Skip to main content
aboutsummaryrefslogtreecommitdiffstats
blob: 6bfc207a0838ab113df4673c88978fd7211d3723 (plain) (blame)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
/*******************************************************************************
 * Copyright (c) 2007 Wind River Systems, Inc. and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0 
 * which accompanies this distribution, and is available at 
 * http://www.eclipse.org/legal/epl-v10.html 
 *  
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *******************************************************************************/
package com.windriver.tcf.dsf.core.services;

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.dd.dsf.concurrent.DataRequestMonitor;
import org.eclipse.dd.dsf.concurrent.RequestMonitor;
import org.eclipse.dd.dsf.datamodel.AbstractDMEvent;
import org.eclipse.dd.dsf.datamodel.IDMContext;
import org.eclipse.dd.dsf.datamodel.ServiceDMContext;
import org.eclipse.dd.dsf.debug.model.DsfMemoryBlockRetrieval;
import org.eclipse.dd.dsf.service.AbstractDsfService;
import org.eclipse.dd.dsf.service.DsfSession;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IMemoryBlockRetrieval;
import org.eclipse.debug.core.model.IMemoryBlockRetrievalExtension;
import org.osgi.framework.BundleContext;

import com.windriver.debug.tcf.core.model.ITCFConstants;
import com.windriver.tcf.dsf.core.Activator;
import com.windriver.tcf.api.protocol.IChannel;
import com.windriver.tcf.api.protocol.IToken;
import com.windriver.tcf.api.services.IRunControl;
import com.windriver.tcf.api.services.IRunControl.RunControlContext;

public class TCFDSFRunControl extends AbstractDsfService implements org.eclipse.dd.dsf.debug.service.IRunControl {

    public static class SuspendedEvent extends AbstractDMEvent<IExecutionDMContext> implements ISuspendedDMEvent {

        private final StateChangeReason reason;

        public SuspendedEvent(IExecutionDMContext dmc, String reason) {
            super(dmc);
            this.reason = toStateChangeReason(reason);
        }

        public StateChangeReason getReason() {
            return reason;
        }
    }

    public static class ResumedEvent extends AbstractDMEvent<IExecutionDMContext> implements IResumedDMEvent {

        public ResumedEvent(IExecutionDMContext dmc) {
            super(dmc);
        }

        public StateChangeReason getReason() {
            return StateChangeReason.USER_REQUEST;
        }
    }

    public class ContainerSuspendedEvent extends AbstractDMEvent<IExecutionDMContext> implements IContainerSuspendedDMEvent {

        private final String trigger_id;
        private final StateChangeReason reason;

        public ContainerSuspendedEvent(IExecutionDMContext dmc, String trigger_id, String reason) {
            super(dmc);
            this.trigger_id = trigger_id;
            this.reason = toStateChangeReason(reason);
        }

        public IExecutionDMContext getTriggeringContext() {
            return cache.get(trigger_id);
        }

        public StateChangeReason getReason() {
            return reason;
        }
    }

    public static class ContainerResumedEvent extends AbstractDMEvent<IExecutionDMContext> implements IContainerResumedDMEvent {

        public ContainerResumedEvent(IExecutionDMContext dmc) {
            super(dmc);
        }

        public StateChangeReason getReason() {
            return StateChangeReason.USER_REQUEST;
        }
    }

    public static class StartedEvent extends AbstractDMEvent<IContainerDMContext> implements IStartedDMEvent {

        private final IExecutionDMContext exe;

        public StartedEvent(IContainerDMContext dmc, IExecutionDMContext exe) {
            super(dmc);
            this.exe = exe;
        }

        public IExecutionDMContext getExecutionContext() {
            return exe;
        }
    }

    public static class ChangedEvent extends AbstractDMEvent<IExecutionDMContext> {

        public ChangedEvent(IExecutionDMContext dmc) {
            super(dmc);
        }
    }

    public static class ExitedEvent extends AbstractDMEvent<IContainerDMContext> implements IExitedDMEvent {

        private final IExecutionDMContext exe;

        public ExitedEvent(IContainerDMContext dmc, IExecutionDMContext exe) {
            super(dmc);
            this.exe = exe;
        }

        public IExecutionDMContext getExecutionContext() {
            return exe;
        }
    }

