jack2/common/JackMetadata.cpp at develop · jackaudio/jack2 · GitHub

History

820 lines (639 loc) · 21.1 KB

Raw

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

This program is free software; you can redistribute it and/or modify it

under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation; either version 2.1 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 Lesser General Public

License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this program; if not, write to the Free Software Foundation,

Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#include "JackMetadata.h"

#include "JackClient.h"

#include "JackTools.h"

#include <string.h>

#include <sys/stat.h>

#include <limits.h>

#define JACK_METADATA_PREFIX "http://jackaudio.org/metadata/"

LIB_EXPORT const char* JACK_METADATA_CONNECTED = JACK_METADATA_PREFIX "connected";

LIB_EXPORT const char* JACK_METADATA_EVENT_TYPES = JACK_METADATA_PREFIX "event-types";

LIB_EXPORT const char* JACK_METADATA_HARDWARE = JACK_METADATA_PREFIX "hardware";

LIB_EXPORT const char* JACK_METADATA_ICON_LARGE = JACK_METADATA_PREFIX "icon-large";

LIB_EXPORT const char* JACK_METADATA_ICON_NAME = JACK_METADATA_PREFIX "icon-name";

LIB_EXPORT const char* JACK_METADATA_ICON_SMALL = JACK_METADATA_PREFIX "icon-small";

LIB_EXPORT const char* JACK_METADATA_ORDER = JACK_METADATA_PREFIX "order";

LIB_EXPORT const char* JACK_METADATA_PORT_GROUP = JACK_METADATA_PREFIX "port-group";

LIB_EXPORT const char* JACK_METADATA_PRETTY_NAME = JACK_METADATA_PREFIX "pretty-name";

LIB_EXPORT const char* JACK_METADATA_SIGNAL_TYPE = JACK_METADATA_PREFIX "signal-type";

#undef JACK_METADATA_PREFIX

namespace Jack

{

JackMetadata::JackMetadata(bool isEngine)

#if HAVE_DB

: fDB(NULL), fDBenv(NULL), fIsEngine(isEngine)

#endif

{

PropertyInit();

}

JackMetadata::~JackMetadata()

{

#if HAVE_DB

char dbpath[PATH_MAX + 1];

if (fDB) {

fDB->close (fDB, 0);

fDB = NULL;

}

if (fDBenv) {

fDBenv->close (fDBenv, 0);

fDBenv = NULL;

}

if (fIsEngine)

{

// cleanup after libdb, nasty!

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/metadata.db", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.001", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.002", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.003", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

// remove our custom dir

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d", fDBFilesDir, JackTools::GetUID());

rmdir (dbpath);

}

#endif

}

int JackMetadata::PropertyInit()

{

#if HAVE_DB

int ret;

char dbpath[PATH_MAX + 1];

#ifdef WIN32

ret = GetTempPathA (PATH_MAX, fDBFilesDir);

if ((ret > PATH_MAX) || (ret == 0)) {

jack_error ("cannot get path for temp files");

return -1;

}

#else

strncpy (fDBFilesDir, jack_server_dir, PATH_MAX);

#endif

/* idempotent */

if (fDBenv) {

return 0;

}

if ((ret = db_env_create (&fDBenv, 0)) != 0) {

jack_error ("cannot initialize DB environment: %s\n", db_strerror (ret));

return -1;

}

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d", fDBFilesDir, JackTools::GetUID());

#ifdef WIN32

mkdir (dbpath);

#else

mkdir (dbpath, S_IRWXU | S_IRWXG);

#endif

if ((ret = fDBenv->open (fDBenv, dbpath, DB_CREATE | DB_INIT_LOCK | DB_INIT_MPOOL | DB_THREAD, 0)) != 0) {

#if defined(WIN32) || defined(__APPLE__)

// new versions of jack2 are built with HAVE_MIXED_SIZE_ADDRESSING, which induces this error, this is expected

if (ret == DB_VERSION_MISMATCH) {

jack_error ("Failed to open previous DB environment, trying again clean...");

