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(3).   The  larger,
       negative  error  codes are Performance Metrics Application Programming 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(3).