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
|
#ifndef HELPER_HPP
#define HELPER_HPP 1
/*
* This file is deprecated and will be removed soon!
* Please use ksocket/ksocket.hpp and ksocket/protocol.hpp
* to achieve the same.
*/
#include <protobuf-c/protobuf-c.h>
#include <stdint.h>
#include <stdlib.h>
#include <EASTL/algorithm.h>
#include <EASTL/array.h>
#include <EASTL/initializer_list.h>
#include <EASTL/string.h>
#include <EASTL/vector.h>
#include <ksocket/utils.h>
#ifndef SOCKET_ERROR
#define SOCKET_ERROR -1
#endif
#define SEND_ALL(sock, socket_buffer, retval) \
if (socket_buffer.GetRemainingSendSize() > 0) { \
do { \
retval = send(sock, socket_buffer.GetStartS(), \
socket_buffer.GetRemainingSendSize(), 0); \
if (retval == SOCKET_ERROR || retval == 0) \
break; \
if (!socket_buffer.Consume(iResult)) \
break; \
} while (!socket_buffer.AllConsumed()); \
socket_buffer.Sweep(); \
}
#define RECV_PDU_BEGIN(sock, socket_buffer, retval, pdu_type, pdu_len) \
do { \
if (socket_buffer.GetRemainingRecvSize() == 0) \
break; \
uint16_t pdu_type; \
uint32_t pdu_len; \
do { \
retval = recv(sock, socket_buffer.GetStartS(), \
socket_buffer.GetRemainingRecvSize(), 0); \
if (retval == SOCKET_ERROR || retval == 0) \
break; \
} while (!socket_buffer.GetPdu(retval, pdu_type, pdu_len));
#define RECV_PDU_END(socket_buffer, pdu_len) \
socket_buffer.Consume(pdu_len); \
socket_buffer.Sweep(); \
} \
while (0)
class BaseSerializer {
public:
virtual uint16_t GetPduType(void) = 0;
virtual size_t GetSerializedSize(void) = 0;
virtual size_t Serialize(uint8_t *buf) = 0;
};
class BaseDeserializer {
public:
virtual bool Deserialize(size_t pdu_len, uint8_t *buf) = 0;
virtual void DeserializeFree(void) = 0;
};
template <size_t SIZE> class SocketBuffer {
public:
SocketBuffer(void) {}
~SocketBuffer(void) {}
size_t GetRemainingSendSize(void) { return GetUsed(); }
size_t GetRemainingRecvSize(void) { return GetSize() - GetUsed(); }
uint8_t *GetStart(void) { return buffer + consumed; }
char *GetStartS(void) { return (char *)buffer + consumed; }
bool SizeCheck(size_t required_size) { return used + required_size < SIZE; };
template <typename T> bool GetPrimitve(size_t offset, T &out) {
if (offset + sizeof(out) > used)
return false;
out = *(T *)(GetStart() + offset);
return true;
}
template <typename T> bool AddPrimitve(T value) {
if (!SizeCheck(sizeof(value)))
return false;
*(T *)(GetEnd()) = value;
used += sizeof(value);
return true;
}
bool GetPdu(size_t received_size, uint16_t &pdu_type, uint32_t &pdu_len) {
if (received_size > SIZE - used)
return false; // You did something wrong!
used += received_size;
if (used < sizeof(pdu_type) + sizeof(pdu_len))
return false;
if (GetPrimitve<uint32_t>(0, pdu_len) == false)
return false;
if (GetPrimitve<uint16_t>(4, pdu_type) == false)
return false;
pdu_len = ntohl(pdu_len);
pdu_type = ntohs(pdu_type);
if (used < sizeof(pdu_type) + sizeof(pdu_len) + pdu_len)
return false;
consumed += sizeof(pdu_type) + sizeof(pdu_len);
return true;
}
bool AddPdu(BaseSerializer &bs) {
uint16_t pdu_type = bs.GetPduType();
uint32_t pdu_len = bs.GetSerializedSize();
if (!SizeCheck(sizeof(pdu_type) + sizeof(pdu_len) + pdu_len))
return false;
if (!AddPrimitve<uint32_t>(htonl(pdu_len)))
return false;
if (!AddPrimitve<uint16_t>(htons(pdu_type)))
return false;
if (bs.Serialize(GetEnd()) != pdu_len)
return false;
used += pdu_len;
return true;
}
bool AllConsumed(void) { return used == consumed; }
bool Consume(size_t consuming_size) {
if (consuming_size + consumed > used)
return false;
consumed += consuming_size;
return true;
}
void Sweep() {
if (consumed == 0)
return;
if (used != consumed)
memmove(buffer, buffer + consumed, used - consumed);
used -= consumed;
consumed = 0;
}
private:
uint8_t buffer[SIZE];
size_t used = 0;
size_t consumed = 0;
size_t GetSize(void) { return SIZE; }
size_t GetUsed(void) { return used - consumed; }
uint8_t *GetEnd() { return buffer + used; }
};
class ProtobufCBinaryDataClass : public ProtobufCBinaryData {
public:
ProtobufCBinaryDataClass(std::initializer_list<uint8_t> bytes) {
len = bytes.size();
data = new uint8_t[len];
eastl::copy(bytes.begin(), bytes.end(), data);
}
~ProtobufCBinaryDataClass(void) { delete data; }
};
#endif
|