(PYVMS LOGO) Python on OpenVMS

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FREE_EF - Free Event Flag


Format:
    vms_lib.free_ef (event_flag_number)
Returns:

None

Arguments:

event_flag_number
number of the event flag to be freed
Examples:
>>> import vms_lib

>>> # event flags 1 - 23 are initially reserved
>>> #  (compatibility to the RSX operating system)
>>> print vms_lib.free_ef (1)
None

>>> print vms_lib.free_ef (1)
Traceback (innermost last):
  File "<stdin>", line 1, in ?
vms_lib.error: (1409692, '%LIB-F-EF_ALRFRE, event flag already free')
>>>

>>> # event flags 24 - 31 are reserved to OpenVMS
>>> print vms_lib.free_ef (24)
Traceback (innermost last):
  File "<stdin>", line 1, in ?
vms_lib.error: (1409708, '%LIB-F-EF_RESSYS, event flag reserved to system')
>>>

>>> # event flags 32 - 63 are initially free
>>> print vms_lib.free_ef (32)
Traceback (innermost last):
  File "<stdin>", line 1, in ?
vms_lib.error: (1409692, '%LIB-F-EF_ALRFRE, event flag already free')
>>>

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30-SEP-1998 ZE.