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NAME | C SYNOPSIS | CAVEAT | DESCRIPTION | DIAGNOSTICS AND RETURN VALUES | SEE ALSO | COLOPHON |
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PMLOGWRITEMARK(3) Library Functions Manual PMLOGWRITEMARK(3)
__pmLogWriteMark - append a <mark> record to a PCP archive
#include <pcp/pmapi.h>
#include <pcp/libpcp.h>
int __pmLogWriteMark(__pmArchCtl *acp, const __pmTimestamp
*last_stamp, const __pmTimestamp *inc);
cc ... -lpcp
This documentation is intended for internal Performance Co-Pilot
(PCP) developer use.
These interfaces are not part of the PCP APIs that are guaranteed
to remain fixed across releases, and at some point in the future
they may not work or may provide different semantics.
__pmLogWriteMark appends a <mark> record to the current data file
of a PCP archive. A <mark> record indicates a discontinuity in
the time series of logged data in the archive, see PCPIntro(1)
for more information.
The timestamp of the <mark> record is given by last_stamp
optionally incremented by inc unless inc is NULL (in which case
no increment is done).
The current data volume's I/O stream and the archive version
(determines the format of the <mark> record) are determined from
acp.
The return value is 0 if all is well, else some error code less
than zero that can be turned into an error message by calling
pmErrStr(3).
PCPIntro(1), PMAPI(3) and __pmLogWrite(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 PMLOGWRITEMARK(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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