// cleanup old stuff

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/metadata.db", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.001", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.002", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/__db.003", fDBFilesDir, JackTools::GetUID());

remove (dbpath);

// try again fresh

ret = fDBenv->open (fDBenv, dbpath, DB_CREATE | DB_INIT_LOCK | DB_INIT_MPOOL | DB_THREAD, 0);

}

if (ret != 0)

#endif

{

jack_error ("Cannot open DB environment: %s", db_strerror (ret));

fDBenv = NULL;

return -1;

}

if ((ret = db_create (&fDB, fDBenv, 0)) != 0) {

jack_error ("Cannot initialize metadata DB (%s)", db_strerror (ret));

fDBenv->close (fDBenv, 0);

fDBenv = NULL;

return -1;

}

snprintf (dbpath, sizeof(dbpath), "%s/jack_db-%d/metadata.db", fDBFilesDir, JackTools::GetUID());

if ((ret = fDB->open (fDB, NULL, dbpath, NULL, DB_HASH, DB_CREATE | DB_THREAD, 0666)) != 0) {

jack_error ("Cannot open metadata DB at %s: %s", dbpath, db_strerror (ret));

fDB->close (fDB, 0);

fDB = NULL;

fDBenv->close (fDBenv, 0);

fDBenv = NULL;

return -1;

}

return 0;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::PropertyChangeNotify(JackClient* client, jack_uuid_t subject, const char* key, jack_property_change_t change)

{

/* the engine passes in a NULL client when it removes metadata during port or client removal

if (client == NULL) {

return 0;

}

return client->PropertyChangeNotify(subject, key, change);

}

#if HAVE_DB

void JackMetadata::MakeKeyDbt(DBT* dbt, jack_uuid_t subject, const char* key)

{

char ustr[JACK_UUID_STRING_SIZE];

size_t len1, len2;

memset (dbt, 0, sizeof(DBT));

memset (ustr, 0, JACK_UUID_STRING_SIZE);

jack_uuid_unparse (subject, ustr);

len1 = JACK_UUID_STRING_SIZE;

len2 = strlen (key) + 1;

dbt->size = len1 + len2;

dbt->data = malloc (dbt->size);

memcpy (dbt->data, ustr, len1); // copy subject+null

memcpy ((char *)dbt->data + len1, key, len2); // copy key+null

}

#endif

int JackMetadata::SetProperty(JackClient* client, jack_uuid_t subject, const char* key, const char* value, const char* type)

{

#if HAVE_DB

DBT d_key;

DBT data;

int ret;

size_t len1, len2;

jack_property_change_t change;

if (!key || key[0] == '\0') {

jack_error ("empty key string for metadata not allowed");

return -1;

}

if (!value || value[0] == '\0') {

jack_error ("empty value string for metadata not allowed");

return -1;

}

if (PropertyInit()) {

return -1;

}

/* build a key */

MakeKeyDbt(&d_key, subject, key);

/* build data */

memset (&data, 0, sizeof(data));

len1 = strlen (value) + 1;

if (type && type[0] != '\0') {

len2 = strlen (type) + 1;

} else {

len2 = 0;

}

data.size = len1 + len2;

data.data = malloc (data.size);

memcpy (data.data, value, len1);

if (len2) {

memcpy ((char *)data.data + len1, type, len2);

}

if (fDB->exists (fDB, NULL, &d_key, 0) == DB_NOTFOUND) {

change = PropertyCreated;

} else {

change = PropertyChanged;

}

if ((ret = fDB->put (fDB, NULL, &d_key, &data, 0)) != 0) {

char ustr[JACK_UUID_STRING_SIZE];

jack_uuid_unparse (subject, ustr);

jack_error ("Cannot store metadata for %s/%s (%s)", ustr, key, db_strerror (ret));

if (d_key.size > 0) {

free (d_key.data);

}

if (data.size > 0) {

free (data.data);

}

return -1;

}

PropertyChangeNotify(client, subject, key, change);

if (d_key.size > 0) {

free (d_key.data);

