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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=8 sts=4 et sw=4 tw=99:
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/IntegerRange.h"
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#include "js/Vector.h"
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#include "jsapi-tests/tests.h"
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#include "threading/Thread.h"
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#include "vm/SharedImmutableStringsCache.h"
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const int NUM_THREADS = 256;
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const int NUM_ITERATIONS = 256;
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const int NUM_STRINGS = 4;
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const char16_t *const STRINGS[NUM_STRINGS] = {
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u"uno",
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u"dos",
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u"tres",
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u"quattro"
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};
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struct CacheAndIndex
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{
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js::SharedImmutableStringsCache* cache;
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int index;
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CacheAndIndex(js::SharedImmutableStringsCache* cache, int index)
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: cache(cache)
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, index(index)
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{ }
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};
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static void
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getString(CacheAndIndex* cacheAndIndex)
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{
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for (int i = 0; i < NUM_ITERATIONS; i++) {
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auto str = STRINGS[cacheAndIndex->index % NUM_STRINGS];
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auto dupe = js::DuplicateString(str);
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MOZ_RELEASE_ASSERT(dupe);
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auto deduped = cacheAndIndex->cache->getOrCreate(mozilla::Move(dupe), js_strlen(str));
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MOZ_RELEASE_ASSERT(deduped.isSome());
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MOZ_RELEASE_ASSERT(js_strcmp(str, deduped->chars()) == 0);
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{
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auto cloned = deduped->clone();
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// We should be de-duplicating and giving back the same string.
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MOZ_RELEASE_ASSERT(deduped->chars() == cloned.chars());
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}
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}
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js_delete(cacheAndIndex);
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}
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BEGIN_TEST(testSharedImmutableStringsCache)
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{
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auto maybeCache = js::SharedImmutableStringsCache::Create();
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CHECK(maybeCache.isSome());
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auto& cache = *maybeCache;
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js::Vector<js::Thread> threads(cx);
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CHECK(threads.reserve(NUM_THREADS));
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for (auto i : mozilla::MakeRange(NUM_THREADS)) {
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auto cacheAndIndex = js_new<CacheAndIndex>(&cache, i);
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CHECK(cacheAndIndex);
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threads.infallibleEmplaceBack();
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CHECK(threads.back().init(getString, cacheAndIndex));
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}
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for (auto& thread : threads)
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thread.join();
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return true;
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}
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END_TEST(testSharedImmutableStringsCache)
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