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c02a7e1a7b
This upgrade also introduces exact stack rooting (see to the wiki: JSRootingGuide) and fixes problems with moving GC. This allows us to enable generational garbage collection (GGC). Measurements a few months ago have shown a performance improvement of a non-visual replay of around 13.5%. This probably varies quite a bit, but it should be somewhere between 5-20%. Memory usage has also been improved. Check the forum thread for details. Thanks to everyone from the team who helped with this directly or indirectly (review, finding and fixing issues, the required C++11 upgrade, the new autobuilder etc.)! Also thanks to the SpiderMonkey developers who helped on the #jsapi channel or elsewhere! Fixes #2462, #2415, #2428, #2684, #1374 Refs #2973, #2669 This was SVN commit r16214.
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/* Copyright (C) 2014 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lib/self_test.h"
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#include "scriptinterface/ScriptInterface.h"
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#include "scriptinterface/ScriptRuntime.h"
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#include "scriptinterface/third_party/ObjectToIDMap.h"
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class TestObjectToIDMap : public CxxTest::TestSuite
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{
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public:
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void test_movinggc()
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{
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ScriptInterface script("Test", "Test", g_ScriptRuntime);
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JSContext* cx = script.GetContext();
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JSAutoRequest rq(cx);
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JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
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ObjectIdCache<u32> map(g_ScriptRuntime);
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map.init();
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TS_ASSERT(map.add(cx, obj, 1));
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JSObject* plainObj = obj;
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// The map should contain the object we've just added
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TS_ASSERT(map.has(plainObj));
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JS_GC(g_ScriptRuntime->m_rt);
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// After a GC, the object should have been moved and plainObj should
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// not be valid anymore and not be found in the map anymore.
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// Obj should have an updated reference too, so it should still be found
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// in the map.
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//
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// NOTE: It's observed behaviour that a full GC always moves an object.
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// This might change in future SpiderMonkey versions. We only rely on
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// that behaviour for this test.
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//
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// TODO: It might be a good idea to test the behaviour when only a minor
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// GC runs, but there's no API for calling a minor GC yet.
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JS_ASSERT(plainObj != obj);
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TS_ASSERT(!map.has(plainObj));
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TS_ASSERT(map.has(obj));
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// Finding the ID associated with the object
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u32 ret(0);
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TS_ASSERT(map.find(obj, ret));
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TS_ASSERT_EQUALS(ret, 1);
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}
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};
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