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
|
/*
Copyright (C) 2004-2008 Grame
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; either version 2 of the License, or
(at your option) any later version.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <iostream>
#include <fstream>
#include <assert.h>
#ifndef WIN32
#include <sys/types.h>
#include <signal.h>
#endif
#include "JackLockedEngine.h"
#include "JackExternalClient.h"
#include "JackInternalClient.h"
#include "JackEngineControl.h"
#include "JackClientControl.h"
#include "JackGlobals.h"
#include "JackChannel.h"
#include "JackError.h"
namespace Jack
{
#define AssertRefnum(ref) assert(ref >= 0 && ref < CLIENT_NUM);
JackEngine::JackEngine(JackGraphManager* manager,
JackSynchro* table,
JackEngineControl* control)
{
fGraphManager = manager;
fSynchroTable = table;
fEngineControl = control;
for (int i = 0; i < CLIENT_NUM; i++)
fClientTable[i] = NULL;
}
JackEngine::~JackEngine()
{
jack_log("JackEngine::~JackEngine");
}
int JackEngine::Open()
{
jack_log("JackEngine::Open");
// Open audio thread => request thread communication channel
if (fChannel.Open(fEngineControl->fServerName) < 0) {
jack_error("Cannot connect to server");
return -1;
} else {
return 0;
}
}
int JackEngine::Close()
{
jack_log("JackEngine::Close");
fChannel.Close();
// Close remaining clients (RT is stopped)
for (int i = 0; i < CLIENT_NUM; i++) {
if (JackLoadableInternalClient* loadable_client = dynamic_cast<JackLoadableInternalClient*>(fClientTable[i])) {
jack_log("JackEngine::Close loadable client = %s", loadable_client->GetClientControl()->fName);
loadable_client->Close();
// Close does not delete the pointer for internal clients
fClientTable[i] = NULL;
delete loadable_client;
} else if (JackExternalClient* external_client = dynamic_cast<JackExternalClient*>(fClientTable[i])) {
jack_log("JackEngine::Close external client = %s", external_client->GetClientControl()->fName);
external_client->Close();
// Close deletes the pointer for external clients
fClientTable[i] = NULL;
}
}
fSignal.Destroy();
return 0;
}
//-----------------------------
// Client ressource management
//-----------------------------
int JackEngine::AllocateRefnum()
{
for (int i = 0; i < CLIENT_NUM; i++) {
if (!fClientTable[i]) {
jack_log("JackEngine::AllocateRefNum ref = %ld", i);
return i;
}
}
return -1;
}
void JackEngine::ReleaseRefnum(int ref)
{
fClientTable[ref] = NULL;
if (fEngineControl->fTemporary) {
int i;
for (i = REAL_REFNUM; i < CLIENT_NUM; i++) {
if (fClientTable[i])
break;
}
if (i == CLIENT_NUM) {
// last client and temporay case: quit the server
jack_log("JackEngine::ReleaseRefnum server quit");
fEngineControl->fTemporary = false;
#ifndef WIN32
exit(0);
#endif
}
}
}
//------------------
// Graph management
//------------------
void JackEngine::ProcessNext(jack_time_t cur_cycle_begin)
{
fLastSwitchUsecs = cur_cycle_begin;
if (fGraphManager->RunNextGraph()) // True if the graph actually switched to a new state
fChannel.Notify(ALL_CLIENTS, kGraphOrderCallback, 0);
fSignal.SignalAll(); // Signal for threads waiting for next cycle
}
void JackEngine::ProcessCurrent(jack_time_t cur_cycle_begin)
{
if (cur_cycle_begin < fLastSwitchUsecs + 2 * fEngineControl->fPeriodUsecs) // Signal XRun only for the first failing cycle
CheckXRun(cur_cycle_begin);
fGraphManager->RunCurrentGraph();
}
bool JackEngine::Process(jack_time_t cur_cycle_begin, jack_time_t prev_cycle_end)
{
bool res = true;
// Cycle begin
fEngineControl->CycleBegin(fClientTable, fGraphManager, cur_cycle_begin, prev_cycle_end);
// Graph
if (fGraphManager->IsFinishedGraph()) {
ProcessNext(cur_cycle_begin);
res = true;
} else {
jack_log("Process: graph not finished!");
if (cur_cycle_begin > fLastSwitchUsecs + fEngineControl->fTimeOutUsecs) {
jack_log("Process: switch to next state delta = %ld", long(cur_cycle_begin - fLastSwitchUsecs));
ProcessNext(cur_cycle_begin);
res = true;
} else {
jack_log("Process: waiting to switch delta = %ld", long(cur_cycle_begin - fLastSwitchUsecs));
ProcessCurrent(cur_cycle_begin);
res = false;
}
}
// Cycle end
fEngineControl->CycleEnd(fClientTable);
return res;
}
/*
Client that finish *after* the callback date are considered late even if their output buffers may have been
correctly mixed in the time window: callbackUsecs <==> Read <==> Write.
