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
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
|
/*
* Copyright (C) 2017 "Audiokinetic Inc"
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <string.h>
#include "ahl-binding.h"
#include "ahl-apidef.h" // Generated from JSON OpenAPI
#include "wrap-json.h"
#include "ahl-policy.h"
#include "ahl-json.h"
// Global high-level binding context
AHLCtxT g_AHLCtx;
static EndpointTypeT EndpointTypeToEnum(char * in_pEndpointTypeStr)
{
if (in_pEndpointTypeStr == NULL) {
return ENDPOINTTYPE_MAXVALUE;
}
else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SOURCE)==0) {
return ENDPOINTTYPE_SOURCE;
}
else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SINK)==0) {
return ENDPOINTTYPE_SINK;
}
else
return ENDPOINTTYPE_MAXVALUE;
}
static StreamStateT StreamStateToEnum(char * in_pStreamStateStr)
{
if (in_pStreamStateStr == NULL) {
return STREAM_STATE_MAXVALUE;
}
else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_IDLE)==0) {
return STREAM_STATE_IDLE;
}
else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_RUNNING)==0) {
return STREAM_STATE_RUNNING;
}
else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_PAUSED)==0) {
return STREAM_STATE_PAUSED;
}
else
return STREAM_STATE_MAXVALUE;
}
static streamID_t CreateNewStreamID()
{
streamID_t newID = g_AHLCtx.nextStreamID;
g_AHLCtx.nextStreamID++;
return newID;
}
static EndpointInfoT * GetEndpointInfoWithRole(endpointID_t in_endpointID, EndpointTypeT in_endpointType, RoleInfoT * in_pRole)
{
EndpointInfoT * pEndpointInfo = NULL;
GPtrArray * pDeviceArray = NULL;
if (in_endpointType == ENDPOINTTYPE_SOURCE){
pDeviceArray = in_pRole->pSourceEndpoints;
}
else {
pDeviceArray = in_pRole->pSinkEndpoints;
}
g_assert_nonnull(pDeviceArray);
for (int j = 0; j < pDeviceArray->len; j++) {
EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pDeviceArray,j);
g_assert_nonnull(pCurEndpointInfo);
if (pCurEndpointInfo->endpointID == in_endpointID) {
pEndpointInfo = pCurEndpointInfo;
break;
}
}
return pEndpointInfo;
}
static EndpointInfoT * GetEndpointInfo(endpointID_t in_endpointID, EndpointTypeT in_endpointType)
{
EndpointInfoT * pEndpointInfo = NULL;
GHashTableIter iter;
gpointer key, value;
g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo);
while (pEndpointInfo == NULL && g_hash_table_iter_next (&iter, &key, &value))
{
RoleInfoT * pRoleInfo = (RoleInfoT*)value;
pEndpointInfo = GetEndpointInfoWithRole(in_endpointID,in_endpointType,pRoleInfo);
}
return pEndpointInfo;
}
static StreamInfoT * GetStream(streamID_t in_streamID)
{
if (g_AHLCtx.policyCtx.pStreams == NULL)
return NULL;
return g_hash_table_lookup(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&in_streamID));
}
static RoleInfoT * GetRole(char * in_pAudioRoleName)
{
if (g_AHLCtx.policyCtx.pRoleInfo == NULL)
return NULL;
return g_hash_table_lookup(g_AHLCtx.policyCtx.pRoleInfo,in_pAudioRoleName);
}
static int CloseStream(AHLClientCtxT * in_pClientCtx, streamID_t streamID,struct afb_req * pReq) {
StreamInfoT * pStreamInfo = GetStream(streamID);
if (pStreamInfo == NULL) {
AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID);
return AHL_FAIL;
}
#ifndef AHL_DISCONNECT_POLICY
json_object *pPolicyStreamJ = NULL;
int err = StreamInfoToJSON(pStreamInfo, &pPolicyStreamJ);
if (err == AHL_POLICY_UTIL_FAIL)
{
AFB_ERROR("Audio policy violation, Unable to get JSON object for Policy_CloseStream");
return AHL_FAIL;
}
int policyAllowed = Policy_CloseStream(pPolicyStreamJ);
if (policyAllowed == AHL_POLICY_REJECT)
{
AFB_ERROR("Close stream not allowed in current context");
return AHL_FAIL;
}
#endif
// Unsubscribe client from stream events
if (pReq != NULL) {
char streamEventName[128];
snprintf(streamEventName,128,"ahl_streamstate_%d",streamID);
int iValid = afb_event_is_valid(pStreamInfo->streamStateEvent);
if (iValid) {
err = afb_req_unsubscribe(*pReq,pStreamInfo->streamStateEvent);
if (err) {
AFB_ERROR("Could not unsubscribe state change event for streamID:%i with AudioRole: %s", streamID, pStreamInfo->pRoleName);
return AHL_FAIL;
}
}
}
// Remove from stream list (if present)
if (g_AHLCtx.policyCtx.pStreams)
g_hash_table_remove(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&pStreamInfo->streamID));
free(pStreamInfo);
pStreamInfo = NULL;
// Find index for cases where there are multiple streams per client
// Remove from client context stream ID and endpoint ID access rights
if (in_pClientCtx->pStreamAccessList) {
for (int i = 0; i < in_pClientCtx->pStreamAccessList->len ; i++) {
streamID_t iID = g_array_index(in_pClientCtx->pStreamAccessList,streamID_t,i);
if (iID == streamID) {
g_array_remove_index(in_pClientCtx->pStreamAccessList, i);
}
}
}
return AHL_SUCCESS;
