12 static void dns_cache_clean(struct dns_cache const *cache);
14 int dns_cache_flush(struct dns_cache *cache)  in dns_cache_flush()  argument
16 	k_mutex_lock(cache->lock, K_FOREVER);  in dns_cache_flush()
17 	for (size_t i = 0; i < cache->size; i++) {  in dns_cache_flush()
18 		cache->entries[i].in_use = false;  in dns_cache_flush()
20 	k_mutex_unlock(cache->lock);  in dns_cache_flush()
25 int dns_cache_add(struct dns_cache *cache, char const *query, struct dns_addrinfo const *addrinfo,  in dns_cache_add()  argument
32 	if (cache == NULL || query == NULL || addrinfo == NULL || ttl == 0) {  in dns_cache_add()
43 	k_mutex_lock(cache->lock, K_FOREVER);  in dns_cache_add()
47 	dns_cache_clean(cache);  in dns_cache_add()
49 	for (size_t i = 0; i < cache->size; i++) {  in dns_cache_add()
50 		if (!cache->entries[i].in_use) {  in dns_cache_add()
54 		} else if (sys_timepoint_cmp(closest_to_expiry, cache->entries[i].expiry) > 0) {  in dns_cache_add()
56 			closest_to_expiry = cache->entries[i].expiry;  in dns_cache_add()
61 		NET_DBG("Overwrite \"%s\"", cache->entries[index_to_replace].query);  in dns_cache_add()
64 	strncpy(cache->entries[index_to_replace].query, query,  in dns_cache_add()
66 	cache->entries[index_to_replace].data = *addrinfo;  in dns_cache_add()
67 	cache->entries[index_to_replace].expiry = sys_timepoint_calc(K_SECONDS(ttl));  in dns_cache_add()
68 	cache->entries[index_to_replace].in_use = true;  in dns_cache_add()
70 	k_mutex_unlock(cache->lock);  in dns_cache_add()
75 int dns_cache_remove(struct dns_cache *cache, char const *query)  in dns_cache_remove()  argument
85 	k_mutex_lock(cache->lock, K_FOREVER);  in dns_cache_remove()
87 	dns_cache_clean(cache);  in dns_cache_remove()
89 	for (size_t i = 0; i < cache->size; i++) {  in dns_cache_remove()
90 		if (cache->entries[i].in_use && strcmp(cache->entries[i].query, query) == 0) {  in dns_cache_remove()
91 			cache->entries[i].in_use = false;  in dns_cache_remove()
95 	k_mutex_unlock(cache->lock);  in dns_cache_remove()
100 int dns_cache_find(struct dns_cache const *cache, const char *query, struct dns_addrinfo *addrinfo,  in dns_cache_find()  argument
106 	if (cache == NULL || query == NULL || addrinfo == NULL || addrinfo_array_len <= 0) {  in dns_cache_find()
116 	k_mutex_lock(cache->lock, K_FOREVER);  in dns_cache_find()
118 	dns_cache_clean(cache);  in dns_cache_find()
120 	for (size_t i = 0; i < cache->size; i++) {  in dns_cache_find()
121 		if (!cache->entries[i].in_use) {  in dns_cache_find()
124 		if (strcmp(cache->entries[i].query, query) != 0) {  in dns_cache_find()
131 			addrinfo[found] = cache->entries[i].data;  in dns_cache_find()
137 	k_mutex_unlock(cache->lock);  in dns_cache_find()
150 static void dns_cache_clean(struct dns_cache const *cache)  in dns_cache_clean()  argument
152 	for (size_t i = 0; i < cache->size; i++) {  in dns_cache_clean()
153 		if (!cache->entries[i].in_use) {  in dns_cache_clean()
157 		if (sys_timepoint_expired(cache->entries[i].expiry)) {  in dns_cache_clean()
158 			NET_DBG("Remove \"%s\"", cache->entries[i].query);  in dns_cache_clean()
159 			cache->entries[i].in_use = false;  in dns_cache_clean()