circuitpython/tests/thread/thread_ident1.py
David Lechner ffb43b2dd3 py/modthread: Return thread id from start_new_thread().
In CPython, `_thread.start_new_thread()` returns an ID that is the same ID
that is returned by `_thread.get_ident()`.  The current MicroPython
implementation of `_thread.start_new_thread()` always returns `None`.

This modifies the required functions to return a value. The native thread
id is returned since this can be used for interop with other functions, for
example, `pthread_kill()` on *nix. `_thread.get_ident()` is also modified
to return the native thread id so that the values match and avoids the need
for a separate `native_id` attribute.

Fixes issue #12153.

Signed-off-by: David Lechner <david@pybricks.com>
2023-09-03 18:49:18 +10:00

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Python

# test _thread.get_ident() function
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
import _thread
tid = None
def thread_entry():
global tid
tid = _thread.get_ident()
print("thread", type(tid) == int, tid != 0, tid != tid_main)
global finished
finished = True
tid_main = _thread.get_ident()
print("main", type(tid_main) == int, tid_main != 0)
finished = False
new_tid = _thread.start_new_thread(thread_entry, ())
while not finished:
pass
print("done", type(new_tid) == int, new_tid == tid)