-
Notifications
You must be signed in to change notification settings - Fork 4
/
db2i_ileBridge.cc
1466 lines (1163 loc) · 38.5 KB
/
db2i_ileBridge.cc
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
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Licensed Materials - Property of IBM
DB2 Storage Engine Enablement
Copyright IBM Corporation 2007,2008
All rights reserved
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
(a) Redistributions of source code must retain this list of conditions, the
copyright notice in section {d} below, and the disclaimer following this
list of conditions.
(b) Redistributions in binary form must reproduce this list of conditions, the
copyright notice in section (d) below, and the disclaimer following this
list of conditions, in the documentation and/or other materials provided
with the distribution.
(c) The name of IBM may not be used to endorse or promote products derived from
this software without specific prior written permission.
(d) The text of the required copyright notice is:
Licensed Materials - Property of IBM
DB2 Storage Engine Enablement
Copyright IBM Corporation 2007,2008
All rights reserved
THIS SOFTWARE IS PROVIDED BY IBM CORPORATION "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL IBM CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "db2i_ileBridge.h"
#include "my_dbug.h"
#include "db2i_global.h"
#include "db2i_charsetSupport.h"
#include "db2i_errors.h"
// static class member data
ILEpointer* db2i_ileBridge::functionSymbols;
db2i_ileBridge* db2i_ileBridge::globalBridge;
#ifndef DBUG_OFF
uint32 db2i_ileBridge::registeredPtrs;
#endif
pthread_key(IleParms*, THR_ILEPARMS);
static void ileParmsDtor(void* parmsToFree)
{
if (parmsToFree)
{
free_aligned(parmsToFree);
DBUG_PRINT("db2i_ileBridge", ("Freeing space for parms"));
}
}
/**
Convert a timestamp in ILE time format into a unix time_t
*/
static time_t convertILEtime(const ILE_time_t& input)
{
tm temp;
temp.tm_sec = input.Second;
temp.tm_min = input.Minute;
temp.tm_hour = input.Hour;
temp.tm_mday = input.Day;
temp.tm_mon = input.Month-1;
temp.tm_year = input.Year - 1900;
temp.tm_isdst = -1;
return mktime(&temp);
}
/**
Allocate and intialize a new bridge structure
*/
db2i_ileBridge* db2i_ileBridge::createNewBridge(CONNECTION_HANDLE connID)
{
DBUG_PRINT("db2i_ileBridge::createNewBridge",("Building new bridge..."));
db2i_ileBridge* newBridge = (db2i_ileBridge*)my_malloc(sizeof(db2i_ileBridge), MYF(MY_WME));
if (unlikely(newBridge == NULL))
return NULL;
newBridge->stmtTxActive = false;
newBridge->connErrText = NULL;
newBridge->pendingLockedHandles.head = NULL;
newBridge->cachedConnectionID = connID;
return newBridge;
}
void db2i_ileBridge::destroyBridge(db2i_ileBridge* bridge)
{
bridge->freeErrorStorage();
my_free(bridge);
}
void db2i_ileBridge::destroyBridgeForThread(const THD* thd)
{
void* thdData = *thd_ha_data(thd, ibmdb2i_hton);
if (thdData != NULL)
{
destroyBridge((db2i_ileBridge*)thdData);
}
}
void db2i_ileBridge::registerPtr(const void* ptr, ILEMemHandle* receiver)
{
static const arg_type_t ileSignature[] = { ARG_MEMPTR, ARG_END };
if (unlikely(ptr == NULL))
{
*receiver = 0;
return;
}
struct ArgList
{
ILEarglist_base base;
ILEpointer ptr;
} *arguments;
char argBuf[sizeof(ArgList)+15];
arguments = (ArgList*)roundToQuadWordBdy(argBuf);
arguments->ptr.s.addr = (address64_t)(ptr);
_ILECALL(&functionSymbols[funcRegisterSpace],
&arguments->base,
ileSignature,
RESULT_INT64);
#ifndef DBUG_OFF
uint32 truncHandle = arguments->base.result.r_uint64;
DBUG_PRINT("db2i_ileBridge::registerPtr",("Register 0x%p with handle %d", ptr, truncHandle));
globalBridge->registeredPtrs++;//TODO: investigate why the thread-specific one does not work on plugin install
#endif
*receiver = arguments->base.result.r_uint64;
return;
}
void db2i_ileBridge::unregisterPtr(ILEMemHandle handle)
{
static const arg_type_t ileSignature[] = { ARG_UINT64, ARG_END };
if (unlikely(handle == (ILEMemHandle) NULL))
return;
struct ArgList
{
ILEarglist_base base;
uint64 handle;
} *arguments;
char argBuf[sizeof(ArgList)+15];
arguments = (ArgList*)roundToQuadWordBdy(argBuf);
arguments->handle = (uint64)(handle);
_ILECALL(&functionSymbols[funcUnregisterSpace],
&arguments->base,
ileSignature,
RESULT_VOID);
#ifndef DBUG_OFF
DBUG_PRINT("db2i_ileBridge::unregisterPtr",("Unregister handle %d", (uint32)handle));
globalBridge->registeredPtrs--; //TODO: investigate why thread-specific one doesn't work on plugin install
#endif
}
/**
Initialize the bridge component
@details Resolves srvpgm and function names of the APIs. If this fails,
the approrpiate operating system support (PTFs) is probably not installed.
