data: Added sdb_data_array_get().

[sysdb.git] / src / core / data.c

diff --git a/src/core/data.c b/src/core/data.c
index 8754f8868a11471fe1e359cee75ac0d52b87721d..a6cd092265a274a3f1c5b316d3f9ddffe30a0f81 100644 (file)
--- a/src/core/data.c
+++ b/src/core/data.c
@@ -650,6 +650,43 @@ sdb_data_inarray(const sdb_data_t *value, const sdb_data_t *array)
        return 0;
 } /* sdb_data_inarray */
 
+int
+sdb_data_array_get(const sdb_data_t *array, size_t i, sdb_data_t *value)
+{
+       sdb_data_t tmp = SDB_DATA_INIT;
+       int type;
+
+       if ((! array) || (! (array->type & SDB_TYPE_ARRAY)))
+               return -1;
+       if (i >= array->data.array.length)
+               return -1;
+
+       type = array->type & 0xff;
+       if (type == SDB_TYPE_INTEGER) {
+               int64_t *v = array->data.array.values;
+               tmp.data.integer = v[i];
+       }
+       else if (type == SDB_TYPE_DECIMAL) {
+               double *v = array->data.array.values;
+               tmp.data.decimal = v[i];
+       }
+       else if (type == SDB_TYPE_STRING) {
+               char **v = array->data.array.values;
+               tmp.data.string = v[i];
+       }
+       else {
+               /* TODO */
+               errno = ENOTSUP;
+               return -1;
+       }
+
+       if (value) {
+               *value = tmp;
+               value->type = type;
+       }
+       return 0;
+} /* sdb_data_array_get */
+
 int
 sdb_data_parse_op(const char *op)
 {