micropython/tests/thread/thread_stacksize1.py
yangfl 138a28dc07 tests/thread/thread_stacksize1.py: Increase stack size for CPython.
On arm64 with CPython:

  >>> _thread.stack_size(32*1024)
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  ValueError: size not valid: 32768 bytes

So increase the CPython value in the test to 512k so it runs on more
systems (on modern Linux the default stack size is usually 8MB).
2020-05-05 00:43:24 +10:00

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Python

# test setting the thread stack size
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
import sys
import _thread
# different implementations have different minimum sizes
if sys.implementation.name == "micropython":
sz = 2 * 1024
else:
sz = 512 * 1024
def foo():
pass
def thread_entry():
foo()
with lock:
global n_finished
n_finished += 1
# reset stack size to default
_thread.stack_size()
# test set/get of stack size
print(_thread.stack_size())
print(_thread.stack_size(sz))
print(_thread.stack_size() == sz)
print(_thread.stack_size())
lock = _thread.allocate_lock()
n_thread = 2
n_finished = 0
# set stack size and spawn a few threads
_thread.stack_size(sz)
for i in range(n_thread):
_thread.start_new_thread(thread_entry, ())
# reset stack size to default (for subsequent scripts on baremetal)
_thread.stack_size()
# busy wait for threads to finish
while n_finished < n_thread:
pass
print("done")