}
static int CloseAllClientStreams(AHLClientCtxT * in_pClientCtx, struct afb_req * pReq)
{
g_assert_nonnull(in_pClientCtx);
if (in_pClientCtx->pStreamAccessList != NULL) {
while( in_pClientCtx->pStreamAccessList->len )
{
streamID_t streamID = g_array_index(in_pClientCtx->pStreamAccessList,streamID_t,0);
int err = CloseStream(in_pClientCtx,streamID,pReq);
if (err) {
return err;
}
}
}
return AHL_SUCCESS;
}
static AHLClientCtxT * AllocateClientContext()
{
AHLClientCtxT * pClientCtx = malloc(sizeof(AHLClientCtxT));
pClientCtx->pStreamAccessList = g_array_new(FALSE, TRUE, sizeof(streamID_t));
return pClientCtx;
}
static void TerminateClientContext(void * ptr)
{
AHLClientCtxT * pClientCtx = (AHLClientCtxT *) ptr;
if (pClientCtx != NULL) {
CloseAllClientStreams(pClientCtx,NULL);
if (pClientCtx->pStreamAccessList) {
g_array_free( pClientCtx->pStreamAccessList, TRUE);
pClientCtx->pStreamAccessList = NULL;
}
free(pClientCtx);
}
}
static int CheckStreamAccessControl(AHLClientCtxT * pClientCtx, streamID_t streamID)
{
int iAccessControl = AHL_ACCESS_CONTROL_DENIED;
if (pClientCtx && pClientCtx->pStreamAccessList) {
for (int i = 0; i < pClientCtx->pStreamAccessList->len ; i++) {
streamID_t iID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i);
if (iID == streamID) {
iAccessControl = AHL_ACCESS_CONTROL_GRANTED;
}
}
}
return iAccessControl;
}
static int CreateEvents()
{
g_AHLCtx.policyCtx.propertyEvent = afb_daemon_make_event(AHL_ENDPOINT_PROPERTY_EVENT);
int err = !afb_event_is_valid(g_AHLCtx.policyCtx.propertyEvent);
if (err) {
AFB_ERROR("Could not create endpoint property change event");
return AHL_FAIL;
}
g_AHLCtx.policyCtx.volumeEvent = afb_daemon_make_event(AHL_ENDPOINT_VOLUME_EVENT);
err = !afb_event_is_valid(g_AHLCtx.policyCtx.volumeEvent);
if (err) {
AFB_ERROR("Could not create endpoint volume change event");
return AHL_FAIL;
}
g_AHLCtx.policyCtx.postActionEvent = afb_daemon_make_event(AHL_POST_ACTION_EVENT);
err = !afb_event_is_valid(g_AHLCtx.policyCtx.postActionEvent);
if (err) {
AFB_ERROR("Could not create post action event call event");
return AHL_FAIL;
}
return AHL_SUCCESS;
}
static void AhlBindingTerm()
{
#ifndef AHL_DISCONNECT_POLICY
// Policy termination
Policy_Term();
#endif
// Roles
if (g_AHLCtx.policyCtx.pRoleInfo != NULL) {
GHashTableIter iter;
gpointer key, value;
g_hash_table_iter_init(&iter, g_AHLCtx.policyCtx.pRoleInfo);
while (g_hash_table_iter_next (&iter, &key, &value))
{
RoleInfoT * pRole = (RoleInfoT *)value;
if (pRole)
{
if(pRole->pRoleName) {
g_free(pRole->pRoleName);
pRole->pRoleName = NULL;
}
// Actions
if (pRole->pActionList) {
for (int i = 0; i < pRole->pActionList->len; i++)
{
g_ptr_array_remove_index( pRole->pActionList, i ); // Free char * is called by GLib
}
}
// Source endpoints
if (pRole->pSourceEndpoints) {
g_ptr_array_unref(pRole->pSourceEndpoints);
}
// Sink endpoints
if (pRole->pSinkEndpoints) {
g_ptr_array_unref(pRole->pSinkEndpoints);
}
free(pRole);
}
}
g_hash_table_remove_all(g_AHLCtx.policyCtx.pRoleInfo);
g_hash_table_destroy(g_AHLCtx.policyCtx.pRoleInfo);
g_AHLCtx.policyCtx.pRoleInfo = NULL;
}
if (g_AHLCtx.policyCtx.pStreams) {
GHashTableIter iter;
gpointer key, value;
g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pStreams);
while (g_hash_table_iter_next (&iter, &key, &value))
{
if (value)
free(value);
}
g_hash_table_remove_all(g_AHLCtx.policyCtx.pStreams);
g_hash_table_destroy(g_AHLCtx.policyCtx.pStreams);
g_AHLCtx.policyCtx.pStreams = NULL;
}
if (g_AHLCtx.policyCtx.pHALList) {
g_ptr_array_free(g_AHLCtx.policyCtx.pHALList,TRUE);
g_AHLCtx.policyCtx.pHALList = NULL;
}
AFB_INFO("Audio high-level binding termination success");
}
// Binding initialization
PUBLIC int AhlBindingInit()
{
memset(&g_AHLCtx,0,sizeof(g_AHLCtx));
// Register exit function
atexit(AhlBindingTerm);
// Create AGL Events
int err = CreateEvents();
if(err) {
// Error messages already reported inside CreateEvents
return AHL_FAIL;
}
// Parse high-level binding JSON configuration file (will build device lists)
err = ParseHLBConfig();
if(err) {
// Error messages already reported inside ParseHLBConfig
return AHL_FAIL;
}
#ifndef AHL_DISCONNECT_POLICY
// Policy initialization
AFB_DEBUG("Audio high-level policy initialization");
err = Policy_Init();
if(err == AHL_POLICY_REJECT) {
//Error messages already reported inside PolicyInit
return AHL_FAIL;
}
// Call policy for initalization of all source + sink endpoints for all audio Roles
GHashTableIter iter;
gpointer key, value;
g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo);
while (g_hash_table_iter_next (&iter, &key, &value))
{
RoleInfoT * pRoleInfo = (RoleInfoT*)value;
if (pRoleInfo->pSourceEndpoints){
// for all source endpoints
