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from .MPSharedList import MPSharedList
import multiprocessing
import threading
import time
import numpy as np
class IndexHost():
"""
Provides random shuffled indexes for multiprocesses
"""
def __init__(self, indexes_count, rnd_seed=None):
self.sq = multiprocessing.Queue()
self.cqs = []
self.clis = []
self.thread = threading.Thread(target=self.host_thread, args=(indexes_count,rnd_seed) )
self.thread.daemon = True
self.thread.start()
def host_thread(self, indexes_count, rnd_seed):
rnd_state = np.random.RandomState(rnd_seed) if rnd_seed is not None else np.random
idxs = [*range(indexes_count)]
shuffle_idxs = []
sq = self.sq
while True:
while not sq.empty():
obj = sq.get()
cq_id, count = obj[0], obj[1]
result = []
for i in range(count):
if len(shuffle_idxs) == 0:
shuffle_idxs = idxs.copy()
rnd_state.shuffle(shuffle_idxs)
result.append(shuffle_idxs.pop())
self.cqs[cq_id].put (result)
time.sleep(0.001)
def create_cli(self):
cq = multiprocessing.Queue()
self.cqs.append ( cq )
cq_id = len(self.cqs)-1
return IndexHost.Cli(self.sq, cq, cq_id)
# disable pickling
def __getstate__(self):
return dict()
def __setstate__(self, d):
self.__dict__.update(d)
class Cli():
def __init__(self, sq, cq, cq_id):
self.sq = sq
self.cq = cq
self.cq_id = cq_id
def multi_get(self, count):
self.sq.put ( (self.cq_id,count) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
class Index2DHost():
"""
Provides random shuffled indexes for multiprocesses
"""
def __init__(self, indexes2D):
self.sq = multiprocessing.Queue()
self.cqs = []
self.clis = []
self.thread = threading.Thread(target=self.host_thread, args=(indexes2D,) )
self.thread.daemon = True
self.thread.start()
def host_thread(self, indexes2D):
indexes2D_len = len(indexes2D)
idxs = [*range(indexes2D_len)]
idxs_2D = [None]*indexes2D_len
shuffle_idxs = []
shuffle_idxs_2D = [None]*indexes2D_len
for i in range(indexes2D_len):
idxs_2D[i] = [*range(len(indexes2D[i]))]
shuffle_idxs_2D[i] = []
#print(idxs)
#print(idxs_2D)
sq = self.sq
while True:
while not sq.empty():
obj = sq.get()
cq_id, count = obj[0], obj[1]
result = []
for i in range(count):
if len(shuffle_idxs) == 0:
shuffle_idxs = idxs.copy()
np.random.shuffle(shuffle_idxs)
idx_1D = shuffle_idxs.pop()
#print(f'idx_1D = {idx_1D}, len(shuffle_idxs_2D[idx_1D])= {len(shuffle_idxs_2D[idx_1D])}')
if len(shuffle_idxs_2D[idx_1D]) == 0:
shuffle_idxs_2D[idx_1D] = idxs_2D[idx_1D].copy()
#print(f'new shuffle_idxs_2d for {idx_1D} = { shuffle_idxs_2D[idx_1D] }')
#print(f'len(shuffle_idxs_2D[idx_1D])= {len(shuffle_idxs_2D[idx_1D])}')
np.random.shuffle( shuffle_idxs_2D[idx_1D] )
idx_2D = shuffle_idxs_2D[idx_1D].pop()
#print(f'len(shuffle_idxs_2D[idx_1D])= {len(shuffle_idxs_2D[idx_1D])}')
#print(f'idx_2D = {idx_2D}')
result.append( indexes2D[idx_1D][idx_2D])
self.cqs[cq_id].put (result)
time.sleep(0.001)
def create_cli(self):
cq = multiprocessing.Queue()
self.cqs.append ( cq )
cq_id = len(self.cqs)-1
return Index2DHost.Cli(self.sq, cq, cq_id)
# disable pickling
def __getstate__(self):
return dict()
def __setstate__(self, d):
self.__dict__.update(d)
class Cli():
def __init__(self, sq, cq, cq_id):
self.sq = sq
self.cq = cq
self.cq_id = cq_id
def multi_get(self, count):
self.sq.put ( (self.cq_id,count) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
class ListHost():
def __init__(self, list_):
self.sq = multiprocessing.Queue()
self.cqs = []
self.clis = []
self.m_list = list_
self.thread = threading.Thread(target=self.host_thread)
self.thread.daemon = True
self.thread.start()
def host_thread(self):
sq = self.sq
while True:
while not sq.empty():
obj = sq.get()
cq_id, cmd = obj[0], obj[1]
if cmd == 0:
self.cqs[cq_id].put ( len(self.m_list) )
elif cmd == 1:
idx = obj[2]
item = self.m_list[idx ]
self.cqs[cq_id].put ( item )
elif cmd == 2:
result = []
for item in obj[2]:
result.append ( self.m_list[item] )
self.cqs[cq_id].put ( result )
elif cmd == 3:
self.m_list.insert(obj[2], obj[3])
elif cmd == 4:
self.m_list.append(obj[2])
elif cmd == 5:
self.m_list.extend(obj[2])
time.sleep(0.005)
def create_cli(self):
cq = multiprocessing.Queue()
self.cqs.append ( cq )
cq_id = len(self.cqs)-1
return ListHost.Cli(self.sq, cq, cq_id)
def get_list(self):
return self.list_
# disable pickling
def __getstate__(self):
return dict()
def __setstate__(self, d):
self.__dict__.update(d)
class Cli():
def __init__(self, sq, cq, cq_id):
self.sq = sq
self.cq = cq
self.cq_id = cq_id
def __len__(self):
self.sq.put ( (self.cq_id,0) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
def __getitem__(self, key):
self.sq.put ( (self.cq_id,1,key) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
def multi_get(self, keys):
self.sq.put ( (self.cq_id,2,keys) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
def insert(self, index, item):
self.sq.put ( (self.cq_id,3,index,item) )
def append(self, item):
self.sq.put ( (self.cq_id,4,item) )
def extend(self, items):
self.sq.put ( (self.cq_id,5,items) )
class DictHost():
def __init__(self, d, num_users):
self.sqs = [ multiprocessing.Queue() for _ in range(num_users) ]
self.cqs = [ multiprocessing.Queue() for _ in range(num_users) ]
self.thread = threading.Thread(target=self.host_thread, args=(d,) )
self.thread.daemon = True
self.thread.start()
self.clis = [ DictHostCli(sq,cq) for sq, cq in zip(self.sqs, self.cqs) ]
def host_thread(self, d):
while True:
for sq, cq in zip(self.sqs, self.cqs):
if not sq.empty():
obj = sq.get()
cmd = obj[0]
if cmd == 0:
cq.put (d[ obj[1] ])
elif cmd == 1:
cq.put ( list(d.keys()) )
time.sleep(0.005)
def get_cli(self, n_user):
return self.clis[n_user]
# disable pickling
def __getstate__(self):
return dict()
def __setstate__(self, d):
self.__dict__.update(d)
class DictHostCli():
def __init__(self, sq, cq):
self.sq = sq
self.cq = cq
def __getitem__(self, key):
self.sq.put ( (0,key) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
def keys(self):
self.sq.put ( (1,) )
while True:
if not self.cq.empty():
return self.cq.get()
time.sleep(0.001)
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