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nvs_release_iterator() function
Release iterator
Syntax
Implemented in ![]()
nvs_api.cpp:878
Related Functions
Found 10 other functions taking a ![]()
nvs_opaque_iterator_t
argument:
Function
Description
Advances the iterator to next item matching the iterator criteria. Note that any copies of the iterator will be invalid after this call.
Fills nvs_entry_info_t structure with information about entry pointed to by the iterator.
Create an iterator to enumerate NVS entries based on one or more parameters
{c}
// Example of listing all the key-value pairs of any type under specified partition and namespace
nvs_iterator_t it = NULL;
esp_err_t res = nvs_entry_find(, , NVS_TYPE_ANY, &it);
while(res == ESP_OK) {
nvs_entry_info_t info;
nvs_entry_info(it, &info); // Can omit error check if parameters are guaranteed to be non-NULL
printf("key '%s', type '%d' \n", info.key, info.type);
res = nvs_entry_next(&it);
}
nvs_release_iterator(it);
Create an iterator to enumerate NVS entries based on a handle and type
{c}
// Example of listing all the key-value pairs of any type under specified handle (which defines a partition and namespace)
nvs_iterator_t it = NULL;
esp_err_t res = nvs_entry_find_in_handle(, NVS_TYPE_ANY, &it);
while(res == ESP_OK) {
nvs_entry_info_t info;
nvs_entry_info(it, &info); // Can omit error check if parameters are guaranteed to be non-NULL
printf("key '%s', type '%d' \n", info.key, info.type);
res = nvs_entry_next(&it);
}
nvs_release_iterator(it);