for (int j = 0; j < pRoleInfo->pSourceEndpoints->len; j++) {
EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSourceEndpoints,j);
g_assert_nonnull(pCurEndpointInfo);
json_object *pInPolicyEndpointJ = NULL;
err = EndpointInfoToJSON(pCurEndpointInfo, &pInPolicyEndpointJ);
if (err) {
AFB_ERROR("Unable to create source endpoint JSON object from endpoint info for endpoint_id:%d error:%s ",pCurEndpointInfo->endpointID, wrap_json_get_error_string(err));
return AHL_FAIL;
}
else
{
json_object * pOutPolicyEndpointJ = NULL;
err = Policy_Endpoint_Init(pInPolicyEndpointJ,&pOutPolicyEndpointJ);
if (err == AHL_POLICY_REJECT) {
AFB_WARNING("Policy source endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);
// continue
}
json_object_put(pInPolicyEndpointJ);
err = UpdateEndpointInfo(pCurEndpointInfo,pOutPolicyEndpointJ);
if (err) {
AFB_ERROR("Policy source endpoint properties update failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);
return AHL_FAIL;
}
// json_object_put(pOutPolicyEndpointJ);
}
}
}
if (pRoleInfo->pSinkEndpoints){
// for all sink endpoints
for (int j = 0; j < pRoleInfo->pSinkEndpoints->len; j++) {
EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSinkEndpoints,j);
g_assert_nonnull(pCurEndpointInfo);
json_object *pInPolicyEndpointJ = NULL;
err = EndpointInfoToJSON(pCurEndpointInfo, &pInPolicyEndpointJ);
if (err) {
AFB_ERROR("Unable to create sink endpoint JSON object from endpoint info for endpoint_id:%d error:%s ",pCurEndpointInfo->endpointID, wrap_json_get_error_string(err));
return AHL_FAIL;
}
else
{
json_object *pOutPolicyEndpointJ = NULL;
err = Policy_Endpoint_Init(pInPolicyEndpointJ,&pOutPolicyEndpointJ);
if (err == AHL_POLICY_REJECT) {
AFB_WARNING("Policy sink endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);
// continue
}
json_object_put(pInPolicyEndpointJ);
err = UpdateEndpointInfo(pCurEndpointInfo,pOutPolicyEndpointJ);
if (err) {
AFB_ERROR("Policy sink endpoint properties update failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type);
return AHL_FAIL;
}
//json_object_put(pOutPolicyEndpointJ);
}
}
}
}
#endif // AHL_DISCONNECT_POLICY
// Initialize list of active streams
g_AHLCtx.policyCtx.pStreams = g_hash_table_new(g_int_hash, g_int_equal);
if(g_AHLCtx.policyCtx.pStreams == NULL)
{
AFB_ERROR("Unable to create Active Stream List");
return AHL_FAIL;
}
AFB_DEBUG("Audio high-level binding initialization success");
return AHL_SUCCESS;
}
PUBLIC void AhlOnEvent(const char *evtname, json_object *eventJ)
{
AFB_DEBUG("AHL received event %s", evtname);
// TODO: Handle event from the policy to update internal information (currently not possible since within the same binding)
#ifndef AHL_DISCONNECT_POLICY
// Temp: currently forward to policy to handle events (they will be received directly when disconnected into separate binding)
Policy_OnEvent(evtname, eventJ);
#endif
}
PUBLIC void audiohlapi_get_endpoints(struct afb_req req)
{
json_object *devicesJ = NULL;
json_object *deviceJ = NULL;
json_object *queryJ = NULL;
char * audioRole = NULL;
char * pEndpointTypeStr = NULL;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:s}", "audio_role", &audioRole,"endpoint_type",&pEndpointTypeStr);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
endpointType = EndpointTypeToEnum(pEndpointTypeStr);
RoleInfoT * pRole = GetRole(audioRole);
if ( pRole == NULL )
{
afb_req_fail_f(req, "Invalid arguments", "Requested audio role:%s does not exist in current configuration -> %s", audioRole, json_object_get_string(queryJ));
return;
}
else
{
devicesJ = json_object_new_array();
GPtrArray * pDeviceArray = NULL;
if (endpointType == ENDPOINTTYPE_SOURCE)
pDeviceArray = pRole->pSourceEndpoints;
else
pDeviceArray = pRole->pSinkEndpoints;
if (pDeviceArray) {
int iNumberDevices = pDeviceArray->len;
for ( int j = 0 ; j < iNumberDevices; j++)
{
EndpointInfoT * pEndpointInfo = g_ptr_array_index(pDeviceArray,j);
if (pEndpointInfo) {
JSONPublicPackageEndpoint(pEndpointInfo,&deviceJ);
json_object_array_add(devicesJ, deviceJ);
}
}
}
}
afb_req_success(req, devicesJ, "List of endpoints");
}
PUBLIC void audiohlapi_stream_open(struct afb_req req)
{
json_object *streamInfoJ = NULL;
StreamInfoT * pStreamInfo = NULL;
json_object *queryJ = NULL;
char * audioRole = NULL;
char * endpointTypeStr = NULL;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
endpointID_t endpointID = AHL_UNDEFINED;
EndpointInfoT * pEndpointInfo = NULL;
EndpointSelectionModeT endpointSelMode = ENDPOINTSELMODEMAXVALUE;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?i}", "audio_role", &audioRole, "endpoint_type", &endpointTypeStr, "endpoint_id", &endpointID);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
endpointType = EndpointTypeToEnum(endpointTypeStr);
