1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
#include "goomsl_hash.h"
#include <string.h>
#include <stdlib.h>
static GoomHashEntry *
entry_new (const char *key, HashValue value)
{
int len = strlen (key);
GoomHashEntry *entry = (GoomHashEntry *) malloc (sizeof (GoomHashEntry));
entry->key = (char *) malloc (len + 1);
memcpy (entry->key, key, len + 1);
entry->value = value;
entry->lower = NULL;
entry->upper = NULL;
return entry;
}
static void
entry_free (GoomHashEntry * entry)
{
if (entry != NULL) {
entry_free (entry->lower);
entry_free (entry->upper);
free (entry->key);
free (entry);
}
}
static void
entry_put (GoomHashEntry * entry, const char *key, HashValue value)
{
int cmp = strcmp (key, entry->key);
if (cmp == 0) {
entry->value = value;
} else if (cmp > 0) {
if (entry->upper == NULL)
entry->upper = entry_new (key, value);
else
entry_put (entry->upper, key, value);
} else {
if (entry->lower == NULL)
entry->lower = entry_new (key, value);
else
entry_put (entry->lower, key, value);
}
}
static HashValue *
entry_get (GoomHashEntry * entry, const char *key)
{
int cmp;
if (entry == NULL)
return NULL;
cmp = strcmp (key, entry->key);
if (cmp > 0)
return entry_get (entry->upper, key);
else if (cmp < 0)
return entry_get (entry->lower, key);
else
return &(entry->value);
}
GoomHash *
goom_hash_new ()
{
GoomHash *_this = (GoomHash *) malloc (sizeof (GoomHash));
_this->root = NULL;
_this->number_of_puts = 0;
return _this;
}
void
goom_hash_free (GoomHash * _this)
{
entry_free (_this->root);
free (_this);
}
void
goom_hash_put (GoomHash * _this, const char *key, HashValue value)
{
_this->number_of_puts += 1;
if (_this->root == NULL)
_this->root = entry_new (key, value);
else
entry_put (_this->root, key, value);
}
HashValue *
goom_hash_get (GoomHash * _this, const char *key)
{
if (_this == NULL)
return NULL;
return entry_get (_this->root, key);
}
void
goom_hash_put_int (GoomHash * _this, const char *key, int i)
{
HashValue value;
value.i = i;
goom_hash_put (_this, key, value);
}
void
goom_hash_put_float (GoomHash * _this, const char *key, float f)
{
HashValue value;
value.f = f;
goom_hash_put (_this, key, value);
}
void
goom_hash_put_ptr (GoomHash * _this, const char *key, void *ptr)
{
HashValue value;
value.ptr = ptr;
goom_hash_put (_this, key, value);
}
/* FOR EACH */
static void
_goom_hash_for_each (GoomHash * _this, GoomHashEntry * entry, GH_Func func)
{
if (entry == NULL)
return;
func (_this, entry->key, &(entry->value));
_goom_hash_for_each (_this, entry->lower, func);
_goom_hash_for_each (_this, entry->upper, func);
}
void
goom_hash_for_each (GoomHash * _this, GH_Func func)
{
_goom_hash_for_each (_this, _this->root, func);
}
int
goom_hash_number_of_puts (GoomHash * _this)
{
return _this->number_of_puts;
}
|
