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Определение специфических рекомендаций (матрица профилей §8):
1. Ж/д слой (закрыт мёртвый railway ×2.5 у РАС):
- /api/v1/water/{case_id} отдаёт railway=rail как LineString
(без service/industrial/military веток), кэш общий v2;
- railway_warning «перекрыть/проверить немедленно» по профилям;
- SearchMap: Polyline слой ж/д (тёмно-красный), счётчики 💧/🚂.
2. cant_swim → профиль не_умеет_плавать (water ×3.0, без изменения
радиуса, critical_warning «обследовать водоёмы НЕМЕДЛЕННО»):
- раньше чекбокс влиял только на текст, в скоринге был пробел;
- derive в analyze._derive_profiles — работает и для closed_cases.
3. unmodeled_profiles: ДЦП/слабое зрение/слух — честная пометка
«вне поведенческой модели» с пояснением (vector_tasks B12:
профили без аналога не выдавать за учтённые); блок на фронте
в карточке здоровья.
Площадь воды: сферический эксцесс, проверен на квадрате 53° (744017 м²
vs 743272 точного). Тесты: 202 passed (новый test_cant_swim_profile).
181 lines
6.9 KiB
Python
181 lines
6.9 KiB
Python
# Copyright Mateusz Kobos, (c) 2011
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# https://code.activestate.com/recipes/577803-reader-writer-lock-with-priority-for-writers/
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# released under the MIT licence
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try:
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import unittest2 as unittest
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except ImportError:
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import unittest
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import threading
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import time
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import copy
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from ._rwlock import RWLock
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class Writer(threading.Thread):
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def __init__(
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self, buffer_, rw_lock, init_sleep_time, sleep_time, to_write
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):
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"""
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@param buffer_: common buffer_ shared by the readers and writers
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@type buffer_: list
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@type rw_lock: L{RWLock}
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@param init_sleep_time: sleep time before doing any action
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@type init_sleep_time: C{float}
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@param sleep_time: sleep time while in critical section
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@type sleep_time: C{float}
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@param to_write: data that will be appended to the buffer
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"""
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threading.Thread.__init__(self)
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self.__buffer = buffer_
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self.__rw_lock = rw_lock
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self.__init_sleep_time = init_sleep_time
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self.__sleep_time = sleep_time
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self.__to_write = to_write
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self.entry_time = None
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"""Time of entry to the critical section"""
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self.exit_time = None
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"""Time of exit from the critical section"""
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def run(self):
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time.sleep(self.__init_sleep_time)
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self.__rw_lock.writer_acquire()
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self.entry_time = time.time()
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time.sleep(self.__sleep_time)
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self.__buffer.append(self.__to_write)
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self.exit_time = time.time()
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self.__rw_lock.writer_release()
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class Reader(threading.Thread):
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def __init__(self, buffer_, rw_lock, init_sleep_time, sleep_time):
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"""
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@param buffer_: common buffer shared by the readers and writers
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@type buffer_: list
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@type rw_lock: L{RWLock}
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@param init_sleep_time: sleep time before doing any action
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@type init_sleep_time: C{float}
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@param sleep_time: sleep time while in critical section
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@type sleep_time: C{float}
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"""
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threading.Thread.__init__(self)
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self.__buffer = buffer_
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self.__rw_lock = rw_lock
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self.__init_sleep_time = init_sleep_time
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self.__sleep_time = sleep_time
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self.buffer_read = None
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"""a copy of a the buffer read while in critical section"""
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self.entry_time = None
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"""Time of entry to the critical section"""
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self.exit_time = None
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"""Time of exit from the critical section"""
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def run(self):
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time.sleep(self.__init_sleep_time)
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self.__rw_lock.reader_acquire()
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self.entry_time = time.time()
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time.sleep(self.__sleep_time)
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self.buffer_read = copy.deepcopy(self.__buffer)
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self.exit_time = time.time()
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self.__rw_lock.reader_release()
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class RWLockTestCase(unittest.TestCase):
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def test_readers_nonexclusive_access(self):
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(buffer_, rw_lock, threads) = self.__init_variables()