// Check if there is already an existing context for this client
AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
if (pClientCtx == NULL)
{
pClientCtx = AllocateClientContext();
afb_req_context_set(req, pClientCtx, TerminateClientContext);
}
RoleInfoT * pRole = GetRole(audioRole);
if ( pRole == NULL )
{
afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
return;
}
GPtrArray * pDeviceArray = NULL;
if (endpointType == ENDPOINTTYPE_SOURCE){
pDeviceArray = pRole->pSourceEndpoints;
}
else{
pDeviceArray = pRole->pSinkEndpoints;
}
if (pDeviceArray == NULL || pDeviceArray->len == 0) {
afb_req_fail_f(req, "No available devices", "No available devices for role:%s and device type:%s",audioRole,endpointTypeStr);
return;
}
if (endpointID == AHL_UNDEFINED)
{
// Assign a device based on configuration priority (first in the list for requested role and endpoint type)
pEndpointInfo = g_ptr_array_index(pDeviceArray,0);
endpointSelMode = ENDPOINTSELMODE_AUTO;
}
else{
endpointSelMode = ENDPOINTSELMODE_MANUAL;
// Find specified endpoint ID in list of devices
int iNumberDevices = pDeviceArray->len;
for ( int j = 0 ; j < iNumberDevices; j++)
{
pEndpointInfo = g_ptr_array_index(pDeviceArray,j);
if (pEndpointInfo && pEndpointInfo->endpointID == endpointID) {
break;
}
pEndpointInfo = NULL;
}
}
if (pEndpointInfo == NULL) {
afb_req_fail_f(req, "Endpoint not available", "Specified endpoint not available for role:%s and device type:%d endpoint id %d",audioRole,endpointType,endpointID);
return;
}
pStreamInfo = (StreamInfoT*) malloc(sizeof(StreamInfoT));
memset(pStreamInfo,0,sizeof(StreamInfoT));
// Create stream
pStreamInfo->streamID = CreateNewStreamID(); // create new ID
pStreamInfo->streamState = STREAM_STATE_IDLE;
pStreamInfo->streamMute = STREAM_UNMUTED;
pStreamInfo->pEndpointInfo = pEndpointInfo;
pStreamInfo->endpointSelMode = endpointSelMode;
// Directly from role config for now, but could be programmatically overriden in the future
pStreamInfo->pRoleName = pRole->pRoleName;
pStreamInfo->iPriority = pRole->iPriority;
pStreamInfo->eInterruptBehavior = pRole->eInterruptBehavior;
#ifndef AHL_DISCONNECT_POLICY
// Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions
json_object *pPolicyStreamJ = NULL;
err = StreamInfoToJSON(pStreamInfo,&pPolicyStreamJ);
if (err)
{
afb_req_fail(req, "Cannot convert stream info to JSON", "Unable to get JSON object for Policy_OpenStream");
return;
}
int policyAllowed = Policy_OpenStream(pPolicyStreamJ);
if (policyAllowed == AHL_POLICY_REJECT)
{
afb_req_fail_f(req, "Audio policy violation", "Open stream for role: %s on endpoint_id:%d not allowed in current context",pRole->pRoleName,pEndpointInfo->endpointID);
return;
}
#endif
char streamEventName[128];
snprintf(streamEventName,128,"ahl_streamstate_%d",pStreamInfo->streamID);
pStreamInfo->streamStateEvent = afb_daemon_make_event(streamEventName);
err = !afb_event_is_valid(pStreamInfo->streamStateEvent);
if (err) {
afb_req_fail_f(req, "Stream event creation failure", "Could not create stream specific state change event: %s",streamEventName);
return;
}
err = afb_req_subscribe(req,pStreamInfo->streamStateEvent);
if (err) {
afb_req_fail_f(req, "Stream event subscription failure", "Could not subscribe to stream specific state change event for event name: %s",streamEventName);
return;
}
// Add to client context stream ID access rights
g_array_append_val(pClientCtx->pStreamAccessList, pStreamInfo->streamID);
// Push stream on active stream list
if (g_AHLCtx.policyCtx.pStreams)
g_hash_table_insert( g_AHLCtx.policyCtx.pStreams, GINT_TO_POINTER(&pStreamInfo->streamID), pStreamInfo );
// Package and return stream information to client
JSONPublicPackageStream(pStreamInfo,&streamInfoJ);
afb_req_success(req, streamInfoJ, "Stream info structure");
}
PUBLIC void audiohlapi_stream_close(struct afb_req req)
{
json_object *queryJ = NULL;
streamID_t streamID = AHL_UNDEFINED;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s?i}", "stream_id", &streamID);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
// Check if there is already an existing context for this client
AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
if (pClientCtx == NULL)
{
afb_req_fail(req, "Missing client info context", "No client context associated with the request (is there an opened stream by this client?)");
return;
}
if (streamID == AHL_UNDEFINED) {
AFB_DEBUG("StreamID not specified. Closing all stream for client");
err = CloseAllClientStreams(pClientCtx,&req);
if (err) {
afb_req_fail(req, "Error closing streams", "Streams cannot close");
return;
}
}
else {
AFB_DEBUG("Closing streamID:%d",streamID);
err = CloseStream(pClientCtx,streamID,&req);
if (err) {
