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(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).

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