WARNING:
Must be called before any other functions in this class are used!!!!
Can only be called by a single thread!
*/
int db2i_ileBridge::setup()
{
static const char funcNames[db2i_ileBridge::funcListEnd][32] =
{
{"QmyRegisterParameterSpaces"},
{"QmyRegisterSpace"},
{"QmyUnregisterSpace"},
{"QmyProcessRequest"}
};
DBUG_ENTER("db2i_ileBridge::setup");
int actmark = _ILELOAD("QSYS/QMYSE", ILELOAD_LIBOBJ);
if ( actmark == -1 )
{
DBUG_PRINT("db2i_ileBridge::setup", ("srvpgm activation failed"));
DBUG_RETURN(1);
}
functionSymbols = (ILEpointer*)malloc_aligned(sizeof(ILEpointer) * db2i_ileBridge::funcListEnd);
for (int i = 0; i < db2i_ileBridge::funcListEnd; i++)
{
if (_ILESYM(&functionSymbols[i], actmark, funcNames[i]) == -1)
{
DBUG_PRINT("db2i_ileBridge::setup",
("resolve of %s failed", funcNames[i]));
DBUG_RETURN(errno);
}
DBUG_PRINT("db2i_ileBridge::setup", (" (adc) ok srvpgm name %s %p", funcNames[i], &functionSymbols[i]));
}
pthread_key_create(&THR_ILEPARMS, &ileParmsDtor);
#ifndef DBUG_OFF
registeredPtrs = 0;
#endif
globalBridge = createNewBridge(0);
DBUG_PRINT("db2i_ileBridge::setup", (" (adc) leaving"));
DBUG_RETURN(0);
}
/**
Cleanup any resources before shutting down plug-in
*/
void db2i_ileBridge::takedown()
{
if (globalBridge)
destroyBridge(globalBridge);
free_aligned(functionSymbols);
}
/**
Call off to QmyProcessRequest to perform the API that the caller prepared
*/
int32 db2i_ileBridge::doIt()
{
static const arg_type_t ileSignature[] = {ARG_END};
struct ArgList
{
ILEarglist_base base;
} *arguments;
char argBuf[sizeof(ArgList)+15];
DBUG_ENTER("db2i_ileBridge::doIt");
arguments = (ArgList*)roundToQuadWordBdy(argBuf);
DBUG_PRINT("db2i_ileBridge::doIt",("(adc) before _ILECALL arguments %p %p", &functionSymbols[funcProcessRequest], &arguments->base));
_ILECALL(&functionSymbols[funcProcessRequest],
&arguments->base,
ileSignature,
RESULT_INT32);
DBUG_PRINT("db2i_ileBridge::doIt",("(adc) after _ILECALL rc %d", arguments->base.result.s_int32.r_int32));
DBUG_RETURN(translateErrorCode(arguments->base.result.s_int32.r_int32));
}
/**
Call off to QmyProcessRequest to perform the API that the caller prepared and
log any errors that may occur.
