er XddlZddlmZGddejZGddeZy)N)QtCorecReZdZdZdZd dZddZdZddZdZ d Z d Z d Z d Z y)MutexaM Subclass of QMutex that provides useful debugging information during deadlocks--tracebacks are printed for both the code location that is attempting to lock the mutex as well as the location that has already acquired the lock. Also provides __enter__ and __exit__ methods for use in "with" statements. c |jddrtjjf}tjj|g|tj|_g|_|jdd|_y)N recursiveFdebug) getrQMutex Recursive__init__ltbpopr )selfargskargss 6/usr/lib/python3/dist-packages/pyqtgraph/util/mutex.pyr zMutex.__init__s_ 99[% (MM++-D t+d+YYw. Nc$| tjj|}n tjj||}|jr|r|jj  |@|j jdjtjddn'|j jdt|z|jj|S|S#|jjwxYw)Nz ) rr tryLockr rlockrappendjoin traceback format_stackstrunlock)rtimeoutidlockeds rrz Mutex.tryLocks ?]]**40F]]**49F ::& FFKKM :GGNN2779+A+A+CCR+H#IJGGNN4#b'>2  v  s ,A)C33Dcd}d} |j||ry|dz }|jr|jj t d||zdz zt j t|jdkDr$t dt |jdn t d|jj#|jjwxYw) Nriz6Waiting for mutex lock (%0.1f sec). Traceback follows:g@@z Mutex is currently locked from: rz$Mutex is currently locked from [???]) rr rrprintr print_stacklenrr )rr"cwaitTimes rrz Mutex.lock)s ||Hb) FAzz  $RxZ-/0))+477|a'ABdggbk*DEFFMMO! FFMMOs A/CC+ctjj||jru|jj  t |jdkDr|jjn td |jjyy#|jjwxYw)Nrz1Attempt to unlock mutex before it has been locked) rr r r rrr(rr Exceptionrs rr z Mutex.unlock?s T" :: FFKKM twwB""B>c"|jS)zVMimics threading.Lock.acquire() to allow this class as a drop-in replacement. )r)rblockings racquirez Mutex.acquireLs||~rc$|jy)zVMimics threading.Lock.release() to allow this class as a drop-in replacement. Nr r-s rreleasez Mutex.releaseQs  rc|jjt|j}|jj |SN)rrr(rr )rns rdepthz Mutex.depthVs.  L  rc|jj |jdd}|jj|S#|jjwxYwr5)rrrr )rrets rrzMutex.traceback\sD   ''!*C FFMMO  FFMMOs AA#c$|jyr5r2)rrs r__exit__zMutex.__exit__ds  rc&|j|Sr5)rr-s r __enter__zMutex.__enter__gs  r)NNr5)T)__name__ __module__ __qualname____doc__r rrr r0r3r7rr;r=rrrrs9/$$,     rrceZdZdZdZy)RecursiveMutexz"Mimics threading.RLock class. c :d|d<tj|fi|y)NTr)rr )rkwdss rr zRecursiveMutex.__init__os [ t$t$rN)r>r?r@rAr rBrrrDrDls %rrD)rQtrr rrDrBrrrHs*cFMMcL%U%r