refactor(server): clean code

src/utils/utils.c

@@ -1,10 +1,14 @@
 #include "utils/utils.h"
 
+#include <fcntl.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+volatile sig_atomic_t cws_server_run = 1;
+
 static void cws_utils_convert_ip(int family, void *addr, char *ip, size_t ip_len) { inet_ntop(family, addr, ip, ip_len); }
 
 void cws_utils_get_client_ip(struct sockaddr_storage *sa, char *ip) {
@@ -17,6 +21,16 @@ void cws_utils_get_client_ip(struct sockaddr_storage *sa, char *ip) {
 	}
 }
 
+cws_server_ret cws_fd_set_nonblocking(int sockfd) {
+	const int status = fcntl(sockfd, F_SETFL, O_NONBLOCK);
+
+	if (status == -1) {
+		return CWS_SERVER_FD_NONBLOCKING_ERROR;
+	}
+
+	return CWS_SERVER_OK;
+}
+
 unsigned int my_str_hash_fn(const void *key) {
 	char *key_str = (char *)key;
 	size_t key_len = strlen(key_str);
@@ -55,6 +69,6 @@ bool my_int_equal_fn(const void *a, const void *b) {
 
 void my_int_free_key_fn(void *key) {
 	int fd = *(int *)key;
-	close(fd);
+	sock_close(fd);
 	free(key);
 }