refactor(server): clean code

include/utils/utils.h

@@ -4,6 +4,33 @@
 #include <myclib/mysocket.h>
 #include <stdbool.h>
 
+typedef enum cws_server_ret {
+	CWS_SERVER_OK,
+	CWS_SERVER_CONFIG,
+	CWS_SERVER_FD_ERROR,
+	CWS_SERVER_CLIENT_NOT_FOUND,
+	CWS_SERVER_CLIENT_DISCONNECTED,
+	CWS_SERVER_CLIENT_DISCONNECTED_ERROR,
+	CWS_SERVER_HTTP_PARSE_ERROR,
+	CWS_SERVER_GETADDRINFO_ERROR,
+	CWS_SERVER_SOCKET_ERROR,
+	CWS_SERVER_SETSOCKOPT_ERROR,
+	CWS_SERVER_BIND_ERROR,
+	CWS_SERVER_LISTEN_ERROR,
+	CWS_SERVER_EPOLL_ADD_ERROR,
+	CWS_SERVER_EPOLL_DEL_ERROR,
+	CWS_SERVER_FD_NONBLOCKING_ERROR,
+	CWS_SERVER_ACCEPT_CLIENT_ERROR,
+	CWS_SERVER_HASHMAP_INIT,
+	CWS_SERVER_MALLOC_ERROR,
+	CWS_SERVER_REQUEST_TOO_LARGE,
+	CWS_SERVER_THREADPOOL_ERROR,
+	CWS_SERVER_EPOLL_CREATE_ERROR,
+	CWS_SERVER_WORKER_ERROR,
+} cws_server_ret;
+
+cws_server_ret cws_fd_set_nonblocking(int sockfd);
+
 void cws_utils_get_client_ip(struct sockaddr_storage *sa, char *ip);
 
 /* Functions used for hash maps */