*/
int32 db2i_ileBridge::doItWithLog()
{
int32 rc = doIt();
if (unlikely(rc))
{
// Only report errors that we weren't expecting
if (rc != tacitErrors[0] &&
rc != tacitErrors[1] &&
rc != QMY_ERR_END_OF_BLOCK)
reportSystemAPIError(rc, (Qmy_Error_output_t*)parms()->outParms);
}
memset(tacitErrors, 0, sizeof(tacitErrors));
return rc;
}
/**
Interface to QMY_ALLOCATE_SHARE API
See QMY_ALLOCATE_SHARE documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::allocateFileDefn(ILEMemHandle definitionSpace,
ILEMemHandle handleSpace,
uint16 fileCount,
const char* schemaName,
uint16 schemaNameLength,
ILEMemHandle formatSpace,
uint32 formatSpaceLen)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MAOS0100 *input = (Qmy_MAOS0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_ALLOCATE_SHARE;
input->ShrDefSpcHnd = definitionSpace;
input->ShrHndSpcHnd = handleSpace;
input->ShrDefCnt = fileCount;
input->FmtSpcHnd = formatSpace;
input->FmtSpcLen = formatSpaceLen;
if (schemaNameLength > sizeof(input->SchNam))
{
// This should never happen!
DBUG_ASSERT(0);
return HA_ERR_GENERIC;
}
memcpy(input->SchNam, schemaName, schemaNameLength);
input->SchNamLen = schemaNameLength;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_ALLOCATE_INSTANCE API
See QMY_ALLOCATE_INSTANCE documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::allocateFileInstance(FILE_HANDLE defnHandle,
ILEMemHandle inuseSpace,
FILE_HANDLE* instance)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MAOI0100 *input = (Qmy_MAOI0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_ALLOCATE_INSTANCE;
input->ShrHnd = defnHandle;
input->CnnHnd = cachedConnectionID;
input->UseSpcHnd = inuseSpace;
int32 rc = doItWithLog();
if (likely(rc == 0))
{
Qmy_MAOI0100_output* output = (Qmy_MAOI0100_output*)parmBlock->outParms;
DBUG_ASSERT(instance);
*instance = output->ObjHnd;
}
return rc;
}
/**
Interface to QMY_DEALLOCATE_OBJECT API
See QMY_DEALLOCATE_OBJECT documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::deallocateFile(FILE_HANDLE rfileHandle,
bool postDropTable)
{
IleParms* parmBlock = parms();
Qmy_MDLC0100 *input = (Qmy_MDLC0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_DEALLOCATE_OBJECT;
input->ObjHnd = rfileHandle;
input->ObjDrp[0] = (postDropTable ? QMY_YES : QMY_NO);
DBUG_PRINT("db2i_ileBridge::deallocateFile", ("Deallocating %d", (uint32)rfileHandle));
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_OBJECT_INITIALIZATION API
See QMY_OBJECT_INITIALIZATION documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::initFileForIO(FILE_HANDLE rfileHandle,
char accessIntent,
char commitLevel,
uint16* inRecSize,
uint16* inRecNullOffset,
uint16* outRecSize,
uint16* outRecNullOffset)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MOIX0100 *input = (Qmy_MOIX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_OBJECT_INITIALIZATION;
input->CmtLvl[0] = commitLevel;
input->Intent[0] = accessIntent;
input->ObjHnd = rfileHandle;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
if (likely(rc == 0))
{
Qmy_MOIX0100_output* output = (Qmy_MOIX0100_output*)parmBlock->outParms;
*inRecSize = output->InNxtRowOff;
*inRecNullOffset = output->InNullMapOff;
*outRecSize = output->OutNxtRowOff;
*outRecNullOffset = output->OutNullMapOff;
}
return rc;
}
/**
Interface to QMY_READ_ROWS API for reading a row with a specific RRN.
See QMY_READ_ROWS documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::readByRRN(FILE_HANDLE rfileHandle,
ILEMemHandle buf,
uint32 inRRN,
char accessIntent,
char commitLevel)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MRDX0100 *input = (Qmy_MRDX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_READ_ROWS;
input->CmtLvl[0] = commitLevel;
input->ObjHnd = rfileHandle;
input->Intent[0] = accessIntent;
input->OutSpcHnd = (uint64)buf;
input->RelRowNbr = inRRN;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
if (rc == QMY_ERR_END_OF_BLOCK)
{
rc = 0;
DBUG_PRINT("db2i_ileBridge::readByRRN", ("End of block signalled"));
}
return rc;
}
/**
Interface to QMY_WRITE_ROWS API.
