1 | #include "config.h"
|
---|
2 | #include "f2c.h"
|
---|
3 | #include "fio.h"
|
---|
4 |
|
---|
5 | #ifdef KR_headers
|
---|
6 | c_due(a) cilist *a;
|
---|
7 | #else
|
---|
8 | c_due(cilist *a)
|
---|
9 | #endif
|
---|
10 | {
|
---|
11 | if(f__init != 1) f_init();
|
---|
12 | f__init = 3;
|
---|
13 | if(a->ciunit>=MXUNIT || a->ciunit<0)
|
---|
14 | err(a->cierr,101,"startio");
|
---|
15 | f__sequential=f__formatted=f__recpos=0;
|
---|
16 | f__external=1;
|
---|
17 | f__curunit = &f__units[a->ciunit];
|
---|
18 | if(a->ciunit>=MXUNIT || a->ciunit<0)
|
---|
19 | err(a->cierr,101,"startio");
|
---|
20 | f__elist=a;
|
---|
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");
|
---|
26 | if(a->cirec <= 0)
|
---|
27 | err(a->cierr,130,"due");
|
---|
28 | FSEEK(f__cf,(off_t)(a->cirec-1)*f__curunit->url,SEEK_SET);
|
---|
29 | f__curunit->uend = 0;
|
---|
30 | return(0);
|
---|
31 | }
|
---|
32 | #ifdef KR_headers
|
---|
33 | integer s_rdue(a) cilist *a;
|
---|
34 | #else
|
---|
35 | integer s_rdue(cilist *a)
|
---|
36 | #endif
|
---|
37 | {
|
---|
38 | int n;
|
---|
39 | f__reading=1;
|
---|
40 | if(n=c_due(a)) return(n);
|
---|
41 | if(f__curunit->uwrt && f__nowreading(f__curunit))
|
---|
42 | err(a->cierr,errno,"read start");
|
---|
43 | return(0);
|
---|
44 | }
|
---|
45 | #ifdef KR_headers
|
---|
46 | integer s_wdue(a) cilist *a;
|
---|
47 | #else
|
---|
48 | integer s_wdue(cilist *a)
|
---|
49 | #endif
|
---|
50 | {
|
---|
51 | int n;
|
---|
52 | f__reading=0;
|
---|
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");
|
---|
56 | return(0);
|
---|
57 | }
|
---|
58 | integer e_rdue(Void)
|
---|
59 | {
|
---|
60 | f__init = 1;
|
---|
61 | if(f__curunit->url==1 || f__recpos==f__curunit->url)
|
---|
62 | return(0);
|
---|
63 | FSEEK(f__cf,(off_t)(f__curunit->url-f__recpos),SEEK_CUR);
|
---|
64 | if(FTELL(f__cf)%f__curunit->url)
|
---|
65 | err(f__elist->cierr,200,"syserr");
|
---|
66 | return(0);
|
---|
67 | }
|
---|
68 | integer e_wdue(Void)
|
---|
69 | {
|
---|
70 | f__init = 1;
|
---|
71 | #ifdef ALWAYS_FLUSH
|
---|
72 | if (fflush(f__cf))
|
---|
73 | err(f__elist->cierr,errno,"write end");
|
---|
74 | #endif
|
---|
75 | return(e_rdue());
|
---|
76 | }
|
---|