annotate src/vamp-hostsdk/PluginLoader.cpp @ 425:6b2567f365b0 vampipe

Docs
author Chris Cannam
date Thu, 12 May 2016 14:43:10 +0100
parents 8c45dee08a95
children 5502a06537f6
rev   line source
cannam@233 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
cannam@233 2
cannam@233 3 /*
cannam@233 4 Vamp
cannam@233 5
cannam@233 6 An API for audio analysis and feature extraction plugins.
cannam@233 7
cannam@233 8 Centre for Digital Music, Queen Mary, University of London.
Chris@423 9 Copyright 2006-2016 Chris Cannam and QMUL.
cannam@233 10
cannam@233 11 Permission is hereby granted, free of charge, to any person
cannam@233 12 obtaining a copy of this software and associated documentation
cannam@233 13 files (the "Software"), to deal in the Software without
cannam@233 14 restriction, including without limitation the rights to use, copy,
cannam@233 15 modify, merge, publish, distribute, sublicense, and/or sell copies
cannam@233 16 of the Software, and to permit persons to whom the Software is
cannam@233 17 furnished to do so, subject to the following conditions:
cannam@233 18
cannam@233 19 The above copyright notice and this permission notice shall be
cannam@233 20 included in all copies or substantial portions of the Software.
cannam@233 21
cannam@233 22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
cannam@233 23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
cannam@233 24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
cannam@233 25 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
cannam@233 26 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
cannam@233 27 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
cannam@233 28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cannam@233 29
cannam@233 30 Except as contained in this notice, the names of the Centre for
cannam@233 31 Digital Music; Queen Mary, University of London; and Chris Cannam
cannam@233 32 shall not be used in advertising or otherwise to promote the sale,
cannam@233 33 use or other dealings in this Software without prior written
cannam@233 34 authorization.
cannam@233 35 */
cannam@233 36
cannam@233 37 #include <vamp-hostsdk/PluginLoader.h>
cannam@233 38 #include <vamp-hostsdk/PluginInputDomainAdapter.h>
cannam@233 39 #include <vamp-hostsdk/PluginChannelAdapter.h>
cannam@233 40 #include <vamp-hostsdk/PluginBufferingAdapter.h>
Chris@390 41 #include <vamp-hostsdk/PluginHostAdapter.h>
Chris@390 42
Chris@390 43 #include <vamp/vamp.h>
Chris@390 44
Chris@390 45 #include "Files.h"
cannam@233 46
cannam@233 47 #include <fstream>
cannam@233 48
cannam@233 49 using namespace std;
cannam@233 50
cannam@263 51 _VAMP_SDK_HOSTSPACE_BEGIN(PluginLoader.cpp)
cannam@263 52
cannam@233 53 namespace Vamp {
cannam@233 54
cannam@233 55 namespace HostExt {
cannam@233 56
cannam@233 57 class PluginLoader::Impl
cannam@233 58 {
cannam@233 59 public:
cannam@233 60 Impl();
cannam@233 61 virtual ~Impl();
cannam@233 62
cannam@233 63 PluginKeyList listPlugins();
cannam@233 64
cannam@233 65 Plugin *loadPlugin(PluginKey key,
cannam@233 66 float inputSampleRate,
cannam@233 67 int adapterFlags);
cannam@233 68
Chris@423 69 LoadResponse loadPlugin(LoadRequest req);
Chris@423 70
Chris@423 71 Plugin::OutputList configurePlugin(Plugin *plugin, PluginConfiguration config);
Chris@423 72
cannam@233 73 PluginKey composePluginKey(string libraryName, string identifier);
