OSI/AS Programming Manual

APS_EXCEPTIONREQ_
APS Procedure Calls
3–74 056783 Tandem Computers Incorporated
tag input
INT(32):value
is for use in nowait mode only. Specify a unique value to identify this instance of
the procedure call. When the operation is complete, the MFM_AWAITIOX_
procedure returns the tag value, allowing you to match the completion with the
correct instance of the procedure call.
please-tokens input
INT .EXT:ref:(ZAPS-DDL-TOKENS)
specifies the tokens you are requesting from the remote application in the token
please request primitive to be concatenated with the exception request primitive.
To request tokens from the remote application, set the field values for the
requested tokens to ZAPS-VAL-TOKEN-PLEASE, and set the field values for all
other tokens to ZAPS-VAL-TOKEN-NOVALUE.
Considerations
The maximum amount of user data you can send with this primitive depends on
the layer of your connection, whether you are using session version 1 or session
version 2, and (for presentation and ACSE connections) whether your connection
is in normal mode or X.410-1984 mode. The maximum length of the user-data
parameter is as follows:
Session version 1 Session version 2
Session connection 512 bytes 10240 bytes
Presentation connection (normal mode) <512 bytes < 10240 bytes
ACSE connection (normal mode) <512 bytes < 10240 bytes
For a normal-mode presentation or ACSE connection, you can send as much data
as will fit in a 512-byte PPDU (for session version 1) or a 10240-byte PPDU (for
session version 2); the maximum length depends on the encoding.
For a presentation or ACSE connection in X.410-1984 mode, the maximum amount
of data is the same as that for a session connection.
After you have invoked this primitive, you cannot call any APS procedure that
invokes a primitive, except APS_ASSOC_ABORTREQ_ , until the error is cleared.