diff options
| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2015-05-07 08:53:34 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2015-05-07 08:53:34 +0000 |
| commit | 1b64a290cb5c23b8ca6c35a93d7a1d417c0966b9 (patch) | |
| tree | 11849275298a24e1f22849fd4aeda6e8e64e3c09 /share/man/man9/file.9 | |
| parent | 2e74448235b519e3016df1ec094e7aea1c4f46be (diff) | |
Pass a thread pointer instead of its file descriptor table to getvnode(9).
Input and ok millert@
Diffstat (limited to 'share/man/man9/file.9')
| -rw-r--r-- | share/man/man9/file.9 | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/share/man/man9/file.9 b/share/man/man9/file.9 index 0fdad047692..594679da907 100644 --- a/share/man/man9/file.9 +++ b/share/man/man9/file.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: file.9,v 1.14 2015/05/06 08:52:17 mpi Exp $ +.\" $OpenBSD: file.9,v 1.15 2015/05/07 08:53:33 mpi Exp $ .\" .\" Copyright (c) 2002 Artur Grabowski <art@openbsd.org> .\" All rights reserved. @@ -22,7 +22,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd $Mdocdate: May 6 2015 $ +.Dd $Mdocdate: May 7 2015 $ .Dt FILE 9 .Os .Sh NAME @@ -47,7 +47,7 @@ .In sys/filedesc.h .In sys/vnode.h .Ft int -.Fn getvnode "struct filedesc *fdp" "int fd" "struct file **fpp" +.Fn getvnode "struct proc *p" "int fd" "struct file **fpp" .Sh DESCRIPTION These functions provide the interface for the UNIX file descriptors. File descriptors can be used to access vnodes (see @@ -75,27 +75,20 @@ recommended to make complicated kernel APIs that require it. The files are extracted from the file descriptor table using the functions .Fn fd_getfile -and -.Fn getvnode . .Fn fd_getfile performs all necessary checks to see if the file descriptor number is within the range of file descriptor table, and if the descriptor is valid. -.Fn getvnode -is a special case that besides doing -.Fn fd_getfile -also checks if the descriptor is a vnode, returns the proper -errno on error and increases the use count with -.Fn FREF . .Pp The files are extracted from the process context using the function -.Fn getsock . .Fn getsock -is a special case that besides doing +and +.Fn getvnode . +These functions are special cases that besides doing .Fn fd_getfile -also checks if the descriptor is a socket, returns the proper -errno on error and increases the use count with +also check if the descriptor is a socket or a vnode respectively, +return the proper errno on error and increase the use count with .Fn FREF . .Sh CONCURRENT ACCESS Since multiple processes can share the same file descriptor table, |