pmInDomStr,
pmInDomStr_r - convert a performance metric instance
domain identifier into a string
#include <pcp/pmapi.h>
const char *pmInDomStr(pmInDom
indom);
char *pmInDomStr_r(pmInDom
indom, char *
buf, int
buflen);
cc ... -lpcp
For use in error and diagnostic messages,
pmInDomStr return a 'human
readable' version of the specified instance domain identifier. The
pmInDomStr_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 20 bytes.
The value for the instance domain
indom is typically extracted from a
pmDesc structure, following a call to
pmLookupDesc(3) for a
particular performance metric.
Internally, an instance domain identifier is encoded with two fields: domain and
serial.
pmInDomStr returns a string with each of the fields appearing as decimal
numbers, separated by periods.
The string value returned by
pmInDomStr is held in a single static
buffer, so the returned value is only valid until the next call to
pmInDomStr.
pmInDomStr returns a pointer to a static buffer and hence is not
thread-safe. Multi-threaded applications should use
pmInDomStr_r
instead.
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.
PMAPI(3),
pmGetConfig(3),
pmIDStr(3),
pmTypeStr(3),
pmSemStr(3),
pmUnitsStr(3),
pmLookupDesc(3),
pcp.conf(5) and
pcp.env(5).