    private final com.windriver.tcf.api.services.IRunControl.RunControlListener run_listener =
        new com.windriver.tcf.api.services.IRunControl.RunControlListener() {

        public void containerResumed(String[] context_ids) {
            for (String id : context_ids) {
                ExecutionDMC n = cache.get(id);
                if (n != null) n.onContextResumed();
            }
            for (String id : context_ids) {
                ExecutionDMC n = cache.get(id);
                if (n != null && n.context.isValid()) {
                    RunControlContext c = n.context.getData();
                    if (c.isContainer()) {
                        getSession().dispatchEvent(new ContainerResumedEvent(n), getProperties());
                    }
                }
            }
        }

        public void containerSuspended(String trigger_id, String pc,
                String reason, Map<String, Object> params,
                String[] suspended_ids) {
            if (trigger_id != null) {
                ExecutionDMC n = cache.get(trigger_id);
                if (n != null) n.onContextSuspended(pc, reason, params);
            }
            for (String id : suspended_ids) {
                if (id.equals(trigger_id)) continue;
                ExecutionDMC n = cache.get(id);
                if (n != null) n.onContainerSuspended(reason);
            }
            for (String id : suspended_ids) {
                ExecutionDMC n = cache.get(id);
                if (n != null && n.context.isValid()) {
                    RunControlContext c = n.context.getData();
                    if (c.isContainer()) {
                        getSession().dispatchEvent(new ContainerSuspendedEvent(n, trigger_id, reason), getProperties());
                    }
                }
            }
        }

        public void contextAdded(RunControlContext[] contexts) {
            for (RunControlContext ctx : contexts) {
                ExecutionDMC n = cache.get(ctx.getParentID());
                if (n != null) n.onContextAdded(ctx);
            }
        }

        public void contextChanged(RunControlContext[] contexts) {
            for (RunControlContext ctx : contexts) {
                ExecutionDMC n = cache.get(ctx.getID());
                if (n != null) n.onContextChanged(ctx);
            }
        }

        public void contextException(String id, String msg) {
            ExecutionDMC n = cache.get(id);
            if (n != null) n.onContextException(msg);
        }

        public void contextRemoved(String[] context_ids) {
            for (String id : context_ids) {
                ExecutionDMC n = cache.get(id);
                if (n != null) n.onContextRemoved();
            }
        }

        public void contextResumed(String id) {
            ExecutionDMC n = cache.get(id);
            if (n != null) n.onContextResumed();
        }

        public void contextSuspended(String id, String pc, String reason, Map<String, Object> params) {
            ExecutionDMC n = cache.get(id);
            if (n != null) n.onContextSuspended(pc, reason, params);
        }
    };
    
    private static class ExecutionState {
        boolean is_suspended;
        boolean is_running;
        String suspend_pc;
        String suspend_reason;
        Map<String,Object> suspend_params;
    }

    private class ExecutionDMC extends TCFDSFExecutionDMC {

        final String id;
        final ExecutionDMC parent;
        final IMemoryBlockRetrievalExtension mem_retrieval;

        boolean disposed;
        int is_stepping;
        int is_resuming;
        
        final TCFDataCache<RunControlContext> context; 
        final TCFDataCache<Map<String,ExecutionDMC>> children; 
        final TCFDataCache<ExecutionState> state; 

