Free any operating system resources that may have been allocated in the
call to open().
Remarks:
Not all of the selectors need to free resources other than allocated
memory, but those that do will normally also add a call to close() in
their destructors.
Free any operating system resources that may have been allocated in the call to open().
Remarks: Not all of the selectors need to free resources other than allocated memory, but those that do will normally also add a call to close() in their destructors.