Provided by: libpcp3-dev_5.3.7-1_amd64
pmWhichContext - identify the current PMAPI context
#include <pcp/pmapi.h> int pmWhichContext(void); cc ... -lpcp
An application using the Performance Metrics Application Programming Interface (PMAPI) may manipulate several concurrent contexts, each associated with a source of performance metrics, e.g. pmcd(1) on some host, or an archive log of performance metrics as created by pmlogger(1). pmWhichContext returns a handle for the current PMAPI context, that may be used in the associated PMAPI routines that require a handle to identify a PMAPI context.
PM_ERR_NOCONTEXT no current context
PMAPI(3), pmDestroyContext(3), pmDupContext(3), pmNewContext(3) and pmUseContext(3).