src/bindings/python/bt2/bt2/native_bt_value.i.h

   1 /*
   2  * The MIT License (MIT)
   3  *
   4  * Copyright (c) 2016 Philippe Proulx <pproulx@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 struct bt_value_map_get_keys_data {
  26         struct bt_value *keys;
  27 };
  28
  29 static bt_value_map_foreach_entry_const_func_status bt_value_map_get_keys_cb(
  30                 const char *key, const struct bt_value *object, void *data)
  31 {
  32         int status;
  33         struct bt_value_map_get_keys_data *priv_data = data;
  34
  35         status = bt_value_array_append_string_element(priv_data->keys, key);
  36         BT_ASSERT(status == __BT_FUNC_STATUS_OK ||
  37                 status == __BT_FUNC_STATUS_MEMORY_ERROR);
  38         return status;
  39 }
  40
  41 static struct bt_value *bt_value_map_get_keys(const struct bt_value *map_obj)
  42 {
  43         bt_value_map_foreach_entry_const_status status;
  44         struct bt_value_map_get_keys_data data;
  45
  46         data.keys = bt_value_array_create();
  47         if (!data.keys) {
  48                 return NULL;
  49         }
  50
  51         status = bt_value_map_foreach_entry_const(map_obj, bt_value_map_get_keys_cb,
  52                 &data);
  53         if (status != __BT_FUNC_STATUS_OK) {
  54                 goto error;
  55         }
  56
  57         goto end;
  58
  59 error:
  60         if (data.keys) {
  61                 BT_VALUE_PUT_REF_AND_RESET(data.keys);
  62         }
  63
  64 end:
  65         return data.keys;
  66 }