| PMEXTRACTNODE(3) | PMEXTRACTNODE(3) | 
int pmExtractNode(pmContext *pmc, int node, pmContext **member_pmcp, int *member_nodep);
| pmContext * | pmc | pmContext object: must be a PM_COMPOSITEtype | |
| int | node | Node number in pmc | |
| pmContext ** | member_pmcp | Member context | |
| int * | member_nodep | Node in member context | 
pmExtractNode() extracts a member context and a member node
number of node in pmc.
PM_COMPOSITE contexts supports this operation.
| PM_SUCCESS | Success | 
| EINVAL | Invalid node number | 
| No context is associated with node | |
| ENOSYS | Operation not supported |