}

if (data.size > 0) {

free (data.data);

}

return 0;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::GetProperty(jack_uuid_t subject, const char* key, char** value, char** type)

{

#if HAVE_DB

DBT d_key;

DBT data;

int ret;

size_t len1, len2;

if (key == NULL || key[0] == '\0') {

return -1;

}

if (PropertyInit()) {

return -1;

}

/* build a key */

MakeKeyDbt(&d_key, subject, key);

/* setup data DBT */

memset (&data, 0, sizeof(data));

data.flags = DB_DBT_MALLOC;

if ((ret = fDB->get (fDB, NULL, &d_key, &data, 0)) != 0) {

if (ret != DB_NOTFOUND) {

char ustr[JACK_UUID_STRING_SIZE];

jack_uuid_unparse (subject, ustr);

jack_error ("Cannot retrieve metadata for %s/%s (%s)", ustr, key, db_strerror (ret));

}

if (d_key.size > 0) {

free (d_key.data);

}

if (data.size > 0) {

free (data.data);

}

return -1;

}

/* result must have at least 1 char plus 1 null to be valid

(old rule was:

result must have at least 2 chars plus 2 nulls to be valid

)

if (data.size < 2) {

if (d_key.size > 0) {

free (d_key.data);

}

if (data.size > 0) {

free (data.data);

}

return -1;

}

len1 = strlen ((const char*)data.data) + 1;

(*value) = (char*)malloc (len1);

memcpy (*value, data.data, len1);

if (len1 < data.size) {

len2 = strlen ((const char*)data.data + len1) + 1;

(*type) = (char*)malloc (len2);

memcpy (*type, (const char *)data.data + len1, len2);

} else {

/* no type specified, assume default */

*type = NULL;

}

if (d_key.size > 0) {

free (d_key.data);

}

if (data.size > 0) {

free (data.data);

}

return 0;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::GetProperties(jack_uuid_t subject, jack_description_t* desc)

{

#if HAVE_DB

DBT key;

DBT data;

DBC* cursor;

int ret;

size_t len1, len2;

size_t cnt = 0;

char ustr[JACK_UUID_STRING_SIZE];

size_t props_size = 0;

jack_property_t* prop;

desc->properties = NULL;

desc->property_cnt = 0;

memset (ustr, 0, JACK_UUID_STRING_SIZE);

jack_uuid_unparse (subject, ustr);

if (PropertyInit()) {

return -1;

}

if ((ret = fDB->cursor (fDB, NULL, &cursor, 0)) != 0) {

jack_error ("Cannot create cursor for metadata search (%s)", db_strerror (ret));

return -1;

}

memset (&key, 0, sizeof(key));

memset (&data, 0, sizeof(data));

data.flags = DB_DBT_MALLOC;

while ((ret = cursor->get (cursor, &key, &data, DB_NEXT)) == 0) {

/* require 2 extra chars (data+null) for key,

which is composed of UUID str plus a key name

if (key.size < JACK_UUID_STRING_SIZE + 2) {

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

if (memcmp (ustr, key.data, JACK_UUID_STRING_SIZE) != 0) {

/* not relevant */

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

/* result must have at least 1 char plus 1 null to be valid

(old rule was:

result must have at least 2 chars plus 2 nulls to be valid

)

if (data.size < 2) {

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

/* realloc array if necessary */

if (cnt == props_size) {

if (props_size == 0) {

props_size = 8; /* a rough guess at a likely upper bound for the number of properties */

} else {

props_size *= 2;

}

desc->properties = (jack_property_t*)realloc (desc->properties, sizeof(jack_property_t) * props_size);

}

prop = &desc->properties[cnt];

/* store UUID/subject */

jack_uuid_copy (&desc->subject, subject);

/* copy key (without leading UUID as subject */

len1 = key.size - JACK_UUID_STRING_SIZE;

prop->key = (char*)malloc (len1);

memcpy ((char*)prop->key, (const char *)key.data + JACK_UUID_STRING_SIZE, len1);

