|
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. |
|
|
NAME | C SYNOPSIS | DESCRIPTION | NOTES | PCP ENVIRONMENT | SEE ALSO | COLOPHON |
|
|
|
PMINDOMSTR(3) Library Functions Manual PMINDOMSTR(3)
pmInDomStr, pmInDomStr_r - convert a performance metric instance
domain identifier into a string
#include <pcp/pmapi.h>
const char *pmInDomStr(pmInDom indom);
char *pmInDomStr_r(pmInDom indom, char *buf, int buflen);
cc ... -lpcp
For use in error and diagnostic messages, pmInDomStr return a
'human readable' version of the specified instance domain
identifier. The pmInDomStr_r function does the same, but stores
the result in a user-supplied buffer buf of length buflen, which
should have room for at least 20 bytes.
The value for the instance domain indom is typically extracted
from a pmDesc structure, following a call to pmLookupDesc(3) for
a particular performance metric.
Internally, an instance domain identifier is encoded with two
fields: domain and serial.
pmInDomStr returns a string with each of the fields appearing as
decimal numbers, separated by periods.
The string value returned by pmInDomStr is held in a single
static buffer, so the returned value is only valid until the next
call to pmInDomStr.
pmInDomStr returns a pointer to a static buffer and hence is not
thread-safe. Multi-threaded applications should use pmInDomStr_r
instead.
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF variable may be used to
specify an alternative configuration file, as described in
pcp.conf(5). Values for these variables may be obtained
programmatically using the pmGetConfig(3) function.
PMAPI(3), pmGetConfig(3), pmIDStr(3), pmTypeStr(3), pmSemStr(3),
pmUnitsStr(3), pmLookupDesc(3), pcp.conf(5) and pcp.env(5).
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 PMINDOMSTR(3)
Pages that refer to this page: pmidstr(3), pmindom_helper(3), pmsemstr(3), pmtypestr(3), pmunitsstr(3), pmwebapi(3)
|
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. |
|