cannam@233 74
cannam@233 75 PluginCategoryHierarchy getPluginCategory(PluginKey key);
cannam@233 76
cannam@233 77 string getLibraryPathForPlugin(PluginKey key);
cannam@233 78
cannam@233 79 static void setInstanceToClean(PluginLoader *instance);
cannam@233 80
cannam@233 81 protected:
cannam@233 82 class PluginDeletionNotifyAdapter : public PluginWrapper {
cannam@233 83 public:
cannam@233 84 PluginDeletionNotifyAdapter(Plugin *plugin, Impl *loader);
cannam@233 85 virtual ~PluginDeletionNotifyAdapter();
cannam@233 86 protected:
cannam@233 87 Impl *m_loader;
cannam@233 88 };
cannam@233 89
cannam@233 90 class InstanceCleaner {
cannam@233 91 public:
cannam@233 92 InstanceCleaner() : m_instance(0) { }
cannam@233 93 ~InstanceCleaner() { delete m_instance; }
cannam@233 94 void setInstance(PluginLoader *instance) { m_instance = instance; }
cannam@233 95 protected:
cannam@233 96 PluginLoader *m_instance;
cannam@233 97 };
cannam@233 98
cannam@233 99 virtual void pluginDeleted(PluginDeletionNotifyAdapter *adapter);
cannam@233 100
cannam@233 101 map<PluginKey, string> m_pluginLibraryNameMap;
cannam@233 102 bool m_allPluginsEnumerated;
cannam@233 103 void enumeratePlugins(PluginKey forPlugin = "");
cannam@233 104
cannam@233 105 map<PluginKey, PluginCategoryHierarchy> m_taxonomy;
cannam@233 106 void generateTaxonomy();
cannam@233 107
cannam@233 108 map<Plugin *, void *> m_pluginLibraryHandleMap;
cannam@233 109
cannam@233 110 bool decomposePluginKey(PluginKey key,
cannam@233 111 string &libraryName, string &identifier);
cannam@233 112
cannam@233 113 static InstanceCleaner m_cleaner;
cannam@233 114 };
cannam@233 115
cannam@233 116 PluginLoader *
cannam@233 117 PluginLoader::m_instance = 0;
cannam@233 118
cannam@233 119 PluginLoader::Impl::InstanceCleaner
cannam@233 120 PluginLoader::Impl::m_cleaner;
cannam@233 121
cannam@233 122 PluginLoader::PluginLoader()
cannam@233 123 {
cannam@233 124 m_impl = new Impl();
cannam@233 125 }
cannam@233 126
cannam@233 127 PluginLoader::~PluginLoader()
cannam@233 128 {
cannam@233 129 delete m_impl;
cannam@233 130 }
cannam@233 131
cannam@233 132 PluginLoader *
cannam@233 133 PluginLoader::getInstance()
cannam@233 134 {
cannam@233 135 if (!m_instance) {
cannam@233 136 // The cleaner doesn't own the instance, because we leave the
cannam@233 137 // instance pointer in the base class for binary backwards
cannam@233 138 // compatibility reasons and to avoid waste
cannam@233 139 m_instance = new PluginLoader();
cannam@233 140 Impl::setInstanceToClean(m_instance);
cannam@233 141 }
cannam@233 142 return m_instance;
cannam@233 143 }
cannam@233 144
cannam@233 145 vector<PluginLoader::PluginKey>
cannam@233 146 PluginLoader::listPlugins()
cannam@233 147 {
cannam@233 148 return m_impl->listPlugins();
cannam@233 149 }
cannam@233 150
cannam@233 151 Plugin *
cannam@233 152 PluginLoader::loadPlugin(PluginKey key,
cannam@233 153 float inputSampleRate,
cannam@233 154 int adapterFlags)
cannam@233 155 {
cannam@233 156 return m_impl->loadPlugin(key, inputSampleRate, adapterFlags);
cannam@233 157 }
cannam@233 158
Chris@423 159 LoadResponse
Chris@423 160 PluginLoader::loadPlugin(LoadRequest req)
Chris@423 161 {
Chris@423 162 return m_impl->loadPlugin(req);
Chris@423 163 }
Chris@423 164
Chris@423 165 Plugin::OutputList