/* copy data (which contains 1 or 2 null terminated strings, the value

and optionally a MIME type.

len1 = strlen ((const char*)data.data) + 1;

prop->data = (char*)malloc (len1);

memcpy ((char*)prop->data, data.data, len1);

if (len1 < data.size) {

len2 = strlen ((const char *)data.data + len1) + 1;

prop->type = (char*)malloc (len2);

memcpy ((char*)prop->type, (const char *)data.data + len1, len2);

} else {

/* no type specified, assume default */

prop->type = NULL;

}

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

++cnt;

}

cursor->close (cursor);

desc->property_cnt = cnt;

return cnt;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::GetAllProperties(jack_description_t** descriptions)

{

#if HAVE_DB

DBT key;

DBT data;

DBC* cursor;

int ret;

size_t dcnt = 0;

size_t dsize = 0;

size_t n = 0;

jack_description_t* desc = NULL;

jack_uuid_t uuid = JACK_UUID_EMPTY_INITIALIZER;

jack_description_t* current_desc = NULL;

jack_property_t* current_prop = NULL;

size_t len1, len2;

if (PropertyInit()) {

return -1;

}

if ((ret = fDB->cursor (fDB, NULL, &cursor, 0)) != 0) {

jack_error ("Cannot create cursor for metadata search (%s)", db_strerror (ret));

return -1;

}

memset (&key, 0, sizeof(key));

memset (&data, 0, sizeof(data));

data.flags = DB_DBT_MALLOC;

dsize = 8; /* initial guess at number of descriptions we need */

dcnt = 0;

desc = (jack_description_t*)malloc (dsize * sizeof(jack_description_t));

while ((ret = cursor->get (cursor, &key, &data, DB_NEXT)) == 0) {

/* require 2 extra chars (data+null) for key,

which is composed of UUID str plus a key name

if (key.size < JACK_UUID_STRING_SIZE + 2) {

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

if (jack_uuid_parse ((const char *)key.data, &uuid) != 0) {

continue;

}

/* do we have an existing description for this UUID */

for (n = 0; n < dcnt; ++n) {

if (jack_uuid_compare (uuid, desc[n].subject) == 0) {

break;

}

if (n == dcnt) {

/* we do not have an existing description, so grow the array */

if (dcnt == dsize) {

dsize *= 2;

desc = (jack_description_t*)realloc (desc, sizeof(jack_description_t) * dsize);

}

/* initialize */

desc[n].property_size = 0;

desc[n].property_cnt = 0;

desc[n].properties = NULL;

/* set up UUID */

jack_uuid_copy (&desc[n].subject, uuid);

dcnt++;

}

current_desc = &desc[n];

/* see if there is room for the new property or if we need to realloc

if (current_desc->property_cnt == current_desc->property_size) {

if (current_desc->property_size == 0) {

current_desc->property_size = 8;

} else {

current_desc->property_size *= 2;

}

current_desc->properties = (jack_property_t*)realloc (current_desc->properties, sizeof(jack_property_t) * current_desc->property_size);

}

current_prop = &current_desc->properties[current_desc->property_cnt++];

/* copy key (without leading UUID) */

len1 = key.size - JACK_UUID_STRING_SIZE;

current_prop->key = (char*)malloc (len1);

memcpy ((char*)current_prop->key, (const char *)key.data + JACK_UUID_STRING_SIZE, len1);

/* copy data (which contains 1 or 2 null terminated strings, the value

and optionally a MIME type.

len1 = strlen ((const char *)data.data) + 1;

current_prop->data = (char*)malloc (len1);

memcpy ((char*)current_prop->data, data.data, len1);

if (len1 < data.size) {

len2 = strlen ((const char *)data.data + len1) + 1;

current_prop->type = (char*)malloc (len2);

memcpy ((char*)current_prop->type, (const char *)data.data + len1, len2);

} else {

/* no type specified, assume default */

current_prop->type = NULL;

}

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

cursor->close (cursor);

