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
|
/* Copyright (c) 2003-2005, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#include <ndb_global.h>
#include "SCI_Transporter.hpp"
#include <NdbOut.hpp>
#include <NdbSleep.h>
#include <NdbTick.h>
#include <NdbTick.h>
#include "TransporterInternalDefinitions.hpp"
#include <TransporterCallback.hpp>
#include <InputStream.hpp>
#include <OutputStream.hpp>
#define FLAGS 0
#define DEBUG_TRANSPORTER
SCI_Transporter::SCI_Transporter(TransporterRegistry &t_reg,
const char *lHostName,
const char *rHostName,
int r_port,
bool isMgmConnection,
Uint32 packetSize,
Uint32 bufferSize,
Uint32 nAdapters,
Uint16 remoteSciNodeId0,
Uint16 remoteSciNodeId1,
NodeId _localNodeId,
NodeId _remoteNodeId,
NodeId serverNodeId,
bool chksm,
bool signalId,
Uint32 reportFreq) :
Transporter(t_reg, tt_SCI_TRANSPORTER,
lHostName, rHostName, r_port, isMgmConnection, _localNodeId,
_remoteNodeId, serverNodeId, 0, false, chksm, signalId)
{
DBUG_ENTER("SCI_Transporter::SCI_Transporter");
m_PacketSize = (packetSize + 3)/4 ;
m_BufferSize = bufferSize;
m_sendBuffer.m_buffer = NULL;
m_RemoteSciNodeId = remoteSciNodeId0;
if(remoteSciNodeId0 == 0 || remoteSciNodeId1 == 0)
m_numberOfRemoteNodes=1;
else
m_numberOfRemoteNodes=2;
m_RemoteSciNodeId1 = remoteSciNodeId1;
m_initLocal=false;
m_failCounter=0;
m_remoteNodes[0]=remoteSciNodeId0;
m_remoteNodes[1]=remoteSciNodeId1;
m_adapters = nAdapters;
m_ActiveAdapterId=0;
m_StandbyAdapterId=1;
m_mapped = false;
m_sciinit=false;
sciAdapters= new SciAdapter[nAdapters* (sizeof (SciAdapter))];
if(sciAdapters==NULL) {
}
m_SourceSegm= new sourceSegm[nAdapters* (sizeof (sourceSegm))];
if(m_SourceSegm==NULL) {
}
m_TargetSegm= new targetSegm[nAdapters* (sizeof (targetSegm))];
if(m_TargetSegm==NULL) {
}
m_reportFreq= reportFreq;
//reset all statistic counters.
#ifdef DEBUG_TRANSPORTER
i1024=0;
i2048=0;
i2049=0;
i10242048=0;
i20484096=0;
i4096=0;
i4097=0;
#endif
DBUG_VOID_RETURN;
}
void SCI_Transporter::disconnectImpl()
{
DBUG_ENTER("SCI_Transporter::disconnectImpl");
sci_error_t err;
if(m_mapped){
setDisconnect();
DBUG_PRINT("info", ("connect status = %d, remote node = %d",
(int)getConnectionStatus(), remoteNodeId));
disconnectRemote();
disconnectLocal();
}
// Empty send buffer
m_sendBuffer.m_dataSize = 0;
m_initLocal=false;
m_mapped = false;
if(m_sciinit) {
for(Uint32 i=0; i<m_adapters ; i++) {
SCIClose(sciAdapters[i].scidesc, FLAGS, &err);
if(err != SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_CLOSE_CHANNEL);
DBUG_PRINT("error",
("Cannot close channel to the driver. Error code 0x%x",
err));
}
}
}
m_sciinit=false;
#ifdef DEBUG_TRANSPORTER
ndbout << "total: " << i1024+ i10242048 + i2048+i2049 << endl;
ndbout << "<1024: " << i1024 << endl;
ndbout << "1024-2047: " << i10242048 << endl;
ndbout << "==2048: " << i2048 << endl;
ndbout << "2049-4096: " << i20484096 << endl;
ndbout << "==4096: " << i4096 << endl;
ndbout << ">4096: " << i4097 << endl;
#endif
DBUG_VOID_RETURN;
}
bool SCI_Transporter::initTransporter() {
DBUG_ENTER("SCI_Transporter::initTransporter");
if(m_BufferSize < (2*MAX_MESSAGE_SIZE + 4096)){
m_BufferSize = 2 * MAX_MESSAGE_SIZE + 4096;
}
// Allocate buffers for sending, send buffer size plus 2048 bytes for avoiding
// the need to send twice when a large message comes around. Send buffer size is
// measured in words.
