Mercurial > hg > openjdk > jdk7u > hotspot
view src/share/vm/classfile/altHashing.hpp @ 5888:b878345a2866
8244955: Additional Fix for JDK-8240124
Reviewed-by: bae, yan
author | vkempik |
---|---|
date | Wed, 23 Sep 2020 17:34:10 +0300 |
parents | 3a09ec20ba0d |
children |
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/* * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_CLASSFILE_ALTHASHING_HPP #define SHARE_VM_CLASSFILE_ALTHASHING_HPP #include "prims/jni.h" #include "memory/allocation.hpp" /** * Implementation of alternate more secure hashing. */ class AltHashing : AllStatic { // For the seed computation static uint64_t halfsiphash_64(const uint32_t* data, int len); static uint64_t halfsiphash_64(uint64_t seed, const uint32_t* data, int len); #ifndef PRODUCT // Hashing functions used for internal testing static void testHalfsiphash_32_ByteArray(); static void testHalfsiphash_32_CharArray(); static void testHalfsiphash_64_FromReference(); #endif // PRODUCT public: static uint64_t compute_seed(); // For Symbols static uint32_t halfsiphash_32(uint64_t seed, const uint8_t* data, int len); // For Strings static uint32_t halfsiphash_32(uint64_t seed, const uint16_t* data, int len); NOT_PRODUCT(static void test_alt_hash();) }; #endif // SHARE_VM_CLASSFILE_ALTHASHING_HPP