Python select_for_update_lock Examples

Example #1

File: test_lock.py Project: bharathi26/django-viewflow

    def test_select_for_update_locks(self):
        thread1 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(attempts=1)])
        thread2 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(attempts=1)])

        thread1.start()
        thread2.start()

        try:
            self.exception_queue.get(True, 10)
        except queue.Empty:
            self.fail('No thread was blocked')
        finally:
            self.finished = True

        thread1.join()
        thread2.join()

Example #2

    def test_select_for_update_locks(self):
        thread1 = threading.Thread(target=self.run_with_lock, args=[lock.select_for_update_lock(Test.TestFlow, attempts=1)])
        thread2 = threading.Thread(target=self.run_with_lock, args=[lock.select_for_update_lock(Test.TestFlow, attempts=1)])

        thread1.start()
        thread2.start()

        try:
            self.exception_queue.get(True, 10)
        except queue.Empty:
            self.fail('No thread was blocked')
        finally:
            self.finished = True

        thread1.join()
        thread2.join()

Example #3

File: test_lock.py Project: sunrenjie/viewflow

    def test_select_for_update_locks_released(self):
        thread1 = threading.Thread(
            target=self.run_with_lock_and_release,
            args=[lock.select_for_update_lock(Test.TestFlow, attempts=4)])
        thread2 = threading.Thread(
            target=self.run_with_lock_and_release,
            args=[lock.select_for_update_lock(Test.TestFlow, attempts=4)])

        thread1.start()
        thread2.start()
        thread1.join()
        thread2.join()

        try:
            self.exception_queue.get(True, 1)
            self.fail('Thread was blocked')
        except queue.Empty:
            pass

Example #4

File: test_lock.py Project: liudch/viewflow

    def test_select_for_update_locks(self):
        lock = select_for_update_lock(NoTaskFlow, attempts=1)
        with lock(NoTaskFlow.end, self.process.pk):
            pass

        thread1 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(NoTaskFlow, attempts=1)])
        thread2 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(NoTaskFlow, attempts=1)])

        thread1.start()
        thread2.start()

        try:
            self.exception_queue.get(True, 10)
        except queue.Empty:
            self.fail('No thread was blocked')
        finally:
            self.finished = True

        thread1.join()
        thread2.join()

Example #5

    def test_select_for_update_locks(self):
        lock = select_for_update_lock(NoTaskFlow, attempts=1)
        with lock(NoTaskFlow, self.process.pk):
            pass

        thread1 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(NoTaskFlow, attempts=1)])
        thread2 = threading.Thread(target=self.run_with_lock, args=[select_for_update_lock(NoTaskFlow, attempts=1)])

        thread1.start()
        thread2.start()

        try:
            self.exception_queue.get(True, 10)
        except queue.Empty:
            self.fail('No thread was blocked')
        finally:
            self.finished = True

        thread1.join()
        thread2.join()