Chris@423 166 PluginLoader::configurePlugin(Plugin *plugin, PluginConfiguration config)
Chris@423 167 {
Chris@423 168 return m_impl->configurePlugin(plugin, config);
Chris@423 169 }
Chris@423 170
cannam@233 171 PluginLoader::PluginKey
cannam@233 172 PluginLoader::composePluginKey(string libraryName, string identifier)
cannam@233 173 {
cannam@233 174 return m_impl->composePluginKey(libraryName, identifier);
cannam@233 175 }
cannam@233 176
cannam@233 177 PluginLoader::PluginCategoryHierarchy
cannam@233 178 PluginLoader::getPluginCategory(PluginKey key)
cannam@233 179 {
cannam@233 180 return m_impl->getPluginCategory(key);
cannam@233 181 }
cannam@233 182
cannam@233 183 string
cannam@233 184 PluginLoader::getLibraryPathForPlugin(PluginKey key)
cannam@233 185 {
cannam@233 186 return m_impl->getLibraryPathForPlugin(key);
cannam@233 187 }
cannam@233 188
cannam@233 189 PluginLoader::Impl::Impl() :
cannam@233 190 m_allPluginsEnumerated(false)
cannam@233 191 {
cannam@233 192 }
cannam@233 193
cannam@233 194 PluginLoader::Impl::~Impl()
cannam@233 195 {
cannam@233 196 }
cannam@233 197
cannam@233 198 void
cannam@233 199 PluginLoader::Impl::setInstanceToClean(PluginLoader *instance)
cannam@233 200 {
cannam@233 201 m_cleaner.setInstance(instance);
cannam@233 202 }
cannam@233 203
cannam@233 204 vector<PluginLoader::PluginKey>
cannam@233 205 PluginLoader::Impl::listPlugins()
cannam@233 206 {
cannam@233 207 if (!m_allPluginsEnumerated) enumeratePlugins();
cannam@233 208
cannam@233 209 vector<PluginKey> plugins;
cannam@233 210 for (map<PluginKey, string>::iterator mi = m_pluginLibraryNameMap.begin();
cannam@233 211 mi != m_pluginLibraryNameMap.end(); ++mi) {
cannam@233 212 plugins.push_back(mi->first);
cannam@233 213 }
cannam@233 214
cannam@233 215 return plugins;
cannam@233 216 }
cannam@233 217
cannam@233 218 void
cannam@233 219 PluginLoader::Impl::enumeratePlugins(PluginKey forPlugin)
cannam@233 220 {
cannam@233 221 string libraryName, identifier;
Chris@390 222 vector<string> fullPaths;
Chris@390 223
cannam@233 224 if (forPlugin != "") {
cannam@233 225 if (!decomposePluginKey(forPlugin, libraryName, identifier)) {
cannam@233 226 std::cerr << "WARNING: Vamp::HostExt::PluginLoader: Invalid plugin key \""
cannam@233 227 << forPlugin << "\" in enumerate" << std::endl;
cannam@233 228 return;
cannam@233 229 }
Chris@390 230 fullPaths = Files::listLibraryFilesMatching(libraryName);
Chris@390 231 } else {
Chris@390 232 fullPaths = Files::listLibraryFiles();
cannam@233 233 }
cannam@233 234
Chris@390 235 for (size_t i = 0; i < fullPaths.size(); ++i) {
cannam@233 236
Chris@390 237 string fullPath = fullPaths[i];
Chris@390 238 void *handle = Files::loadLibrary(fullPath);
Chris@390 239 if (!handle) continue;
cannam@233 240
Chris@390 241 VampGetPluginDescriptorFunction fn =
Chris@390 242 (VampGetPluginDescriptorFunction)Files::lookupInLibrary
Chris@390 243 (handle, "vampGetPluginDescriptor");
cannam@233 244
Chris@390 245 if (!fn) {
Chris@390 246 if (forPlugin != "") {
Chris@390 247 cerr << "Vamp::HostExt::PluginLoader: No vampGetPluginDescriptor function found in library \""
cannam@295 248 << fullPath << "\"" << endl;
cannam@295 249 }
Chris@390 250 Files::unloadLibrary(handle);
Chris@390 251 continue;
Chris@390 252 }
cannam@233 253
Chris@390 254 int index = 0;
Chris@390 255 const VampPluginDescriptor *descriptor = 0;
Chris@390 256 bool found = false;
