devsrv.ed

在x86平台上运行不可信任代码的sandbox。

g/^srvgen/ s/char\*, Dirtab\*, int/char *name, Dirtab *dt, int i/
,s!ref(sp->chan)!ref(\&sp->chan->ref)!
g/^srv/ s/long)/long off)/
/c1 = fdtochan/a
	srvadd(c, c1);
	return n;
}

// Plan 9 VX split srvadd out from srvwrite.
static void
srvadd(Chan *c, Chan *c1)
{
	Srv *sp;

	/* c1 already incref'ed */
.
/^	return n/d
/^srvwrite/
/^	Srv/d
/^srvwrite/-2i
static void srvadd(Chan*, Chan*);

.
$a

// Plan 9 VX addition
void
ksrvadd(Chan *c, Chan *c1)
{
	incref(&c1->ref);
	srvadd(c, c1);
}

.