NAME
pmGetContextHostName - return the hostname associated with
a Performance Co-Pilot context identifier
C SYNOPSIS
#include <pcp/pmapi.h>
const char *pmGetContextHostName(int id)
cc ... -lpcp
DESCRIPTION
Given a valid PCP context identifier previously created
with pmNewContext(3) or pmDupContext(3), the pmGetContex
tHostName function returns the hostname associated with
id. The context id may be associated with either a live
(host) or archive source of data. In the latter case, the
hostname returned is extracted from the archive label
using pmGetArchiveLabel(3).
RETURN VALUE
If id is not a valid PCP context identifier, this function
returns a zero length string and hence never fails.
PCP ENVIRONMENT
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(4). Values for these variables
may be obtained programatically using the pmGetConfig(3)
function.
SEE ALSO
PCPIntro(1), PMAPI(3), pmDupContext(3), pmGetArchiveLa
bel(3), pmNewContext(3), pcp.conf(4) and pcp.env(4).
Man(1) output converted with
man2html