Ñò Š„[Jc@sˆdZddklZddklZddklZdddgZdefd„ƒYZ defd „ƒYZ dd d „ƒYZ d S( s«An adaptation of Py2.3/2.4's Queue module which supports reentrant behavior, using RLock instead of Lock for its mutex object. This is to support the connection pool's usage of weakref callbacks to return connections to the underlying Queue, which can apparently in extremely rare cases be invoked within the ``get()`` method of the Queue itself, producing a ``put()`` inside the ``get()`` and therefore a reentrant condition.iÿÿÿÿ(tdeque(ttime(t threadingtEmptytFulltQueuecBseZdZRS(s4Exception raised by Queue.get(block=0)/get_nowait().(t__name__t __module__t__doc__(((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyRscBseZdZRS(s4Exception raised by Queue.put(block=0)/put_nowait().(RRR(((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyRscBs•eZdd„Zd„Zd„Zd„Zedd„Zd„Z edd„Z d„Z d „Z d „Z d „Zd „Zd „Zd„ZRS(icCsJ|i|ƒtiƒ|_ti|iƒ|_ti|iƒ|_dS(sxInitialize a queue object with a given maximum size. If `maxsize` is <= 0, the queue size is infinite. N(t_initRtRLocktmutext Conditiont not_emptytnot_full(tselftmaxsize((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyt__init__s cCs*|iiƒ|iƒ}|iiƒ|S(s9Return the approximate size of the queue (not reliable!).(R tacquiret_qsizetrelease(Rtn((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pytqsize.s   cCs*|iiƒ|iƒ}|iiƒ|S(sCReturn True if the queue is empty, False otherwise (not reliable!).(R Rt_emptyR(RR((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pytempty6s   cCs*|iiƒ|iƒ}|iiƒ|S(sBReturn True if the queue is full, False otherwise (not reliable!).(R Rt_fullR(RR((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pytfull>s   cCs|iiƒzæ|p|iƒo t‚qØn§|djo&x–|iƒo|iiƒqBWnt|djotdƒ‚ntƒ|}xF|iƒo8|tƒ}|djo t‚n|ii|ƒq’W|i|ƒ|i i ƒWd|ii ƒXdS(sPut an item into the queue. If optional args `block` is True and `timeout` is None (the default), block if necessary until a free slot is available. If `timeout` is a positive number, it blocks at most `timeout` seconds and raises the ``Full`` exception if no free slot was available within that time. Otherwise (`block` is false), put an item on the queue if a free slot is immediately available, else raise the ``Full`` exception (`timeout` is ignored in that case). is#'timeout' must be a positive numbergN( RRRRtNonetwaitt ValueErrort_timet_putR tnotifyR(Rtitemtblockttimeouttendtimet remaining((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pytputFs*           cCs|i|tƒS(s­Put an item into the queue without blocking. Only enqueue the item if a free slot is immediately available. Otherwise raise the ``Full`` exception. (R&tFalse(RR!((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyt put_nowaitiscCs |iiƒzé|p|iƒo t‚qØn§|djo&x–|iƒo|iiƒqBWnt|djotdƒ‚ntƒ|}xF|iƒo8|tƒ}|djo t‚n|ii|ƒq’W|iƒ}|i i ƒ|SWd|ii ƒXdS(s Remove and return an item from the queue. If optional args `block` is True and `timeout` is None (the default), block if necessary until an item is available. If `timeout` is a positive number, it blocks at most `timeout` seconds and raises the ``Empty`` exception if no item was available within that time. Otherwise (`block` is false), return an item if one is immediately available, else raise the ``Empty`` exception (`timeout` is ignored in that case). is#'timeout' must be a positive numbergN( R RRRRRRRt_getRR R(RR"R#R$R%R!((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pytgetqs,            cCs |itƒS(s¯Remove and return an item from the queue without blocking. Only get an item if one is immediately available. Otherwise raise the ``Empty`` exception. (R*R'(R((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyt get_nowait”scCs||_tƒ|_dS(N(RRtqueue(RR((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyR ¢s cCs t|iƒS(N(tlenR,(R((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyR¦scCs|i S(N(R,(R((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyRªscCs&|idjot|iƒ|ijS(Ni(RR-R,(R((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyR®scCs|ii|ƒdS(N(R,tappend(RR!((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyR²scCs |iiƒS(N(R,tpopleft(R((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyR)¶sN(RRRRRRtTrueRR&R(R*R+R RRRRR)(((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyRs    # #      N(( Rt collectionsRRRtsqlalchemy.utilRt__all__t ExceptionRRR(((s4/usr/lib/python2.6/site-packages/sqlalchemy/queue.pyts