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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch)
tree67208f7c145782a7e90b123b982ca78d88cc2c87 /indexlib/leafdata.h
downloadtdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz
tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+#ifndef LPC_LEAFDATA_H1102530057_INCLUDE_GUARD_
+#define LPC_LEAFDATA_H1102530057_INCLUDE_GUARD_
+
+/* This file is part of indexlib.
+ * Copyright (C) 2005 Luís Pedro Coelho <luis@luispedro.org>
+ *
+ * Indexlib is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation and available as file
+ * GPL_V2 which is distributed along with indexlib.
+ *
+ * Indexlib 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this program with any edition of
+ * the Qt library by Trolltech AS, Norway (or with modified versions
+ * of Qt that use the same license as Qt), and distribute linked
+ * combinations including the two. You must obey the GNU General
+ * Public License in all respects for all of the code used other than
+ * Qt. If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from
+ * your version.
+ */
+
+
+#include <iostream>
+#include <iterator>
+#include <inttypes.h>
+#include "pointer.h"
+#include "memvector.h"
+#include "thing.h"
+
+void set_leafdata_manager( memory_manager* );
+memory_manager* get_leafdata_manager();
+
+struct leafdata_iterator : public std::iterator<STD_NAMESPACE_PREFIX input_iterator_tag,uint32_t> {
+ public:
+ explicit leafdata_iterator( const unsigned char* d ):
+ data_( d ),
+ value_( 0 ),
+ valid_( true )
+ {
+ }
+
+ value_type operator *() {
+ assert( valid_ );
+ valid_ = false;
+
+ uint32_t delta = *data_++;
+ if ( delta ) {
+ value_ += delta;
+ } else {
+ value_ = byte_io::read<uint32_t>( data_ );
+ data_ += byte_io::byte_lenght<uint32_t>();
+ }
+ return value_ - 1;
+ }
+
+ const unsigned char* raw() const { return data_; }
+
+ leafdata_iterator& operator ++ () {
+ valid_ = true;
+ return *this;
+ }
+ bool operator == ( const leafdata_iterator& other ) const {
+ return data_ == other.data_;
+ }
+ bool operator < ( const leafdata_iterator& other ) const {
+ return data_ < other.data_;
+ }
+ private:
+ const unsigned char* data_;
+ uint32_t value_;
+ bool valid_;
+};
+
+inline
+bool operator != ( const leafdata_iterator& one, const leafdata_iterator& other ) {
+ return !( one == other );
+}
+
+START_THING( leaf_data, thing< thing_manager<&get_leafdata_manager> > )
+ private:
+ MEMBER( uint16_t, capacity, 0 )
+ MEMBER( uint16_t, usedbytes, 2 )
+ friend class leaf_data_pool_traits;
+ static const unsigned data_offset = 4;
+ public:
+ MY_BASE( data_offset )
+ public:
+
+ typedef leafdata_iterator iterator;
+ leafdata_iterator begin() const { return iterator( const_cast<unsigned char*>( my_base() ) ); }
+ leafdata_iterator end() const { return iterator( const_cast<unsigned char*>( my_base() ) + usedbytes() ); }
+
+ uint32_t get_reference( unsigned idx ) const;
+ void add_reference( uint32_t );
+ void remove_reference( uint32_t );
+
+ bool has_reference( uint32_t ) const;
+ bool can_add( uint32_t ) const;
+
+ unsigned nelems() const;
+ unsigned next_byte_size() const;
+ void grow();
+
+ void print( std::ostream& out ) const;
+
+ static void construct( void* );
+ static void init( pointer<leaf_data> p ) { construct( p.raw_pointer() ); }
+ static unsigned start_bytes() { return 16; }
+END_THING( leaf_data )
+
+DO_POINTER_SPECS( leaf_data )
+
+
+typedef leaf_data leafdata;
+typedef leaf_dataptr leafdataptr;
+
+struct leaf_data_pool_traits {
+ typedef leaf_data value_type;
+ typedef leaf_dataptr pointer;
+
+ static bool is_free( pointer p ) { return p->capacity() == 0; }
+ static void mark_free( pointer p ) { memset( p.raw_pointer(), 0, p->capacity() ); }
+ static unsigned size_of( pointer p ) { return p->capacity() + leafdata::data_offset; }
+
+ static unsigned type_offset() { return 2; }
+
+ static unsigned min_size() { return leaf_data::start_bytes(); }
+ static unsigned max_size() { return 1024 * 64; }
+
+ static void set_manager( memory_manager* m ) { return set_leafdata_manager( m ); }
+ static void print( std::ostream& out, pointer p ) { out << '[' << p << "] leafdata:\n"; p->print( out ); }
+};
+
+
+#endif /* LPC_LEAFDATA_H1102530057_INCLUDE_GUARD_ */