U [e:@sddlZddlmZddlZddlmZddlZddlmZzddlm Z Wn e k rlddl m Z YnXddl m Z mZddlZddlmZddlmZmZdd lmZdd lmZmZdd lmZmZmZdd lmZm Z dd l!m"Z"ddl#m$Z$m%Z%m&Z&m'Z'm(Z(e)e*Z+dddgZ,eddZ-GdddeZ.d$dde.dddZ/Gddde%Z0GdddZ1Gd d!d!Z2Gd"ddeZ3e d%ddd#dZ4dS)&N)contextmanager)count)Optional)asynccontextmanager)ValueError)Channel) AuthenticatorBEGIN)get_bus)FileDescriptor fds_buf_size)Parser MessageTypeMessage) ProxyBase unwrap_msg) message_bus)MessageFilters FilterHandle ReplyMatcher RouterClosedcheck_replyableopen_dbus_connectionopen_dbus_routerProxyc csdz dVWnTtk r^}z6|jtjtjhkr)r3r=r9sentr%r%r&r<^s   zDBusConnection._send_datarc svzJ|t|krB||d}|j|IdH}W5QRX||7}qd|_Wn&tjk rp||d|_YnXdSN)lenr*r>r2r!Z Cancelled)r3r=Z already_sent remainingrDr%r%r&r?qs   zDBusConnection._send_remainderreturnc s||j4IdH^|j}|dk r8|W5QIdHRS|IdH\}}|sXtd|j||qW5QIdHRXdS)z5Return the next available message from the connectionNzSocket closed at the other end)r1r,Zget_next_message _read_datar!Z EndOfChannelZadd_data)r3msgbr9r%r%r&receives  zDBusConnection.receivec s|jrp|j}t$|j|tIdH\}}}}W5QRX|ttjdd@rb| t d|t |fSt|j dIdH}W5QRX|gfSdS)N MSG_CTRUNCrz&Unable to receive all file descriptorsi)r+r,Z bytes_desiredr'r*recvmsgr getattrr!_close RuntimeErrorr Z from_ancdatarecv)r3nbytesr=Zancdataflags_r%r%r&rJs zDBusConnection._read_datacCs|jd|_dSrE)r*closer2r3r%r%r&rQs zDBusConnection._closecs |dS)zClose the D-Bus connectionN)rQrXr%r%r&acloseszDBusConnection.aclosec CsZt4IdH:}t|}||IdHz |VW5|IdHXW5QIdHRXdS)aYTemporarily wrap this connection as a :class:`DBusRouter` To be used like:: async with conn.router() as req: reply = await req.send_and_get_reply(msg) While the router is running, you shouldn't use :meth:`receive`. Once the router is closed, you can use the plain connection again. N)r!Z open_nursery DBusRouterr)rY)r3nurseryrouterr%r%r&r\s  zDBusConnection.router)F)r)__name__ __module__ __qualname____doc__r4rr>bytesr<r@r?rMrJrQrYrr\r%r%r%r&r(?s  r(SESSIONFr+rHc st|}t|IdH}t|d}|D](}||IdH||IdHq&|tIdHt|j |d}| 4IdH&}| t IdH}|jd|_W5QIdHRX|S)zHOpen a plain D-Bus connection :return: :class:`DBusConnection` Nrcr)r r!Zopen_unix_socketr Zsend_allfeedZ receive_somer r(r*r\send_and_get_replyrZHellobodyr.) busr+Zbus_addrsockZauthrZreq_dataconnr\replyr%r%r&rs csFeZdZedfdd ZeddZddZdd Zd d Z Z S) TrioFilterHandle)filterscst|||||_dSrE)superr4 send_channel)r3rlruleZsend_chnZrecv_chn __class__r%r&r4szTrioFilterHandle.__init__cCs|jSrEqueuerXr%r%r&receive_channelsz TrioFilterHandle.receive_channelcs||jIdHdSrE)rWrnrYrXr%r%r&rYszTrioFilterHandle.aclosecs|jSrErrrXr%r%r& __aenter__szTrioFilterHandle.__aenter__cs|IdHdSrE)rY)r3exc_typeexc_valexc_tbr%r%r& __aexit__szTrioFilterHandle.__aexit__) r]r^r_rr4propertyrtrYrury __classcell__r%r%rpr&rks  rkc@s0eZdZdZddZddZddZdd Zd S) Futurez4A very simple Future for trio based on `trio.Event`.cCsd|_t|_dSrE)_outcomer!Event_eventrXr%r%r&r4szFuture.__init__cCst||_|jdSrE)rr}rset)r3resultr%r%r& set_results zFuture.set_resultcCst||_|jdSrE)rr}rr)r3r$r%r%r& set_exceptions zFuture.set_exceptioncs|jIdH|jSrE)rwaitr}unwraprXr%r%r&getsz Future.getN)r]r^r_r`r4rrrr%r%r%r&r|s r|c@seZdZdZdZdZedddZeddZ ddd d Z e d d d Z ddde ejdddZejdddZddZe dddZejfddZdS)rZzA client D-Bus connection which can wait for replies. This runs a separate receiver task and dispatches received messages. N)ricCs||_t|_t|_dSrE)_connr_repliesr_filters)r3rir%r%r&r4szDBusRouter.