        public ExecutionDMC(ExecutionDMC parent, final String id) {
            super(TCFDSFRunControl.this, parent == null ?
                    new IDMContext[0] : new IDMContext[] { parent });
            this.parent = parent;
            this.id = id;
            DsfMemoryBlockRetrieval mr = null;
            try {
                mr = new DsfMemoryBlockRetrieval(ITCFConstants.ID_TCF_DEBUG_MODEL, this);
            }
            catch (DebugException e) {
                e.printStackTrace();
            };
            mem_retrieval = mr;
            context = new TCFDataCache<RunControlContext>(channel) {
                @Override
                public boolean startDataRetrieval() {
                    assert command == null;
                    if (id == null || tcf_run_service == null) {
                        data = null;
                        valid = true;
                        return true;
                    }
                    command = tcf_run_service.getContext(id, new IRunControl.DoneGetContext() {
                        public void doneGetContext(IToken token, Exception err, IRunControl.RunControlContext ctx) {
                            if (command != token) return;
                            command = null;
                            if (err != null) {
                                error = err;
                            }
                            else {
                                data = ctx;
                            }
                            valid = true;
                            validate();
                        }
                    });
                    return false;
                }
            };
            children = new TCFDataCache<Map<String,ExecutionDMC>>(channel) {
                @Override
                public boolean startDataRetrieval() {
                    assert command == null;
                    if (tcf_run_service == null) {
                        data = null;
                        valid = true;
                        return true;
                    }
                    command = tcf_run_service.getChildren(id, new IRunControl.DoneGetChildren() {
                        public void doneGetChildren(IToken token, Exception err, String[] contexts) {
                            if (command != token) return;
                            command = null;
                            if (err != null) {
                                data = null;
                                error = err;
                            }
                            else {
                                if (data == null) data = new HashMap<String,ExecutionDMC>();
                                data.clear();
                                for (int i = 0; i < contexts.length; i++) {
                                    String id = contexts[i];
                                    ExecutionDMC n = cache.get(id);
                                    if (n == null) {
                                        n = new ExecutionDMC(ExecutionDMC.this, id);
                                        cache.put(n.id, n);
                                    }
                                    data.put(id, n);
                                }
                            }
                            valid = true;
                            validate();
                        }
                    });
                    return false;
                }
            };
            state = new TCFDataCache<ExecutionState>(channel) {
                @Override
                public boolean startDataRetrieval() {
                    assert command == null;
                    assert context.isValid();
                    RunControlContext c = context.getData();
                    if (c == null || !c.hasState()) {
                        data = null;
                        valid = true;
                        return true;
                    }
                    command = c.getState(new IRunControl.DoneGetState() {
                        public void doneGetState(IToken token, Exception err, boolean suspend, String pc, String reason, Map<String,Object> params) {
                            if (token != command) return;
                            command = null;
                            if (err != null) {
                                data = null;
                                error = err;
                            }
                            else {
                                data = new ExecutionState();
                                data.is_running = !suspend;
                                data.is_suspended = suspend;
                                if (suspend) {
                                    data.suspend_pc = pc;
                                    data.suspend_reason = reason;
                                    data.suspend_params = params;
                                }
                            }
                            valid = true;
                            validate();
                        }
                    });
                    return false;
                }
            };
        }

        @Override
        public String toString() {
            return baseToString() + ".context[" + id + "]"; //$NON-NLS-1$ //$NON-NLS-2$
        }

        @Override
        public boolean equals(Object obj) {
            if (!super.baseEquals(obj)) return false;
            String obj_id = ((ExecutionDMC)obj).id;
            if (obj_id == null) return id == null;
            return obj_id.equals(id);
        }

        @Override
        public int hashCode() {
            if (id == null) return 0;
            return id.hashCode();
        }

        @Override
        @SuppressWarnings("unchecked")
        public Object getAdapter(Class cls) {
            Object obj = null;
            if (cls == IMemoryBlockRetrieval.class) obj = mem_retrieval;
            if (cls == IMemoryBlockRetrievalExtension.class) obj = mem_retrieval;
            if (obj == null) obj = super.getAdapter(cls);
            return obj;
        }

        @Override
        public String getTcfContextId() {
            return id;
        }

        @Override
        public void addStateWaitingRequest(IDataRequest req) {
            state.addWaitingRequest(req);
        }

        @Override
        public TCFAddress getPC() {
            ExecutionState st = state.getData();
            if (st == null) return null;
            if (st.suspend_pc == null) return null;
            return new TCFAddress(new BigInteger(st.suspend_pc));
        }

        @Override
        public boolean validateState() {
            return state.validate();
        }

        @Override
        public boolean isDisposed() {
            return disposed;
        }
        
        void dispose() {
            assert !disposed;
            context.cancel();
            children.cancel();
            state.cancel();
            if (children.isValid()) {
                Map<String,ExecutionDMC> m = children.getData();
                if (m != null) {
                    for (ExecutionDMC n : m.values()) n.dispose();
                }
            }
            cache.remove(id);
            disposed = true;
        }
        