Uint32 sz = 4 * m_PacketSize + MAX_MESSAGE_SIZE;;
m_sendBuffer.m_sendBufferSize = 4 * ((sz + 3) / 4);
m_sendBuffer.m_buffer = new Uint32[m_sendBuffer.m_sendBufferSize / 4];
m_sendBuffer.m_dataSize = 0;
DBUG_PRINT("info",
("Created SCI Send Buffer with buffer size %d and packet size %d",
m_sendBuffer.m_sendBufferSize, m_PacketSize * 4));
if(!getLinkStatus(m_ActiveAdapterId) ||
(m_adapters > 1 &&
!getLinkStatus(m_StandbyAdapterId))) {
DBUG_PRINT("error",
("The link is not fully operational. Check the cables and the switches"));
//NDB should terminate
report_error(TE_SCI_LINK_ERROR);
DBUG_RETURN(false);
}
DBUG_RETURN(true);
} // initTransporter()
Uint32 SCI_Transporter::getLocalNodeId(Uint32 adapterNo)
{
sci_query_adapter_t queryAdapter;
sci_error_t error;
Uint32 _localNodeId;
queryAdapter.subcommand = SCI_Q_ADAPTER_NODEID;
queryAdapter.localAdapterNo = adapterNo;
queryAdapter.data = &_localNodeId;
SCIQuery(SCI_Q_ADAPTER,(void*)(&queryAdapter),(Uint32)NULL,&error);
if(error != SCI_ERR_OK)
return 0;
return _localNodeId;
}
bool SCI_Transporter::getLinkStatus(Uint32 adapterNo)
{
sci_query_adapter_t queryAdapter;
sci_error_t error;
int linkstatus;
queryAdapter.subcommand = SCI_Q_ADAPTER_LINK_OPERATIONAL;
queryAdapter.localAdapterNo = adapterNo;
queryAdapter.data = &linkstatus;
SCIQuery(SCI_Q_ADAPTER,(void*)(&queryAdapter),(Uint32)NULL,&error);
if(error != SCI_ERR_OK) {
DBUG_PRINT("error", ("error %d querying adapter", error));
return false;
}
if(linkstatus<=0)
return false;
return true;
}
sci_error_t SCI_Transporter::initLocalSegment() {
DBUG_ENTER("SCI_Transporter::initLocalSegment");
Uint32 segmentSize = m_BufferSize;
Uint32 offset = 0;
sci_error_t err;
if(!m_sciinit) {
for(Uint32 i=0; i<m_adapters ; i++) {
SCIOpen(&(sciAdapters[i].scidesc), FLAGS, &err);
sciAdapters[i].localSciNodeId=getLocalNodeId(i);
DBUG_PRINT("info", ("SCInode iD %d adapter %d\n",
sciAdapters[i].localSciNodeId, i));
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Cannot open an SCI virtual device. Error code 0x%x",
err));
DBUG_RETURN(err);
}
}
}
m_sciinit=true;
SCICreateSegment(sciAdapters[0].scidesc,
&(m_SourceSegm[0].localHandle),
hostSegmentId(localNodeId, remoteNodeId),
segmentSize,
0,
0,
0,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error", ("Error creating segment, err = 0x%x", err));
DBUG_RETURN(err);
} else {
DBUG_PRINT("info", ("created segment id : %d",
hostSegmentId(localNodeId, remoteNodeId)));
}
/** Prepare the segment*/
for(Uint32 i=0; i < m_adapters; i++) {
SCIPrepareSegment((m_SourceSegm[0].localHandle),
i,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Local Segment is not accessible by an SCI adapter. Error code 0x%x\n",
err));
DBUG_RETURN(err);
}
}
m_SourceSegm[0].mappedMemory =
SCIMapLocalSegment((m_SourceSegm[0].localHandle),
&(m_SourceSegm[0].lhm[0].map),
offset,
segmentSize,