See QMY_WRITE_ROWS documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::writeRows(FILE_HANDLE rfileHandle,
ILEMemHandle buf,
char commitLevel,
int64* outIdVal,
bool* outIdGen,
uint32* dupKeyRRN,
char** dupKeyName,
uint32* dupKeyNameLen,
uint32* outIdIncrement)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MWRT0100 *input = (Qmy_MWRT0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_WRITE_ROWS;
input->CmtLvl[0] = commitLevel;
input->ObjHnd = rfileHandle;
input->InSpcHnd = (uint64_t) buf;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
Qmy_MWRT0100_output_t* output = (Qmy_MWRT0100_output_t*)parmBlock->outParms;
if (likely(rc == 0 || rc == HA_ERR_FOUND_DUPP_KEY))
{
DBUG_ASSERT(dupKeyRRN && dupKeyName && dupKeyNameLen && outIdGen && outIdIncrement && outIdVal);
*dupKeyRRN = output->DupRRN;
*dupKeyName = (char*)parmBlock->outParms + output->DupObjNamOff;
*dupKeyNameLen = output->DupObjNamLen;
*outIdGen = (output->NewIdGen[0] == QMY_YES ? TRUE : FALSE);
if (*outIdGen == TRUE)
{
*outIdIncrement = output->IdIncrement;
*outIdVal = output->NewIdVal;
}
}
return rc;
}
/**
Interface to QMY_EXECUTE_IMMEDIATE API.
See QMY_EXECUTE_IMMEDIATE documentation for more information about
parameters and return codes.
*/
uint32 db2i_ileBridge::execSQL(const char* statement,
uint32 statementCount,
uint8 commitLevel,
bool autoCreateSchema,
bool dropSchema,
bool noCommit,
FILE_HANDLE fileHandle)
{
IleParms* parmBlock = parms();
Qmy_MSEI0100 *input = (Qmy_MSEI0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_EXECUTE_IMMEDIATE;
registerPtr(statement, &input->StmtsSpcHnd);
input->NbrStmts = statementCount;
*(uint16*)(&input->StmtCCSID) = 850;
input->AutoCrtSchema[0] = (autoCreateSchema == TRUE ? QMY_YES : QMY_NO);
input->DropSchema[0] = (dropSchema == TRUE ? QMY_YES : QMY_NO);
input->CmtLvl[0] = commitLevel;
if ((commitLevel == QMY_NONE && statementCount == 1) || noCommit)
{
input->CmtBefore[0] = QMY_NO;
input->CmtAfter[0] = QMY_NO;
}
else
{
input->CmtBefore[0] = QMY_YES;
input->CmtAfter[0] = QMY_YES;
}
input->CnnHnd = current_thd->thread_id;
input->ObjHnd = fileHandle;
int32 rc = doItWithLog();
unregisterPtr(input->StmtsSpcHnd);
return rc;
}
/**
Interface to QMY_PREPARE_OPEN_CURSOR API.
See QMY_PREPARE_OPEN_CURSOR documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::prepOpen(const char* statement,
FILE_HANDLE* rfileHandle,
uint32* recLength)
{
IleParms* parmBlock = parms();
Qmy_MSPO0100 *input = (Qmy_MSPO0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_PREPARE_OPEN_CURSOR;
registerPtr(statement, &input->StmtsSpcHnd );
*(uint16*)(&input->StmtCCSID) = 850;
input->CnnHnd = current_thd->thread_id;
int32 rc = doItWithLog();
if (likely(rc == 0))
{
Qmy_MSPO0100_output* output = (Qmy_MSPO0100_output*)parmBlock->outParms;
*rfileHandle = output->ObjHnd;
*recLength = std::max(output->InNxtRowOff, output->OutNxtRowOff);
}
unregisterPtr(input->StmtsSpcHnd);
return rc;
}
/**
Interface to QMY_DELETE_ROW API.
See QMY_DELETE_ROW documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::deleteRow(FILE_HANDLE rfileHandle,
uint32 rrn)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MDLT0100 *input = (Qmy_MDLT0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_DELETE_ROW;
input->ObjHnd = rfileHandle;
input->RelRowNbr = rrn;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_UPDATE_ROW API.
