FilesExpand file tree

 dm-mixer

/

thread_qstr1.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

39 lines (31 loc) · 895 Bytes

 dm-mixer

/

thread_qstr1.py

Copy path

Top

File metadata and controls

• Code
• Blame

39 lines (31 loc) · 895 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

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

39

# test concurrent interning of strings

#

# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd

try:

import utime as time

except ImportError:

import time

import _thread

# function to check the interned string

def check(s, val):

assert type(s) == str

assert int(s) == val

# main thread function

def th(base, n):

for i in range(n):

# this will intern the string and check it

exec("check('%u', %u)" % (base + i, base + i))

with lock:

global n_finished

n_finished += 1

lock = _thread.allocate_lock()

n_thread = 4

n_finished = 0

n_qstr_per_thread = 100 # make 1000 for a more stressful test (uses more heap)

# spawn threads

for i in range(n_thread):

_thread.start_new_thread(th, (i * n_qstr_per_thread, n_qstr_per_thread))

# wait for threads to finish

while n_finished < n_thread:

time.sleep(1)

print('pass')