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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
#include "config.h"
#include "json-types.h"
#include "json-private.h"
/**
* SECTION:json-array
* @short_description: a JSON array representation
*
*/
struct _JsonArray
{
GPtrArray *elements;
volatile gint ref_count;
};
JsonArray *
json_array_new (void)
{
JsonArray *array;
array = g_slice_new (JsonArray);
array->ref_count = 1;
array->elements = g_ptr_array_new ();
return array;
}
JsonArray *
json_array_sized_new (guint n_elements)
{
JsonArray *array;
array = g_slice_new (JsonArray);
array->ref_count = 1;
array->elements = g_ptr_array_sized_new (n_elements);
return array;
}
/**
* json_array_ref:
* @array: a #JsonArray
*
* Increase by one the reference count of a #JsonArray.
*
* Return value: the passed #JsonArray, with the reference count
* increased by one.
*/
JsonArray *
json_array_ref (JsonArray *array)
{
g_return_val_if_fail (array != NULL, NULL);
g_return_val_if_fail (array->ref_count > 0, NULL);
g_atomic_int_exchange_and_add (&array->ref_count, 1);
return array;
}
/**
* json_array_unref:
* @array: a #JsonArray
*
* Decreases by one the reference count of a #JsonArray. If the
* reference count reaches zero, the array is destroyed and all
* its allocated resources are freed.
*/
void
json_array_unref (JsonArray *array)
{
gint old_ref;
g_return_if_fail (array != NULL);
g_return_if_fail (array->ref_count > 0);
old_ref = g_atomic_int_get (&array->ref_count);
if (old_ref > 1)
g_atomic_int_compare_and_exchange (&array->ref_count, old_ref, old_ref - 1);
else
{
gint i;
for (i = 0; i < array->elements->len; i++)
json_node_free (g_ptr_array_index (array->elements, i));
g_ptr_array_free (array->elements, TRUE);
array->elements = NULL;
g_slice_free (JsonArray, array);
}
}
/**
* json_array_get_elements:
* @array: a #JsonArray
*
* Gets the elements of a #JsonArray as a list of #JsonNode<!-- -->s.
*
* Return value: a #GList containing the elements of the array. The
* contents of the list are owned by the array and should never be
* modified or freed. Use g_list_free() on the returned list when
* done using it
*/
GList *
json_array_get_elements (JsonArray *array)
{
GList *retval;
guint i;
g_return_val_if_fail (array != NULL, NULL);
retval = NULL;
for (i = 0; i < array->elements->len; i++)
retval = g_list_prepend (retval,
g_ptr_array_index (array->elements, i));
return g_list_reverse (retval);
}
/**
* json_array_get_element:
* @array: a #JsonArray
* @index_: the index of the element to retrieve
*
* Retrieves the element at @index_ inside a #JsonArray.
*
* Return value: a pointer to the #JsonNode at the requested index
*/
JsonNode *
json_array_get_element (JsonArray *array,
guint index_)
{
g_return_val_if_fail (array != NULL, NULL);
g_return_val_if_fail (index_ < array->elements->len, NULL);
return g_ptr_array_index (array->elements, index_);
}
/**
* json_array_get_length:
* @array: a #JsonArray
*
* Retrieves the length of a #JsonArray
*
* Return value: the length of the array
*/
guint
json_array_get_length (JsonArray *array)
{
g_return_val_if_fail (array != NULL, 0);
return array->elements->len;
}
void
json_array_add_element (JsonArray *array,
JsonNode *node)
{
g_return_if_fail (array != NULL);
g_return_if_fail (node != NULL);
g_ptr_array_add (array->elements, node);
}
|
