Date: Wed, 21 May 2003 15:41:53 -0400 From: Yaoping Ruan <yruan@cs.princeton.edu> To: Vijay.Singh@nokia.com Cc: freebsd-hackers@freebsd.org Subject: Re: sendfile in FreeBSD 2.2 Message-ID: <3ECBD681.699F5A4C@cs.princeton.edu> References: <20030521190346.BDB3737B407@hub.freebsd.org>
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Hi,
VOP_GETVOBJECT() macro is created by kern/vnode_if.pl and vnode_if.src. By running them you should be able to get vnode_if.c and vnode_if.h file. In vnode_if.h, you will get the macro defined as follow: (From FreeBsd 4.6)
static __inline int VOP_GETVOBJECT __P((
struct vnode *vp,
struct vm_object **objpp));
static __inline int VOP_GETVOBJECT(vp, objpp)
struct vnode *vp;
struct vm_object **objpp;
{
struct vop_getvobject_args a;
int rc;
a.a_desc = VDESC(vop_getvobject);
a.a_vp = vp;
a.a_objpp = objpp;
rc = VCALL(vp, VOFFSET(vop_getvobject), &a);
return (rc);
}
Hope this helps.
- Yaoping
> Message: 19
> Date: Wed, 21 May 2003 09:32:26 -0700
> From: <Vijay.Singh@nokia.com>
> Subject: sendfile in FreeBSD 2.2
> To: <freebsd-hackers@freebsd.org>
> Message-ID:
>
> Hello. Would it be possible to port the sendfile system call to a FreeBSD 2.2 based system? Has anyone done this? I am trying to port the code from a later FreeBSD release and I have been unable to find out what the VOP_GETVOBJECT() macro does and how/what should it be replaced with for my case. Any help is appreciated.
>
> Thanks
> vijay
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