Author: Remi Meier
Branch: c7-weakref
Changeset: r984:2bb70b712097
Date: 2014-03-12 16:52 +0100
http://bitbucket.org/pypy/stmgc/changeset/2bb70b712097/
Log: fix cleanup on abort
diff --git a/c7/stm/core.c b/c7/stm/core.c
--- a/c7/stm/core.c
+++ b/c7/stm/core.c
@@ -484,6 +484,7 @@
/* reset these lists to NULL too on abort */
LIST_FREE(pseg->objects_pointing_to_nursery);
LIST_FREE(pseg->large_overflow_objects);
+ list_clear(pseg->young_weakrefs);
}
static void abort_with_mutex(void)
diff --git a/c7/test/test_weakref.py b/c7/test/test_weakref.py
--- a/c7/test/test_weakref.py
+++ b/c7/test/test_weakref.py
@@ -81,11 +81,49 @@
assert stm_get_weakref(lp1) == lp0
+ def test_abort_cleanup(self):
+ self.start_transaction()
+ self.push_root_no_gc()
+ lp1 = stm_allocate_weakref(ffi.NULL) # no collection here
+ self.pop_root()
+ self.abort_transaction()
+ self.start_transaction()
+class TestMajorCollection(BaseTest):
+ def test_simple(self):
+ self.start_transaction()
+
+ self.push_root_no_gc()
+ lp2 = stm_allocate(48)
+ lp1 = stm_allocate_weakref(lp2) # no collection here
+ self.pop_root()
+
+ assert stm_get_weakref(lp1) == lp2
+
+ self.push_root(lp1)
+ self.push_root(lp2)
+ stm_minor_collect()
+ lp2 = self.pop_root()
+ lp1 = self.pop_root()
+ # lp2 survived
+ assert stm_get_weakref(lp1) == lp2
+
+ self.push_root(lp1)
+ stm_minor_collect()
+ lp1 = self.pop_root()
+ # lp2 survived because no major collection
+ assert stm_get_weakref(lp1) == lp2
+
+ self.push_root(lp1)
+ stm_major_collect()
+ lp1 = self.pop_root()
+ # lp2 died
+ assert stm_get_weakref(lp1) == ffi.NULL
+
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