NULL,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error", ("Cannot map area of size %d. Error code 0x%x",
segmentSize,err));
doDisconnect();
DBUG_RETURN(err);
}
/** Make the local segment available*/
for(Uint32 i=0; i < m_adapters; i++) {
SCISetSegmentAvailable((m_SourceSegm[0].localHandle),
i,
FLAGS,
&err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Local Segment is not available for remote connections. Error code 0x%x\n",
err));
DBUG_RETURN(err);
}
}
setupLocalSegment();
DBUG_RETURN(err);
} // initLocalSegment()
bool SCI_Transporter::doSend() {
#ifdef DEBUG_TRANSPORTER
NDB_TICKS startSec=0, stopSec=0;
Uint32 startMicro=0, stopMicro=0, totalMicro=0;
#endif
sci_error_t err;
Uint32 retry=0;
const char * const sendPtr = (char*)m_sendBuffer.m_buffer;
const Uint32 sizeToSend = 4 * m_sendBuffer.m_dataSize; //Convert to number of bytes
if (sizeToSend > 0){
#ifdef DEBUG_TRANSPORTER
if(sizeToSend < 1024 )
i1024++;
if(sizeToSend > 1024 && sizeToSend < 2048 )
i10242048++;
if(sizeToSend==2048)
i2048++;
if(sizeToSend>2048 && sizeToSend < 4096)
i20484096++;
if(sizeToSend==4096)
i4096++;
if(sizeToSend==4097)
i4097++;
#endif
tryagain:
retry++;
if (retry > 3) {
DBUG_PRINT("error", ("SCI Transfer failed"));
report_error(TE_SCI_UNRECOVERABLE_DATA_TFX_ERROR);
return false;
}
Uint32 * insertPtr = (Uint32 *)
(m_TargetSegm[m_ActiveAdapterId].writer)->getWritePtr(sizeToSend);
if(insertPtr != 0) {
const Uint32 remoteOffset=(Uint32)
((char*)insertPtr -
(char*)(m_TargetSegm[m_ActiveAdapterId].mappedMemory));
SCIMemCpy(m_TargetSegm[m_ActiveAdapterId].sequence,
(void*)sendPtr,
m_TargetSegm[m_ActiveAdapterId].rhm[m_ActiveAdapterId].map,
remoteOffset,
sizeToSend,
SCI_FLAG_ERROR_CHECK,
&err);
if (err != SCI_ERR_OK) {
if (err == SCI_ERR_OUT_OF_RANGE ||
err == SCI_ERR_SIZE_ALIGNMENT ||
err == SCI_ERR_OFFSET_ALIGNMENT) {
DBUG_PRINT("error", ("Data transfer error = %d", err));
report_error(TE_SCI_UNRECOVERABLE_DATA_TFX_ERROR);
return false;
}
if(err == SCI_ERR_TRANSFER_FAILED) {
if(getLinkStatus(m_ActiveAdapterId))
goto tryagain;
if (m_adapters == 1) {
DBUG_PRINT("error", ("SCI Transfer failed"));
report_error(TE_SCI_UNRECOVERABLE_DATA_TFX_ERROR);
return false;
}
m_failCounter++;
Uint32 temp=m_ActiveAdapterId;
if (getLinkStatus(m_StandbyAdapterId)) {
failoverShmWriter();
SCIStoreBarrier(m_TargetSegm[m_StandbyAdapterId].sequence,0);
m_ActiveAdapterId=m_StandbyAdapterId;
m_StandbyAdapterId=temp;
DBUG_PRINT("error", ("Swapping from adapter %u to %u",
m_StandbyAdapterId, m_ActiveAdapterId));
} else {
report_error(TE_SCI_UNRECOVERABLE_DATA_TFX_ERROR);
DBUG_PRINT("error", ("SCI Transfer failed"));
}
}
} else {
SHM_Writer * writer = (m_TargetSegm[m_ActiveAdapterId].writer);
writer->updateWritePtr(sizeToSend);
Uint32 sendLimit = writer->getBufferSize();
sendLimit -= writer->getWriteIndex();
m_sendBuffer.m_dataSize = 0;
m_sendBuffer.m_forceSendLimit = sendLimit;
}
} else {
/**
* If we end up here, the SCI segment is full.
