metrics Application
       Programming Interface (PMAPI) using a variety of calls to the
       system's dynamic memory allocation (i.e. malloc(3)) interfaces.

       Applications should call pmFreeLabelSets to release the storage
       previously allocated for the label sets array when access to the
       structure is no longer needed.  The return value from pmLookupLabels
       indicates the number of elements in the label sets array, and this
       should be passed in using the nsets parameter.

       Under no circumstances should an application use free(labelset) to
       release storage previously allocated for a pmLabelSet by
       pmLookupLabels(3) or related APIs.

SEE ALSO         top

       malloc(3), PMAPI(3) and pmLookupLabels(3).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at ⟨http://www.pcp.io/⟩.
       If you have a bug report for this manual page, send it to
       pcp@groups.io.  This page was obtained from the project's upstream
       Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
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Performance Co-Pilot                 PCP                  PMFREELABELSETS(3)

Pages that refer to this page: pmapi(3),  pmlookuplabels(3)

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