*/
void JackEngine::CheckXRun(jack_time_t callback_usecs) // REVOIR les conditions de fin
{
for (int i = REAL_REFNUM; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client && client->GetClientControl()->fActive) {
JackClientTiming* timing = fGraphManager->GetClientTiming(i);
jack_client_state_t status = timing->fStatus;
jack_time_t finished_date = timing->fFinishedAt;
if (status != NotTriggered && status != Finished) {
jack_error("JackEngine::XRun: client = %s was not run: state = %ld", client->GetClientControl()->fName, status);
fChannel.Notify(ALL_CLIENTS, kXRunCallback, 0); // Notify all clients
}
if (status == Finished && (long)(finished_date - callback_usecs) > 0) {
jack_error("JackEngine::XRun: client %s finished after current callback", client->GetClientControl()->fName);
fChannel.Notify(ALL_CLIENTS, kXRunCallback, 0); // Notify all clients
}
}
}
}
//---------------
// Notifications
//---------------
void JackEngine::NotifyClient(int refnum, int event, int sync, int value1, int value2)
{
JackClientInterface* client = fClientTable[refnum];
// The client may be notified by the RT thread while closing
if (!client) {
jack_log("JackEngine::NotifyClient: client not available anymore");
} else if (client->GetClientControl()->fCallback[event]) {
if (client->ClientNotify(refnum, client->GetClientControl()->fName, event, sync, value1, value2) < 0)
jack_error("NotifyClient fails name = %s event = %ld = val1 = %ld val2 = %ld", client->GetClientControl()->fName, event, value1, value2);
} else {
jack_log("JackEngine::NotifyClient: no callback for event = %ld", event);
}
}
void JackEngine::NotifyClients(int event, int sync, int value1, int value2)
{
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client) {
if (client->GetClientControl()->fCallback[event]) {
if (client->ClientNotify(i, client->GetClientControl()->fName, event, sync, value1, value2) < 0)
jack_error("NotifyClient fails name = %s event = %ld = val1 = %ld val2 = %ld", client->GetClientControl()->fName, event, value1, value2);
} else {
jack_log("JackEngine::NotifyClients: no callback for event = %ld", event);
}
}
}
}
int JackEngine::NotifyAddClient(JackClientInterface* new_client, const char* name, int refnum)
{
// Notify existing clients of the new client and new client of existing clients.
