File size: 783 Bytes
079c32c |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 |
import pytest
import time
import numpy as np
import torch
from multiprocessing import Process
from ding.envs.env_manager.subprocess_env_manager import ShmBuffer
def writer(shm):
while True:
shm.fill(np.random.random(size=(4, 84, 84)).astype(np.float32))
time.sleep(1)
@pytest.mark.unittest
def test_shm():
shm = ShmBuffer(dtype=np.float32, shape=(4, 84, 84), copy_on_get=False)
writer_process = Process(target=writer, args=(shm, ))
writer_process.start()
time.sleep(0.1)
data1 = shm.get()
time.sleep(1)
data2 = shm.get()
# same memory
assert (data1 == data2).all()
time.sleep(1)
data3 = shm.get().copy()
time.sleep(1)
data4 = shm.get()
assert (data3 != data4).all()
writer_process.terminate()
|