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document the recent filehandle changes.

This commit is contained in:
pavel 2006-08-26 18:15:36 +00:00
parent 2a1607d040
commit 4eb1701bdb
1 changed files with 19 additions and 1 deletions
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20
share/man/man8/compat_30.8
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@ -1,4 +1,4 @@
.\" $NetBSD: compat_30.8,v 1.2 2006/06/04 15:46:08 chap Exp $
.\" $NetBSD: compat_30.8,v 1.3 2006/08/26 18:15:37 pavel Exp $
.\"
.\" Copyright (c) 2006 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -114,6 +114,24 @@ argument structures were changed after the 3.0 release to accommodate
.Xr getdents 2 ,
.Xr lstat 2 ,
.Xr stat 2 .
.Pp
The filehandle structure (formerly
.Vt fhandle_t )
was made opaque to userland and variable-sized.
A
.Fa fh_size
argument was added to related syscalls:
.Xr fhstat 2 ,
.Xr fhstatvfs 2 ,
.Xr fhstatvfs1 2 ,
.Xr fhopen 2 ,
.Xr getfh 2 .
This changes the API and ABI of those syscalls,
.Dv COMPAT_30
enables binary compatibility with the old ABI.
Source compatibility is not provided, as use of those syscalls is
supposed to be rare.
.Pp
The
.Vt struct ntptimeval
used by