The file system registration APIs allow you to create support for the HFS APIs so that application programmers can use them with new hierarchical file systems you are creating or installing.
See the following to understand how to use the HFS APIs and exit programs with a new hierarchical file system.
The file system registration APIs are for registering and deregistering file system to HFS. The APIs are:
The HFS exit programs support the HFS APIs. You must create exit programs to support these APIs.
The operation parameters used in these exit programs are followed by an abbreviation, the function name. For example, in the Start Job Session exit program, the initialize (INIT) function is being performed. The function names are passed to the HFS API so that the file system knows which operation is being performed.
The HFS exit programs are:
| Hierarchical File System APIs | APIs by category |