See QMY_UPDATE_ROW documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::updateRow(FILE_HANDLE rfileHandle,
uint32 rrn,
ILEMemHandle buf,
uint32* dupKeyRRN,
char** dupKeyName,
uint32* dupKeyNameLen)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MUPD0100 *input = (Qmy_MUPD0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_UPDATE_ROW;
input->ObjHnd = rfileHandle;
input->InSpcHnd = (uint64)buf;
input->RelRowNbr = rrn;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
if (rc == HA_ERR_FOUND_DUPP_KEY)
{
Qmy_MUPD0100_output* output = (Qmy_MUPD0100_output*)parmBlock->outParms;
DBUG_ASSERT(dupKeyRRN && dupKeyName && dupKeyNameLen);
*dupKeyRRN = output->DupRRN;
*dupKeyName = (char*)parmBlock->outParms + output->DupObjNamOff;
*dupKeyNameLen = output->DupObjNamLen;
}
return rc;
}
/**
Interface to QMY_DESCRIBE_RANGE API.
See QMY_DESCRIBE_RANGE documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::recordsInRange(FILE_HANDLE defnHandle,
ILEMemHandle inSpc,
uint32 inKeyCnt,
uint32 inLiteralCnt,
uint32 inBoundsOff,
uint32 inLitDefOff,
uint32 inLiteralsOff,
uint32 inCutoff,
uint32 inSpcLen,
uint16 inEndByte,
uint64* outRecCnt,
uint16* outRtnCode)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MDRG0100 *input = (Qmy_MDRG0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_DESCRIBE_RANGE;
input->ShrHnd = defnHandle;
input->SpcHnd = (uint64)inSpc;
input->KeyCnt = inKeyCnt;
input->LiteralCnt = inLiteralCnt;
input->BoundsOff = inBoundsOff;
input->LitDefOff = inLitDefOff;
input->LiteralsOff = inLiteralsOff;
input->Cutoff = inCutoff;
input->SpcLen = inSpcLen;
input->EndByte = inEndByte;
input->CnnHnd = cachedConnectionID;
int rc = doItWithLog();
if (likely(rc == 0))
{
Qmy_MDRG0100_output* output = (Qmy_MDRG0100_output*)parmBlock->outParms;
DBUG_ASSERT(outRecCnt && outRtnCode);
*outRecCnt = output->RecCnt;
*outRtnCode = output->RtnCode;
}
return rc;
}
/**
Interface to QMY_RELEASE_ROW API.
See QMY_RELEASE_ROW documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::rrlslck(FILE_HANDLE rfileHandle, char accessIntent)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MRRX0100 *input = (Qmy_MRRX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_RELEASE_ROW;
input->ObjHnd = rfileHandle;
input->CnnHnd = cachedConnectionID;
input->Intent[0] = accessIntent;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_LOCK_OBJECT API.
See QMY_LOCK_OBJECT documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::lockObj(FILE_HANDLE defnHandle,
uint64 lockVal,
char lockAction,
char lockType,
char lockTimeout)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MOLX0100 *input = (Qmy_MOLX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_LOCK_OBJECT;
input->ShrHnd = defnHandle;
input->LckTimeoutVal = lockVal;
input->Action[0] = lockAction;
input->LckTyp[0] = lockType;
input->LckTimeout[0] = lockTimeout;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_DESCRIBE_CONSTRAINTS API.
See QMY_DESCRIBE_CONSTRAINTS documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::constraints(FILE_HANDLE defnHandle,
ILEMemHandle inSpc,
uint32 inSpcLen,
uint32* outLen,
uint32* outCnt)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MDCT0100 *input = (Qmy_MDCT0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_DESCRIBE_CONSTRAINTS;
input->ShrHnd = defnHandle;
input->CstSpcHnd = (uint64)inSpc;
input->CstSpcLen = inSpcLen;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
if (likely(rc == 0))
{
Qmy_MDCT0100_output* output = (Qmy_MDCT0100_output*)parmBlock->outParms;
DBUG_ASSERT(outLen && outCnt);
*outLen = output->NeededLen;
*outCnt = output->CstCnt;
}
return rc;
}
/**
Interface to QMY_REORGANIZE_TABLE API.
