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#include "config.h"
#include "json-types.h"
#include "json-private.h"
struct _JsonArray
{
GValueArray *elements;
volatile guint ref_count;
};
JsonArray *
json_array_new (void)
{
JsonArray *array;
array = g_slice_new (JsonArray);
array->ref_count = 1;
array->elements = g_value_array_new (0);
return array;
}
JsonArray *
json_array_sized_new (guint n_elements)
{
JsonArray *array;
array = g_slice_new (JsonArray);
array->ref_count = 1;
array->elements = g_value_array_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
{
g_value_array_free (array->elements);
array->elements = NULL;
g_slice_free (JsonArray, array);
}
}
/**
* json_array_get_elements:
* @array: a #JsonArray
*
* Gets the elements of a #JsonArray in list form.
*
* 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->n_values; i++)
retval = g_list_prepend (retval,
g_value_array_get_nth (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 value at the requested position
*/
GValue *
json_array_get_element (JsonArray *array,
guint index_)
{
g_return_val_if_fail (array != NULL, NULL);
g_return_val_if_fail (index_ < array->elements->n_values, NULL);
return g_value_array_get_nth (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->n_values;
}
void
json_array_append_element (JsonArray *array,
const GValue *value)
{
g_return_if_fail (array != NULL);
g_value_array_append (array->elements, value);
}
void
json_array_prepend_element (JsonArray *array,
const GValue *value)
{
g_return_if_fail (array != NULL);
g_value_array_prepend (array->elements, value);
}
void
json_array_insert_element (JsonArray *array,
gint index_,
const GValue *value)
{
g_return_if_fail (array != NULL);
g_return_if_fail (index_ <= array->elements->n_values);
g_value_array_insert (array->elements, index_, value);
}
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