|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|
|
NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
|
|
|
PMFREELABELSETS(3) Library Functions Manual PMFREELABELSETS(3)
pmFreeLabelSets - release storage allocated for performance metric
labels
#include <pcp/pmapi.h>
void pmFreeLabelSets(pmLabelSet *sets, int nsets);
cc ... -lpcp
The array of label sets returned by pmLookupLabels(3) and related
APIs are allocated below the Performance Metrics Application Pro‐
gramming Interface (PMAPI) using a variety of calls to the sys‐
tem'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 pmLookupLa‐
bels 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.
To simplify error handling, if sets is NULL then pmFreeLabelSets
simply returns without freeing any storage.
malloc(3), PMAPI(3) and pmLookupLabels(3).
This page is part of the PCP (Performance Co-Pilot) project. In‐
formation 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
2025-08-11. (At that time, the date of the most recent commit
that was found in the repository was 2025-08-11.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a
mail to man-pages@man7.org
Performance Co-Pilot PCP PMFREELABELSETS(3)
Pages that refer to this page: pmapi(3), pmlookuplabels(3)
|
HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
|