1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef SERIALIZER_IMPL_H
#define SERIALIZER_IMPL_H
#include "ISerializer.h"
#include "creg_cond.h"
#ifdef USING_CREG
#include <map>
#include <vector>
#include <deque>
#include <istream>
namespace creg {
/**
* Output stream serializer
* Usage: create an instance of this class and call SavePackage
* @see SavePackage
*/
class COutputStreamSerializer : public ISerializer
{
protected:
struct ObjectMember {
Class::Member* member;
int memberId;
int size;
};
struct ObjectMemberGroup {
Class* membersClass;
std::vector<COutputStreamSerializer::ObjectMember> members;
int size;
};
struct ObjectRef {
ObjectRef() {
ptr = 0;
id=0;
classIndex=0;
isEmbedded=false;
class_=0;
}
ObjectRef(void* ptr, int id, bool isEmbedded, Class* class_) {
this->ptr = ptr;
this->id=id;
classIndex=0;
this->isEmbedded=isEmbedded;
this->class_=class_;
}
ObjectRef(const ObjectRef&src) :memberGroups(src.memberGroups){
ptr=src.ptr;
id=src.id;
classIndex=src.classIndex;
isEmbedded=src.isEmbedded;
class_=src.class_;
}
void* ptr;
int id, classIndex;
bool isEmbedded;
Class* class_;
std::vector<COutputStreamSerializer::ObjectMemberGroup> memberGroups;
bool isThisObject(void* objPtr, Class* objClass, bool objEmbedded) const
{
if (ptr != objPtr) return false;
if (class_ == objClass) return true;
if (isEmbedded && objEmbedded) return false;
if (!objEmbedded) {
for (Class* base=class_->base(); base; base=base->base())
if (base == objClass) return true;
}
if (!isEmbedded) {
for (Class* base=objClass->base(); base; base=base->base())
if (base == class_) return true;
}
return false;
}
};
// Temporary class reference
struct ClassRef;
std::ostream* stream;
std::map<void*,std::vector<ObjectRef*> > ptrToId;
std::deque<ObjectRef> objects;
std::vector<ObjectRef*> pendingObjects; // these objects still have to be saved
std::map<Class*, int> classSizes;
std::map<Class*, int> classCounts;
// Serialize all class names
void WriteObjectInfo();
// Helper for instance/ptr saving
void WriteObjectRef(void* inst, Class* cls, bool embedded);
ObjectRef* FindObjectRef(void* inst, Class* objClass, bool isEmbedded);
void SerializeObject(Class* c, void* ptr, ObjectRef* objr);
public:
COutputStreamSerializer();
/** Create a package of the given root object and all the objects that it references
* @param s stream to serialize the data to
* @param rootObj the rootObj: the starting point for finding all the objects to save
* @param cls the class of the root object
* This method throws an std::runtime_error when something goes wrong
*/
void SavePackage(std::ostream* s, void* rootObj, Class* cls);
/** @see ISerializer::IsWriting */
bool IsWriting();
/** @see ISerializer::SerializeObjectPtr */
void SerializeObjectPtr(void** ptr, Class* cls);
/** @see ISerializer::SerializeObjectInstance */
void SerializeObjectInstance(void* inst, Class* cls);
/** @see ISerializer::Serialize */
void Serialize(void* data, int byteSize);
/** @see ISerializer::SerializeInt */
void SerializeInt(void* data, int byteSize);
/** Empty function, only applies to loading */
void AddPostLoadCallback(void (*cb)(void* d), void* d) {}
};
/** Input stream serializer
* Usage: Create an instance of this class and call LoadPackage
* @see LoadPackage
*/
class CInputStreamSerializer : public ISerializer
{
protected:
std::istream* stream;
std::vector<Class*> classRefs;
struct UnfixedPtr {
void** ptrAddr;
int objID;
};
std::vector<UnfixedPtr> unfixedPointers; // pointers to embedded objects that haven't been filled yet, because they are not yet loaded
struct StoredObject
{
void* obj;
int classRef;
bool isEmbedded;
};
std::vector<StoredObject> objects;
struct PostLoadCallback
{
void (*cb)(void* d);
void* userdata;
};
std::vector<PostLoadCallback> callbacks;
void SerializeObject(Class* c, void* ptr);
public:
CInputStreamSerializer();
~CInputStreamSerializer();
/** @see ISerializer::IsWriting */
bool IsWriting();
/** @see ISerializer::SerializeObjectPtr */
void SerializeObjectPtr(void** ptr, Class* cls);
/** @see ISerializer::SerializeObjectInstance */
void SerializeObjectInstance(void* inst, Class* cls);
/** @see ISerializer::Serialize */
void Serialize(void* data, int byteSize);
/** @see ISerializer::SerializeInt */
void SerializeInt(void* data, int byteSize);
/** @see ISerializer::AddPostLoadCallback */
void AddPostLoadCallback(void (*cb)(void* userdata), void* userdata);
/** Load a package that is saved by CInputStreamSerializer
* @param s the input stream to read from
* @param root the root object address will be assigned to this
* @param rootCls the root object class will be assigned to this
* This method throws an std::runtime_error when something goes wrong */
void LoadPackage(std::istream* s, void*& root, Class*& rootCls);
};
}
#endif //USING_CREG
#endif //SERIALIZER_IMPL_H
|