*/
DBUG_PRINT("error", ("the segment is full for some reason"));
return false;
} //if
}
return true;
} // doSend()
void SCI_Transporter::failoverShmWriter() {
#if 0
(m_TargetSegm[m_StandbyAdapterId].writer)
->copyIndexes((m_TargetSegm[m_StandbyAdapterId].writer));
#endif
} //failoverShm
void SCI_Transporter::setupLocalSegment()
{
DBUG_ENTER("SCI_Transporter::setupLocalSegment");
Uint32 sharedSize = 0;
sharedSize =4096; //start of the buffer is page aligend
Uint32 sizeOfBuffer = m_BufferSize;
sizeOfBuffer -= sharedSize;
Uint32 * localReadIndex =
(Uint32*)m_SourceSegm[m_ActiveAdapterId].mappedMemory;
Uint32 * localWriteIndex = (Uint32*)(localReadIndex+ 1);
m_localStatusFlag = (Uint32*)(localReadIndex + 3);
char * localStartOfBuf = (char*)
((char*)m_SourceSegm[m_ActiveAdapterId].mappedMemory+sharedSize);
* localReadIndex = 0;
* localWriteIndex = 0;
const Uint32 slack = MAX_MESSAGE_SIZE;
reader = new SHM_Reader(localStartOfBuf,
sizeOfBuffer,
slack,
localReadIndex,
localWriteIndex);
reader->clear();
DBUG_VOID_RETURN;
} //setupLocalSegment
void SCI_Transporter::setupRemoteSegment()
{
DBUG_ENTER("SCI_Transporter::setupRemoteSegment");
Uint32 sharedSize = 0;
sharedSize =4096; //start of the buffer is page aligned
Uint32 sizeOfBuffer = m_BufferSize;
const Uint32 slack = MAX_MESSAGE_SIZE;
sizeOfBuffer -= sharedSize;
Uint32 *segPtr = (Uint32*) m_TargetSegm[m_ActiveAdapterId].mappedMemory ;
Uint32 * remoteReadIndex = (Uint32*)segPtr;
Uint32 * remoteWriteIndex = (Uint32*)(segPtr + 1);
m_remoteStatusFlag = (Uint32*)(segPtr + 3);
char * remoteStartOfBuf = ( char*)((char*)segPtr+(sharedSize));
writer = new SHM_Writer(remoteStartOfBuf,
sizeOfBuffer,
slack,
remoteReadIndex,
remoteWriteIndex);
writer->clear();
m_TargetSegm[0].writer=writer;
m_sendBuffer.m_forceSendLimit = writer->getBufferSize();
if(createSequence(m_ActiveAdapterId)!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_CREATE_SEQUENCE);
DBUG_PRINT("error", ("Unable to create sequence on active"));
doDisconnect();
}
if (m_adapters > 1) {
segPtr = (Uint32*) m_TargetSegm[m_StandbyAdapterId].mappedMemory ;
Uint32 * remoteReadIndex2 = (Uint32*)segPtr;
Uint32 * remoteWriteIndex2 = (Uint32*) (segPtr + 1);
m_remoteStatusFlag2 = (Uint32*)(segPtr + 3);
char * remoteStartOfBuf2 = ( char*)((char *)segPtr+sharedSize);
/**
* setup a writer. writer2 is used to mirror the changes of
* writer on the standby
* segment, so that in the case of a failover, we can switch
* to the stdby seg. quickly.*
*/
writer2 = new SHM_Writer(remoteStartOfBuf2,
sizeOfBuffer,
slack,
remoteReadIndex2,
remoteWriteIndex2);
* remoteReadIndex = 0;
* remoteWriteIndex = 0;
writer2->clear();
m_TargetSegm[1].writer=writer2;
if(createSequence(m_StandbyAdapterId)!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_CREATE_SEQUENCE);
DBUG_PRINT("error", ("Unable to create sequence on standby"));
doDisconnect();
}
}
DBUG_VOID_RETURN;
} //setupRemoteSegment
bool
SCI_Transporter::init_local()
{
DBUG_ENTER("SCI_Transporter::init_local");
if(!m_initLocal) {
if(initLocalSegment()!=SCI_ERR_OK){
NdbSleep_MilliSleep(10);
//NDB SHOULD TERMINATE AND COMPUTER REBOOTED!