afb_req_fail_f(req, "Error closing stream", "Specified stream cannot close stream_id -> %d",streamID);
return;
}
}
afb_req_success(req, NULL, "Stream close completed");
}
static int SetStreamState(AHLClientCtxT * in_pClientCtx,struct afb_req * pReq, streamID_t streamID, char * pStreamStateStr, int iMuteValue) {
StreamInfoT * pStreamInfo = GetStream(streamID);
if (pStreamInfo == NULL) {
afb_req_fail_f(*pReq, "Stream not found", "Specified stream not found stream_id -> %d",streamID);
return AHL_FAIL;
}
// Verify that this client can control the stream
int iStreamAccessControl = CheckStreamAccessControl( in_pClientCtx, streamID );
if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED)
{
afb_req_fail_f(*pReq, "Access control denied", "Current client is not the owner of streamID:%d", streamID);
return AHL_FAIL;
}
if (pStreamStateStr != NULL) {
StreamStateT streamState = StreamStateToEnum(pStreamStateStr);
#ifndef AHL_DISCONNECT_POLICY
json_object *pPolicyStreamJ = NULL;
int err = StreamInfoToJSON(pStreamInfo, &pPolicyStreamJ);
if (err == AHL_POLICY_UTIL_FAIL)
{
afb_req_fail_f(*pReq, "JSON packaging error", "Unable to create stream JSON object for Policy_SetStreamState for streamID:%d",streamID);
return AHL_FAIL;
}
json_object *paramJ= json_object_new_int(streamState);
json_object_object_add(pPolicyStreamJ, "arg_stream_state", paramJ);
int policyAllowed = Policy_SetStreamState(pPolicyStreamJ);
if (policyAllowed == AHL_POLICY_REJECT)
{
afb_req_fail_f(*pReq, "Audio policy violation", "Change stream state not allowed by policy in current context for streamID:%d",streamID);
return AHL_FAIL;
}
#else
// Simulate that policy returns target state (accepted)
pStreamInfo->streamState = streamState;
#endif
}
#ifndef AHL_DISCONNECT_POLICY
json_object *pPolicyStreamJ = NULL;
int err = StreamInfoToJSON(pStreamInfo, &pPolicyStreamJ);
if (err == AHL_POLICY_UTIL_FAIL)
{
afb_req_fail_f((*pReq), "JSON packaging error", "Unable to create stream JSON object for Policy_SetStreamMute for streamID:%d",streamID);
return AHL_FAIL;
}
json_object *paramJ= json_object_new_int(iMuteValue);
json_object_object_add(pPolicyStreamJ, "mute_state", paramJ);
int policyAllowed = Policy_SetStreamMute(pPolicyStreamJ);
if (policyAllowed == AHL_POLICY_REJECT)
{
afb_req_fail_f(*pReq, "Audio policy violation", "Mute stream not allowed by policy in current context for streamID:%d",streamID);
return AHL_FAIL;
}
#else
// Simulate that policy returns target state (accepted)
pStreamInfo->streamMute = (StreamMuteT)(*piMuteValue);
#endif
return AHL_SUCCESS;
}
PUBLIC void audiohlapi_set_stream_state(struct afb_req req)
{
json_object *queryJ = NULL;
streamID_t streamID = AHL_UNDEFINED;
char * streamStateStr = NULL;
int iMuteValue = 0;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s?i,s?s,s?i}", "stream_id", &streamID,"state",&streamStateStr,"mute",&iMuteValue);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
// Check if there is already an existing context for this client
AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure
if (pClientCtx == NULL)
{
afb_req_fail(req, "Missing client info context", "No client context associated with the request (is there an opened stream by this client?)");
return;
}
if (streamID == AHL_UNDEFINED) {
// All stream for this client
if (pClientCtx->pStreamAccessList != NULL) {
for (int i = 0; i < pClientCtx->pStreamAccessList->len; i++)
{
streamID_t curStreamID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i);
err = SetStreamState(pClientCtx,&req,curStreamID,streamStateStr,iMuteValue);
if (err) {
// Error displayed within SetStreamState
return;
}
}
}
}
else {
err = SetStreamState(pClientCtx,&req,streamID,streamStateStr,iMuteValue);
if (err) {
// Error displayed within SetStreamState
return;
}
}
afb_req_success(req, NULL, "Set stream state");
}
PUBLIC void audiohlapi_get_stream_info(struct afb_req req)
{
json_object *queryJ = NULL;
streamID_t streamID = AHL_UNDEFINED;
json_object * streamInfoJ = NULL;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:i}", "stream_id", &streamID);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
StreamInfoT * pStreamInfo = GetStream(streamID);
if (pStreamInfo == NULL) {
afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID);
return;
}
JSONPublicPackageStream(pStreamInfo,&streamInfoJ);
afb_req_success(req, streamInfoJ, "Get stream info completed");
}
PUBLIC void audiohlapi_volume(struct afb_req req)
{
json_object *queryJ = NULL;
endpointID_t endpointID = AHL_UNDEFINED;
char * pEndpointTypeStr = NULL;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
char * volumeStr = NULL;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:i,s?s}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"volume",&volumeStr);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
