add flags to recv and send calls

src/emper-echo-server.c

@@ -27,9 +27,9 @@ ssize_t send_all(int fd, const void* buf, size_t len) {
 	size_t bytes_written = 0;
 	while (bytes_written < len) {
 #ifdef USE_ASYNC_IO
-		ssize_t new_bytes_written = sync_send(fd, buf, len - bytes_written);
+		ssize_t new_bytes_written = sync_send(fd, buf, len - bytes_written, MSG_NOSIGNAL);
 #else
-		ssize_t new_bytes_written = send(fd, buf, len - bytes_written, 0);
+		ssize_t new_bytes_written = send(fd, buf, len - bytes_written, MSG_NOSIGNAL);
 #endif
 		if (unlikely(new_bytes_written < 1)) {
 			return new_bytes_written;
@@ -49,9 +49,9 @@ void client_func(void* arg) {
 	char buf[BUF_MAX];
 	for (;;) {
 #ifdef USE_ASYNC_IO
-		ssize_t bytes_recv = sync_recv(client_fd, (void*)&buf, BUF_MAX);
+		ssize_t bytes_recv = sync_recv(client_fd, (void*)&buf, BUF_MAX, MSG_WAITALL);
 #else
-		ssize_t bytes_recv = recv(client_fd, (void*)&buf, BUF_MAX);
+		ssize_t bytes_recv = recv(client_fd, (void*)&buf, BUF_MAX, MSG_WAITALL);
 #endif
 		// socket was shutdown
 		if (unlikely(bytes_recv == 0)) {