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python Programming Glossary: semaphoreHow to lock a critical section in Django? http://stackoverflow.com/questions/1123200/how-to-lock-a-critical-section-in-django lock a critical section in Django. I could use a lock or semaphore but the python implementation is for threads only so if the.. respected. Does anyone know of a way I am thinking posix semaphores right now to guarantee a lock across processes or barring that..
Clean way to get near-LIFO behavior from multiprocessing.Queue? (or even just *not* near-FIFO) http://stackoverflow.com/questions/12042575/clean-way-to-get-near-lifo-behavior-from-multiprocessing-queue-or-even-just-n is pretty simple. You acquire the read lock decrement the semaphore and grab an object from the read end of the Pipe. A put is more.. the condition before unlocking it. It also increments the semaphore and starts up the writer thread if it isn't running yet. The..
Queue remote calls to a Python Twisted perspective broker? http://stackoverflow.com/questions/2861858/queue-remote-calls-to-a-python-twisted-perspective-broker . This is the asynchronous version of the normal counting semaphore you might already know if you've done much threaded programming... know if you've done much threaded programming. A counting semaphore is a lot like a mutex a lock . But where a mutex can only be.. be acquired once until a corresponding release a counting semaphore can be configured to allow an arbitrary but specified number..
Repeated host lookups failing in urllib2 http://stackoverflow.com/questions/4555026/repeated-host-lookups-failing-in-urllib2 __init__ self outDir baseUrl item method numPages numRows semaphore threading.Thread.__init__ self self.outDir outDir self.baseUrl.. numPages self.numRows numRows self.item item self.semaphore semaphore def run self with self.semaphore # 'with' is awesome... self.numRows numRows self.item item self.semaphore semaphore def run self with self.semaphore # 'with' is awesome. with open..
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