endpointType = EndpointTypeToEnum(pEndpointTypeStr);
EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
if (pEndpointInfo == NULL)
{
afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for endpoint_id:%d type:%d",endpointID,endpointType);
return;
}
if (volumeStr != NULL) {
#ifndef AHL_DISCONNECT_POLICY
json_object *pPolicyEndpointJ = NULL;
err = EndpointInfoToJSON(pEndpointInfo, &pPolicyEndpointJ);
if (err == AHL_POLICY_UTIL_FAIL)
{
afb_req_fail_f(req, "JSON packaging error", "Unable to create endpoint JSON object for Policy_SetVolume for endpoint_id:%d type:%d",endpointID,endpointType);
return;
}
json_object *paramJ= json_object_new_string(volumeStr);
json_object_object_add(pPolicyEndpointJ, "arg_volume", paramJ);
json_object * pPolicyVolumeReply = NULL;
int policyAllowed = Policy_SetVolume(pPolicyEndpointJ,&pPolicyVolumeReply);
if (!policyAllowed)
{
afb_req_fail_f(req, "Audio policy violation", "Set volume not allowed by policy in current context for endpoint_id:%d type:%d",endpointID,endpointType);
return;
}
err = wrap_json_unpack(pPolicyVolumeReply,"{s:i}","volume",&pEndpointInfo->iVolume);
if (err) {
afb_req_fail_f(req, "Invalid policy reply", "Policy volume change reply for endpoint_id:%d type:%d not a valid JSON object=%s", endpointID,endpointType,json_object_get_string(pPolicyVolumeReply));
return;
}
#else
// Simulate that policy returns target state (accepted)
pEndpointInfo->iVolume = atoi(volumeStr);
#endif
}
json_object * volumeJ = json_object_new_int(pEndpointInfo->iVolume);
afb_req_success(req, volumeJ, "Set/get volume completed");
}
PUBLIC void audiohlapi_get_endpoint_info(struct afb_req req)
{
json_object *queryJ = NULL;
endpointID_t endpointID = AHL_UNDEFINED;
char * pEndpointTypeStr = NULL;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:i}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
endpointType = EndpointTypeToEnum(pEndpointTypeStr);
EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
if (pEndpointInfo == NULL)
{
afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType);
return;
}
json_object *endpointInfoJ = NULL;
EndpointInfoToJSON(pEndpointInfo,&endpointInfoJ);
afb_req_success(req, endpointInfoJ, "Retrieved endpoint information and properties");
}
PUBLIC void audiohlapi_property(struct afb_req req)
{
json_object *queryJ = NULL;
endpointID_t endpointID = AHL_UNDEFINED;
char * pEndpointTypeStr = NULL;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
char * propertyName = NULL;
json_object * propValueJ = NULL;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s,s?o}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"property_name",&propertyName,"value",&propValueJ);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
endpointType = EndpointTypeToEnum(pEndpointTypeStr);
EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType);
if (pEndpointInfo == NULL)
{
afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type:%d",endpointID,endpointType);
return;
}
if (propValueJ != NULL) {
#ifndef AHL_DISCONNECT_POLICY
json_object *pPolicyEndpointJ = NULL;
err = EndpointInfoToJSON(pEndpointInfo, &pPolicyEndpointJ);
if (err == AHL_POLICY_UTIL_FAIL)
{
afb_req_fail_f(req, "JSON packaging error", "Unable to create endpoint JSON object for Policy_SetProperty for endpoint_id:%d type:%d",endpointID,endpointType);
return;
}
json_object *paramJ= json_object_new_string(propertyName);
json_object_object_add(pPolicyEndpointJ, "arg_property_name", paramJ);
json_object_object_add(pPolicyEndpointJ, "arg_property_value", propValueJ);
// Call policy to allow custom policy actions in current context
json_object * pPropertyReply = NULL;
int policyAllowed = Policy_SetProperty(pPolicyEndpointJ,&pPropertyReply);
if (!policyAllowed)
{
afb_req_fail_f(req, "Policy violation", "Policy rejected set property control in current context for endpointID: %d type:%d",endpointID,endpointType);
return;
}
json_object * pPropReplyValue = NULL;
err = wrap_json_unpack(pPropertyReply,"{s:o}","value",&pPropReplyValue);
if (err) {
afb_req_fail_f(req, "JSON parse error", "Policy returned property value for endpointID:%d type:%d not a valid JSON object=%s", endpointID,endpointType,json_object_get_string(pPropertyReply));
return;
}
if (pEndpointInfo->pPropTable && pPropReplyValue) {
json_object_get(pPropReplyValue);
g_hash_table_insert(pEndpointInfo->pPropTable, propertyName, pPropReplyValue);
}
#else
// Simulate that policy returns target state (accepted)
if (pEndpointInfo->pPropTable && propValueJ)
json_object_get(propValueJ);
g_hash_table_insert(pEndpointInfo->pPropTable, propertyName, propValueJ);
#endif