report_error(TE_SCI_CANNOT_INIT_LOCALSEGMENT);
DBUG_RETURN(false);
}
m_initLocal=true;
}
DBUG_RETURN(true);
}
bool
SCI_Transporter::init_remote()
{
DBUG_ENTER("SCI_Transporter::init_remote");
sci_error_t err;
Uint32 offset = 0;
if(!m_mapped ) {
DBUG_PRINT("info", ("Map remote segments"));
for(Uint32 i=0; i < m_adapters ; i++) {
m_TargetSegm[i].rhm[i].remoteHandle=0;
SCIConnectSegment(sciAdapters[i].scidesc,
&(m_TargetSegm[i].rhm[i].remoteHandle),
m_remoteNodes[i],
remoteSegmentId(localNodeId, remoteNodeId),
i,
0,
0,
0,
0,
&err);
if(err != SCI_ERR_OK) {
NdbSleep_MilliSleep(10);
DBUG_PRINT("error", ("Error connecting segment, err 0x%x", err));
DBUG_RETURN(false);
}
}
// Map the remote memory segment into program space
for(Uint32 i=0; i < m_adapters ; i++) {
m_TargetSegm[i].mappedMemory =
SCIMapRemoteSegment((m_TargetSegm[i].rhm[i].remoteHandle),
&(m_TargetSegm[i].rhm[i].map),
offset,
m_BufferSize,
NULL,
FLAGS,
&err);
if(err!= SCI_ERR_OK) {
DBUG_PRINT("error",
("Cannot map a segment to the remote node %d. Error code 0x%x",
m_RemoteSciNodeId, err));
//NDB SHOULD TERMINATE AND COMPUTER REBOOTED!
report_error(TE_SCI_CANNOT_MAP_REMOTESEGMENT);
DBUG_RETURN(false);
}
}
m_mapped=true;
setupRemoteSegment();
setConnected();
DBUG_PRINT("info", ("connected and mapped to segment, remoteNode: %d",
remoteNodeId));
DBUG_PRINT("info", ("remoteSegId: %d",
remoteSegmentId(localNodeId, remoteNodeId)));
DBUG_RETURN(true);
} else {
DBUG_RETURN(getConnectionStatus());
}
}
bool
SCI_Transporter::connect_client_impl(NDB_SOCKET_TYPE sockfd)
{
SocketInputStream s_input(sockfd);
SocketOutputStream s_output(sockfd);
char buf[256];
DBUG_ENTER("SCI_Transporter::connect_client_impl");
// Wait for server to create and attach
if (s_input.gets(buf, 256) == 0) {
DBUG_PRINT("error", ("No initial response from server in SCI"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
if (!init_local()) {
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Send ok to server
s_output.println("sci client 1 ok");
if (!init_remote()) {
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Wait for ok from server
if (s_input.gets(buf, 256) == 0) {
DBUG_PRINT("error", ("No second response from server in SCI"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Send ok to server
s_output.println("sci client 2 ok");
NDB_CLOSE_SOCKET(sockfd);
DBUG_PRINT("info", ("Successfully connected client to node %d",
remoteNodeId));
DBUG_RETURN(true);
}
bool
SCI_Transporter::connect_server_impl(NDB_SOCKET_TYPE sockfd)
{
SocketOutputStream s_output(sockfd);
SocketInputStream s_input(sockfd);
char buf[256];
DBUG_ENTER("SCI_Transporter::connect_server_impl");
if (!init_local()) {
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Send ok to client
s_output.println("sci server 1 ok");
// Wait for ok from client
if (s_input.gets(buf, 256) == 0) {
DBUG_PRINT("error", ("No response from client in SCI"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
if (!init_remote()) {
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
// Send ok to client
s_output.println("sci server 2 ok");
// Wait for ok from client
if (s_input.gets(buf, 256) == 0) {
DBUG_PRINT("error", ("No second response from client in SCI"));
NDB_CLOSE_SOCKET(sockfd);
