grthtrhthjhtyjytjytkergtrhtrjytjerhrfh4:24 29/09/2026a i h@s&dZddlZddlZddlZddlZeedr6ed7ZddlmZddlmZddlm Z dd lm Z dd lm Z dd l m Z dd lmZd ZddedddZd dedddZeedrd!dedddZd"dedddZGddde jZGdddee jZGdddZGdddZdS)#) StreamReader StreamWriterStreamReaderProtocolopen_connection start_serverNAF_UNIX)open_unix_connectionstart_unix_server) coroutines)events) exceptions)format_helpers) protocols)logger)sleepi)looplimitc sx|durt}ntjdtddt||d}t||d|jfdd||fi|IdH\}}t|||}||fS) aA wrapper for create_connection() returning a (reader, writer) pair. The reader returned is a StreamReader instance; the writer is a StreamWriter instance. The arguments are all the usual arguments to create_connection() except protocol_factory; most common are positional host and port, with various optional keyword arguments following. Additional optional keyword arguments are loop (to set the event loop instance to use) and limit (to set the buffer limit passed to the StreamReader). (If you want to customize the StreamReader and/or StreamReaderProtocol classes, just copy the code -- there's really nothing special here except some convenience.) N[The loop argument is deprecated since Python 3.8, and scheduled for removal in Python 3.10. stacklevelrrrcsSNrprotocolr'/usr/lib64/python3.9/asyncio/streams.py5z!open_connection..) r get_event_loopwarningswarnDeprecationWarningrrcreate_connectionr) hostportrrkwdsreader transport_writerrrrrs   rcsNdurtntjdtddfdd}j|||fi|IdHS)aStart a socket server, call back for each client connected. The first parameter, `client_connected_cb`, takes two parameters: client_reader, client_writer. client_reader is a StreamReader object, while client_writer is a StreamWriter object. This parameter can either be a plain callback function or a coroutine; if it is a coroutine, it will be automatically converted into a Task. The rest of the arguments are all the usual arguments to loop.create_server() except protocol_factory; most common are positional host and port, with various optional keyword arguments following. The return value is the same as loop.create_server(). Additional optional keyword arguments are loop (to set the event loop instance to use) and limit (to set the buffer limit passed to the StreamReader). The return value is the same as loop.create_server(), i.e. a Server object which can be used to stop the service. Nrrrcstd}t|d}|SNrrrrr)rclient_connected_cbrrrrfactoryXs  zstart_server..factory)r r!r"r#r$ create_server)r1r&r'rrr(r2rr0rr:s rcsv|durt}ntjdtddt||d}t||d|jfdd|fi|IdH\}}t|||}||fS) z@Similar to `open_connection` but works with UNIX Domain Sockets.NrrrrrcsSrrrrrrrpr z&open_unix_connection..) r r!r"r#r$rrZcreate_unix_connectionr)pathrrr(r)r*r+r,rrrrds    rcsLdurtntjdtddfdd}j||fi|IdHS)z=Similar to `start_server` but works with UNIX Domain Sockets.Nrrrcstd}t|d}|Sr-r.r/r0rrr2~s  z"start_unix_server..factory)r r!r"r#r$Zcreate_unix_server)r1r4rrr(r2rr0rr ts r c@sBeZdZdZdddZddZddZd d Zd d Zd dZ dS)FlowControlMixina)Reusable flow control logic for StreamWriter.drain(). This implements the protocol methods pause_writing(), resume_writing() and connection_lost(). If the subclass overrides these it must call the super methods. StreamWriter.drain() must wait for _drain_helper() coroutine. 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The intended use is to write w.write(data) await w.drain() Nr)ryrrr_rrrwrN)r;rIrrrdrainls   zStreamWriter.drain)N)rSrTrUrVr<rrur*rrrrrrrrirrrrrr6s    rc@seZdZdZedfddZddZddZdd Zd d Z d d Z ddZ ddZ ddZ ddZddZddZd&ddZd'ddZd d!Zd"d#Zd$d%ZdS)(rNcCsv|dkrtd||_|dur*t|_n||_t|_d|_d|_d|_ d|_ d|_ |j rrt td|_dS)NrzLimit cannot be <= 0Fr ) ValueError_limitr r!r7 bytearray_buffer_eof_waiter _exceptionr_r8r=r extract_stacksys _getframer[)r;rrrrrr<s   zStreamReader.__init__cCsdg}|jr"|t|jd|jr2|d|jtkrN|d|j|jrf|d|j|jr~|d|j|jr|d|j|j r|dd d |S) Nrz byteseofzlimit=zwaiter=z exception=rzZpausedr{r|) rr}lenrr_DEFAULT_LIMITrrr_r8r~rrrrrrs    zStreamReader.__repr__cCs|jSr)rr?rrrrrszStreamReader.exceptioncCs0||_|j}|dur,d|_|s,||dSr)rrrLrGrHrrrrGs zStreamReader.set_exceptioncCs*|j}|dur&d|_|s&|ddS)z1Wakeup read*() functions waiting for data or EOF.N)rrLrBrCrrr_wakeup_waiters zStreamReader._wakeup_waitercCs|jdusJd||_dS)NzTransport already setr)r;r*rrrrhszStreamReader.set_transportcCs*|jr&t|j|jkr&d|_|jdSr6)r8rrrr_resume_readingr?rrr_maybe_resume_transportsz$StreamReader._maybe_resume_transportcCsd|_|dSrF)rrr?rrrrmszStreamReader.feed_eofcCs|jo |j S)z=Return True if the buffer is empty and 'feed_eof' was called.)rrr?rrrat_eofszStreamReader.at_eofcCs|jrJd|sdS|j|||jdur||js|t|jd|jkr|z|jWnt ytd|_Yn0d|_dS)Nzfeed_data after feed_eofrT) rrextendrr_r8rrZ pause_readingrOrrrrrns    zStreamReader.feed_datacsl|jdurt|d|jr&Jd|jrs>         ! 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