Commit Graph

36 Commits

Author SHA1 Message Date
Jeff Epler 87d3740c64 Merge tag 'v1.16' 2021-06-18 10:54:19 -05:00
Scott Shawcroft e02a26453c
Merge MicroPython 1.14 into CircuitPython 2021-05-11 15:07:40 -07:00
Damien George 4cdcbdb753 tests/thread: Make exc1,exit1,exit2,stacksize1,start1 tests run on rp2.
The RP2040 has 2 cores and supports running at most 2 Python threads (the
main one plus another), and will raise OSError if a thread cannot be
created because core1 is already in use.  This commit adjusts some thread
tests to be robust against such OSError's.  These tests now pass on rp2
boards.

Signed-off-by: Damien George <damien@micropython.org>
2021-05-10 13:07:16 +10:00
Damien George b6b39bff47 py/gc: Make gc_lock_depth have a count per thread.
This commit makes gc_lock_depth have one counter per thread, instead of one
global counter.  This makes threads properly independent with respect to
the GC, in particular threads can now independently lock the GC for
themselves without locking it for other threads.  It also means a given
thread can run a hard IRQ without temporarily locking the GC for all other
threads and potentially making them have MemoryError exceptions at random
locations (this really only occurs on MCUs with multiple cores and no GIL,
eg on the rp2 port).

The commit also removes protection of the GC lock/unlock functions, which
is no longer needed when the counter is per thread (and this also fixes the
cas where a hard IRQ calling gc_lock() may stall waiting for the mutex).

It also puts the check for `gc_lock_depth > 0` outside the GC mutex in
gc_alloc, gc_realloc and gc_free, to potentially prevent a hard IRQ from
waiting on a mutex if it does attempt to allocate heap memory (and putting
the check outside the GC mutex is now safe now that there is a
gc_lock_depth per thread).

Signed-off-by: Damien George <damien@micropython.org>
2021-05-10 13:07:16 +10:00
Damien George 7b923d6c72 tests/thread: Make stress_aes.py test run on bare-metal ports.
This is a long-running test, so make it run in reasonable time on slower,
bare-metal ports.

Signed-off-by: Damien George <damien@micropython.org>
2021-05-08 22:47:03 +10:00
Damien George 9340cfe774 tests/thread: Make stress_create.py test run on esp32.
The esp32 port needs to be idle for finished threads and their resources to
be freed up.

Signed-off-by: Damien George <damien@micropython.org>
2021-05-08 22:47:03 +10:00
Damien George 864e4ecc47 esp32/mpthreadport: Use binary semaphore instead of mutex.
So a lock can be acquired on one Python thread and then released on
another.  A test for this is added.

Signed-off-by: Damien George <damien@micropython.org>
2021-05-08 22:47:03 +10:00
Scott Shawcroft f0bb26d70f
Merge MicroPython 1.13 into CircuitPython 2021-05-04 18:06:33 -07:00
Scott Shawcroft b35fa44c8a
Merge MicroPython 1.12 into CircuitPython 2021-05-03 14:01:18 -07:00
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
Damien George 368c1a0961 tests/thread/stress_schedule.py: Assign globals before running test.
When threading is enabled without the GIL then there can be races between
the threads accessing the globals dict.  Avoid this issue by making sure
all globals variables are allocated before starting the threads.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-28 00:54:30 +11:00
stijn 40ad8f1666 all: Rename "sys" module to "usys".
This is consistent with the other 'micro' modules and allows implementing
additional features in Python via e.g. micropython-lib's sys.

Note this is a breaking change (not backwards compatible) for ports which
do not enable weak links, as "import sys" must now be replaced with
"import usys".
2020-09-04 00:10:24 +10:00
Diego Elio Pettenò 34b4993d63 Add license to some obvious files. 2020-07-06 19:16:25 +01:00
Diego Elio Pettenò dd5d7c86d2 Fix up end of file and trailing whitespace.
This can be enforced by pre-commit, but correct it separately to make it easier to review.
2020-06-03 10:56:35 +01:00
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
Jim Mussared 8470cd0be9 py/scheduler: Add assert that scheduler is locked when unlocking.
And add a test that shows how this can happen when multiple threads are
accessing the scheduler, which fails if atomic sections are not used.
2020-04-13 21:55:47 +10:00
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00
Damien George e374cfff80 py/modthread: Raise RuntimeError in release() if lock is not acquired. 2017-06-14 14:43:50 +10:00
Ville Skyttä ca16c38210 various: Spelling fixes 2017-05-29 11:36:05 +03:00
Damien George 06a12ada48 tests/thread: Add stress-test for creating many threads. 2017-02-15 11:12:37 +11:00
Damien George 2847d7431d tests/thread: Replace busy waiting loops with a loop that sleeps.
Depending on the thread scheduler, a busy-wait loop can hog the CPU and
make the tests very slow.  So convert such loops to loops that have an
explicit sleep, allowing the worker threads to do their job.
2017-02-15 11:12:37 +11:00
Damien George 28185bb81b tests/thread: Fix stack size test so tests run reliably on baremetal. 2017-02-01 17:21:35 +11:00
Damien George bebb3a6160 tests/thread: Make thread_exc2 runable on baremetal. 2017-01-31 13:59:20 +11:00
Rami Ali f397e1fdf0 tests/thread: Improve modthread.c test coverage. 2016-12-29 13:27:50 +11:00
Damien George 8b9ddf4031 tests/thread: Allow some tests to run on ports with not much heap. 2016-06-28 11:28:52 +01:00
Damien George 63d05228a3 tests/thread: Allow thread_sleep1 to run without floating point. 2016-06-28 11:28:52 +01:00
Damien George 15e68277c1 tests/thread: Make sure that thread tests don't rely on floating point. 2016-06-28 11:28:52 +01:00
Damien George 5b7789d519 tests/thread: Make stack-size test run correctly and reliable on uPy. 2016-06-28 11:28:52 +01:00
Damien George b7274e91bc tests/thread: Add test for concurrent mutating of user instance. 2016-06-28 11:28:50 +01:00
Damien George 2e4cdae4fd tests/thread: Add test for concurrent interning of strings.
Qstr code accesses global state and needs to be made thread safe.
2016-06-28 11:28:50 +01:00
Damien George 094a0dd11a tests/thread: Add tests that mutate shared objects.
Tests concurrent mutating access to: list, dict, set, bytearray.
2016-06-28 11:28:50 +01:00
Damien George c73cf9d931 tests/thread: Rename thread_stress_XXX.py to stress_XXX.py. 2016-06-28 11:28:50 +01:00
Damien George dcc7c5bd89 tests/thread: Add tests for running GC within a thread, and heap stress. 2016-06-28 11:28:49 +01:00
Damien George 3545ef8bb4 tests/thread: Remove need to sleep to wait for completion in some tests.
Use a lock and a counter instead, and busy wait for all threads to
complete.  This makes test run faster and they no longer rely on the time
module.
2016-06-28 11:09:31 +01:00
Damien George 2d5ea38b49 tests: Add 3 more tests for _thread module. 2016-06-28 11:09:31 +01:00
Damien George ed36632c6c tests: Add tests for _thread module.
Includes functionality and stress tests.
2016-06-28 11:09:31 +01:00