Communicator e3000 MPE/iX Release 6.5 (Non-Platform Software Release C.65.00 (30216-90291)

Chapter 3 55
Growth Solution
AIFs for Large Files
AIFs for Large Files
by Rajesh Channabasavaiah
Commercial Systems Division
The Architected Interface Facility (AIF) Operating System product has been enhanced to
handle the instances of Managing Large Files (Up to 1TB) with the AIF Intrinsics. AIFs
are a software layer between non-operating system software and internals providing
controlled access to MPE/iX internal functionality and data structure. For Release 6.5, four
AIF Intrinsics have been identified and modified to obtain the required functionality for
handling Large Files.
The four AIF Intrinsics are as follows:
• AIFFILEGGET
• AIFFILEGPUT
• AIFFILELGET
• AIFILELPUT
Enhancement for AIFFILEGGET/AIFFILEGPUT
These Intrinsics have been enhanced for handling Large Files with the addition of three
item numbers which are as follows:
Enhancement for AIFFILELGET/AIFFILELPUT
These Intrinsics have been enhanced for handling Large Files with the addition of a New
Item number which is as follows:
Item # Item Type Description
5101 Longint_type End of File
5102 Longint_type File limit
5103 Longint_type Number of Sectors
Item # Item Type Description
4101 Longint_type Record pointer offset