Chris@390 257
Chris@390 258 while ((descriptor = fn(VAMP_API_VERSION, index))) {
Chris@390 259 ++index;
Chris@390 260 if (identifier != "") {
Chris@390 261 if (descriptor->identifier != identifier) continue;
Chris@390 262 }
Chris@390 263 found = true;
Chris@390 264 PluginKey key = composePluginKey(fullPath, descriptor->identifier);
Chris@390 265 // std::cerr << "enumerate: " << key << " (path: " << fullPath << ")" << std::endl;
Chris@390 266 if (m_pluginLibraryNameMap.find(key) ==
Chris@390 267 m_pluginLibraryNameMap.end()) {
Chris@390 268 m_pluginLibraryNameMap[key] = fullPath;
Chris@390 269 }
cannam@233 270 }
Chris@390 271
Chris@390 272 if (!found && forPlugin != "") {
Chris@390 273 cerr << "Vamp::HostExt::PluginLoader: Plugin \""
Chris@390 274 << identifier << "\" not found in library \""
Chris@390 275 << fullPath << "\"" << endl;
Chris@390 276 }
Chris@390 277
Chris@390 278 Files::unloadLibrary(handle);
cannam@233 279 }
cannam@233 280
cannam@233 281 if (forPlugin == "") m_allPluginsEnumerated = true;
cannam@233 282 }
cannam@233 283
cannam@233 284 PluginLoader::PluginKey
cannam@233 285 PluginLoader::Impl::composePluginKey(string libraryName, string identifier)
cannam@233 286 {
Chris@390 287 string basename = Files::lcBasename(libraryName);
cannam@233 288 return basename + ":" + identifier;
cannam@233 289 }
cannam@233 290
cannam@233 291 bool
cannam@233 292 PluginLoader::Impl::decomposePluginKey(PluginKey key,
cannam@233 293 string &libraryName,
cannam@233 294 string &identifier)
cannam@233 295 {
cannam@233 296 string::size_type ki = key.find(':');
cannam@233 297 if (ki == string::npos) {
cannam@233 298 return false;
cannam@233 299 }
cannam@233 300
cannam@233 301 libraryName = key.substr(0, ki);
cannam@233 302 identifier = key.substr(ki + 1);
cannam@233 303 return true;
cannam@233 304 }
cannam@233 305
cannam@233 306 PluginLoader::PluginCategoryHierarchy
cannam@233 307 PluginLoader::Impl::getPluginCategory(PluginKey plugin)
cannam@233 308 {
cannam@233 309 if (m_taxonomy.empty()) generateTaxonomy();
cannam@233 310 if (m_taxonomy.find(plugin) == m_taxonomy.end()) {
cannam@233 311 return PluginCategoryHierarchy();
cannam@233 312 }
cannam@233 313 return m_taxonomy[plugin];
cannam@233 314 }
cannam@233 315
cannam@233 316 string
cannam@233 317 PluginLoader::Impl::getLibraryPathForPlugin(PluginKey plugin)
cannam@233 318 {
cannam@233 319 if (m_pluginLibraryNameMap.find(plugin) == m_pluginLibraryNameMap.end()) {
cannam@233 320 if (m_allPluginsEnumerated) return "";
cannam@233 321 enumeratePlugins(plugin);
cannam@233 322 }
cannam@233 323 if (m_pluginLibraryNameMap.find(plugin) == m_pluginLibraryNameMap.end()) {
cannam@233 324 return "";
cannam@233 325 }
cannam@233 326 return m_pluginLibraryNameMap[plugin];
cannam@233 327 }
cannam@233 328
cannam@233 329 Plugin *
cannam@233 330 PluginLoader::Impl::loadPlugin(PluginKey key,
cannam@233 331 float inputSampleRate, int adapterFlags)
cannam@233 332 {
cannam@233 333 string libname, identifier;
cannam@233 334 if (!decomposePluginKey(key, libname, identifier)) {
cannam@233 335 std::cerr << "Vamp::HostExt::PluginLoader: Invalid plugin key \""
cannam@233 336 << key << "\" in loadPlugin" << std::endl;
cannam@233 337 return 0;
cannam@233 338 }
cannam@233 339
cannam@233 340 string fullPath = getLibraryPathForPlugin(key);
cannam@293 341 if (fullPath == "") {