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* old_client = fClientTable[i];
if (old_client) {
if (old_client->ClientNotify(refnum, name, kAddClient, true, 0, 0) < 0) {
jack_error("NotifyAddClient old_client fails name = %s", old_client->GetClientControl()->fName);
return -1;
}
if (new_client->ClientNotify(i, old_client->GetClientControl()->fName, kAddClient, true, 0, 0) < 0) {
jack_error("NotifyAddClient new_client fails name = %s", name);
return -1;
}
}
}
return 0;
}
void JackEngine::NotifyRemoveClient(const char* name, int refnum)
{
// Notify existing clients (including the one beeing suppressed) of the removed client
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client) {
client->ClientNotify(refnum, name, kRemoveClient, true, 0, 0);
}
}
}
// Coming from the driver
void JackEngine::NotifyXRun(jack_time_t callback_usecs, float delayed_usecs)
{
// Use the audio thread => request thread communication channel
fEngineControl->ResetFrameTime(callback_usecs);
fEngineControl->NotifyXRun(delayed_usecs);
fChannel.Notify(ALL_CLIENTS, kXRunCallback, 0);
}
void JackEngine::NotifyXRun(int refnum)
{
if (refnum == ALL_CLIENTS) {
NotifyClients(kXRunCallback, false, 0, 0);
} else {
NotifyClient(refnum, kXRunCallback, false, 0, 0);
}
}
void JackEngine::NotifyGraphReorder()
{
NotifyClients(kGraphOrderCallback, false, 0, 0);
}
void JackEngine::NotifyBufferSize(jack_nframes_t buffer_size)
{
NotifyClients(kBufferSizeCallback, true, buffer_size, 0);
}
void JackEngine::NotifySampleRate(jack_nframes_t sample_rate)
{
NotifyClients(kSampleRateCallback, true, sample_rate, 0);
}
void JackEngine::NotifyFreewheel(bool onoff)
{
fEngineControl->fRealTime = !onoff;
NotifyClients((onoff ? kStartFreewheelCallback : kStopFreewheelCallback), true, 0, 0);
}
void JackEngine::NotifyPortRegistation(jack_port_id_t port_index, bool onoff)
{
NotifyClients((onoff ? kPortRegistrationOnCallback : kPortRegistrationOffCallback), false, port_index, 0);
}
void JackEngine::NotifyPortRename(jack_port_id_t port)
{
NotifyClients(kPortRenameCallback, false, port, 0);
}
void JackEngine::NotifyPortConnect(jack_port_id_t src, jack_port_id_t dst, bool onoff)
{
NotifyClients((onoff ? kPortConnectCallback : kPortDisconnectCallback), false, src, dst);
}
void JackEngine::NotifyActivate(int refnum)
{
NotifyClient(refnum, kActivateClient, true, 0, 0);
}
//----------------------------
// Loadable client management
//----------------------------
int JackEngine::GetInternalClientName(int refnum, char* name_res)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
if (client) {
strncpy(name_res, client->GetClientControl()->fName, JACK_CLIENT_NAME_SIZE);
return 0;
} else {
return -1;
}
}
int JackEngine::InternalClientHandle(const char* client_name, int* status, int* int_ref)
{
// Clear status
*status = 0;
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client && dynamic_cast<JackLoadableInternalClient*>(client) && (strcmp(client->GetClientControl()->fName, client_name) == 0)) {
jack_log("InternalClientHandle found client name = %s ref = %ld", client_name, i);
*int_ref = i;
return 0;
}
}
*status |= (JackNoSuchClient | JackFailure);
return -1;
}
int JackEngine::InternalClientUnload(int refnum, int* status)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
if (client) {
int res = client->Close();
delete client;
*status = 0;
return res;
} else {
*status = (JackNoSuchClient | JackFailure);
return -1;
}
}
//-------------------
// Client management
//-------------------
int JackEngine::ClientCheck(const char* name, char* name_res, int protocol, int options, int* status)
{
// Clear status
*status = 0;
strcpy(name_res, name);
jack_log("Check protocol client %ld server = %ld", protocol, JACK_PROTOCOL_VERSION);
if (protocol != JACK_PROTOCOL_VERSION) {
