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

1 files changed, 224 insertions, 0 deletions

diff --git a/indexlib/memvector.h b/indexlib/memvector.h
new file mode 100644
index 000000000..e251c4470
--- /dev/null
+++ b/indexlib/memvector.h
@@ -0,0 +1,224 @@
+#ifndef LPC_MEMVECTOR_H1105049836_INCLUDE_GUARD_
+#define LPC_MEMVECTOR_H1105049836_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 "memreference.h"
+#include "bitio.h"
+#include "compat.h"
+#include "manager.h"
+#include "boost-compat/static_assert.hpp"
+#include "boost-compat/scoped_ptr.hpp"
+#ifdef HAVE_BOOST
+#include <boost/type_traits/is_convertible.hpp>
+#endif
+#include <iostream>
+#include <iterator>
+#include <string>
+#include <cstring>
+#include <assert.h>
+
+template <typename> class memory_iterator;
+template <typename> class memvector;
+
+template <typename T>
+struct memory_iterator : public std::iterator<STD_NAMESPACE_PREFIX random_access_iterator_tag,T> {
+	private:
+	public:
+		template <typename U>
+		memory_iterator( const memory_iterator<U>& other ):
+			data_( const_cast<unsigned char*>( other.raw() ) )
+			{
+				BOOST_STATIC_ASSERT( (boost::is_convertible<U, T>::value ) );
+			}
+		explicit memory_iterator( unsigned char* d ):
+			data_( d )
+			{
+			}
+		T operator* () const {
+			return byte_io::read<T>( data_ );
+		}
+		memory_reference<T> operator* () {
+			return memory_reference<T>( data_ );
+		}
+
+		memory_iterator& operator ++() {
+			data_ += byte_io::byte_lenght<T>();
+			return *this;
+		}
+
+		memory_iterator& operator --() {
+			data_ -= byte_io::byte_lenght<T>();
+			return *this;
+		}
+
+		memory_iterator& operator += ( ptrdiff_t dif ) {
+			data_ += dif * byte_io::byte_lenght<T>();
+			return *this;
+		}
+
+		ptrdiff_t operator - ( const memory_iterator<T>& other ) const {
+			assert( !( ( raw() - other.raw() )%byte_io::byte_lenght<T>() ) );
+			return ( raw() - other.raw() )/byte_io::byte_lenght<T>();
+		}
+
+		bool operator < ( const memory_iterator<T>& other ) const {
+			return ( this->raw() - other.raw() ) < 0;
+		}
+		const unsigned char* raw() const { return data_; }
+	private:
+		unsigned char* data_;
+};
+
+template <typename T, typename U>
+inline
+bool operator == ( const memory_iterator<T>& a, const memory_iterator<U>& b ) {
+	return a.raw() == b.raw();
+}
+
+template <typename T, typename U>
+inline
+bool operator != ( const memory_iterator<T>& a, const memory_iterator<U>& b ) {
+	return !( a == b );
+}
+
+template <typename T, typename U>
+inline
+bool operator <= ( const memory_iterator<T>& a, const memory_iterator<U>& b ) {
+	return !( b < a );
+}
+
+
+
+template <typename T>
+inline
+memory_iterator<T> operator + ( memory_iterator<T> iter, typename memory_iterator<T>::difference_type dif ) {
+	iter += dif;
+	return iter;
+}
+
+template <typename T>
+inline
+memory_iterator<T>& operator -= ( memory_iterator<T>& iter, typename memory_iterator<T>::difference_type dif ) {
+	iter += -dif;
+	return iter;
+}
+
+template <typename T>
+inline
+memory_iterator<T> operator - ( memory_iterator<T> iter, typename memory_iterator<T>::difference_type  dif ) {
+	iter -= dif;
+	return iter;
+}
+
+
+template <typename T>
+inline
+memory_iterator<T> operator -- ( memory_iterator<T>& ref, int ) {
+	memory_iterator<T> copy = ref;
+	--ref;
+	return copy;
+}
+
+template<typename T>
+inline
+memory_iterator<T> operator ++ ( memory_iterator<T>& ref, int ) {
+	memory_iterator<T> copy = ref;
+	++ref;
+	return copy;
+}
+
+/**
+ * A vector of T kept on disk.
+ *
+ * The interface is a subset of std::vector<T>'s interface.
+ */
+template <typename T>
+struct memvector {
+	public:
+		memvector( std::string );
+		~memvector();
+
+		typedef T value_type;
+		typedef unsigned size_type;
+		typedef memory_iterator<T> iterator;
+		typedef memory_iterator<const T> const_iterator;
+
+		iterator begin() { return iterator( address_of( 0 ) ); }
+		iterator end() { return iterator( address_of( size() ) ); }
+
+		const_iterator begin() const { return const_iterator( address_of( 0 ) ); }
+		const_iterator end() const { return const_iterator( address_of( size() ) ); }
+
+		value_type operator[] ( unsigned idx ) const {
+			assert( idx < size() );
+			return byte_io::read<T>( address_of( idx ) );
+		}
+
+		memory_reference<T> operator[] ( unsigned idx ) {
+			assert( idx < size() );
+			return memory_reference<T>( address_of( idx ) );
+		}
+
+		/**
+		 * For debugging, nothing else
+		 */
+		void print( std::ostream& ) const;
+		size_type size() const { return byte_io::read<uint32_t>( data_->ronly_base( 0 ) ); }
+		bool empty() const { return !size(); }
+		void resize( size_type );
+
+		void insert( const_iterator, const value_type );
+		void erase( iterator );
+		void clear();
+		void push_back( value_type v ) { insert( end(), v ); }
+
+		/**
+		 * Removes from disk
+		 */
+		static void remove( std::string );
+
+	private:
+		boost::scoped_ptr<memory_manager> data_;
+		unsigned char* address_of( unsigned i ) {
+			return 	data_->rw_base(
+				byte_io::byte_lenght<unsigned>() +
+				i * byte_io::byte_lenght<T>() );
+		}
+		const unsigned char* address_of( unsigned i ) const {
+			return const_cast<memvector*>( this )->address_of( i );
+		}
+};
+
+#include "memvector.tcc"
+
+
+#endif /* LPC_MEMVECTOR_H1105049836_INCLUDE_GUARD_ */