pmGetContextFD, pmGetContextTimeout - get file descriptor associated
with a PMAPI context
int pmGetContextFD(int handle)
int pmGetContextTimeout(int handle)
cc ... -lpcp
An application using the Performance Metrics Application Programming
Interface (PMAPI) may manipulate several concurrent contexts to connect
pmGetContextFD allows application to retrieve file descriptor used to
communicate to pmcd(1) and use it to implement some sort of
input/output multiplexing scheme.
pmGetContextTimeout allows application to retrive a time in
milliseconds which an application must wait for the reply from pmcd(1).
Value -1 means that there is no timeout and application must be
prepared to wait as long as it takes to receive a reply.
PMAPI(3), pmLoop(3), pmDestroyContext(3), pmDupContext(3),
pmNewContext(3), pmContextConnectTo(3) and pmWhichContext(3).
handle does not identify a valid PMAPI context.
The context is not associated with PMCD.
The connection to PMCD is not yet established.