1PMINDOMSTR(3)              Library Functions Manual              PMINDOMSTR(3)
2
3
4

NAME

6       pmInDomStr, pmInDomStr_r - convert a performance metric instance domain
7       identifier into a string
8

C SYNOPSIS

10       #include <pcp/pmapi.h>
11
12       const char *pmInDomStr(pmInDom indom);
13       char *pmInDomStr_r(pmInDom indom, char *buf, int buflen);
14
15       cc ... -lpcp
16

DESCRIPTION

18       For use in error and diagnostic messages, pmInDomStr  return  a  'human
19       readable'  version  of  the  specified instance domain identifier.  The
20       pmInDomStr_r function does the same, but stores the result in  a  user-
21       supplied  buffer  buf  of  length buflen, which should have room for at
22       least 20 bytes.
23
24       The value for the instance domain indom is typically extracted  from  a
25       pmDesc  structure, following a call to pmLookupDesc(3) for a particular
26       performance metric.
27
28       Internally, an instance domain identifier is encoded with  two  fields:
29       domain and serial.
30
31       pmInDomStr  returns a string with each of the fields appearing as deci‐
32       mal numbers, separated by periods.
33
34       The string value returned by pmInDomStr is held in a single static buf‐
35       fer,  so  the returned value is only valid until the next call to pmIn‐
36       DomStr.
37

NOTES

39       pmInDomStr returns a pointer to  a  static  buffer  and  hence  is  not
40       thread-safe.    Multi-threaded  applications  should  use  pmInDomStr_r
41       instead.
42

PCP ENVIRONMENT

44       Environment variables with the prefix PCP_ are used to parameterize the
45       file  and  directory names used by PCP.  On each installation, the file
46       /etc/pcp.conf contains the  local  values  for  these  variables.   The
47       $PCP_CONF  variable may be used to specify an alternative configuration
48       file, as described in pcp.conf(5).  Values for these variables  may  be
49       obtained programmatically using the pmGetConfig(3) function.
50

SEE ALSO

52       PMAPI(3),  pmGetConfig(3),  pmIDStr(3), pmTypeStr(3), pmSemStr(3), pmU‐
53       nitsStr(3), pmLookupDesc(3), pcp.conf(5) and pcp.env(5).
54
55
56
57Performance Co-Pilot                  PCP                        PMINDOMSTR(3)
Impressum