1PMNOTIFYERR(3)             Library Functions Manual             PMNOTIFYERR(3)
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NAME

6       pmNotifyErr, pmSyslog - standard handling of error messages
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C SYNOPSIS

9       #include <pcp/pmapi.h>
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11       void pmNotifyErr(int priority, const char *message, ...);
12       void pmSyslog(int onoff);
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14       cc ... -lpcp
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DESCRIPTION

17       These routines provide standard handling for error messages from within
18       the internals of Performance Co-Pilot  (PCP)  daemons  and  Performance
19       Metric Domain Agents (PMDAs).
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21       pmNotifyErr is a printf(3) style function that will format message (and
22       any subsequent arguments) with a prefix that includes the current  date
23       and  time  from  ctime(3),  the name of the application from pmGetProg‐
24       name(3), the process's id from getpid(2) and the priority.
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26       priority should be one of the level LOG_ macros defined for  syslog(3).
27       Most typically this would be LOG_INFO, LOG_WARNING or LOG_ERR.
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29       pmNotifyErr  writes  to standard error, which for daemons and PMDAs has
30       most likely been redirected to a log file  using  pmOpenLog(3).   Addi‐
31       tionally  message  (and any subsequent arguments) may be sent forwarded
32       to syslog(3) if pmSyslog has previously been called with onoff having a
33       non-zero value.
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35       Forwarding to syslog(3) can be disabled at any time by calling pmSyslog
36       with onoff having a zero value, and this is the starting state for each
37       PCP application.
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SEE ALSO

40       getpid(2),    ctime(3),   PMAPI(3),   pmGetProgname(3),   pmOpenLog(3),
41       printf(3) and syslog(3).
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45Performance Co-Pilot                  PCP                       PMNOTIFYERR(3)
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