diff options
| -rw-r--r-- | ports/esp32/mpthreadport.c | 5 | ||||
| -rw-r--r-- | tests/thread/thread_lock5.py | 16 |
2 files changed, 20 insertions, 1 deletions
diff --git a/ports/esp32/mpthreadport.c b/ports/esp32/mpthreadport.c index bbfc53d3f5..f575d99e6e 100644 --- a/ports/esp32/mpthreadport.c +++ b/ports/esp32/mpthreadport.c @@ -192,7 +192,10 @@ void vPortCleanUpTCB(void *tcb) { } void mp_thread_mutex_init(mp_thread_mutex_t *mutex) { - mutex->handle = xSemaphoreCreateMutexStatic(&mutex->buffer); + // Need a binary semaphore so a lock can be acquired on one Python thread + // and then released on another. + mutex->handle = xSemaphoreCreateBinaryStatic(&mutex->buffer); + xSemaphoreGive(mutex->handle); } int mp_thread_mutex_lock(mp_thread_mutex_t *mutex, int wait) { diff --git a/tests/thread/thread_lock5.py b/tests/thread/thread_lock5.py new file mode 100644 index 0000000000..830b5efa82 --- /dev/null +++ b/tests/thread/thread_lock5.py @@ -0,0 +1,16 @@ +# test _thread lock objects where a lock is acquired/released by a different thread + +import _thread + + +def thread_entry(): + print("thread about to release lock") + lock.release() + + +lock = _thread.allocate_lock() +lock.acquire() +_thread.start_new_thread(thread_entry, ()) +lock.acquire() +print("main has lock") +lock.release() |