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
|
/* Copyright (c) 2003-2006 MySQL AB
Use is subject to license terms
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#define DBTUX_MAINT_CPP
#include "Dbtux.hpp"
/*
* Maintain index.
*/
void
Dbtux::execTUX_MAINT_REQ(Signal* signal)
{
jamEntry();
TuxMaintReq* const sig = (TuxMaintReq*)signal->getDataPtrSend();
// ignore requests from redo log
if (c_internalStartPhase < 6 &&
c_typeOfStart != NodeState::ST_NODE_RESTART &&
c_typeOfStart != NodeState::ST_INITIAL_NODE_RESTART) {
jam();
#ifdef VM_TRACE
if (debugFlags & DebugMaint) {
TupLoc tupLoc(sig->pageId, sig->pageIndex);
debugOut << "opInfo=" << hex << sig->opInfo;
debugOut << " tableId=" << dec << sig->tableId;
debugOut << " indexId=" << dec << sig->indexId;
debugOut << " fragId=" << dec << sig->fragId;
debugOut << " tupLoc=" << tupLoc;
debugOut << " tupVersion=" << dec << sig->tupVersion;
debugOut << " -- ignored at ISP=" << dec << c_internalStartPhase;
debugOut << " TOS=" << dec << c_typeOfStart;
debugOut << endl;
}
#endif
sig->errorCode = 0;
return;
}
TuxMaintReq reqCopy = *sig;
TuxMaintReq* const req = &reqCopy;
const Uint32 opCode = req->opInfo & 0xFF;
const Uint32 opFlag = req->opInfo >> 8;
// get the index
IndexPtr indexPtr;
c_indexPool.getPtr(indexPtr, req->indexId);
ndbrequire(indexPtr.p->m_tableId == req->tableId);
// get base fragment id and extra bits
const Uint32 fragId = req->fragId;
// get the fragment
FragPtr fragPtr;
fragPtr.i = RNIL;
for (unsigned i = 0; i < indexPtr.p->m_numFrags; i++) {
jam();
if (indexPtr.p->m_fragId[i] == fragId) {
jam();
c_fragPool.getPtr(fragPtr, indexPtr.p->m_fragPtrI[i]);
break;
}
}
ndbrequire(fragPtr.i != RNIL);
Frag& frag = *fragPtr.p;
// set up index keys for this operation
setKeyAttrs(frag);
// set up search entry
TreeEnt ent;
ent.m_tupLoc = TupLoc(req->pageId, req->pageIndex);
ent.m_tupVersion = req->tupVersion;
// read search key
readKeyAttrs(frag, ent, 0, c_searchKey);
if (! frag.m_storeNullKey) {
// check if all keys are null
const unsigned numAttrs = frag.m_numAttrs;
bool allNull = true;
for (unsigned i = 0; i < numAttrs; i++) {
if (c_searchKey[i] != 0) {
jam();
allNull = false;
break;
}
}
if (allNull) {
jam();
req->errorCode = 0;
*sig = *req;
return;
}
}
#ifdef VM_TRACE
if (debugFlags & DebugMaint) {
debugOut << "opCode=" << dec << opCode;
debugOut << " opFlag=" << dec << opFlag;
debugOut << " tableId=" << dec << req->tableId;
debugOut << " indexId=" << dec << req->indexId;
debugOut << " fragId=" << dec << req->fragId;
debugOut << " entry=" << ent;
debugOut << endl;
}
#endif
// do the operation
req->errorCode = 0;
TreePos treePos;
bool ok;
switch (opCode) {
case TuxMaintReq::OpAdd:
jam();
ok = searchToAdd(frag, c_searchKey, ent, treePos);
#ifdef VM_TRACE
if (debugFlags & DebugMaint) {
debugOut << treePos << (! ok ? " - error" : "") << endl;
}
#endif
if (! ok) {
jam();
// there is no "Building" state so this will have to do
if (indexPtr.p->m_state == Index::Online) {
jam();
req->errorCode = TuxMaintReq::SearchError;
}
break;
}
/*
* At most one new node is inserted in the operation. Pre-allocate
* it so that the operation cannot fail.
*/
if (frag.m_freeLoc == NullTupLoc) {
jam();
NodeHandle node(frag);
req->errorCode = allocNode(signal, node);
if (req->errorCode != 0) {
jam();
break;
}
// link to freelist
node.setLink(0, frag.m_freeLoc);
frag.m_freeLoc = node.m_loc;
ndbrequire(frag.m_freeLoc != NullTupLoc);
}
treeAdd(frag, treePos, ent);
break;
case TuxMaintReq::OpRemove:
jam();
ok = searchToRemove(frag, c_searchKey, ent, treePos);
#ifdef VM_TRACE
if (debugFlags & DebugMaint) {
debugOut << treePos << (! ok ? " - error" : "") << endl;
}
#endif
if (! ok) {
jam();
// there is no "Building" state so this will have to do
if (indexPtr.p->m_state == Index::Online) {
jam();
req->errorCode = TuxMaintReq::SearchError;
}
break;
}
treeRemove(frag, treePos);
break;
default:
ndbrequire(false);
break;
}
#ifdef VM_TRACE
if (debugFlags & DebugTree) {
printTree(signal, frag, debugOut);
}
#endif
// copy back
*sig = *req;
}
|