-extern int ssl_send_data(mbedtls_ssl_context * ssl, const unsigned char * buf, size_t len);
-extern int ssl_recv_data(mbedtls_ssl_context * ssl, unsigned char * buf, size_t maxLen);
-extern long ssl_flush_socket(mbedtls_ssl_context * ssl, struct iob *iob);
+extern int ssl_send_data(mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len);
+extern int ssl_send_data_delayed(mbedtls_ssl_context *ssl, const unsigned char *buf,
+ size_t len, unsigned int delay);
+extern int ssl_recv_data(mbedtls_ssl_context *ssl, unsigned char *buf, size_t maxLen);
+extern long ssl_flush_socket(mbedtls_ssl_context *ssl, struct iob *iob);