        /*--------------------------------------------------------------------------------------*/
        /* Events                                                                               */

        void onContextAdded(IRunControl.RunControlContext c) {
            String id = c.getID();
            assert !disposed;
            assert cache.get(id) == null;
            ExecutionDMC n = new ExecutionDMC(this, id);
            n.context.reset(c);
            if (children.isValid()) {
                Map<String,ExecutionDMC> m = children.getData();
                if (m != null) m.put(id, n);
            }
            cache.put(id, n);
            getSession().dispatchEvent(new StartedEvent(this, n), getProperties());
        }

        void onContextChanged(IRunControl.RunControlContext c) {
            assert !disposed;
            context.reset(c);
            getSession().dispatchEvent(new ChangedEvent(this), getProperties());
        }

        void onContextRemoved() {
            assert !disposed;
            if (parent != null && parent.children.isValid()) {
                Map<String,ExecutionDMC> m = parent.children.getData();
                if (m != null) m.remove(id);
            }
            dispose();
            getSession().dispatchEvent(new ExitedEvent(parent, this), getProperties());
        }

        void onContainerSuspended(String reason) {
            assert !disposed;
            if (!context.isValid()) return;
            RunControlContext rc = context.getData();
            if (rc == null) return;
            if (!rc.hasState()) return;
            state.reset();
            getSession().dispatchEvent(new SuspendedEvent(this, reason), getProperties());
        }

        void onContextSuspended(String pc, String reason, Map<String,Object> params) {
            assert !disposed;
            assert !context.isValid() || context.getData().hasState();
            ExecutionState st = new ExecutionState();
            st.is_suspended = true;
            st.suspend_pc = pc;
            st.suspend_reason = reason;
            st.suspend_params = params;
            state.reset(st);
            getSession().dispatchEvent(new SuspendedEvent(this, reason), getProperties());
        }

        void onContextResumed() {
            assert !disposed;
            assert !context.isValid() || context.getData().hasState();
            ExecutionState st = new ExecutionState();
            st.is_running = true;
            state.reset(st);
            getSession().dispatchEvent(new ResumedEvent(this), getProperties());
        }

        void onContextException(String msg) {
            assert !disposed;
            // TODO onContextException handling
        }
    }

    private static class ExecutionData implements IExecutionDMData {

        private final StateChangeReason reason;

        ExecutionData(StateChangeReason reason) {
            this.reason = reason;
        }

        public boolean isValid() {
            return true;
        }

        public StateChangeReason getStateChangeReason() { 
            return reason;
        }
    }

    private static StateChangeReason toStateChangeReason(String s) {
        if (s == null) return StateChangeReason.UNKNOWN;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_USER_REQUEST)) return StateChangeReason.USER_REQUEST;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_STEP)) return StateChangeReason.STEP;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_BREAKPOINT)) return StateChangeReason.BREAKPOINT;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_EXCEPTION)) return StateChangeReason.EXCEPTION;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_CONTAINER)) return StateChangeReason.CONTAINER;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_WATCHPOINT)) return StateChangeReason.WATCHPOINT;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_SIGNAL)) return StateChangeReason.SIGNAL;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_SHAREDLIB)) return StateChangeReason.SHAREDLIB;
        if (s.equals(com.windriver.tcf.api.services.IRunControl.REASON_ERROR)) return StateChangeReason.ERROR;
        return StateChangeReason.UNKNOWN;
    }

    private final IChannel channel;
    private final com.windriver.tcf.api.services.IRunControl tcf_run_service;
    private final Map<String,ExecutionDMC> cache = new HashMap<String,ExecutionDMC>();
    private final ExecutionDMC root_dmc;
    private IDMContext service_dmc;

    public TCFDSFRunControl(DsfSession session, IChannel channel, final RequestMonitor monitor) {
        super(session);
        this.channel = channel;
        tcf_run_service = channel.getRemoteService(com.windriver.tcf.api.services.IRunControl.class);
        if (tcf_run_service != null) tcf_run_service.addListener(run_listener);
        service_dmc = new ServiceDMContext(this, "#run_control");
        root_dmc = new ExecutionDMC(null, null);
        cache.put(null, root_dmc);
        initialize(new RequestMonitor(getExecutor(), monitor) { 
            @Override
            protected void handleOK() {
                String[] class_names = {
                        org.eclipse.dd.dsf.debug.service.IRunControl.class.getName(),
                        TCFDSFRunControl.class.getName()
                };
                register(class_names, new Hashtable<String,String>());
                monitor.done();
            }
        });
    }