See QMY_REORGANIZE_TABLE documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::optimizeTable(FILE_HANDLE defnHandle)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MRGX0100 *input = (Qmy_MRGX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_REORGANIZE_TABLE;
input->ShrHnd = defnHandle;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_PROCESS_COMMITMENT_CONTROL API.
See QMY_PROCESS_COMMITMENT_CONTROL documentation for more information about
parameters and return codes.
*/
int32 db2i_ileBridge::commitmentControl(uint8 function)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
#endif
IleParms* parmBlock = parms();
Qmy_MCCX0100 *input = (Qmy_MCCX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
input->Format = QMY_PROCESS_COMMITMENT_CONTROL;
input->Function[0] = function;
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
/**
Interface to QMY_PROCESS_SAVEPOINT API.
See QMY_PROCESS_SAVEPOINT documentation for more information about parameters and
return codes.
*/
int32 db2i_ileBridge::savepoint(uint8 function,
const char* savepointName)
{
#ifndef DBUG_OFF
DBUG_ASSERT(cachedStateIsCoherent());
DBUG_PRINT("db2i_ileBridge::savepoint",("%d %s", (uint32)function, savepointName));
#endif
IleParms* parmBlock = parms();
Qmy_MSPX0100 *input = (Qmy_MSPX0100*)&(parmBlock->inParms);
memset(input, 0, sizeof(*input));
char* savPtNam = (char*)(input+1);
input->Format = QMY_PROCESS_SAVEPOINT;
if (strlen(savepointName) > MAX_DB2_SAVEPOINTNAME_LENGTH)
{
DBUG_ASSERT(0);
return HA_ERR_GENERIC;
}
strcpy(savPtNam, savepointName);
input->Function[0] = function;
input->SavPtNamOff = savPtNam - (char*)(input);
input->SavPtNamLen = strlen(savepointName);
input->CnnHnd = cachedConnectionID;
int32 rc = doItWithLog();
return rc;
}
static ILEMemHandle traceSpcHandle __attribute__((aligned(16)));
/**
Do initialization for the QMY_* APIs.
@parm aspName The name of the relational database to use for all
connections.
@return 0 if successful; error otherwise
*/
int32 db2i_ileBridge::initILE(const char* aspName,
uint16* traceCtlPtr)
{
// We forego the typical thread-based parms space because MySQL doesn't
// allow us to clean it up before checking for memory leaks. As a result
// we get a complaint about leaked memory on server shutdown.
int32 rc;
char inParms[db2i_ileBridge_MAX_INPARM_SIZE];
char outParms[db2i_ileBridge_MAX_OUTPARM_SIZE];
DBUG_ENTER("db2i_ileBridge::initILE");
if ((rc = registerParmSpace(inParms, outParms)))
{
reportSystemAPIError(rc, NULL);
DBUG_RETURN(rc);
}
registerPtr(traceCtlPtr, &traceSpcHandle);
DBUG_PRINT("db2i_ileBridge::initILE",("(adc) back registerPtr"));
struct ParmBlock
{
Qmy_MINI0100 parms;
} *parmBlock = (ParmBlock*)inParms;
memset(inParms, 0, sizeof(ParmBlock));
parmBlock->parms.Format = QMY_INITIALIZATION;
char paddedName[18];
if (strlen(aspName) > sizeof(paddedName))
{
getErrTxt(DB2I_ERR_BAD_RDB_NAME);
DBUG_RETURN(DB2I_ERR_BAD_RDB_NAME);
}
DBUG_PRINT("db2i_ileBridge::initILE",("(adc) going to convert"));
memset(paddedName, ' ', sizeof(paddedName));
memcpy(paddedName, aspName, strlen(aspName));
convToEbcdic(paddedName, parmBlock->parms.RDBName, strlen(paddedName));
parmBlock->parms.RDBNamLen = strlen(paddedName);
parmBlock->parms.TrcSpcHnd = traceSpcHandle;
DBUG_PRINT("db2i_ileBridge::initILE",("(adc) going to doit"));
rc = doIt();
DBUG_PRINT("db2i_ileBridge::initILE",("(adc) back from doit rc=%d", rc));
if (rc)
{
reportSystemAPIError(rc, (Qmy_Error_output_t*)outParms);
}