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PMFETCHARCHIVE

PMFETCHARCHIVE

Section: C Library Functions (3) Updated: SGI
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NAME

pmFetchArchive - get performance metrics directly from an archive log  

C SYNOPSIS

#include <pcp/pmapi.h>

int pmFetchArchive(pmResult **result)

cc ... -lpcp  

DESCRIPTION

pmFetchArchive is a variant of pmFetch(3) that may only be used when the current Performance Metrics Application Programming Interface (PMAPI) context is associated with an archive log.

The result is instantiated with all of the metrics (and instances) from the next archive record, consequently there is no notion of a list of desired metrics, and the instance profile of the PMAPI context is ignored.

It is expected that pmFetchArchive would be used to create utilities that scan archive logs, while the more common access to the archives would be via the pmFetch(3) interface.

To skip records within the archive log, use pmSetMode(3) to change the collection time within the current PMAPI context, then call pmFetchArchive.

Note that the result returned by pmFetchArchive is dynamically allocated, and must be released using pmFreeResult(3), not free(3C). See pmFetch(3) and pmFreeResult(3) for further details.

pmFetchArchive returns zero on success.  

SEE ALSO

PMAPI(3), pmFetch(3), pmFreeResult(3), pmNewContext(3), pmSetMode(3) and pmTrimNameSpace(3).  

DIAGNOSTICS

PM_ERR_NOTARCHIVE
the current PMAPI context is not associated with an archive log


 

Index

NAME
C SYNOPSIS
DESCRIPTION
SEE ALSO
DIAGNOSTICS

This document was created by man2html, using the manual pages.
Time: 21:52:36 GMT, April 16, 2011