    @Override 
    public void shutdown(RequestMonitor monitor) {
        if (tcf_run_service != null) tcf_run_service.removeListener(run_listener);
        unregister();
        super.shutdown(monitor);
    }

    @Override
    protected BundleContext getBundleContext() {
        return Activator.getBundleContext();
    }

    @SuppressWarnings("unchecked")
    public void getModelData(IDMContext dmc, final DataRequestMonitor<?> rm) {
        if (dmc instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)dmc;
            if (!ctx.context.validate()) {
                ctx.context.addWaitingRequest(new IDataRequest() {
                    public void cancel() {
                        rm.setStatus(new Status(IStatus.CANCEL, Activator.PLUGIN_ID,
                                REQUEST_FAILED, "Canceled", null)); //$NON-NLS-1$
                        rm.setCanceled(true);
                        rm.done();
                    }
                    public void done() {
                        getModelData(ctx, rm);
                    }
                });
                return;
            }
            if (ctx.context.getError() != null) {
                rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                        REQUEST_FAILED, "Data error", ctx.context.getError())); //$NON-NLS-1$
                rm.done();
                return;
            }
            if (ctx.context.getData() == null) {
                ExecutionData dt = new ExecutionData(StateChangeReason.UNKNOWN);
                ((DataRequestMonitor<IExecutionDMData>)rm).setData(dt);
                rm.done();
                return;
            }
            if (!ctx.context.getData().hasState()) {
                ExecutionData dt = new ExecutionData(StateChangeReason.UNKNOWN);
                ((DataRequestMonitor<IExecutionDMData>)rm).setData(dt);
                rm.done();
                return;
            }
            if (!ctx.state.validate()) {
                ctx.state.addWaitingRequest(new IDataRequest() {
                    public void cancel() {
                        rm.setStatus(new Status(IStatus.CANCEL, Activator.PLUGIN_ID,
                                REQUEST_FAILED, "Canceled", null)); //$NON-NLS-1$
                        rm.setCanceled(true);
                        rm.done();
                    }
                    public void done() {
                        getModelData(ctx, rm);
                    }
                });
                return;
            }
            if (ctx.state.getError() != null) {
                rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                        REQUEST_FAILED, "Data error", ctx.state.getError())); //$NON-NLS-1$
                rm.done();
                return;
            }
            if (ctx.state.getData() == null) {
                ExecutionData dt = new ExecutionData(StateChangeReason.UNKNOWN);
                ((DataRequestMonitor<IExecutionDMData>)rm).setData(dt);
                rm.done();
                return;
            }
            ExecutionData dt = new ExecutionData(toStateChangeReason(ctx.state.getData().suspend_reason));
            ((DataRequestMonitor<IExecutionDMData>)rm).setData(dt);
            rm.done();
        }
        else if (dmc == service_dmc) {
            ((DataRequestMonitor<TCFDSFRunControl>)rm).setData(this);
            rm.done();
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }

    public IDMContext getServiceContext() {
        return service_dmc;
    }

    public boolean isValid() {
        return true;
    }

    public boolean canInstructionStep(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                return c != null && c.canResume(com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO);
            }
        }
        return false;
    }

    public boolean canResume(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                return c != null && c.canResume(com.windriver.tcf.api.services.IRunControl.RM_RESUME);
            }
        }
        return false;
    }

    public boolean canStep(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null) {
                    if (c.canResume(com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO_LINE)) return true;
                    if (c.canResume(com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO)) return true;
                }
            }
        }
        return false;
    }

    public boolean canSuspend(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                return c != null && c.canSuspend();
            }
        }
        return false;
    }

    public TCFDSFExecutionDMC getContext(String id) {
        return cache.get(id);
    }

    public void getContainerContexts(IContainerDMContext context, final DataRequestMonitor<IExecutionDMContext[]> rm) {
        getContexts(context, rm, false);
    }

    public void getExecutionContexts(IContainerDMContext context, final DataRequestMonitor<IExecutionDMContext[]> rm) {
        getContexts(context, rm, true);
    }

