pmnotifyerr(3) — Linux manual page


PMNOTIFYERR(3)          Library Functions Manual          PMNOTIFYERR(3)

NAME         top

       pmNotifyErr, pmSyslog - standard handling of error messages

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       void pmNotifyErr(int priority, const char *message, ...);
       void pmSyslog(int onoff);

       cc ... -lpcp

DESCRIPTION         top

       These routines provide standard handling for error messages from
       within the internals of Performance Co-Pilot (PCP) daemons and
       Performance Metric Domain Agents (PMDAs).

       pmNotifyErr is a printf(3) style function that will format
       message (and any subsequent arguments) with a prefix that
       includes the current date and time from ctime(3), the name of the
       application from pmGetProgname(3), the process's id from
       getpid(2) and the priority.

       priority should be one of the level LOG_ macros defined for
       syslog(3).  Most typically this would be LOG_INFO, LOG_WARNING or

       pmNotifyErr writes to standard error, which for daemons and PMDAs
       has most likely been redirected to a log file using pmOpenLog(3).
       Additionally message (and any subsequent arguments) may be sent
       forwarded to syslog(3) if pmSyslog has previously been called
       with onoff having a non-zero value.

       Forwarding to syslog(3) can be disabled at any time by calling
       pmSyslog with onoff having a zero value, and this is the starting
       state for each PCP application.

       In the style of syslog(3) message need not include a terminating
       newline character (one will be added if required).

SEE ALSO         top

       getpid(2), ctime(3), PMAPI(3), pmGetProgname(3), pmOpenLog(3),
       printf(3) and syslog(3).

COLOPHON         top

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       ⟨⟩ on 2023-12-22.
       (At that time, the date of the most recent commit that was found
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Performance Co-Pilot               PCP                    PMNOTIFYERR(3)

Pages that refer to this page: pmnomem(3)