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# 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):
while True:
try:
_thread.start_new_thread(thread_entry, ())
break
except OSError:
pass
# 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")
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