py/modthread: Raise RuntimeError in release() if lock is not acquired.
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@ -84,7 +84,9 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(thread_lock_acquire_obj, 1, 3, thread
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STATIC mp_obj_t thread_lock_release(mp_obj_t self_in) {
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mp_obj_thread_lock_t *self = MP_OBJ_TO_PTR(self_in);
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// TODO check if already unlocked
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if (!self->locked) {
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mp_raise_msg(&mp_type_RuntimeError, NULL);
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}
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self->locked = false;
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MP_THREAD_GIL_EXIT();
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mp_thread_mutex_unlock(&self->mutex);
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@ -38,3 +38,9 @@ try:
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except KeyError:
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print('KeyError')
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print(lock.locked())
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# test that we can't release an unlocked lock
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try:
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lock.release()
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except RuntimeError:
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print('RuntimeError')
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