[Coco] RBF File System Questions

[Darren A.]

Hi all.  Are there any RBF file system experts on this list who can help me? 
In particular, I need to know more about how file descriptors are allocated. 
I read the chapter from the OS 9 Programmer's Manual, but it doesn't go into 
enough detail.

The Programmer's Manual says that the first sector of every file is a file 
descriptor. It also says that when a file is first created, it has no 
segments allocated. This seems to imply that the file descriptor is not 
contained in one of the file's segments.  Are the descriptors just allocated 
as independent sectors that are not contained in any file, including a 
directory file?

Also, when the cluster size of a volume is more than one sector, is the size 
of a file descriptor still a single sector or is it the same as the cluster 
size? If it's still just a single sector, is the extra space in the cluster 
wasted, or is the file system able to allocate multiple file descriptors in 
a single cluster?

Darren

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