OSI/FTAM Programming Guide

ISO FTAM Concepts
HP NonStop OSI/FTAM Programming Guide—528612-001
2-37
File Attributes
set from the account parameter of the FTAM-regime-establishment service,
file-creation service, or file-selection service.
The current-concurrency-control attribute specifies the restrictions on parallel access to
a file requested by the initiator. The value for each element of current concurrency
control corresponds to each of the file-access actions listed in the description of the
current-access-request attribute, and is one of the four values given in Table 2-13. The
scope of the attribute is either the file-select or file-open regime, depending on whether
its value is established on the select or open service. NonStop FTAM does not support
this attribute.
The current-locking-style attribute indicates whether or not the FADU-locking
mechanisms have been enabled. The value is set from the enable-FADU-locking
parameter of the file-open service. The scope of the attribute is the file-open regime.
NonStop FTAM does not support this attribute. The current-access-passwords attribute
contains elements that assign values to the eight elements of the
current-access-request attribute. These values are set from the access-passwords
parameter of the file-creation or file-selection services and from the initial-
attributes parameter of the file-creation service. The scope of the attribute is the
file-selection regime.
The active-legal-qualification attribute is established when a file is opened, and is
derived from the legal-qualifications file attribute. The meaning of this attribute is not
defined in ISO 8571; its scope is the file-open regime.
File Attributes
File attributes are characteristics of a file in the virtual filestore, such as the name and
size of the file and date and time the file was created. Some of the file attributes, such
as the filename and contents-type attributes, are initialized when you create a file.
Other file attributes, such as date and time of file creation and file size, are maintained
by the responding system’s file storage system. You can use the read-attribute service
to read file attributes. You can also change some file attributes using the
change-attribute service.
Table 2-13. Concurrency-Control Options
Value
Allows initiator to perform
the action
Allows other FTAM users
on the network to perform
the action
Not required No Yes
Shared Yes Yes
Exclusive Yes No
No Access No No