Author: Gregor Wegberg <[email protected]>
Branch: gc-incminimark-pinning
Changeset: r71829:8785c1ae62ff
Date: 2014-05-19 21:25 +0200
http://bitbucket.org/pypy/pypy/changeset/8785c1ae62ff/
Log: imported test from gc-minimark-pinning branch
test_pin_1 from that older branch not importated as yet unclear what
the exact use-case is or if it even adds something to the test set
diff --git a/rpython/memory/gc/test/test_object_pinning.py
b/rpython/memory/gc/test/test_object_pinning.py
--- a/rpython/memory/gc/test/test_object_pinning.py
+++ b/rpython/memory/gc/test/test_object_pinning.py
@@ -135,6 +135,27 @@
self.gc.collect()
assert ptr.someInt == 100
+ def test_pin_shadow_3(self):
+ s = self.malloc(S)
+ self.stackroots.append(s)
+ self.gc.id(s) # allocate shadow
+ self.gc.pin(llmemory.cast_ptr_to_adr(s))
+
+ print("free: %s" % self.gc.nursery_free)
+ print("top: %s" % self.gc.nursery_top)
+ self.gc.minor_collection()
+ # XXX it seems like we adjust nursery_free wrong after the minor
+ # collection or there is some other bug. (groggi)
+ print("free: %s" % self.gc.nursery_free)
+ print("top: %s" % self.gc.nursery_top)
+
+ self.gc.unpin(llmemory.cast_ptr_to_adr(s))
+ assert self.gc.nursery_free != self.gc.nursery
+ # we still have a pinned object
+ self.gc.minor_collection()
+ assert self.gc.nursery_free == self.gc.nursery
+ # we don't have a pinned object any more
+
# XXX test/define what happens if we try to pin an object that is too
# big for the nursery and will be raw-malloc'ed.
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