DBUG_RETURN(false);
}
NDB_CLOSE_SOCKET(sockfd);
DBUG_PRINT("info", ("Successfully connected server to node %d",
remoteNodeId));
DBUG_RETURN(true);
}
sci_error_t SCI_Transporter::createSequence(Uint32 adapterid) {
sci_error_t err;
SCICreateMapSequence((m_TargetSegm[adapterid].rhm[adapterid].map),
&(m_TargetSegm[adapterid].sequence),
SCI_FLAG_FAST_BARRIER,
&err);
return err;
} // createSequence()
bool SCI_Transporter::disconnectLocal()
{
DBUG_ENTER("SCI_Transporter::disconnectLocal");
sci_error_t err;
m_ActiveAdapterId=0;
/** Free resources used by a local segment
*/
SCIUnmapSegment(m_SourceSegm[0].lhm[0].map,0,&err);
if(err!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_UNMAP_SEGMENT);
DBUG_PRINT("error", ("Unable to unmap segment"));
DBUG_RETURN(false);
}
SCIRemoveSegment((m_SourceSegm[m_ActiveAdapterId].localHandle),
FLAGS,
&err);
if(err!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_REMOVE_SEGMENT);
DBUG_PRINT("error", ("Unable to remove segment"));
DBUG_RETURN(false);
}
DBUG_PRINT("info", ("Local memory segment is unmapped and removed"));
DBUG_RETURN(true);
} // disconnectLocal()
bool SCI_Transporter::disconnectRemote() {
DBUG_ENTER("SCI_Transporter::disconnectRemote");
sci_error_t err;
for(Uint32 i=0; i<m_adapters; i++) {
/**
* Segment unmapped, disconnect from the remotely connected segment
*/
SCIUnmapSegment(m_TargetSegm[i].rhm[i].map,0,&err);
if(err!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_UNMAP_SEGMENT);
DBUG_PRINT("error", ("Unable to unmap segment"));
DBUG_RETURN(false);
}
SCIDisconnectSegment(m_TargetSegm[i].rhm[i].remoteHandle,
FLAGS,
&err);
if(err!=SCI_ERR_OK) {
report_error(TE_SCI_UNABLE_TO_DISCONNECT_SEGMENT);
DBUG_PRINT("error", ("Unable to disconnect segment"));
DBUG_RETURN(false);
}
DBUG_PRINT("info", ("Remote memory segment is unmapped and disconnected"));
}
DBUG_RETURN(true);
} // disconnectRemote()
SCI_Transporter::~SCI_Transporter() {
DBUG_ENTER("SCI_Transporter::~SCI_Transporter");
// Close channel to the driver
doDisconnect();
if(m_sendBuffer.m_buffer != NULL)
delete[] m_sendBuffer.m_buffer;
DBUG_VOID_RETURN;
} // ~SCI_Transporter()
void SCI_Transporter::closeSCI() {
// Termination of SCI
sci_error_t err;
DBUG_ENTER("SCI_Transporter::closeSCI");
// Disconnect and remove remote segment
disconnectRemote();
// Unmap and remove local segment
disconnectLocal();
// Closes an SCI virtual device
SCIClose(activeSCIDescriptor, FLAGS, &err);
if(err != SCI_ERR_OK) {
DBUG_PRINT("error",
("Cannot close SCI channel to the driver. Error code 0x%x",
err));
}
SCITerminate();
DBUG_VOID_RETURN;
} // closeSCI()
Uint32 *
SCI_Transporter::getWritePtr(Uint32 lenBytes, Uint32 prio)
{
Uint32 sci_buffer_remaining = m_sendBuffer.m_forceSendLimit;
Uint32 send_buf_size = m_sendBuffer.m_sendBufferSize;
Uint32 curr_data_size = m_sendBuffer.m_dataSize << 2;
Uint32 new_curr_data_size = curr_data_size + lenBytes;
if ((curr_data_size >= send_buf_size) ||
(curr_data_size >= sci_buffer_remaining)) {
/**
* The new message will not fit in the send buffer. We need to
* send the send buffer before filling it up with the new
* signal data. If current data size will spill over buffer edge
* we will also send to ensure correct operation.
