def active_context(space):
w_active_process = wrapper.scheduler(space).active_process()
active_process = wrapper.ProcessWrapper(space, w_active_process)
w_active_context = active_process.suspended_context()
assert isinstance(w_active_context, W_PointersObject)
active_process.store_suspended_context(space.w_nil)
return w_active_context.as_context_get_shadow(space)
def test_step_run_something():
space, interp = runningSomethingImage(cached=False)
ap = wrapper.ProcessWrapper(space, wrapper.scheduler(space).active_process())
w_ctx = ap.suspended_context()
s_ctx = w_ctx.as_context_get_shadow(space)
ap.store_suspended_context(space.w_nil)
assert isinstance(s_ctx, storage_contexts.ContextPartShadow)
assert s_ctx.top().is_same_object(space.w_true)
interp.step(s_ctx)
interp.step(s_ctx)
assert s_ctx.top().value == 1
interp.step(s_ctx)
assert s_ctx.top().value == 2
interp.step(s_ctx)
assert s_ctx.top().value == 3
def new_process(w_next=None,
w_my_list=None,
w_suspended_context=None,
priority=0):
if w_next is None:
w_next = space.w_nil
if w_my_list is None:
w_my_list = space.w_nil
if w_suspended_context is None:
w_suspended_context = space.w_nil
w_priority = space.wrap_int(priority)
w_process = W_PointersObject(space, None, 4)
process = wrapper.ProcessWrapper(space, w_process)
process.store_next_link(w_next)
process.store_my_list(w_my_list)
process.store_suspended_context(w_suspended_context)
process.write(2, w_priority)
return process
def create_process(interp, s_frame):
space = interp.space
w_active_process = wrapper.scheduler(space).active_process()
assert isinstance(w_active_process, W_PointersObject)
w_benchmark_proc = W_PointersObject(space,
w_active_process.getclass(space),
w_active_process.size())
if interp.image.version.has_closures:
# Priorities below 10 are not allowed in newer versions of Squeak.
active_priority = space.unwrap_int(w_active_process.fetch(space, 2))
priority = active_priority / 2 + 1
priority = max(11, priority)
else:
priority = 7
w_benchmark_proc.store(space, 1, s_frame.w_self())
w_benchmark_proc.store(space, 2, space.wrap_int(priority))
# Make process eligible for scheduling
wrapper.ProcessWrapper(space, w_benchmark_proc).put_to_sleep()
def get_instances_array(interp,
s_frame,
w_class=None,
store=True,
some_instance=False):
# early return for classes that never had instances. This is true for a
# bunch of special classes.
if w_class:
if interp.space.w_SmallInteger.is_same_object(w_class):
return []
if interp.space.is_spur.is_set():
if interp.space.w_Character.is_same_object(w_class):
return []
if interp.image.version.is_64bit:
if interp.space.w_Float.is_same_object(w_class):
return []
if interp.image.version.is_modern:
if interp.space.w_BlockContext.is_same_object(w_class):
return []
# make sure we also get any objects in the currently active process
w_active_process = wrapper.scheduler(interp.space).active_process()
active_process = wrapper.ProcessWrapper(interp.space, w_active_process)
active_process.store_suspended_context(s_frame.w_self())
try:
match_w = s_frame.instances_array(w_class)
if match_w is None:
if some_instance and interp.space.is_spur.is_set():
# on Spur, someInstance really means just one, it's not used to
# start iterating over all instances
return get_instances_array_trace(interp,
w_class,
some_instance=True)
match_w = get_instances_array_trace(interp, w_class)
if store:
s_frame.store_instances_array(w_class, match_w)
return match_w
finally:
active_process.store_suspended_context(interp.space.w_nil)
def func(interp, s_frame, w_rcvr):
# we leave the rcvr on the stack, so it is there even if we resume another
# process when yielding
w_process = wrapper.SchedulerWrapper(interp.space, w_rcvr).active_process()
wrapper.ProcessWrapper(interp.space, w_process).yield_(s_frame)
def func(interp, s_frame, w_rcvr):
assert_class(interp, w_rcvr, interp.space.w_Process)
proc = wrapper.ProcessWrapper(interp.space, w_rcvr)
s_frame.pop() # remove receiver
s_frame.push(proc.my_list()) # leave my_list on stack as return value
proc.suspend(s_frame)
def func(interp, s_frame, w_rcvr):
assert_class(interp, w_rcvr, interp.space.w_Process)
wrapper.ProcessWrapper(interp.space, w_rcvr).resume(s_frame)
def test_step_forged_image():
ap = wrapper.ProcessWrapper(space, wrapper.scheduler(space).active_process())
s_ctx = ap.suspended_context().as_context_get_shadow(space)
assert isinstance(s_ctx, storage_contexts.ContextPartShadow)
assert s_ctx.top().is_same_object(space.w_true)