c6cdf38e75
This is required, so that QHash and QSet can hold more than 2^32 items on 64 bit platforms. The actual hashing functions for strings are still 32bit, this will be changed in a follow-up commit. Change-Id: I4372125252486075ff3a0b45ecfa818359fe103b Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the qmake application of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef CACHEKEYS_H
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#define CACHEKEYS_H
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#include "project.h"
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#include <qstring.h>
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#include <qstringlist.h>
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#include <qfile.h>
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#include <qfileinfo.h>
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#include <qhash.h>
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QT_BEGIN_NAMESPACE
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// -------------------------------------------------------------------------------------------------
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struct FixStringCacheKey
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{
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mutable uint hash;
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QString string, pwd;
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uchar flags;
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FixStringCacheKey(const QString &s, uchar f)
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{
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hash = 0;
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pwd = qmake_getpwd();
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string = s;
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flags = f;
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}
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bool operator==(const FixStringCacheKey &f) const
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{
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return (hashCode() == f.hashCode() &&
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f.flags == flags &&
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f.string == string &&
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f.pwd == pwd);
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}
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inline uint hashCode() const {
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if(!hash)
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hash = qHash(string) ^ qHash(flags) /*^ qHash(pwd)*/;
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return hash;
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}
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};
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inline size_t qHash(const FixStringCacheKey &f) { return f.hashCode(); }
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// -------------------------------------------------------------------------------------------------
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struct FileInfoCacheKey
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{
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mutable uint hash;
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QString file, pwd;
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FileInfoCacheKey(const QString &f)
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{
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hash = 0;
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if(isRelativePath(f))
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pwd = qmake_getpwd();
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file = f;
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}
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bool operator==(const FileInfoCacheKey &f) const
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{
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return (hashCode() == f.hashCode() && f.file == file &&
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f.pwd == pwd);
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}
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inline uint hashCode() const {
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if(!hash)
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hash = qHash(file) /*^ qHash(pwd)*/;
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return hash;
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}
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inline bool isRelativePath(const QString &file) {
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int length = file.length();
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if (!length)
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return true;
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const QChar c0 = file.at(0);
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const QChar c1 = length >= 2 ? file.at(1) : QChar(0);
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return !(c0 == QLatin1Char('/')
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|| c0 == QLatin1Char('\\')
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|| (c0.isLetter() && c1 == QLatin1Char(':'))
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|| (c0 == QLatin1Char('/') && c1 == QLatin1Char('/'))
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|| (c0 == QLatin1Char('\\') && c1 == QLatin1Char('\\')));
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}
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};
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inline size_t qHash(const FileInfoCacheKey &f) { return f.hashCode(); }
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// -------------------------------------------------------------------------------------------------
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template <typename T>
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inline void qmakeDeleteCacheClear(void *i) { delete reinterpret_cast<T*>(i); }
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inline void qmakeFreeCacheClear(void *i) { free(i); }
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typedef void (*qmakeCacheClearFunc)(void *);
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void qmakeAddCacheClear(qmakeCacheClearFunc func, void **);
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void qmakeClearCaches();
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QT_END_NAMESPACE
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#endif // CACHEKEYS_H
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