ó šßÈ[c@sùddlZddlZddlZddlmZddlmZdZdZdZ dZ d Z d Z d Z d Zd ZdZe e eeegZide 6de 6de6de6de6ZejdƒZejƒZejeƒdefd„ƒYZdefd„ƒYZdefd„ƒYZdefd„ƒYZdefd„ƒYZdefd„ƒYZd efd!„ƒYZ d"efd#„ƒYZ!d$„Z"dd%„Z$ed&d'ƒZ%de d(„Z&d)efd*„ƒYZ'd+efd,„ƒYZ(dS(-iÿÿÿÿN(t namedtuplei(tzips"Brian Quinlan (brian@sweetapp.com)tFIRST_COMPLETEDtFIRST_EXCEPTIONt ALL_COMPLETEDt _AS_COMPLETEDtPENDINGtRUNNINGt CANCELLEDtCANCELLED_AND_NOTIFIEDtFINISHEDtpendingtrunningt cancelledtfinishedsconcurrent.futurestErrorcBseZdZRS(s-Base class for all future-related exceptions.(t__name__t __module__t__doc__(((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR3stCancelledErrorcBseZdZRS(sThe Future was cancelled.(RRR(((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR8st TimeoutErrorcBseZdZRS(s*The operation exceeded the given deadline.(RRR(((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR=st_WaitercBs2eZdZd„Zd„Zd„Zd„ZRS(s;Provides the event that `wait` and `as_completed` block on.cCstjƒ|_g|_dS(N(t threadingtEventteventtfinished_futures(tself((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt__init__DscCs|jj|ƒdS(N(Rtappend(Rtfuture((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt add_resultHscCs|jj|ƒdS(N(RR(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt add_exceptionKscCs|jj|ƒdS(N(RR(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt add_cancelledNs(RRRRRRR (((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRBs    t_AsCompletedWaitercBs2eZdZd„Zd„Zd„Zd„ZRS(sUsed by `as_completed`.cCs&tt|ƒjƒtjƒ|_dS(N(tsuperR!RRtLocktlock(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRUscCs7|j(tt|ƒj|ƒ|jjƒWdQXdS(N(R$R"R!RRtset(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRYs cCs7|j(tt|ƒj|ƒ|jjƒWdQXdS(N(R$R"R!RRR%(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR^s cCs7|j(tt|ƒj|ƒ|jjƒWdQXdS(N(R$R"R!R RR%(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR cs (RRRRRRR (((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR!Rs    t_FirstCompletedWaitercBs)eZdZd„Zd„Zd„ZRS(s,Used by `wait(return_when=FIRST_COMPLETED)`.cCs'tt|ƒj|ƒ|jjƒdS(N(R"R&RRR%(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRlscCs'tt|ƒj|ƒ|jjƒdS(N(R"R&RRR%(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRpscCs'tt|ƒj|ƒ|jjƒdS(N(R"R&R RR%(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR ts(RRRRRR (((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR&is  t_AllCompletedWaitercBs;eZdZd„Zd„Zd„Zd„Zd„ZRS(s>Used by `wait(return_when=FIRST_EXCEPTION and ALL_COMPLETED)`.cCs)||_||_tt|ƒjƒdS(N(tnum_pending_callststop_on_exceptionR"R'R(RR(R)((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR|s  cCs,|jt|jƒkr(|jjƒndS(N(R(tlenRRR%(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt_decrement_pending_callsscCs$tt|ƒj|ƒ|jƒdS(N(R"R'RR+(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR…scCs=tt|ƒj|ƒ|jr/|jjƒn |jƒdS(N(R"R'RR)RR%R+(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR‰s cCs$tt|ƒj|ƒ|jƒdS(N(R"R'R R+(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR s(RRRRR+RRR (((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR'ys     t_AcquireFuturescBs)eZdZd„Zd„Zd„ZRS(sOA context manager that does an ordered acquire of `Future` conditions. cCst|dtƒ|_dS(Ntkey(tsortedtidtfutures(RR0((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRšscCs%x|jD]}|jjƒq WdS(N(R0t _conditiontacquire(RR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt __enter__scGs%x|jD]}|jjƒq WdS(N(R0R1trelease(RtargsR((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt__exit__¡s(RRRRR3R6(((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR,•s  cCsÂ|tkrtƒ}n…|tkr0tƒ}nmtd„|Dƒƒ}|tkrgt|dtƒ}n6|tkrˆt|dt ƒ}nt dj |ƒƒ‚x|D]}|j j |ƒq¤W|S(Ncss$|]}|jttgkVqdS(N(t_stateR R (t.0tf((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pys ­sR)sInvalid return condition: {!r}(RR!RR&tsumRR'tTrueRtFalset ValueErrortformatt_waitersR(tfst return_whentwaitert pending_countR9((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt_create_and_install_waiters¦s"             c csq|dk r|tjƒ}nt|ƒ:td„|Dƒƒ}t|ƒ|}t|tƒ}WdQXzáx|D] }|VqqWxÄ|rF|dkržd}nC|tjƒ}|dkrátdjt|ƒt|ƒƒƒ‚n|j j |ƒ|j $|j }g|_ |j j ƒWdQXx |D]}|V|j|ƒq'WqƒWWdx|D]}|jj|ƒqRWXdS(sDAn iterator over the given futures that yields each as it completes. 