OSI/FTAM Programming Reference Manual

Introduction to NonStop OSI/FTAM
HP NonStop OSI/FTAM Programming Reference Manual—528611-001
1-9
Application Programmatic Interface
When a remote FTAM initiator needs access to the Guardian file system, the
responder provides that service via its VFS component, mapping the FTAM requests
into Guardian file requests and translating between FTAM and Guardian file structures
and attributes. For more information on the VFS, refer to the OSI/FTAM Responder
Manual.
Application Programmatic Interface
Figure 1-4 on page 1-10 shows that your FTAM application program uses the NonStop
FTAM application programmatic interface (FTAM API). This interface consists of
NonStop FTM, APS, and MFM procedures and associated definition files. The FTM
procedures are the NonStop FTAM protocol procedures described in Section 4, FTM
Procedures. The APS procedures are a small subset of the APS procedures used in
the application programmatic interface to OSI/AS. This subset of general-support
procedures is used primarily for managing FTAM API buffer space and retrieving event
and error information. For a full description of the APS procedures included in the
FTAM API, see Appendix F, APS Procedures. The MFM procedures are the module file
management procedures used in FTAM programming for nowait I/O operations. These
procedures are described in Appendix E, MFM Procedures. The FTM, APS, and MFM
procedures give you access to the functions of the initiator process.