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source: code/trunk/src/libraries/network/synchronisable/Serialise.h @ 7163

Last change on this file since 7163 was 7163, checked in by dafrick, 14 years ago

Merged presentation3 branch into trunk.

  • Property svn:eol-style set to native
File size: 5.9 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Oliver Scheuss
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30    @file
31    @brief Functions to serialise pointers to objects that inherit from Synchronisable
32*/
33
34#ifndef _NetworkSerialise_H__
35#define _NetworkSerialise_H__
36
37#include "util/Serialise.h"
38#include "util/TypeTraits.h"
39#include "core/CorePrereqs.h"
40#include "core/CoreIncludes.h"
41#include "core/SmartPtr.h"
42
43namespace orxonox{
44   
45    // These functions implement loading / saving / etc. for pointer types
46   
47    /** @brief returns the size of the objectID needed to synchronise the pointer */
48    template <class T> inline uint32_t returnSize( T*& variable )
49    {
50      return sizeof(uint32_t);
51    }
52   
53    /** @brief reads the objectID of a pointer out of the bytestream and increases the mem pointer */
54    template <class T> inline void loadAndIncrease( T*& variable, uint8_t*& mem )
55    {
56        *const_cast<typename Loki::TypeTraits<T*>::UnqualifiedType*>(&variable) = dynamic_cast<T*>(variable->getSynchronisable( *(uint32_t*)(mem) ));
57        mem += returnSize( variable );
58    }
59   
60    /** @brief saves the objectID of a pointer into the bytestream and increases the mem pointer */
61    template <class T> inline void saveAndIncrease( T*& variable, uint8_t*& mem )
62    {
63        if ( variable )
64            *(uint32_t*)(mem) = static_cast<uint32_t>(variable->getObjectID());
65        else
66            *(uint32_t*)(mem) = OBJECTID_UNKNOWN;
67        mem += returnSize( variable );
68    }
69   
70    /** @brief checks whether the objectID of the variable is the same as in the bytestream */
71    template <class T> inline  bool checkEquality( T*& variable, uint8_t* mem )
72    {
73        if ( variable )
74            return *(uint32_t*)(mem) == variable->getObjectID();
75        else
76            return variable == variable->getSynchronisable(*(uint32_t*)(mem));
77    }
78   
79    // These functions implement loading / saving / etc. for SmartPtr<T>
80   
81    /** @brief returns the size of the objectID needed to synchronise the pointer */
82    template <class T> inline uint32_t returnSize( const SmartPtr<T>& variable )
83    {
84        return sizeof(uint32_t);
85    }
86   
87    /** @brief reads the objectID of a pointer out of the bytestream and increases the mem pointer */
88    template <class T> inline void loadAndIncrease( const SmartPtr<T>& variable, uint8_t*& mem )
89    {
90//         *const_cast<typename Loki::TypeTraits<T*>::UnqualifiedType*>(&variable) = dynamic_cast<T*>(variable->getSynchronisable( *(uint32_t*)(mem) ));
91        *const_cast<typename Loki::TypeTraits<SmartPtr<T> >::UnqualifiedType*>(&variable) = orxonox_cast<T*>(T::getSynchronisable(*(uint32_t*)(mem)));
92        mem += returnSize( variable );
93    }
94   
95    /** @brief saves the objectID of a pointer into the bytestream and increases the mem pointer */
96    template <class T> inline void saveAndIncrease( const SmartPtr<T>& variable, uint8_t*& mem )
97    {
98        if ( variable.get() )
99            *(uint32_t*)(mem) = static_cast<uint32_t>(variable->getObjectID());
100        else
101            *(uint32_t*)(mem) = OBJECTID_UNKNOWN;
102        mem += returnSize( variable );
103    }
104   
105    /** @brief checks whether the objectID of the variable is the same as in the bytestream */
106    template <class T> inline  bool checkEquality( const SmartPtr<T>& variable, uint8_t* mem )
107    {
108        if ( variable.get() )
109            return *(uint32_t*)(mem) == variable->getObjectID();
110        else
111            return *(uint32_t*)(mem) == OBJECTID_UNKNOWN;
112    }
113   
114    // These functions implement loading / saving / etc. for WeakPtr<T>
115   
116    /** @brief returns the size of the objectID needed to synchronise the pointer */
117    template <class T> inline uint32_t returnSize( const WeakPtr<T>& variable )
118    {
119        return sizeof(uint32_t);
120    }
121   
122    /** @brief reads the objectID of a pointer out of the bytestream and increases the mem pointer */
123    template <class T> inline void loadAndIncrease( const WeakPtr<T>& variable, uint8_t*& mem )
124    {
125        //         *const_cast<typename Loki::TypeTraits<T*>::UnqualifiedType*>(&variable) = dynamic_cast<T*>(variable->getSynchronisable( *(uint32_t*)(mem) ));
126        *const_cast<typename Loki::TypeTraits<SmartPtr<T> >::UnqualifiedType*>(&variable) = orxonox_cast<T*>(T::getSynchronisable(*(uint32_t*)(mem)));
127        mem += returnSize( variable );
128    }
129   
130    /** @brief saves the objectID of a pointer into the bytestream and increases the mem pointer */
131    template <class T> inline void saveAndIncrease( const WeakPtr<T>& variable, uint8_t*& mem )
132    {
133        if ( variable.get() )
134            *(uint32_t*)(mem) = static_cast<uint32_t>(variable->getObjectID());
135        else
136            *(uint32_t*)(mem) = OBJECTID_UNKNOWN;
137        mem += returnSize( variable );
138    }
139   
140    /** @brief checks whether the objectID of the variable is the same as in the bytestream */
141    template <class T> inline  bool checkEquality( const WeakPtr<T>& variable, uint8_t* mem )
142    {
143        if ( variable.get() )
144            return *(uint32_t*)(mem) == variable->getObjectID();
145        else
146            return *(uint32_t*)(mem) == OBJECTID_UNKNOWN;
147    }
148}
149
150
151#endif
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