*status |= (JackFailure | JackVersionError);
jack_error("JACK protocol mismatch (%d vs %d)", protocol, JACK_PROTOCOL_VERSION);
return -1;
}
if (ClientCheckName(name)) {
*status |= JackNameNotUnique;
if (options & JackUseExactName) {
jack_error("cannot create new client; %s already exists", name);
*status |= JackFailure;
return -1;
}
if (GenerateUniqueName(name_res)) {
*status |= JackFailure;
return -1;
}
}
return 0;
}
bool JackEngine::GenerateUniqueName(char* name)
{
int tens, ones;
int length = strlen(name);
if (length > JACK_CLIENT_NAME_SIZE - 4) {
jack_error("%s exists and is too long to make unique", name);
return true; /* failure */
}
/* generate a unique name by appending "-01".."-99" */
name[length++] = '-';
tens = length++;
ones = length++;
name[tens] = '0';
name[ones] = '1';
name[length] = '\0';
while (ClientCheckName(name)) {
if (name[ones] == '9') {
if (name[tens] == '9') {
jack_error("client %s has 99 extra instances already", name);
return true; /* give up */
}
name[tens]++;
name[ones] = '0';
} else {
name[ones]++;
}
}
return false;
}
bool JackEngine::ClientCheckName(const char* name)
{
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client && (strcmp(client->GetClientControl()->fName, name) == 0))
return true;
}
return false;
}
int JackEngine::GetClientPID(const char* name)
{
for (int i = 0; i < CLIENT_NUM; i++) {
JackClientInterface* client = fClientTable[i];
if (client && (strcmp(client->GetClientControl()->fName, name) == 0))
return client->GetClientControl()->fPID;
}
return 0;
}
// Used for external clients
int JackEngine::ClientExternalOpen(const char* name, int pid, int* ref, int* shared_engine, int* shared_client, int* shared_graph_manager)
{
jack_log("JackEngine::ClientOpen: name = %s ", name);
int refnum = AllocateRefnum();
if (refnum < 0) {
jack_error("No more refnum available");
return -1;
}
JackExternalClient* client = new JackExternalClient();
if (!fSynchroTable[refnum].Allocate(name, fEngineControl->fServerName, 0)) {
jack_error("Cannot allocate synchro");
goto error;
}
if (client->Open(name, pid, refnum, shared_client) < 0) {
jack_error("Cannot open client");
goto error;
}
if (!fSignal.TimedWait(DRIVER_OPEN_TIMEOUT * 1000000)) {
// Failure if RT thread is not running (problem with the driver...)
jack_error("Driver is not running");
goto error;
}
fClientTable[refnum] = client;
if (NotifyAddClient(client, name, refnum) < 0) {
jack_error("Cannot notify add client");
goto error;
}
fGraphManager->InitRefNum(refnum);
fEngineControl->ResetRollingUsecs();
*shared_engine = fEngineControl->GetShmIndex();
*shared_graph_manager = fGraphManager->GetShmIndex();
*ref = refnum;
return 0;
error:
// Cleanup...
fSynchroTable[refnum].Destroy();
fClientTable[refnum] = 0;
client->Close();
delete client;
return -1;
}
// Used for server driver clients
int JackEngine::ClientInternalOpen(const char* name, int* ref, JackEngineControl** shared_engine, JackGraphManager** shared_manager, JackClientInterface* client, bool wait)
{
jack_log("JackEngine::ClientInternalNew: name = %s", name);
int refnum = AllocateRefnum();
if (refnum < 0) {
jack_error("No more refnum available");
goto error;
}
if (!fSynchroTable[refnum].Allocate(name, fEngineControl->fServerName, 0)) {
jack_error("Cannot allocate synchro");
goto error;
}
if (wait && !fSignal.TimedWait(DRIVER_OPEN_TIMEOUT * 1000000)) {
// Failure if RT thread is not running (problem with the driver...)
jack_error("Driver is not running");
goto error;
}
fClientTable[refnum] = client;
if (NotifyAddClient(client, name, refnum) < 0) {
jack_error("Cannot notify add client");
goto error;
}
fGraphManager->InitRefNum(refnum);
fEngineControl->ResetRollingUsecs();
*shared_engine = fEngineControl;
*shared_manager = fGraphManager;
*ref = refnum;
return 0;
error:
// Cleanup...
