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NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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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
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.
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.
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 [email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ on 2024-06-14.
(At that time, the date of the most recent commit that was found
in the repository was 2024-06-14.) 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
[email protected]
Performance Co-Pilot PCP PMFREELABELSETS(3)
Pages that refer to this page: pmapi(3), pmlookuplabels(3)
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HTML rendering created 2024-06-26 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. |
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