cannam@295 342 std::cerr << "Vamp::HostExt::PluginLoader: No library found in Vamp path for plugin \"" << key << "\"" << std::endl;
cannam@293 343 return 0;
cannam@293 344 }
cannam@233 345
Chris@390 346 void *handle = Files::loadLibrary(fullPath);
cannam@233 347 if (!handle) return 0;
cannam@233 348
cannam@233 349 VampGetPluginDescriptorFunction fn =
Chris@390 350 (VampGetPluginDescriptorFunction)Files::lookupInLibrary
cannam@233 351 (handle, "vampGetPluginDescriptor");
cannam@233 352
cannam@233 353 if (!fn) {
cannam@293 354 cerr << "Vamp::HostExt::PluginLoader: No vampGetPluginDescriptor function found in library \""
cannam@293 355 << fullPath << "\"" << endl;
Chris@390 356 Files::unloadLibrary(handle);
cannam@233 357 return 0;
cannam@233 358 }
cannam@233 359
cannam@233 360 int index = 0;
cannam@233 361 const VampPluginDescriptor *descriptor = 0;
cannam@233 362
cannam@233 363 while ((descriptor = fn(VAMP_API_VERSION, index))) {
cannam@233 364
cannam@233 365 if (string(descriptor->identifier) == identifier) {
cannam@233 366
cannam@233 367 Vamp::PluginHostAdapter *plugin =
cannam@233 368 new Vamp::PluginHostAdapter(descriptor, inputSampleRate);
cannam@233 369
cannam@233 370 Plugin *adapter = new PluginDeletionNotifyAdapter(plugin, this);
cannam@233 371
cannam@233 372 m_pluginLibraryHandleMap[adapter] = handle;
cannam@233 373
cannam@233 374 if (adapterFlags & ADAPT_INPUT_DOMAIN) {
cannam@233 375 if (adapter->getInputDomain() == Plugin::FrequencyDomain) {
cannam@233 376 adapter = new PluginInputDomainAdapter(adapter);
cannam@233 377 }
cannam@233 378 }
cannam@233 379
cannam@233 380 if (adapterFlags & ADAPT_BUFFER_SIZE) {
cannam@233 381 adapter = new PluginBufferingAdapter(adapter);
cannam@233 382 }
cannam@233 383
cannam@233 384 if (adapterFlags & ADAPT_CHANNEL_COUNT) {
cannam@233 385 adapter = new PluginChannelAdapter(adapter);
cannam@233 386 }
cannam@233 387
cannam@233 388 return adapter;
cannam@233 389 }
cannam@233 390
cannam@233 391 ++index;
cannam@233 392 }
cannam@233 393
cannam@233 394 cerr << "Vamp::HostExt::PluginLoader: Plugin \""
cannam@233 395 << identifier << "\" not found in library \""
cannam@233 396 << fullPath << "\"" << endl;
cannam@233 397
cannam@233 398 return 0;
cannam@233 399 }
cannam@233 400
Chris@423 401 LoadResponse
Chris@423 402 PluginLoader::Impl::loadPlugin(LoadRequest req)
Chris@423 403 {
Chris@423 404 Plugin *plugin = loadPlugin(req.pluginKey,
Chris@423 405 req.inputSampleRate,
Chris@423 406 req.adapterFlags);
Chris@423 407 LoadResponse response;
Chris@425 408 response.plugin = plugin;
Chris@423 409 if (!plugin) return response;
Chris@423 410
Chris@423 411 response.plugin = plugin;
Chris@423 412 response.staticData = PluginStaticData::fromPlugin
Chris@423 413 (req.pluginKey,
Chris@423 414 getPluginCategory(req.pluginKey),
Chris@423 415 plugin);
Chris@423 416
Chris@423 417 int defaultChannels = 0;
Chris@423 418 if (plugin->getMinChannelCount() == plugin->getMaxChannelCount()) {
Chris@423 419 defaultChannels = plugin->getMinChannelCount();
Chris@423 420 }
Chris@423 421
Chris@423 422 response.defaultConfiguration = PluginConfiguration::fromPlugin
Chris@423 423 (plugin,
Chris@423 424 defaultChannels,
Chris@423 425 plugin->getPreferredStepSize(),
Chris@423 426 plugin->getPreferredBlockSize());
Chris@423 427
Chris@423 428 return response;
Chris@423 429 }
Chris@423 430
