1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/vm/Runtime-inl.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,84 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef vm_Runtime_inl_h
1.11 +#define vm_Runtime_inl_h
1.12 +
1.13 +#include "vm/Runtime.h"
1.14 +
1.15 +#include "jscompartment.h"
1.16 +
1.17 +#include "vm/Probes.h"
1.18 +
1.19 +#include "jsgcinlines.h"
1.20 +
1.21 +namespace js {
1.22 +
1.23 +inline bool
1.24 +NewObjectCache::lookupProto(const Class *clasp, JSObject *proto, gc::AllocKind kind, EntryIndex *pentry)
1.25 +{
1.26 + JS_ASSERT(!proto->is<GlobalObject>());
1.27 + return lookup(clasp, proto, kind, pentry);
1.28 +}
1.29 +
1.30 +inline bool
1.31 +NewObjectCache::lookupGlobal(const Class *clasp, js::GlobalObject *global, gc::AllocKind kind, EntryIndex *pentry)
1.32 +{
1.33 + return lookup(clasp, global, kind, pentry);
1.34 +}
1.35 +
1.36 +inline void
1.37 +NewObjectCache::fillGlobal(EntryIndex entry, const Class *clasp, js::GlobalObject *global, gc::AllocKind kind, JSObject *obj)
1.38 +{
1.39 + //JS_ASSERT(global == obj->getGlobal());
1.40 + return fill(entry, clasp, global, kind, obj);
1.41 +}
1.42 +
1.43 +template <AllowGC allowGC>
1.44 +inline JSObject *
1.45 +NewObjectCache::newObjectFromHit(JSContext *cx, EntryIndex entry_, js::gc::InitialHeap heap)
1.46 +{
1.47 + // The new object cache does not account for metadata attached via callbacks.
1.48 + JS_ASSERT(!cx->compartment()->hasObjectMetadataCallback());
1.49 +
1.50 + JS_ASSERT(unsigned(entry_) < mozilla::ArrayLength(entries));
1.51 + Entry *entry = &entries[entry_];
1.52 +
1.53 + JSObject *templateObj = reinterpret_cast<JSObject *>(&entry->templateObject);
1.54 +
1.55 + // Do an end run around JSObject::type() to avoid doing AutoUnprotectCell
1.56 + // on the templateObj, which is not a GC thing and can't use runtimeFromAnyThread.
1.57 + types::TypeObject *type = templateObj->type_;
1.58 +
1.59 + if (type->shouldPreTenure())
1.60 + heap = gc::TenuredHeap;
1.61 +
1.62 + if (cx->runtime()->upcomingZealousGC())
1.63 + return nullptr;
1.64 +
1.65 + // Trigger an identical allocation to the one that notified us of OOM
1.66 + // so that we trigger the right kind of GC automatically.
1.67 + if (allowGC) {
1.68 + mozilla::DebugOnly<JSObject *> obj =
1.69 + js::gc::AllocateObjectForCacheHit<allowGC>(cx, entry->kind, heap);
1.70 + JS_ASSERT(!obj);
1.71 + return nullptr;
1.72 + }
1.73 +
1.74 + JS_ASSERT(allowGC == NoGC);
1.75 + JSObject *obj = js::gc::AllocateObjectForCacheHit<NoGC>(cx, entry->kind, heap);
1.76 + if (obj) {
1.77 + copyCachedToObject(obj, templateObj, entry->kind);
1.78 + probes::CreateObject(cx, obj);
1.79 + return obj;
1.80 + }
1.81 +
1.82 + return nullptr;
1.83 +}
1.84 +
1.85 +} /* namespace js */
1.86 +
1.87 +#endif /* vm_Runtime_inl_h */
