8 /* I use the ex_data stuff to manage the identifiers for the obj_name_types
9 * that applications may define. I only really use the free function field.
11 static LHASH *names_lh=NULL;
12 static int names_type_num=OBJ_NAME_TYPE_NUM;
13 static STACK *names_cmp=NULL;
14 static STACK *names_hash=NULL;
15 static STACK *names_free=NULL;
17 static unsigned long obj_name_hash(OBJ_NAME *a);
18 static int obj_name_cmp(OBJ_NAME *a,OBJ_NAME *b);
22 if (names_lh != NULL) return(1);
24 names_lh=lh_new(obj_name_hash,obj_name_cmp);
26 return(names_lh != NULL);
29 int OBJ_NAME_new_index(hash_func,cmp_func,free_func)
30 unsigned long (*hash_func)();
37 if (names_free == NULL)
40 names_hash=sk_new_null();
41 names_cmp=sk_new_null();
42 names_free=sk_new_null();
45 if ((names_free == NULL) || (names_hash == NULL) || (names_cmp == NULL))
52 for (i=sk_num(names_free); i<names_type_num; i++)
55 sk_push(names_hash,(char *)strcmp);
56 sk_push(names_cmp,(char *)lh_strhash);
57 sk_push(names_free,NULL);
60 if (hash_func != NULL)
61 sk_value(names_hash,ret)=(char *)hash_func;
63 sk_value(names_cmp,ret)= (char *)cmp_func;
64 if (free_func != NULL)
65 sk_value(names_free,ret)=(char *)free_func;
69 static int obj_name_cmp(a,b)
79 if ((names_cmp != NULL) && (sk_num(names_cmp) > a->type))
81 cmp=(int (*)())sk_value(names_cmp,a->type);
82 ret=cmp(a->name,b->name);
85 ret=strcmp(a->name,b->name);
90 static unsigned long obj_name_hash(a)
94 unsigned long (*hash)();
96 if ((names_hash != NULL) && (sk_num(names_hash) > a->type))
98 hash=(unsigned long (*)())sk_value(names_hash,a->type);
103 ret=lh_strhash(a->name);
109 char *OBJ_NAME_get(name,type)
116 if (name == NULL) return(NULL);
117 if ((names_lh == NULL) && !OBJ_NAME_init()) return(NULL);
119 alias=type&OBJ_NAME_ALIAS;
120 type&= ~OBJ_NAME_ALIAS;
127 ret=(OBJ_NAME *)lh_retrieve(names_lh,(char *)&on);
128 if (ret == NULL) return(NULL);
129 if ((ret->alias) && !alias)
131 if (++num > 10) return(NULL);
141 int OBJ_NAME_add(name,type,data)
150 if ((names_lh == NULL) && !OBJ_NAME_init()) return(0);
152 alias=type&OBJ_NAME_ALIAS;
153 type&= ~OBJ_NAME_ALIAS;
155 onp=(OBJ_NAME *)Malloc(sizeof(OBJ_NAME));
167 ret=(OBJ_NAME *)lh_insert(names_lh,(char *)onp);
171 if ((names_free != NULL) && (sk_num(names_free) > ret->type))
173 f=(void (*)())sk_value(names_free,ret->type);
174 f(ret->name,ret->type,ret->data);
180 if (lh_error(names_lh))
189 int OBJ_NAME_remove(name,type)
196 if (names_lh == NULL) return(0);
198 type&= ~OBJ_NAME_ALIAS;
201 ret=(OBJ_NAME *)lh_delete(names_lh,(char *)&on);
205 if ((names_free != NULL) && (sk_num(names_free) > type))
207 f=(void (*)())sk_value(names_free,type);
208 f(ret->name,ret->type,ret->data);
217 static int free_type;
219 static void names_lh_free(onp,type)
225 if ((free_type < 0) || (free_type == onp->type))
227 OBJ_NAME_remove(onp->name,onp->type);
231 void OBJ_NAME_cleanup(type)
234 unsigned long down_load;
236 if (names_lh == NULL) return;
239 down_load=names_lh->down_load;
240 names_lh->down_load=0;
242 lh_doall(names_lh,names_lh_free);
255 names_lh->down_load=down_load;