fSynchroTable[refnum].Destroy();
fClientTable[refnum] = 0;
return -1;
}
// Used for external clients
int JackEngine::ClientExternalClose(int refnum)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
if (client) {
fEngineControl->fTransport.ResetTimebase(refnum);
int res = ClientCloseAux(refnum, client, true);
client->Close();
delete client;
return res;
} else {
return -1;
}
}
// Used for server internal clients or drivers when the RT thread is stopped
int JackEngine::ClientInternalClose(int refnum, bool wait)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
return (client) ? ClientCloseAux(refnum, client, wait) : -1;
}
int JackEngine::ClientCloseAux(int refnum, JackClientInterface* client, bool wait)
{
jack_log("JackEngine::ClientCloseAux ref = %ld", refnum);
// Unregister all ports ==> notifications are sent
jack_int_t ports[PORT_NUM_FOR_CLIENT];
int i;
fGraphManager->GetInputPorts(refnum, ports);
for (i = 0; (i < PORT_NUM_FOR_CLIENT) && (ports[i] != EMPTY) ; i++) {
PortUnRegister(refnum, ports[i]);
}
fGraphManager->GetOutputPorts(refnum, ports);
for (i = 0; (i < PORT_NUM_FOR_CLIENT) && (ports[i] != EMPTY) ; i++) {
PortUnRegister(refnum, ports[i]);
}
// Remove the client from the table
ReleaseRefnum(refnum);
// Remove all ports
fGraphManager->RemoveAllPorts(refnum);
// Wait until next cycle to be sure client is not used anymore
if (wait) {
if (!fSignal.TimedWait(fEngineControl->fTimeOutUsecs * 2)) { // Must wait at least until a switch occurs in Process, even in case of graph end failure
jack_error("JackEngine::ClientCloseAux wait error ref = %ld", refnum);
}
}
// Notify running clients
NotifyRemoveClient(client->GetClientControl()->fName, client->GetClientControl()->fRefNum);
// Cleanup...
fSynchroTable[refnum].Destroy();
fEngineControl->ResetRollingUsecs();
return 0;
}
int JackEngine::ClientActivate(int refnum, bool state)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
assert(fClientTable[refnum]);
jack_log("JackEngine::ClientActivate ref = %ld name = %s", refnum, client->GetClientControl()->fName);
if (state)
fGraphManager->Activate(refnum);
// Wait for graph state change to be effective
if (!fSignal.TimedWait(fEngineControl->fTimeOutUsecs * 10)) {
jack_error("JackEngine::ClientActivate wait error ref = %ld name = %s", refnum, client->GetClientControl()->fName);
return -1;
} else {
NotifyActivate(refnum);
return 0;
}
}
// May be called without client
int JackEngine::ClientDeactivate(int refnum)
{
AssertRefnum(refnum);
JackClientInterface* client = fClientTable[refnum];
if (client == NULL)
return -1;
jack_log("JackEngine::ClientDeactivate ref = %ld name = %s", refnum, client->GetClientControl()->fName);
// Disconnect all ports ==> notifications are sent
jack_int_t ports[PORT_NUM_FOR_CLIENT];
int i;
fGraphManager->GetInputPorts(refnum, ports);
for (i = 0; (i < PORT_NUM_FOR_CLIENT) && (ports[i] != EMPTY) ; i++) {
PortDisconnect(refnum, ports[i], ALL_PORTS);
}
fGraphManager->GetOutputPorts(refnum, ports);
for (i = 0; (i < PORT_NUM_FOR_CLIENT) && (ports[i] != EMPTY) ; i++) {
PortDisconnect(refnum, ports[i], ALL_PORTS);
}
fGraphManager->Deactivate(refnum);
fLastSwitchUsecs = 0; // Force switch to occur next cycle, even when called with "dead" clients
// Wait for graph state change to be effective
if (!fSignal.TimedWait(fEngineControl->fTimeOutUsecs * 10)) {
jack_error("JackEngine::ClientDeactivate wait error ref = %ld name = %s", refnum, client->GetClientControl()->fName);
return -1;
} else {
return 0;
}
}
//-----------------
// Port management
//-----------------
int JackEngine::PortRegister(int refnum, const char* name, const char *type, unsigned int flags, unsigned int buffer_size, unsigned int* port_index)
{
jack_log("JackEngine::PortRegister ref = %ld name = %s type = %s flags = %d buffer_size = %d", refnum, name, type, flags, buffer_size);
