11 if(f__init != 1) f_init();
13 if(a->ciunit>=MXUNIT || a->ciunit<0)
14 err(a->cierr,101,"startio");
15 f__sequential=f__formatted=f__recpos=0;
17 f__curunit = &f__units[a->ciunit];
18 if(a->ciunit>=MXUNIT || a->ciunit<0)
19 err(a->cierr,101,"startio");
21 if(f__curunit->ufd==NULL && fk_open(DIR,UNF,a->ciunit) ) err(a->cierr,104,"due");
22 f__cf=f__curunit->ufd;
23 if(f__curunit->ufmt) err(a->cierr,102,"cdue");
24 if(!f__curunit->useek) err(a->cierr,104,"cdue");
25 if(f__curunit->ufd==NULL) err(a->cierr,114,"cdue");
27 err(a->cierr,130,"due");
28 FSEEK(f__cf,(a->cirec-1)*f__curunit->url,SEEK_SET);
33 integer s_rdue(a) cilist *a;
35 integer s_rdue(cilist *a)
40 if(n=c_due(a)) return(n);
41 if(f__curunit->uwrt && f__nowreading(f__curunit))
42 err(a->cierr,errno,"read start");
46 integer s_wdue(a) cilist *a;
48 integer s_wdue(cilist *a)
53 if(n=c_due(a)) return(n);
54 if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit))
55 err(a->cierr,errno,"write start");
61 if(f__curunit->url==1 || f__recpos==f__curunit->url)
63 FSEEK(f__cf,(f__curunit->url-f__recpos),SEEK_CUR);
64 if(FTELL(f__cf)%f__curunit->url)
65 err(f__elist->cierr,200,"syserr");
73 err(f__elist->cierr,errno,"write end");