}
// Retrieve cached property value
json_object * propertyValJ = (json_object *)g_hash_table_lookup(pEndpointInfo->pPropTable,propertyName);
if (propertyValJ == NULL) {
afb_req_fail_f(req, "Property information not found", "Property information not found for property:%s endpointID:%d type:%d",propertyName,endpointID,endpointType);
return;
}
json_object_get(propertyValJ); // Increase ref count so that framework does not free our JSON object
afb_req_success(req, propertyValJ, "Set/get property completed");
}
PUBLIC void audiohlapi_get_list_actions(struct afb_req req)
{
json_object *queryJ = NULL;
char * audioRole = NULL;
json_object * roleActionsJ = NULL;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role",&audioRole);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
// Build and return list of actions for specific audio role
RoleInfoT * pRole = GetRole(audioRole);
if ( pRole == NULL )
{
afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
return;
}
roleActionsJ = json_object_new_array();
if (pRole->pActionList) {
int iNumberActions = pRole->pActionList->len;
for ( int i = 0 ; i < iNumberActions; i++)
{
char * pActionName = g_ptr_array_index(pRole->pActionList,i);
json_object * actionJ = json_object_new_string(pActionName);
json_object_array_add(roleActionsJ, actionJ);
}
}
afb_req_success(req, roleActionsJ, "Retrieved action list for audio role");
}
PUBLIC void audiohlapi_post_action(struct afb_req req)
{
json_object *queryJ = NULL;
char * actionName = NULL;
char * audioRole = NULL;
char * mediaName = NULL;
json_object *actionContext = NULL;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
// Verify if known action for audio role
RoleInfoT * pRole = GetRole(audioRole);
if ( pRole == NULL )
{
afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole);
return;
}
// Check to find specific action
int iActionFound = 0;
if (pRole->pActionList) {
int iNumberActions = pRole->pActionList->len;
char * pTargetActionName = NULL;
for ( int i = 0 ; i < iNumberActions; i++)
{
pTargetActionName = g_ptr_array_index(pRole->pActionList,i);
if ( strcasecmp(pTargetActionName,actionName)==0) {
iActionFound = 1;
break;
}
}
}
if (!iActionFound) {
afb_req_fail_f(req, "Action not found for audio role", "Action -> %s not found for role:%s",actionName,audioRole);
return;
}
// Disable this to avoid problems (temporary solution)
// #ifndef AHL_DISCONNECT_POLICY
// // Call policy to allow custom policy actions in current context (e.g. cancel playback)
// json_object * pActionInfo = NULL;
// err = wrap_json_pack(&pActionInfo, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
// if (err) {
// afb_req_fail_f(req, "Invalid arguments", "Could not create action JSON object arguments");
// return;
// }
// json_object_get(pActionInfo);
// int policyAllowed = Policy_PostAction(pActionInfo);
// if (!policyAllowed)
// {
// afb_req_fail_f(req, "Audio policy violation", "Post sound action not allowed by policy in current context for action:%s and audiorole:%s",actionName,audioRole);
// return;
// }
// #endif
afb_req_success(req, NULL, "Posted sound action");
}
PUBLIC void audiohlapi_event_subscription(struct afb_req req)
{
json_object *queryJ = NULL;
json_object * eventArrayJ = NULL;
int iSubscribe = 1;
queryJ = afb_req_json(req);
int err = wrap_json_unpack(queryJ, "{s:o,s:i}", "events", &eventArrayJ,"subscribe",&iSubscribe);
if (err) {
afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ));
return;
}
json_type jType = json_object_get_type(eventArrayJ);
int iNumEvents = 0;
if(jType == json_type_array)
{
iNumEvents = json_object_array_length(eventArrayJ);
}
for (int i = 0; i < iNumEvents; i++)
{
char * pEventName = NULL;
json_object * jEvent = json_object_array_get_idx(eventArrayJ,i);
pEventName = (char *)json_object_get_string(jEvent);
if(pEventName == NULL) {
afb_req_fail(req, "JSON arguments parse error", "Empty event");
return;
}
else if(!strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)) {
if (iSubscribe)
afb_req_subscribe(req, g_AHLCtx.policyCtx.propertyEvent);
else
afb_req_unsubscribe(req, g_AHLCtx.policyCtx.propertyEvent);
}
else if(!strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)) {
if (iSubscribe)
afb_req_subscribe(req, g_AHLCtx.policyCtx.volumeEvent);
else
afb_req_unsubscribe(req, g_AHLCtx.policyCtx.volumeEvent);
}
else if(!strcasecmp(pEventName, AHL_POST_ACTION_EVENT)) {
if (iSubscribe)
afb_req_subscribe(req, g_AHLCtx.policyCtx.postActionEvent);
else
afb_req_unsubscribe(req, g_AHLCtx.policyCtx.postActionEvent);
}
else {
afb_req_fail_f(req, "JSON arguments parse error", "Invalid event:%s",pEventName);
return;
}
}
afb_req_success(req, NULL, "Event subscription update finished");
}
