alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-30 19:19:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

refactor (nvs)!: New interface for iterator functions

Browse Source 
Closes https://github.com/espressif/esp-idf/issues/7826

* nvs_entry_find(), nvs_entry_next() and nvs_entry_info()
  return error codes now
* nvs_entry_find() and nvs_entry_next() access/modify iterator via
  parameters, instead of returning an new iterator.

Added appropriate documentation in Chinese and English
This commit is contained in:
Jakob Hasse
2022-05-11 18:49:55 +08:00
parent 769bc9b2d2
commit ad184e979a
9 changed files with 322 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
examples/system/console/advanced/components/cmd_nvs/cmd_nvs.c
View File

@@ -374,20 +374,31 @@ static int list(const char *part, const char *name, const char *str_type)
{
nvs_type_t type = str_to_type(str_type);
nvs_iterator_t it = nvs_entry_find(part, NULL, type);
if (it == NULL) {
ESP_LOGE(TAG, "No such enty was found");
nvs_iterator_t it = NULL;
esp_err_t result = nvs_entry_find(part, NULL, type, &it);
if (result == ESP_ERR_NVS_NOT_FOUND) {
ESP_LOGE(TAG, "No such entry was found");
return 1;
}
if (result != ESP_OK) {
ESP_LOGE(TAG, "NVS error: %s", esp_err_to_name(result));
return 1;
}
do {
nvs_entry_info_t info;
nvs_entry_info(it, &info);
it = nvs_entry_next(it);
result = nvs_entry_next(&it);
printf("namespace '%s', key '%s', type '%s' \n",
info.namespace_name, info.key, type_to_str(info.type));
} while (it != NULL);
} while (result == ESP_OK);
if (result != ESP_ERR_NVS_NOT_FOUND) { // the last iteration ran into an internal error
ESP_LOGE(TAG, "NVS error %s at current iteration, stopping.", esp_err_to_name(result));
return 1;
}
return 0;
}