*/
if (!doSend()) {
/**
* We were not successfull sending, report 0 as meaning buffer full and
* upper levels handle retries and other recovery matters.
*/
return 0;
}
}
/**
* New signal fits, simply fill it up with more data.
*/
Uint32 sz = m_sendBuffer.m_dataSize;
return &m_sendBuffer.m_buffer[sz];
}
void
SCI_Transporter::updateWritePtr(Uint32 lenBytes, Uint32 prio){
Uint32 sz = m_sendBuffer.m_dataSize;
Uint32 packet_size = m_PacketSize;
sz += ((lenBytes + 3) >> 2);
m_sendBuffer.m_dataSize = sz;
if(sz > packet_size) {
/**-------------------------------------------------
* Buffer is full and we are ready to send. We will
* not wait since the signal is already in the buffer.
* Force flag set has the same indication that we
* should always send. If it is not possible to send
* we will not worry since we will soon be back for
* a renewed trial.
*-------------------------------------------------
*/
doSend();
}
}
enum SciStatus {
SCIDISCONNECT = 1,
SCICONNECTED = 2
};
bool
SCI_Transporter::getConnectionStatus() {
if(*m_localStatusFlag == SCICONNECTED &&
(*m_remoteStatusFlag == SCICONNECTED ||
((m_adapters > 1) &&
*m_remoteStatusFlag2 == SCICONNECTED)))
return true;
else
return false;
}
void
SCI_Transporter::setConnected() {
*m_remoteStatusFlag = SCICONNECTED;
if (m_adapters > 1) {
*m_remoteStatusFlag2 = SCICONNECTED;
}
*m_localStatusFlag = SCICONNECTED;
}
void
SCI_Transporter::setDisconnect() {
if(getLinkStatus(m_ActiveAdapterId))
*m_remoteStatusFlag = SCIDISCONNECT;
if (m_adapters > 1) {
if(getLinkStatus(m_StandbyAdapterId))
*m_remoteStatusFlag2 = SCIDISCONNECT;
}
}
bool
SCI_Transporter::checkConnected() {
if (*m_localStatusFlag == SCIDISCONNECT) {
return false;
}
else
return true;
}
static bool init = false;
bool
SCI_Transporter::initSCI() {
DBUG_ENTER("SCI_Transporter::initSCI");
if(!init){
sci_error_t error;
// Initialize SISCI library
SCIInitialize(0, &error);
if(error != SCI_ERR_OK) {
DBUG_PRINT("error", ("Cannot initialize SISCI library."));
DBUG_PRINT("error",
("Inconsistency between SISCI library and SISCI driver. Error code 0x%x",
error));
DBUG_RETURN(false);
}
init = true;
}
DBUG_RETURN(true);
}
Uint32
SCI_Transporter::get_free_buffer() const
{
return (m_TargetSegm[m_ActiveAdapterId].writer)->get_free_buffer();
}
|