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Parameters ---------- fs The sequence of Futures (possibly created by different Executors) to wait upon. timeout The maximum number of seconds to wait. If None, then there is no limit on the wait time. return_when Indicates when this function should return. The options are: FIRST_COMPLETED - Return when any future finishes or is cancelled. FIRST_EXCEPTION - Return when any future finishes by raising an exception. If no future raises an exception then it is equivalent to ALL_COMPLETED. ALL_COMPLETED - Return when all futures finish or are cancelled. Returns ------- A named 2-tuple of sets. The first set, named 'done', contains the futures that completed (is finished or cancelled) before the wait completed. 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Should not be called by clients.N( Rt ConditionR1RR7REt_resultt _exceptionR?t_done_callbacks(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR>s     cCsJxC|jD]8}y||ƒWq tk rAtjd|ƒq Xq WdS(Ns!exception calling callback for %r(RXt ExceptiontLOGGERRO(Rtcallback((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt_invoke_callbacksGs  cCs°|j¡|jtkrƒ|jrQdjtt|ƒƒt|j|jjj ƒSdjtt|ƒƒt|j|j jj ƒSndjtt|ƒƒt|jƒSWdQXdS(Ns!s#s( R1R7R RWR>thexR/t_STATE_TO_DESCRIPTION_MAPt __class__RRV(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt__repr__Ns    cCsf|jM|jttgkr#tS|jttgkr<tSt|_|jjƒWdQX|j ƒtS(s»Cancel the future if possible. Returns True if the future was cancelled, False otherwise. A future cannot be cancelled if it is running or has already completed. N( R1R7RR R<RR R;t notify_allR\(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pytcancel^s   cCs'|j|jttgkSWdQXdS(s(Return True if the future has cancelled.N(R1R7RR (R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR qs cCs!|j|jtkSWdQXdS(s1Return True if the future is currently executing.N(R1R7R(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyR vs cCs*|j|jtttgkSWdQXdS(s>Return True of the future was cancelled or finished executing.N(R1R7RR R (R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRR{s cCs |jr|j‚n|jSdS(N(RWRV(R((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt __get_result€s  cCsJ|j1|jtttgkr6|jj|ƒdSWdQX||ƒdS(s0Attaches a callable that will be called when the future finishes. Parameters ---------- fn A callable that will be called with this future as its only argument when the future completes or is cancelled. 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N( R1R7RR RR t_Future__get_resultRGR(RRJ((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pytresultšs     cCs›|jŒ|jttgkr+tƒ‚n|jtkrA|jS|jj|ƒ|jttgkrrtƒ‚n|jtkrˆ|jStƒ‚WdQXdS(sŒReturn the exception raised by the call that the future represents. Parameters ---------- timeout The number of seconds to wait for the exception if the future isn't done. If None, then there is no limit on the wait time. Returns ------- The exception raised by the call that the future represents or None if the call completed without raising. Raises ------ CancelledError If the future was cancelled. TimeoutError If the future didn't finish executing before the given timeout. N( R1R7RR RR RWRGR(RRJ((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyROÂs   cCs›|jŒ|jtkrGt|_x|jD]}|j|ƒq,WtS|jtkrct|_t St j dt |j ƒ|j jƒtdƒ‚WdQXdS(sØMark the future as running or process any cancel notifications. Should only be used by `Executor` implementations and unit tests. 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N(R1RWR R7R?RRaR\(RRORB((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyt set_exception#s   N(RRRRR\R`RbR R RRRfReRERgRORjRkRl(((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pyRT;s         ( ) + tExecutorcBs>eZdZd„Zd„Zed„Zd„Zd„ZRS(sCThis is an abstract base class for concrete asynchronous executors.cOs tƒ‚dS(s/Submits a callable to be executed with the given arguments. Schedules the callable to be executed as `fn(*args, **kwargs)` and returns a `Future` instance representing the execution of the callable. Returns ------- A Future representing the given call. N(tNotImplementedError(RRdR5tkwargs((sAlib/python2.7/site-packages/astropy/utils/compat/futures/_base.pytsubmit4s c osÃ|jdƒ}|dk r.|tjƒ}ngt|ŒD]}|j||Œ^q;}zGx@|D]8}|dkrƒ|jƒVqc|j|tjƒƒVqcWWdx|D]}|jƒqªWXdS(sÇReturns a iterator equivalent to `map(fn, iter)`. 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