uint
fileload(File *f, uint p0, int fd, int *nulls)
{
if(f->seq > 0)
error("undo in file.load unimplemented");
return bufload(&f->b, p0, fd, nulls);
}
uint
fileload(File *f, uint p0, int fd, int *nulls)
{
if(f->seq > 0)
panic("undo in file.load unimplemented");
return bufload(&f->Buffer, p0, fd, nulls);
}
void
getsnarf()
{
int nulls;
if(snarfbuf.nc > MAXSNARF)
return;
if(snarffd < 0)
return;
seek(snarffd, 0, 0);
bufreset(&snarfbuf);
bufload(&snarfbuf, 0, snarffd, &nulls);
}
Posn
readio(File *f, int *nulls, int setdate, int toterm)
{
int n, b, w;
Rune *r;
Posn nt;
Posn p = addr.r.p2;
uint32_t dev;
uint64_t qid;
int32_t mtime;
char buf[BLOCKSIZE+1], *s;
*nulls = FALSE;
b = 0;
if(f->unread){
nt = bufload(f, 0, io, nulls);
if(toterm)
raspload(f);
}else
for(nt = 0; (n = read(io, buf+b, BLOCKSIZE-b))>0; nt+=(r-genbuf)){
n += b;
b = 0;
r = genbuf;
s = buf;
while(n > 0){
if((*r = *(uint8_t*)s) < Runeself){
if(*r)
r++;
else
*nulls = TRUE;
--n;
s++;
continue;
}
if(fullrune(s, n)){
w = chartorune(r, s);
if(*r)
r++;
else
*nulls = TRUE;
n -= w;
s += w;
continue;
}
b = n;
memmove(buf, s, b);
break;
}
loginsert(f, p, genbuf, r-genbuf);
}
if(b)
*nulls = TRUE;
if(*nulls)
warn(Wnulls);
if(setdate){
if(statfd(io, &dev, &qid, &mtime, 0, 0) > 0){
f->dev = dev;
f->qidpath = qid;
f->mtime = mtime;
checkqid(f);
}
}
return nt;
}