AssertRefnum(refnum);
assert(fClientTable[refnum]);
// Check if port name already exists
if (fGraphManager->GetPort(name) != NO_PORT) {
jack_error("port_name \"%s\" already exists", name);
return -1;
}
*port_index = fGraphManager->AllocatePort(refnum, name, type, (JackPortFlags)flags, fEngineControl->fBufferSize);
if (*port_index != NO_PORT) {
NotifyPortRegistation(*port_index, true);
return 0;
} else {
return -1;
}
}
int JackEngine::PortUnRegister(int refnum, jack_port_id_t port_index)
{
jack_log("JackEngine::PortUnRegister ref = %ld port_index = %ld", refnum, port_index);
AssertRefnum(refnum);
assert(fClientTable[refnum]);
// Disconnect port ==> notification is sent
PortDisconnect(refnum, port_index, ALL_PORTS);
if (fGraphManager->ReleasePort(refnum, port_index) == 0) {
NotifyPortRegistation(port_index, false);
return 0;
} else {
return -1;
}
}
int JackEngine::PortConnect(int refnum, const char* src, const char* dst)
{
jack_log("JackEngine::PortConnect src = %s dst = %s", src, dst);
jack_port_id_t port_src, port_dst;
return (fGraphManager->CheckPorts(src, dst, &port_src, &port_dst) < 0)
? -1
: PortConnect(refnum, port_src, port_dst);
}
int JackEngine::PortConnect(int refnum, jack_port_id_t src, jack_port_id_t dst)
{
jack_log("JackEngine::PortConnect src = %d dst = %d", src, dst);
AssertRefnum(refnum);
JackClientInterface* client;
int ref;
if (fGraphManager->CheckPorts(src, dst) < 0)
return -1;
ref = fGraphManager->GetOutputRefNum(src);
assert(ref >= 0);
client = fClientTable[ref];
assert(client);
if (!client->GetClientControl()->fActive) {
jack_error("Cannot connect ports owned by inactive clients:"
" \"%s\" is not active", client->GetClientControl()->fName);
return -1;
}
ref = fGraphManager->GetInputRefNum(dst);
assert(ref >= 0);
client = fClientTable[ref];
assert(client);
if (!client->GetClientControl()->fActive) {
jack_error("Cannot connect ports owned by inactive clients:"
" \"%s\" is not active", client->GetClientControl()->fName);
return -1;
}
int res = fGraphManager->Connect(src, dst);
if (res == 0)
NotifyPortConnect(src, dst, true);
return res;
}
int JackEngine::PortDisconnect(int refnum, const char* src, const char* dst)
{
jack_log("JackEngine::PortDisconnect src = %s dst = %s", src, dst);
AssertRefnum(refnum);
jack_port_id_t port_src, port_dst;
if (fGraphManager->CheckPorts(src, dst, &port_src, &port_dst) < 0) {
return -1;
} else if (fGraphManager->Disconnect(port_src, port_dst) == 0) {
NotifyPortConnect(port_src, port_dst, false);
return 0;
} else {
return -1;
}
}
int JackEngine::PortDisconnect(int refnum, jack_port_id_t src, jack_port_id_t dst)
{
jack_log("JackEngine::PortDisconnect src = %d dst = %d", src, dst);
AssertRefnum(refnum);
if (dst == ALL_PORTS) {
jack_int_t connections[CONNECTION_NUM_FOR_PORT];
fGraphManager->GetConnections(src, connections);
// Notifications
JackPort* port = fGraphManager->GetPort(src);
if (port->GetFlags() & JackPortIsOutput) {
for (int i = 0; (i < CONNECTION_NUM_FOR_PORT) && (connections[i] != EMPTY); i++) {
jack_log("NotifyPortConnect src = %ld dst = %ld false", src, connections[i]);
NotifyPortConnect(src, connections[i], false);
}
} else {
for (int i = 0; (i < CONNECTION_NUM_FOR_PORT) && (connections[i] != EMPTY); i++) {
jack_log("NotifyPortConnect src = %ld dst = %ld false", connections[i], src);
NotifyPortConnect(connections[i], src, false);
}
}
return fGraphManager->DisconnectAll(src);
} else if (fGraphManager->CheckPorts(src, dst) < 0) {
return -1;
} else if (fGraphManager->Disconnect(src, dst) == 0) {
// Notifications
NotifyPortConnect(src, dst, false);
return 0;
} else {
return -1;
}
}
int JackEngine::PortRename(int refnum, jack_port_id_t port, const char* name)
{
fGraphManager->GetPort(port)->SetName(name);
NotifyPortRename(port);
return 0;
}
} // end of namespace
|