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82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
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// Copyright (c) 2007, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// ---
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// Author: Geoff Pike
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#include <stdio.h>
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#include "base/logging.h"
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#include "packed-cache-inl.h"
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static const int kHashbits = PackedCache<20>::kHashbits;
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template <int kKeybits>
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static size_t MustGet(const PackedCache<kKeybits>& cache, uintptr_t key) {
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uint32 rv;
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CHECK(cache.TryGet(key, &rv));
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return rv;
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}
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template <int kKeybits>
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static size_t Has(const PackedCache<kKeybits>& cache, uintptr_t key) {
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uint32 dummy;
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return cache.TryGet(key, &dummy);
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}
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// A basic sanity test.
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void PackedCacheTest_basic() {
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PackedCache<20> cache;
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CHECK(!Has(cache, 0));
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cache.Put(0, 17);
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CHECK(Has(cache, 0));
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CHECK_EQ(MustGet(cache, 0), 17);
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cache.Put(19, 99);
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CHECK_EQ(MustGet(cache, 0), 17);
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CHECK_EQ(MustGet(cache, 19), 99);
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// Knock <0, 17> out by using a conflicting key.
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cache.Put(1 << kHashbits, 22);
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CHECK(!Has(cache, 0));
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CHECK_EQ(MustGet(cache, 1 << kHashbits), 22);
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cache.Invalidate(19);
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CHECK(!Has(cache, 19));
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CHECK(!Has(cache, 0));
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CHECK(Has(cache, 1 << kHashbits));
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}
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int main(int argc, char **argv) {
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PackedCacheTest_basic();
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printf("PASS\n");
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return 0;
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}
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