centos man page for pmerrstr

PMERRSTR(3)						     Library Functions Manual						       PMERRSTR(3)

NAME
       pmErrStr, pmErrStr_r - convert a PMAPI error code into a string

C SYNOPSIS
       #include <pcp/pmapi.h>

       const char *pmErrStr(int code);
       char *pmErrStr_r(int code, char *buf, int buflen);

       cc ... -lpcp

DESCRIPTION
       Translate  an  error  code  into  a  text string, suitable for generating a diagnostic message.	The pmErrStr_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 PM_MAXERRMSGLEN bytes.

       By convention, all error codes are negative.  The small values are assumed to be negated versions of the Unix error  codes  as  defined	in
       <errno.h>  and the strings returned are as per strerror(3C).  The larger, negative error codes are Performance Metrics Application Program-
       ming Interface (PMAPI) error conditions and pmErrStr(3) returns an appropriate PMAPI error string, as determined by code.

NOTES
       pmErrStr returns a pointer to a static buffer, so the returned value is only valid until the next call to pmErrStr and hence is not thread-
       safe.  Multi-threaded applications should use pmErrStr_r instead.

SEE ALSO
       pmerr(1), PMAPI(3) and perror(3C).

Performance Co-Pilot							PCP							       PMERRSTR(3)