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Diffstat (limited to 'tdecore/ksycocadict.h')
-rw-r--r-- | tdecore/ksycocadict.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/tdecore/ksycocadict.h b/tdecore/ksycocadict.h deleted file mode 100644 index 79f1432e8..000000000 --- a/tdecore/ksycocadict.h +++ /dev/null @@ -1,123 +0,0 @@ -/* This file is part of the KDE libraries - * Copyright (C) 1999 Waldo Bastian <bastian@kde.org> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License version 2 as published by the Free Software Foundation; - * - * This library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - **/ - -#ifndef __ksycocadict_h__ -#define __ksycocadict_h__ - -#include <tqstring.h> -#include <tqvaluelist.h> -#include <tqdatastream.h> -#include "tdelibs_export.h" - -class KSycocaEntry; -class KSycocaDictStringList; - -/** - * @internal - * Hash table implementation for the sycoca database file - */ -class TDECORE_EXPORT KSycocaDict -{ -public: - /** - * Create an empty dict, for building the database - */ - KSycocaDict(); - /** - * Create a dict from an existing database - */ - KSycocaDict(TQDataStream *str, int offset); - - ~KSycocaDict(); - - /** - * Adds a 'payload' to the dictionary with key 'key'. - * - * 'payload' should have a valid offset by the time - * the dictionary gets saved. - **/ - void add(const TQString &key, KSycocaEntry *payload); - - /** - * Removes the 'payload' from the dictionary with key 'key'. - * - * Not very fast, use with care O(N) - **/ - void remove(const TQString &key); - - /** - * Looks up an entry identified by 'key'. - * - * If 0 is returned, no matching entry exists. - * Otherwise, the offset of the entry is returned. - * - * NOTE: It is not guaranteed that this entry is - * indeed the one you were looking for. - * After loading the entry you should check that it - * indeed matches the search key. If it doesn't - * then no matching entry exists. - */ - int find_string(const TQString &key ); - - /** - * The number of entries in the dictionary. - * - * Only valid when building the database. - */ - uint count(); - - /** - * Reset the dictionary. - * - * Only valid when building the database. - */ - void clear(); - - /** - * Save the dictionary to the stream - * A reasonable fast hash algorithm will be created. - * - * Typically this will find 90% of the entries directly. - * Average hash table size: nrOfItems * 20 bytes. - * Average duplicate list size: nrOfItms * avgKeyLength / 5. - * - * Unknown keys have an average 20% chance to give a false hit. - * (That's why your program should check the result) - * - * Example: - * Assume 1000 items with an average key length of 60 bytes. - * - * Approx. 900 items will hash directly to the right entry. - * Approx. 100 items require a lookup in the duplicate list. - * - * The hash table size will be approx. 20Kb. - * The duplicate list size will be approx. 12Kb. - **/ - void save(TQDataStream &str); - -protected: - TQ_UINT32 hashKey( const TQString &); -private: - KSycocaDictStringList *d; - TQDataStream *mStr; - TQ_INT32 mOffset; - TQ_UINT32 mHashTableSize; - TQValueList<TQ_INT32> mHashList; -}; - -#endif |