    public void getContexts(IContainerDMContext context,
            final DataRequestMonitor<IExecutionDMContext[]> rm, final boolean has_state) {
        if (context == null) context = root_dmc;
        if (context instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)context;
            TCFDataCache<Map<String,ExecutionDMC>> cache = ctx.children;
            if (!cache.validate()) {
                cache.addWaitingRequest(new IDataRequest() {
                    public void cancel() {
                        rm.setStatus(new Status(IStatus.CANCEL, Activator.PLUGIN_ID,
                                REQUEST_FAILED, "Canceled", null)); //$NON-NLS-1$
                        rm.setCanceled(true);
                        rm.done();
                    }
                    public void done() {
                        getContexts(ctx, rm, has_state);
                    }
                });
                return;
            }
            if (cache.getError() != null) {
                rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                        REQUEST_FAILED, "Data error", cache.getError())); //$NON-NLS-1$
                rm.done();
                return;
            }
            if (cache.getData() == null) {
                rm.setData(new ExecutionDMC[0]);
                rm.done();
                return;
            }
            final Set<IDataRequest> reqs = new HashSet<IDataRequest>();
            for (ExecutionDMC e : cache.getData().values()) {
                if (!e.context.validate()) {
                    IDataRequest req = new IDataRequest() {
                        public void cancel() {
                            if (reqs.remove(this) && reqs.isEmpty()) getContexts(ctx, rm, has_state);
                        }
                        public void done() {
                            if (reqs.remove(this) && reqs.isEmpty()) getContexts(ctx, rm, has_state);
                        }
                    };
                    reqs.add(req);
                    e.context.addWaitingRequest(req);
                }
                // TODO DSF service design does not support lazy retrieval of context state (because isSuspened() is not async)
                else if (!e.state.validate()) {
                    IDataRequest req = new IDataRequest() {
                        public void cancel() {
                            if (reqs.remove(this) && reqs.isEmpty()) getContexts(ctx, rm, has_state);
                        }
                        public void done() {
                            if (reqs.remove(this) && reqs.isEmpty()) getContexts(ctx, rm, has_state);
                        }
                    };
                    reqs.add(req);
                    e.state.addWaitingRequest(req);
                }
            }
            if (reqs.isEmpty()) {
                ArrayList<ExecutionDMC> l = new ArrayList<ExecutionDMC>();
                for (ExecutionDMC e : cache.getData().values()) {
                    assert e.context.isValid();
                    RunControlContext c = e.context.getData();
                    if (c.hasState() == has_state) l.add(e);
                }
                rm.setData(l.toArray(new ExecutionDMC[l.size()]));
                rm.done();
            }
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }
    
    public Collection<TCFDSFExecutionDMC> getCachedContexts() {
        ArrayList<TCFDSFExecutionDMC> l = new ArrayList<TCFDSFExecutionDMC>();
        for (ExecutionDMC dmc : cache.values()) l.add(dmc);
        return l;
    }

    public void step(IDMContext context, StepType stepType, final RequestMonitor rm) {
        if (context instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null) {
                    int md = -1;
                    if (c.canResume(com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO_LINE)) {
                        switch (stepType) {
                        case STEP_OVER:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OVER_LINE;
                            break;
                        case STEP_INTO:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO_LINE;
                            break;
                        case STEP_RETURN:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OUT;
                            break;
                        }
                    }
                    else {
                        switch (stepType) {
                        case STEP_OVER:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OVER;
                            break;
                        case STEP_INTO:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO;
                            break;
                        case STEP_RETURN:
                            md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OUT;
                            break;
                        }
                    }
                    if (md < 0) {
                        rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                NOT_SUPPORTED, "Invalid step type", null)); //$NON-NLS-1$
                        rm.done();
                    }
                    else {
                        c.resume(md, 1, new com.windriver.tcf.api.services.IRunControl.DoneCommand() {
                            public void doneCommand(IToken token, Exception error) {
                                if (rm.isCanceled()) return;
                                if (error != null) {
                                    rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                            REQUEST_FAILED, "Command error", error)); //$NON-NLS-1$
                                }
                                ctx.is_stepping--;
                                rm.done();
                            }
                        });
                        ctx.is_stepping++;
                    }
                    return;
                }
            }
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
            rm.done();
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }

