1/* 2 * Copyright (C) 2009 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef ProtectionSpaceHash_h 27#define ProtectionSpaceHash_h 28 29#include "ProtectionSpace.h" 30#include <wtf/HashTraits.h> 31 32namespace WebCore { 33 34struct ProtectionSpaceHash { 35 static unsigned hash(const ProtectionSpace& protectionSpace) 36 { 37 unsigned hashCodes[5] = { 38 protectionSpace.host().impl() ? protectionSpace.host().impl()->hash() : 0, 39 protectionSpace.port(), 40 protectionSpace.serverType(), 41 protectionSpace.authenticationScheme(), 42 protectionSpace.realm().impl() ? protectionSpace.realm().impl()->hash() : 0 43 }; 44 45 unsigned codeCount = sizeof(hashCodes) / sizeof(UChar); 46 // Ignore realm for proxies. 47 if (protectionSpace.isProxy()) 48 codeCount -= sizeof(hashCodes[0]) / sizeof(UChar); 49 return StringImpl::computeHash(reinterpret_cast<UChar*>(hashCodes), codeCount); 50 } 51 52 static bool equal(const ProtectionSpace& a, const ProtectionSpace& b) { return a == b; } 53 static const bool safeToCompareToEmptyOrDeleted = false; 54}; 55 56} // namespace WebCore 57 58namespace WTF { 59 60 // WebCore::ProtectionSpaceHash is the default hash for ProtectionSpace 61 template<> struct HashTraits<WebCore::ProtectionSpace> : GenericHashTraits<WebCore::ProtectionSpace> { 62 static const bool emptyValueIsZero = true; 63 static void constructDeletedValue(WebCore::ProtectionSpace& slot) { new (&slot) WebCore::ProtectionSpace(HashTableDeletedValue); } 64 static bool isDeletedValue(const WebCore::ProtectionSpace& slot) { return slot.isHashTableDeletedValue(); } 65 }; 66 67 template<typename T> struct DefaultHash; 68 template<> struct DefaultHash<WebCore::ProtectionSpace> { 69 typedef WebCore::ProtectionSpaceHash Hash; 70 }; 71 72} // namespace WTF 73 74 75#endif // ProtectionSpaceHash_h 76