(*descriptions) = desc;

return dcnt;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::GetDescription(jack_uuid_t subject, jack_description_t* desc)

{

return 0;

}

int JackMetadata::GetAllDescriptions(jack_description_t** descs)

{

return 0;

}

void JackMetadata::FreeDescription(jack_description_t* desc, int free_actual_description_too)

{

uint32_t n;

for (n = 0; n < desc->property_cnt; ++n) {

free ((char*)desc->properties[n].key);

free ((char*)desc->properties[n].data);

if (desc->properties[n].type) {

free ((char*)desc->properties[n].type);

}

free (desc->properties);

if (free_actual_description_too) {

free (desc);

}

int JackMetadata::RemoveProperty(JackClient* client, jack_uuid_t subject, const char* key)

{

#if HAVE_DB

DBT d_key;

int ret;

if (PropertyInit()) {

return -1;

}

MakeKeyDbt(&d_key, subject, key);

if ((ret = fDB->del (fDB, NULL, &d_key, 0)) != 0) {

jack_error ("Cannot delete key %s (%s)", key, db_strerror (ret));

if (d_key.size > 0) {

free (d_key.data);

}

return -1;

}

PropertyChangeNotify(client, subject, key, PropertyDeleted);

if (d_key.size > 0) {

free (d_key.data);

}

return 0;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::RemoveProperties(JackClient* client, jack_uuid_t subject)

{

#if HAVE_DB

DBT key;

DBT data;

DBC* cursor;

int ret;

char ustr[JACK_UUID_STRING_SIZE];

int retval = 0;

uint32_t cnt = 0;

memset (ustr, 0, JACK_UUID_STRING_SIZE);

jack_uuid_unparse (subject, ustr);

if (PropertyInit() || fDB == NULL) {

return -1;

}

if ((ret = fDB->cursor (fDB, NULL, &cursor, 0)) != 0) {

jack_error ("Cannot create cursor for metadata search (%s)", db_strerror (ret));

return -1;

}

memset (&key, 0, sizeof(key));

memset (&data, 0, sizeof(data));

data.flags = DB_DBT_MALLOC;

while ((ret = cursor->get (cursor, &key, &data, DB_NEXT)) == 0) {

/* require 2 extra chars (data+null) for key,

which is composed of UUID str plus a key name

if (key.size < JACK_UUID_STRING_SIZE + 2) {

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

if (memcmp (ustr, key.data, JACK_UUID_STRING_SIZE) != 0) {

/* not relevant */

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

continue;

}

if ((ret = cursor->del (cursor, 0)) != 0) {

jack_error ("cannot delete property (%s)", db_strerror (ret));

/* don't return -1 here since this would leave things

even more inconsistent. wait till the cursor is finished

retval = -1;

}

cnt++;

/* if (key.size > 0) free(key.data); */

if (data.size > 0) {

free (data.data);

}

cursor->close (cursor);

if (cnt) {

PropertyChangeNotify(client, subject, NULL, PropertyDeleted);

}

if (retval) {

return -1;

}

return cnt;

#else // !HAVE_DB

return -1;

#endif

}

int JackMetadata::RemoveAllProperties(JackClient* client)

{

#if HAVE_DB

int ret;

jack_uuid_t empty_uuid = JACK_UUID_EMPTY_INITIALIZER;

if (PropertyInit()) {

return -1;

}

if ((ret = fDB->truncate (fDB, NULL, NULL, 0)) != 0) {

jack_error ("Cannot clear properties (%s)", db_strerror (ret));

return -1;

}

PropertyChangeNotify(client, empty_uuid, NULL, PropertyDeleted);

return 0;

#else // !HAVE_DB

return -1;

#endif

}

} // end of namespace

jack2/common/JackMetadata.cpp at develop · jackaudio/jack2 · GitHub

Uh oh!

Expand file tree

Breadcrumbs

JackMetadata.cpp

Latest commit

History

Breadcrumbs

JackMetadata.cpp

File metadata and controls