30     import swi
33         def swi(*a):  member in _swi
35         block= swi
36     swi= _swi()  variable
210         return swi.swi('OS_File', '5s;i', p)!=0
211     except swi.error:
222         return swi.swi('OS_File', '5s;i', p) in [2, 3]
223     except swi.error:
232         return swi.swi('OS_File', '5s;i', p) in [1, 3]
233     except swi.error:
258     b= swi.block(l)
259     swi.swi('OS_FSControl', 'isb..i', 37, fa, b, l)
261     swi.swi('OS_FSControl', 'isb..i', 37, fb, b, l)
281     b= swi.block(l)
286         fsno= swi.swi('OS_Args', '00;i')
287         swi.swi('OS_FSControl', 'iibi', 33, fsno, b, l)
295     x= swi.swi('OS_FSControl', 'ib2s.i;.....i', 54, b, fsname, l)
299         x= swi.swi('OS_FSControl', 'ib0s.i;.....i', 54, b, fsname, l)
313     b= swi.block(l)
314     return b.tostring(0, swi.swi('OS_GSTrans', 'sbi;..i', p, b, l))