On Wed, Mar 31, 2004 at 11:02:23AM +0900, enami tsugutomo wrote:

> christos@zoulas.com (Christos Zoulas) writes:
> 
> >    2b. Q: X/Open says we should use unsigned long for bsize, frsize and
> >           fsblkcnt_t for the rest. Should we do that?
> >        A: I say keep the types as I have them.
> 
> do `the rest' includes f_bavail?

SUSv3 says:

     The <sys/statvfs.h> header shall define the statvfs structure that
     includes at least the following members:

	fsblkcnt_t    f_blocks   Total number of blocks on file system in
				 units of f_frsize.
	fsblkcnt_t    f_bfree    Total number of free blocks.
	fsblkcnt_t    f_bavail   Number of free blocks available to
				 non-privileged process.
	fsfilcnt_t    f_files    Total number of file serial numbers.
	fsfilcnt_t    f_ffree    Total number of free file serial numbers.
	fsfilcnt_t    f_favail   Number of file serial numbers available
				 to non-privileged process.

and that <sys/types> defines the following types:

   fsblkcnt_t
          [XSI] [Option Start] Used for file system block
          counts. [Option End]
   fsfilcnt_t
          [XSI] [Option Start] Used for file system file
          counts. [Option End]

I guess technically we should also use the fsblkcnt_t and fsfilcnt_t
types in struct statvfs too.  FWIW, struct statvfs is the only user
of these two types.
 
Simon.
--
Simon Burge                                   <simonb@wasabisystems.com>
NetBSD Development, Support and Service:   http://www.wasabisystems.com/