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
|
/* Copyright (c) 2003-2007 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef NdbReceiver_H
#define NdbReceiver_H
#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL // Not part of public interface
#include <ndb_types.h>
class Ndb;
class NdbTransaction;
class NdbReceiver
{
friend class Ndb;
friend class NdbOperation;
friend class NdbScanOperation;
friend class NdbIndexOperation;
friend class NdbIndexScanOperation;
friend class NdbTransaction;
public:
enum ReceiverType { NDB_UNINITIALIZED,
NDB_OPERATION = 1,
NDB_SCANRECEIVER = 2,
NDB_INDEX_OPERATION = 3
};
NdbReceiver(Ndb *aNdb);
int init(ReceiverType type, void* owner);
void release();
~NdbReceiver();
Uint32 getId(){
return m_id;
}
ReceiverType getType(){
return m_type;
}
inline NdbTransaction * getTransaction();
void* getOwner(){
return m_owner;
}
bool checkMagicNumber() const;
inline void next(NdbReceiver* next_arg) { m_next = next_arg;}
inline NdbReceiver* next() { return m_next; }
void setErrorCode(int);
private:
Uint32 theMagicNumber;
Ndb* m_ndb;
Uint32 m_id;
Uint32 m_tcPtrI;
Uint32 m_hidden_count;
ReceiverType m_type;
void* m_owner;
NdbReceiver* m_next;
/**
* At setup
*/
class NdbRecAttr * getValue(const class NdbColumnImpl*, char * user_dst_ptr);
int do_get_value(NdbReceiver*, Uint32 rows, Uint32 key_size, Uint32 range);
void prepareSend();
void calculate_batch_size(Uint32, Uint32, Uint32&, Uint32&, Uint32&);
int execKEYINFO20(Uint32 info, const Uint32* ptr, Uint32 len);
int execTRANSID_AI(const Uint32* ptr, Uint32 len);
int execTCOPCONF(Uint32 len);
int execSCANOPCONF(Uint32 tcPtrI, Uint32 len, Uint32 rows);
class NdbRecAttr* theFirstRecAttr;
class NdbRecAttr* theCurrentRecAttr;
class NdbRecAttr** m_rows;
Uint32 m_list_index; // When using multiple
Uint32 m_current_row;
Uint32 m_result_rows;
Uint32 m_defined_rows;
Uint32 m_expected_result_length;
Uint32 m_received_result_length;
bool nextResult() const { return m_current_row < m_result_rows; }
NdbRecAttr* copyout(NdbReceiver&);
};
#ifdef NDB_NO_DROPPED_SIGNAL
#include <stdlib.h>
#endif
inline
bool
NdbReceiver::checkMagicNumber() const {
bool retVal = (theMagicNumber == 0x11223344);
#ifdef NDB_NO_DROPPED_SIGNAL
if(!retVal){
abort();
}
#endif
return retVal;
}
inline
void
NdbReceiver::prepareSend(){
m_current_row = 0;
m_received_result_length = 0;
m_expected_result_length = 0;
theCurrentRecAttr = theFirstRecAttr;
}
inline
int
NdbReceiver::execTCOPCONF(Uint32 len){
Uint32 tmp = m_received_result_length;
m_expected_result_length = len;
#ifdef assert
assert(!(tmp && !len));
#endif
return ((bool)len ^ (bool)tmp ? 0 : 1);
}
inline
int
NdbReceiver::execSCANOPCONF(Uint32 tcPtrI, Uint32 len, Uint32 rows){
m_tcPtrI = tcPtrI;
m_result_rows = rows;
Uint32 tmp = m_received_result_length;
m_expected_result_length = len;
return (tmp == len ? 1 : 0);
}
#endif // DOXYGEN_SHOULD_SKIP_INTERNAL
#endif
|