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threads.append(Reader(buffer_, rw_lock, 0, 0))
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threads.append(Writer(buffer_, rw_lock, 0.2, 0.4, 1))
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threads.append(Reader(buffer_, rw_lock, 0.3, 0.3))
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threads.append(Reader(buffer_, rw_lock, 0.5, 0))
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self.__start_and_join_threads(threads)
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## The third reader should enter after the second one but it should
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## exit before the second one exits
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## (i.e. the readers should be in the critical section
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## at the same time)
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self.assertEqual([], threads[0].buffer_read)
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self.assertEqual([1], threads[2].buffer_read)
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self.assertEqual([1], threads[3].buffer_read)
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self.assertTrue(threads[1].exit_time <= threads[2].entry_time)
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self.assertTrue(threads[2].entry_time <= threads[3].entry_time)
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self.assertTrue(threads[3].exit_time < threads[2].exit_time)
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def test_writers_exclusive_access(self):
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(buffer_, rw_lock, threads) = self.__init_variables()
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threads.append(Writer(buffer_, rw_lock, 0, 0.4, 1))
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threads.append(Writer(buffer_, rw_lock, 0.1, 0, 2))
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threads.append(Reader(buffer_, rw_lock, 0.2, 0))
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self.__start_and_join_threads(threads)
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## The second writer should wait for the first one to exit
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self.assertEqual([1, 2], threads[2].buffer_read)
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self.assertTrue(threads[0].exit_time <= threads[1].entry_time)
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self.assertTrue(threads[1].exit_time <= threads[2].exit_time)
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def test_writer_priority(self):
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(buffer_, rw_lock, threads) = self.__init_variables()
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threads.append(Writer(buffer_, rw_lock, 0, 0, 1))
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threads.append(Reader(buffer_, rw_lock, 0.1, 0.4))
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threads.append(Writer(buffer_, rw_lock, 0.2, 0, 2))
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threads.append(Reader(buffer_, rw_lock, 0.3, 0))
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threads.append(Reader(buffer_, rw_lock, 0.3, 0))
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self.__start_and_join_threads(threads)
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## The second writer should go before the second and the third reader
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self.assertEqual([1], threads[1].buffer_read)
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self.assertEqual([1, 2], threads[3].buffer_read)
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self.assertEqual([1, 2], threads[4].buffer_read)
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self.assertTrue(threads[0].exit_time < threads[1].entry_time)
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self.assertTrue(threads[1].exit_time <= threads[2].entry_time)
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self.assertTrue(threads[2].exit_time <= threads[3].entry_time)
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self.assertTrue(threads[2].exit_time <= threads[4].entry_time)
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def test_many_writers_priority(self):
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(buffer_, rw_lock, threads) = self.__init_variables()
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threads.append(Writer(buffer_, rw_lock, 0, 0, 1))
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threads.append(Reader(buffer_, rw_lock, 0.1, 0.6))
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threads.append(Writer(buffer_, rw_lock, 0.2, 0.1, 2))
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threads.append(Reader(buffer_, rw_lock, 0.3, 0))
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threads.append(Reader(buffer_, rw_lock, 0.4, 0))
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threads.append(Writer(buffer_, rw_lock, 0.5, 0.1, 3))
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self.__start_and_join_threads(threads)
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## The two last writers should go first -- after the first reader and
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## before the second and the third reader
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self.assertEqual([1], threads[1].buffer_read)
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self.assertEqual([1, 2, 3], threads[3].buffer_read)
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self.assertEqual([1, 2, 3], threads[4].buffer_read)
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self.assertTrue(threads[0].exit_time < threads[1].entry_time)
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self.assertTrue(threads[1].exit_time <= threads[2].entry_time)
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self.assertTrue(threads[1].exit_time <= threads[5].entry_time)
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self.assertTrue(threads[2].exit_time <= threads[3].entry_time)
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self.assertTrue(threads[2].exit_time <= threads[4].entry_time)
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self.assertTrue(threads[5].exit_time <= threads[3].entry_time)
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self.assertTrue(threads[5].exit_time <= threads[4].entry_time)
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@staticmethod
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def __init_variables():
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buffer_ = []
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rw_lock = RWLock()
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threads = []
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return (buffer_, rw_lock, threads)
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@staticmethod
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def __start_and_join_threads(threads):
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for t in threads:
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t.start()
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for t in threads:
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t.join()
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