    public void instructionStep(IDMContext context, StepType stepType, final RequestMonitor rm) {
        if (context instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null) {
                    int md = -1;
                    switch (stepType) {
                    case STEP_OVER:
                        md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OVER;
                        break;
                    case STEP_INTO:
                        md = com.windriver.tcf.api.services.IRunControl.RM_STEP_INTO;
                        break;
                    case STEP_RETURN:
                        md = com.windriver.tcf.api.services.IRunControl.RM_STEP_OUT;
                        break;
                    }
                    if (md < 0) {
                        rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                NOT_SUPPORTED, "Invalid step type", null)); //$NON-NLS-1$
                        rm.done();
                    }
                    else {
                        c.resume(md, 1, new com.windriver.tcf.api.services.IRunControl.DoneCommand() {
                            public void doneCommand(IToken token, Exception error) {
                                if (rm.isCanceled()) return;
                                if (error != null) {
                                    rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                            REQUEST_FAILED, "Command error", error)); //$NON-NLS-1$
                                }
                                ctx.is_stepping--;
                                rm.done();
                            }
                        });
                        ctx.is_stepping++;
                    }
                    return;
                }
            }
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
            rm.done();
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }

    public boolean isStepping(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC x = (ExecutionDMC)context;
            return x.is_stepping > 0;
        }
        return false;
    }

    public void resume(IDMContext context, final RequestMonitor rm) {
        if (context instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null) {
                    c.resume(com.windriver.tcf.api.services.IRunControl.RM_RESUME, 1,
                            new com.windriver.tcf.api.services.IRunControl.DoneCommand() {
                        public void doneCommand(IToken token, Exception error) {
                            if (rm.isCanceled()) return;
                            if (error != null) {
                                rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                        REQUEST_FAILED, "Command error", error)); //$NON-NLS-1$
                            }
                            ctx.is_resuming--;
                            rm.done();
                        }
                    });
                    ctx.is_resuming++;
                    return;
                }
            }
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
            rm.done();
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }

    public void suspend(IDMContext context, final RequestMonitor rm) {
        if (context instanceof ExecutionDMC) {
            final ExecutionDMC ctx = (ExecutionDMC)context;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null) {
                    c.suspend(new com.windriver.tcf.api.services.IRunControl.DoneCommand() {
                        public void doneCommand(IToken token, Exception error) {
                            if (rm.isCanceled()) return;
                            if (error != null) {
                                rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                                        REQUEST_FAILED, "Command error", error)); //$NON-NLS-1$
                            }
                            rm.done();
                        }
                    });
                    return;
                }
            }
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Invalid context", null)); //$NON-NLS-1$
            rm.done();
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Unknown DMC type", null)); //$NON-NLS-1$
            rm.done();
        }
    }

    public boolean isSuspended(IDMContext context) {
        if (context instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)context;
            boolean r = false;
            if (ctx.context.isValid()) {
                RunControlContext c = ctx.context.getData();
                if (c != null && c.hasState()) {
                    if (ctx.is_resuming == 0 && ctx.is_stepping == 0 && ctx.state.isValid()) {
                        ExecutionState st = ctx.state.getData();
                        if (st != null) r = st.is_suspended;
                    }
                }
                else if (ctx.children.isValid()) {
                    Map<String,ExecutionDMC> m = ctx.children.getData();
                    if (m != null) {
                        for (ExecutionDMC e : m.values()) {
                            if (isSuspended(e)) r = true;
                        }
                    }
                }
            }
            return r;
        }
        return false;
    }

    public void getExecutionData(IExecutionDMContext dmc, DataRequestMonitor<IExecutionDMData> rm) {
        if (dmc instanceof ExecutionDMC) {
            ExecutionDMC ctx = (ExecutionDMC)dmc;
            StateChangeReason r = StateChangeReason.UNKNOWN;
            if (ctx.state.isValid()) {
                ExecutionState st = ctx.state.getData();
                if (st != null && st.suspend_reason != null) {
                    r = toStateChangeReason(st.suspend_reason); 
                }
            }
            rm.setData(new ExecutionData(r));
        }
        else {
            rm.setStatus(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
                    INVALID_HANDLE, "Given context: " + dmc + " is not an execution context.", null)); //$NON-NLS-1$ //$NON-NLS-2$
        }
        rm.done();
    }
}

Back to the top