Author: Nicolas Truessel <[email protected]>
Branch: quad-color-gc
Changeset: r86351:3d1e9993d643
Date: 2016-08-20 18:22 +0200
http://bitbucket.org/pypy/pypy/changeset/3d1e9993d643/
Log: Implement malloc_varsize_clear (WIP)
diff --git a/rpython/memory/gc/qcgc.py b/rpython/memory/gc/qcgc.py
--- a/rpython/memory/gc/qcgc.py
+++ b/rpython/memory/gc/qcgc.py
@@ -1,6 +1,7 @@
from rpython.memory.gc.base import GCBase
-from rpython.rtyper.lltypesystem import rffi, lltype, llgroup, llmemory
+from rpython.rtyper.lltypesystem import rffi, lltype, llgroup, llmemory,
llarena
from rpython.rtyper.lltypesystem.lloperation import llop
+from rpython.rlib.debug import ll_assert
class QCGC(GCBase):
_alloc_flavor_ = "raw"
@@ -27,24 +28,19 @@
needs_finalizer=False,
is_finalizer_light=False,
contains_weakptr=False):
- # What is the llmemory.GCREF for?
+ # XXX: What is the llmemory.GCREF for? (Assumption: return value)
+ ll_assert(not needs_finalizer, 'finalizer not supported')
+ ll_assert(not is_finalizer_light, 'light finalizer not supported')
+ ll_assert(not contains_weakptr, 'weakref not supported')
return llop.qcgc_allocate(llmemory.GCREF, size, typeid)
- ## XXX finalizers are ignored for now
- ##ll_assert(not needs_finalizer, 'XXX needs_finalizer')
- ##ll_assert(not is_finalizer_light, 'XXX is_finalizer_light')
- #ll_assert(not contains_weakptr, 'contains_weakptr: use
malloc_weakref')
- ## XXX call optimized versions, e.g. if size < GC_NURSERY_SECTION
- #return llop.stm_allocate(llmemory.GCREF, size, typeid16)
def malloc_varsize_clear(self, typeid16, length, size, itemsize,
offset_to_length):
- raise NotImplementedError
- ## XXX be careful about overflows, and call optimized versions
- #totalsize = size + itemsize * length
- #totalsize = llarena.round_up_for_allocation(totalsize)
- #obj = llop.stm_allocate(llmemory.Address, totalsize, typeid16)
- #(obj + offset_to_length).signed[0] = length
- #return llmemory.cast_adr_to_ptr(obj, llmemory.GCREF)
+ totalsize = size + itemsize * length
+ totalsize = llarena.round_up_for_allocation(totalsize)
+ obj = llop.qcgc_allocate(llmemory.Address, totalsize, typeid16)
+ (obj + offset_to_length).signed[0] = length
+ return llmemory.cast_adr_to_ptr(obj, llmemory.GCREF)
def collect(self, gen=1):
"""Do a minor (gen=0) or major (gen>0) collection."""
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