ÿØÿàJFIFÿþ ÿÛC       ÿÛC ÿÀÿÄÿÄ"#QrÿÄÿÄ&1!A"2qQaáÿÚ ?Øy,æ/3JæݹÈ߲؋5êXw²±ÉyˆR”¾I0ó2—PI¾IÌÚiMö¯–þrìN&"KgX:Šíµ•nTJnLK„…@!‰-ý ùúmë;ºgµŒ&ó±hw’¯Õ@”Ü— 9ñ-ë.²1<yà‚¹ïQÐU„ہ?.’¦èûbß±©Ö«Âw*VŒ) `$‰bØԟ’ëXÖ-ËTÜíGÚ3ð«g Ÿ§¯—Jx„–’U/ÂÅv_s(Hÿ@TñJÑãõçn­‚!ÈgfbÓc­:él[ðQe 9ÀPLbÃãCµm[5¿ç'ªjglå‡Ûí_§Úõl-;"PkÞÞÁQâ¼_Ñ^¢SŸx?"¸¦ùY騐ÒOÈ q’`~~ÚtËU¹CڒêV  I1Áß_ÿÙ"""Helper methods to tune a TCP connection""" import socket from contextlib import suppress __all__ = ('tcp_keepalive', 'tcp_nodelay', 'tcp_cork') if hasattr(socket, 'TCP_CORK'): # pragma: no cover CORK = socket.TCP_CORK elif hasattr(socket, 'TCP_NOPUSH'): # pragma: no cover CORK = socket.TCP_NOPUSH else: # pragma: no cover CORK = None if hasattr(socket, 'SO_KEEPALIVE'): def tcp_keepalive(transport): sock = transport.get_extra_info('socket') if sock is not None: sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1) else: def tcp_keepalive(transport): # pragma: no cover pass def tcp_nodelay(transport, value): sock = transport.get_extra_info('socket') if sock is None: return if sock.family not in (socket.AF_INET, socket.AF_INET6): return value = bool(value) # socket may be closed already, on windows OSError get raised with suppress(OSError): sock.setsockopt( socket.IPPROTO_TCP, socket.TCP_NODELAY, value) def tcp_cork(transport, value): sock = transport.get_extra_info('socket') if CORK is None: return if sock is None: return if sock.family not in (socket.AF_INET, socket.AF_INET6): return value = bool(value) with suppress(OSError): sock.setsockopt( socket.IPPROTO_TCP, CORK, value)