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 firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2021-08-27.) 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@example.com Performance Co-Pilot PCP PMFREELABELSETS(3)
Pages that refer to this page: pmapi(3), pmlookuplabels(3)