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
40
41
42
43
44
45
46
47
48
49
50
51
|
# Ensure that disabling IRQs creates mutual exclusion between threads
# (also tests nesting of disable_irq across threads)
import machine
import time
import _thread
if not hasattr(machine, "disable_irq"):
print("SKIP")
raise SystemExit
count = 0
thread_done = False
def inc_count():
global count
a = machine.disable_irq()
try:
count += 1
i = 0
while i < 20:
b = machine.disable_irq()
try:
count += 1
count -= 1
i += 1
finally:
machine.enable_irq(b)
finally:
machine.enable_irq(a)
def inc_count_multiple(times):
for _ in range(times):
inc_count()
def thread_entry(inc_times):
global thread_done
inc_count_multiple(inc_times)
thread_done = True
_thread.start_new_thread(thread_entry, (1000,))
inc_count_multiple(1000)
time.sleep(1)
print("count", count, thread_done)
if count == 2000:
print("PASS")
|
