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NAME | C SYNOPSIS | DESCRIPTION | DIAGNOSTICS | SEE ALSO | COLOPHON |
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PMDESTROYCONTEXT(3) Library Functions Manual PMDESTROYCONTEXT(3)
pmDestroyContext - destroy a PMAPI context
#include <pcp/pmapi.h>
int pmDestroyContext(int handle);
cc ... -lpcp
An application using the Performance Metrics Application
Programming Interface (PMAPI) may manipulate several concurrent
contexts, each associated with a source of performance metrics,
e.g. pmcd(1) on some host, or an archive of performance metrics
as created by pmlogger(1).
pmDestroyContext destroys the PMAPI context identified by handle.
Typically this would imply some termination of a connection to a
PMCD or closing an archive file, and orderly clean-up.
The context must have been previously created using
pmNewContext(3) or pmDupContext(3).
On success, pmDestroyContext returns zero. If handle was the
current PMAPI context, then the current context becomes
undefined. This means the application must explicitly re-
establish a valid PMAPI context with pmUseContext(3), or create a
new context with pmNewContext(3) or pmDupContext(3), before the
next PMAPI operation that requires a PMAPI context.
PM_ERR_NOCONTEXT
handle does not identify a valid PMAPI context
PMAPI(3), pmDupContext(3), pmNewContext(3), pmUseContext(3) and
pmWhichContext(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 pcp@groups.io. 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
man-pages@man7.org
Performance Co-Pilot PCP PMDESTROYCONTEXT(3)
Pages that refer to this page: pcpintro(3), pmaddderived(3), pmapi(3), pmnewcontext(3), pmusecontext(3), pmwhichcontext(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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