1 |
– |
/* Copyright (c) 1986 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
< |
* otypes.c - object lookup functions. |
5 |
> |
* Object type lookup and error reporting |
6 |
|
* |
7 |
< |
* 7/29/85 |
7 |
> |
* External symbols declared in object.h |
8 |
|
*/ |
9 |
|
|
10 |
+ |
#include "copyright.h" |
11 |
+ |
|
12 |
|
#include "standard.h" |
13 |
|
|
14 |
|
#include "object.h" |
16 |
|
#include "otypes.h" |
17 |
|
|
18 |
|
|
20 |
– |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* our object function table */ |
21 |
– |
|
22 |
– |
static struct ohtab { |
23 |
– |
int hsiz; /* current table size */ |
24 |
– |
OBJECT *htab; /* table, if allocated */ |
25 |
– |
} modtab = {100, NULL}, objtab = {1000, NULL}; /* modifiers and objects */ |
26 |
– |
|
27 |
– |
|
19 |
|
int |
20 |
< |
otype(ofname) /* get object function number from its name */ |
21 |
< |
register char *ofname; |
20 |
> |
otype( /* get object function number from its name */ |
21 |
> |
char *ofname |
22 |
> |
) |
23 |
|
{ |
24 |
< |
register int i; |
24 |
> |
int i; |
25 |
|
|
26 |
|
for (i = 0; i < NUMOTYPE; i++) |
27 |
< |
if (!strcmp(ofun[i].funame, ofname)) |
27 |
> |
if (ofun[i].funame[0] == ofname[0] && |
28 |
> |
!strcmp(ofun[i].funame, ofname)) |
29 |
|
return(i); |
30 |
|
|
31 |
|
return(-1); /* not found */ |
32 |
|
} |
33 |
|
|
34 |
|
|
35 |
< |
#ifdef GETOBJ |
36 |
< |
int |
37 |
< |
object(oname) /* get an object number from its name */ |
38 |
< |
char *oname; |
35 |
> |
void |
36 |
> |
objerror( /* report error related to object */ |
37 |
> |
OBJREC *o, |
38 |
> |
int etyp, |
39 |
> |
char *msg |
40 |
> |
) |
41 |
|
{ |
42 |
< |
register int ndx; |
42 |
> |
char msgbuf[512]; |
43 |
|
|
49 |
– |
ndx = otndx(oname, &objtab); |
50 |
– |
return(objtab.htab[ndx]); |
51 |
– |
} |
52 |
– |
#endif |
53 |
– |
|
54 |
– |
|
55 |
– |
int |
56 |
– |
modifier(mname) /* get a modifier number from its name */ |
57 |
– |
char *mname; |
58 |
– |
{ |
59 |
– |
register int ndx; |
60 |
– |
|
61 |
– |
ndx = otndx(mname, &modtab); |
62 |
– |
return(modtab.htab[ndx]); |
63 |
– |
} |
64 |
– |
|
65 |
– |
|
66 |
– |
insertobject(obj) /* insert new object into our list */ |
67 |
– |
register OBJECT obj; |
68 |
– |
{ |
69 |
– |
register int ndx; |
70 |
– |
|
71 |
– |
#ifdef GETOBJ |
72 |
– |
ndx = otndx(objptr(obj)->oname, &objtab); |
73 |
– |
objtab.htab[ndx] = obj; |
74 |
– |
#endif |
75 |
– |
if (ismodifier(objptr(obj)->otype)) { |
76 |
– |
ndx = otndx(objptr(obj)->oname, &modtab); |
77 |
– |
modtab.htab[ndx] = obj; |
78 |
– |
} |
79 |
– |
} |
80 |
– |
|
81 |
– |
|
82 |
– |
objerror(o, etyp, msg) /* report error related to object */ |
83 |
– |
OBJREC *o; |
84 |
– |
int etyp; |
85 |
– |
char *msg; |
86 |
– |
{ |
87 |
– |
char msgbuf[128]; |
88 |
– |
|
44 |
|
sprintf(msgbuf, "%s for %s \"%s\"", |
45 |
< |
msg, ofun[o->otype].funame, o->oname); |
45 |
> |
msg, ofun[o->otype].funame, |
46 |
> |
o->oname!=NULL ? o->oname : "(NULL)"); |
47 |
|
error(etyp, msgbuf); |
92 |
– |
} |
93 |
– |
|
94 |
– |
|
95 |
– |
static int |
96 |
– |
nexthsiz(oldsiz) /* return next hash table size */ |
97 |
– |
int oldsiz; |
98 |
– |
{ |
99 |
– |
static int hsiztab[] = { |
100 |
– |
251, 509, 1021, 2039, 4093, 8191, 16381, 0 |
101 |
– |
}; |
102 |
– |
register int *hsp; |
103 |
– |
|
104 |
– |
for (hsp = hsiztab; *hsp; hsp++) |
105 |
– |
if (*hsp > oldsiz) |
106 |
– |
return(*hsp); |
107 |
– |
return(oldsiz*2 + 1); /* not always prime */ |
108 |
– |
} |
109 |
– |
|
110 |
– |
|
111 |
– |
static int |
112 |
– |
shash(s) /* hash a string */ |
113 |
– |
register char *s; |
114 |
– |
{ |
115 |
– |
register int h = 0; |
116 |
– |
|
117 |
– |
while (*s) |
118 |
– |
h = (h<<1 & 0x7fff) ^ *s++; |
119 |
– |
return(h); |
120 |
– |
} |
121 |
– |
|
122 |
– |
|
123 |
– |
static int |
124 |
– |
otndx(name, tab) /* get object table index for name */ |
125 |
– |
char *name; |
126 |
– |
register struct ohtab *tab; |
127 |
– |
{ |
128 |
– |
OBJECT *oldhtab; |
129 |
– |
int hval, i; |
130 |
– |
register int ndx; |
131 |
– |
|
132 |
– |
if (tab->htab == NULL) { /* new table */ |
133 |
– |
tab->hsiz = nexthsiz(tab->hsiz); |
134 |
– |
tab->htab = (OBJECT *)malloc(tab->hsiz*sizeof(OBJECT)); |
135 |
– |
if (tab->htab == NULL) |
136 |
– |
error(SYSTEM, "out of memory in otndx"); |
137 |
– |
ndx = tab->hsiz; |
138 |
– |
while (ndx--) /* empty it */ |
139 |
– |
tab->htab[ndx] = OVOID; |
140 |
– |
} |
141 |
– |
/* look up object */ |
142 |
– |
hval = shash(name); |
143 |
– |
for (i = 0; i < tab->hsiz; i++) { |
144 |
– |
ndx = (hval + i*i) % tab->hsiz; |
145 |
– |
if (tab->htab[ndx] == OVOID || |
146 |
– |
!strcmp(objptr(tab->htab[ndx])->oname, name)) |
147 |
– |
return(ndx); |
148 |
– |
} |
149 |
– |
/* table is full, reallocate */ |
150 |
– |
oldhtab = tab->htab; |
151 |
– |
ndx = tab->hsiz; |
152 |
– |
tab->htab = NULL; |
153 |
– |
while (ndx--) |
154 |
– |
if (oldhtab[ndx] != OVOID) { |
155 |
– |
i = otndx(objptr(oldhtab[ndx])->oname, tab); |
156 |
– |
tab->htab[i] = oldhtab[ndx]; |
157 |
– |
} |
158 |
– |
free((char *)oldhtab); |
159 |
– |
return(otndx(name, tab)); |
48 |
|
} |