// Since the policy is currently in the same binding, it cannot raise events on its own
// This is a first step toward isolation, when policy is migrated in its own binding it can simply raise AGL events
// This binding will register for these policy events and will execute the code below upon event reception
PUBLIC void audiohlapi_raise_event(json_object * pEventDataJ)
{
char * pEventName = NULL;
int err = wrap_json_unpack(pEventDataJ,"{s:s}","event_name", &pEventName);
if(err)
{
AFB_ERROR("Unable to retrieve event name %s",json_object_get_string(pEventDataJ));
return;
}
if(strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)==0) {
char * pAudioRole = NULL;
char * pPropertyName = NULL;
endpointID_t endpointID = AHL_UNDEFINED;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
json_object * propValueJ = NULL;
int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:s,s:o,s:s}",
"endpoint_id", &endpointID,
"endpoint_type", &endpointType,
"property_name", &pPropertyName,
"value",&propValueJ,
"audio_role", &pAudioRole);
if(err)
{
AFB_ERROR("Unable to unpack property event for event: %s",pEventName);
return;
}
RoleInfoT * pRole = GetRole(pAudioRole);
if ( pRole == NULL ){
AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole);
return;
}
EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole);
// update property value
if ((pEndpointInfo!=NULL) && (pEndpointInfo->pPropTable!=NULL))
{
json_type jType = json_object_get_type(propValueJ);
switch (jType) {
case json_type_double:
g_hash_table_insert(pEndpointInfo->pPropTable, pPropertyName, json_object_new_double(json_object_get_double(propValueJ)));
break;
case json_type_int:
g_hash_table_insert(pEndpointInfo->pPropTable, pPropertyName, json_object_new_int(json_object_get_int(propValueJ)));
break;
case json_type_string:
g_hash_table_insert(pEndpointInfo->pPropTable, pPropertyName, json_object_new_string(json_object_get_string(propValueJ)));
break;
default:
AFB_ERROR("Invalid property argument property value not a valid JSON object query=%s", json_object_get_string(propValueJ));
return ;
}
}
// Remove event name from object
json_object_object_del(pEventDataJ,"event_name");
afb_event_push(g_AHLCtx.policyCtx.propertyEvent,pEventDataJ);
}
else if(strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)==0) {
char * pAudioRole = NULL;
endpointID_t endpointID = AHL_UNDEFINED;
EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
int iVolume = 0;
int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:i,s:s}",
"endpoint_id", &endpointID,
"endpoint_type", &endpointType,
"value",&iVolume,
"audio_role", &pAudioRole);
if(err)
{
AFB_ERROR("Unable to unpack volume event data");
return;
}
RoleInfoT * pRole = GetRole(pAudioRole);
if ( pRole == NULL ){
AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole);
return;
}
EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole);
// update volume value
if(pEndpointInfo)
{
pEndpointInfo->iVolume = iVolume;
}
else
{
AFB_ERROR("Unable to find endpoint id:%d type:%d for role:%s",endpointID,endpointType,pAudioRole);
}
// Remove event name from object
json_object_object_del(pEventDataJ,"event_name");
afb_event_push(g_AHLCtx.policyCtx.volumeEvent,pEventDataJ);
}
else if(strcasecmp(pEventName, AHL_POST_ACTION_EVENT)==0) {
// Remove event name from object
json_object_object_del(pEventDataJ,"event_name");
// BUG: This crashes...
afb_event_push(g_AHLCtx.policyCtx.postActionEvent,pEventDataJ);
}
else if(strcasecmp(pEventName, AHL_STREAM_STATE_EVENT)==0) {
streamID_t streamID = AHL_UNDEFINED;
StreamEventT streamEvent = STREAM_EVENT_MAXVALUE;
int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i}",
"stream_id", &streamID,
"state_event", &streamEvent);
if(err)
{
AFB_ERROR("Unable to unpack stream event data for event %s",pEventName);
return;
}
StreamInfoT * pStreamInfo = GetStream(streamID);
if (pStreamInfo == NULL) {
AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID);
return;
}
// update streamstate value
switch (streamEvent) {
case STREAM_EVENT_START:
pStreamInfo->streamState = STREAM_STATE_RUNNING;
break;
case STREAM_EVENT_STOP:
pStreamInfo->streamState = STREAM_STATE_IDLE;
break;
case STREAM_EVENT_PAUSE:
pStreamInfo->streamState = STREAM_STATE_PAUSED;
break;
case STREAM_EVENT_RESUME:
pStreamInfo->streamState = STREAM_STATE_RUNNING;
break;
case STREAM_EVENT_MUTED:
pStreamInfo->streamMute = STREAM_MUTED;
break;
case STREAM_EVENT_UNMUTED:
pStreamInfo->streamMute = STREAM_UNMUTED;
break;
default:
AFB_ERROR("Unknown stream event");
}
// Remove event name from object
json_object_object_del(pEventDataJ,"event_name");
afb_event_push(pStreamInfo->streamStateEvent,pEventDataJ);
}
else {
AFB_ERROR("Unknown event name %s",pEventName);
}
}
|