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mdns: Add asynchronous query API

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Closes https://github.com/espressif/esp-idf/issues/7090


* Original commit: espressif/esp-idf@d81482d699
This commit is contained in:
David Cermak
2021-06-03 16:56:12 +02:00
committed by suren-gabrielyan-espressif
parent 40da0d29be
commit 47c7266103
4 changed files with 145 additions and 2 deletions
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46
components/mdns/mdns.c
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@ -5292,6 +5292,52 @@ void mdns_query_results_free(mdns_result_t * results)
}
}
esp_err_t mdns_query_async_delete(mdns_search_once_t* search)
{
if (!search) {
return ESP_ERR_INVALID_ARG;
}
if (search->state != SEARCH_OFF) {
return ESP_ERR_INVALID_STATE;
}
MDNS_SERVICE_LOCK();
_mdns_search_free(search);
MDNS_SERVICE_UNLOCK();
return ESP_OK;
}
bool mdns_query_async_get_results(mdns_search_once_t* search, uint32_t timeout, mdns_result_t ** results)
{
if (xSemaphoreTake(search->done_semaphore, pdMS_TO_TICKS(timeout)) == pdTRUE) {
*results = search->result;
return true;
}
return false;
}
mdns_search_once_t* mdns_query_async_new(const char * name, const char * service, const char * proto, uint16_t type, uint32_t timeout, size_t max_results)
{
mdns_search_once_t *search = NULL;
if (!_mdns_server || !timeout || _str_null_or_empty(service) != _str_null_or_empty(proto)) {
return NULL;
}
search = _mdns_search_init(name, service, proto, type, timeout, max_results);
if (!search) {
return NULL;
}
if (_mdns_send_search_action(ACTION_SEARCH_ADD, search)) {
_mdns_search_free(search);
return NULL;
}
return search;
}
esp_err_t mdns_query(const char * name, const char * service, const char * proto, uint16_t type, uint32_t timeout, size_t max_results, mdns_result_t ** results)
{
mdns_search_once_t * search = NULL;