__init__cCs|jjSrE)rr.rXr%r%r&r. szDBusRouter.unique_namer5cs|jj||dIdHdS)z/Send a message, don't wait for a reply r5N)rr>)r3r7r6r%r%r&r>szDBusRouter.sendrHc spt||jdkrtdt|jj}|j|t0}|j ||dIdH| IdHW5QRSQRXdS)zSend a method call message and wait for the reply Returns the reply message (method return or error message type). NzThis DBusRouter has stoppedr5) r_rcv_cancel_scoperr:rr-rZcatchr|r>r)r3r7r6Z reply_futr%r%r&res  zDBusRouter.send_and_get_replyr)channelbufsize)rcCs,|dkrt|\}}nd}t|j|||S)aCreate a filter for incoming messages Usage:: async with router.filter(rule) as receive_channel: matching_msg = await receive_channel.receive() # OR: send_chan, recv_chan = trio.open_memory_channel(1) async with router.filter(rule, channel=send_chan): matching_msg = await recv_chan.receive() If the channel fills up, The sending end of the channel is closed when leaving the ``async with`` block, whether or not it was passed in. :param jeepney.MatchRule rule: Catch messages matching this rule :param trio.MemorySendChannel channel: Send matching messages here :param int bufsize: If no channel is passed in, create one with this size N)r!Zopen_memory_channelrkr)r3rorrZ recv_channelr%r%r&filter#szDBusRouter.filter)r[cs*|jdk rtd||jIdH|_dS)Nz+DBusRouter receiver task is already running)rrRr) _receiver)r3r[r%r%r&r)@s zDBusRouter.startcs.|jdk r|jd|_tdIdHdS)z Stop the sender & receiver tasksNr)rcancelr!sleeprXr%r%r&rYEs  zDBusRouter.aclose)rKc CsN|j|rdS|j|D],}z|j|Wqtjk rFYqXqdS)zHandle one received messageN)rdispatchrmatchesrnZ send_nowaitr!Z WouldBlock)r3rKrr%r%r& _dispatchRs zDBusRouter._dispatchcst}d|_||z |j IdH}||qW5d|_|jtd.}|jj D]}d|_ |j IdHqdW5QRXXW5QRXdS)z'Receiver loop - runs in a separate taskTFN)r!Z CancelScope is_runningstartedrZdrop_allZ move_on_afterrrlvaluesshieldrnrYrrMr)r3Z task_statusZcscopeZ cleanup_scoperrKr%r%r&r]s    zDBusRouter._receiver)r]r^r_r`Z _nursery_mgrrr(r4rzr.r>rrerr!ZMemorySendChannelrZNurseryr)rYrZTASK_STATUS_IGNOREDrr%r%r%r&rZs   rZcs(eZdZdZfddZddZZS)raA trio proxy for calling D-Bus methods You can call methods on the proxy object, such as ``await bus_proxy.Hello()`` to make a method call over D-Bus and wait for a reply. It will either return a tuple of returned data, or raise :exc:`.DBusErrorResponse`. The methods available are defined by the message generator you wrap. :param msggen: A message generator object. :param ~trio.DBusRouter router: Router to send and receive messages. cs(t|t|tstd||_dS)Nz)Proxy can only be used with DBusRequester)rmr4 isinstancerZ TypeError_router)r3Zmsggenr\rpr%r&r4~s  zProxy.__init__csfdd}|S)Ncs6||}|jjtjkstj|IdH}t|SrE)headerZ message_typer method_callAssertionErrorrrer)argskwargsrKrjmake_msgr3r%r&inners z!Proxy._method_call..innerr%)r3rrr%rr& _method_callszProxy._method_call)r]r^r_r`r4rr{r%r%rpr&rss c Cs\t||dIdH}|4IdH.|4IdH }|VW5QIdHRXW5QIdHRXdS)aOpen a D-Bus 'router' to send and receive messages. Use as an async context manager:: async with open_dbus_router() as req: ... :param str bus: 'SESSION' or 'SYSTEM' or a supported address. :return: :class:`DBusRouter` This is a shortcut for:: conn = await open_dbus_connection() async with conn: async with conn.router() as req: ... rcN)rr\)rgr+riZrtrr%r%r&rs)rb)rb)5r; contextlibrr itertoolsrloggingtypingrr ImportErrorasync_generatoroutcomerrr!Ztrio.abcrZ jeepney.authr r Z jeepney.busr Z jeepney.fdsr r Zjeepney.low_levelrrrZjeepney.wrappersrrZjeepney.bus_messagesrcommonrrrrr getLoggerr]log__all__r'r(rrkr|rZrrr%r%r%r&sD        ~u