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