void
io(void)
{
char *err;
int n;
for(;;){
n = read9pmsg(mfd[0], mdata, sizeof mdata);
if(n <= 0)
break;
if(convM2Su(mdata, n, &rhdr, dotu) != n)
sysfatal("convM2S conversion error");
if(dflag)
fprint(2, "vacfs:<-%F\n", &rhdr);
thdr.data = (char*)mdata + IOHDRSZ;
if(!fcalls[rhdr.type])
err = "bad fcall type";
else
err = (*fcalls[rhdr.type])(newfid(rhdr.fid));
if(err){
thdr.type = Rerror;
thdr.ename = err;
}else{
thdr.type = rhdr.type + 1;
thdr.fid = rhdr.fid;
}
thdr.tag = rhdr.tag;
if(dflag)
fprint(2, "vacfs:->%F\n", &thdr);
n = convS2Mu(&thdr, mdata, messagesize, dotu);
if(n <= BIT16SZ)
sysfatal("convS2Mu conversion error");
if(err)
vtfree(err);
if(write(mfd[1], mdata, n) != n)
sysfatal("mount write: %r");
}
}
uint
convS2M(Fcall *f, uchar *ap, uint nap)
{
return convS2Mu(f, ap, nap, 0);
}
