NAME

       pmdaOpenLog - redirect stderr to a logfile

C SYNOPSIS

       #include <pcp/pmapi.h>
       #include <pcp/pmda.h>

       void pmdaOpenLog(pmdaInterface * dispatch);

       cc ... -lpcp_pmda -lpcp

DESCRIPTION

       pmdaOpenLog redirects stderr to the logfile specified in the dispatch structure, set by the previous call
       to pmdaDaemon(3) or pmdaGetOpt(3).  The first line of the log file will detail the name  of  the  calling
       process, the host the process is running on, and the current time.  In addition, the log is appended with
       the exit time of the process by a routine registered with atexit(3).

CAVEAT

       The PMDA must be using PMDA_PROTOCOL_2 or later, as specified in the call to pmdaDSO(3) or pmdaDaemon(3).

PCP ENVIRONMENT

       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.

SEE ALSO

       pmcd(1), atexit(2), PMAPI(3), PMDA(3), pmdaDaemon(3) and pmdaGetOpt(3).