Chris@423 431 Plugin::OutputList
Chris@423 432 PluginLoader::Impl::configurePlugin(Plugin *plugin, PluginConfiguration config)
Chris@423 433 {
Chris@423 434 for (PluginConfiguration::ParameterMap::const_iterator i =
Chris@423 435 config.parameterValues.begin();
Chris@423 436 i != config.parameterValues.end(); ++i) {
Chris@423 437 plugin->setParameter(i->first, i->second);
Chris@423 438 }
Chris@423 439
Chris@423 440 if (config.currentProgram != "") {
Chris@423 441 plugin->selectProgram(config.currentProgram);
Chris@423 442 }
Chris@423 443
Chris@423 444 if (plugin->initialise(config.channelCount,
Chris@423 445 config.stepSize,
Chris@423 446 config.blockSize)) {
Chris@423 447 return plugin->getOutputDescriptors();
Chris@423 448 } else {
Chris@423 449 return Plugin::OutputList();
Chris@423 450 }
Chris@423 451 }
Chris@423 452
cannam@233 453 void
cannam@233 454 PluginLoader::Impl::generateTaxonomy()
cannam@233 455 {
cannam@233 456 // cerr << "PluginLoader::Impl::generateTaxonomy" << endl;
cannam@233 457
cannam@233 458 vector<string> path = PluginHostAdapter::getPluginPath();
cannam@233 459 string libfragment = "/lib/";
cannam@233 460 vector<string> catpath;
cannam@233 461
cannam@233 462 string suffix = "cat";
cannam@233 463
cannam@233 464 for (vector<string>::iterator i = path.begin();
cannam@233 465 i != path.end(); ++i) {
cannam@233 466
cannam@233 467 // It doesn't matter that we're using literal forward-slash in
cannam@233 468 // this bit, as it's only relevant if the path contains
cannam@233 469 // "/lib/", which is only meaningful and only plausible on
cannam@233 470 // systems with forward-slash delimiters
cannam@233 471
cannam@233 472 string dir = *i;
cannam@233 473 string::size_type li = dir.find(libfragment);
cannam@233 474
cannam@233 475 if (li != string::npos) {
cannam@233 476 catpath.push_back
cannam@233 477 (dir.substr(0, li)
cannam@233 478 + "/share/"
cannam@233 479 + dir.substr(li + libfragment.length()));
cannam@233 480 }
cannam@233 481
cannam@233 482 catpath.push_back(dir);
cannam@233 483 }
cannam@233 484
cannam@233 485 char buffer[1024];
cannam@233 486
cannam@233 487 for (vector<string>::iterator i = catpath.begin();
cannam@233 488 i != catpath.end(); ++i) {
cannam@233 489
Chris@390 490 vector<string> files = Files::listFiles(*i, suffix);
cannam@233 491
cannam@233 492 for (vector<string>::iterator fi = files.begin();
cannam@233 493 fi != files.end(); ++fi) {
cannam@233 494
Chris@390 495 string filepath = Files::splicePath(*i, *fi);
cannam@233 496 ifstream is(filepath.c_str(), ifstream::in | ifstream::binary);
cannam@233 497
cannam@233 498 if (is.fail()) {
cannam@233 499 // cerr << "failed to open: " << filepath << endl;
cannam@233 500 continue;
cannam@233 501 }
cannam@233 502
cannam@233 503 // cerr << "opened: " << filepath << endl;
cannam@233 504
cannam@233 505 while (!!is.getline(buffer, 1024)) {
cannam@233 506
cannam@233 507 string line(buffer);
cannam@233 508
cannam@233 509 // cerr << "line = " << line << endl;
cannam@233 510
cannam@233 511 string::size_type di = line.find("::");
cannam@233 512 if (di == string::npos) continue;
cannam@233 513
cannam@233 514 string id = line.substr(0, di);
cannam@233 515 string encodedCat = line.substr(di + 2);
cannam@233 516
cannam@233 517 if (id.substr(0, 5) != "vamp:") continue;
cannam@233 518 id = id.substr(5);
cannam@233 519
cannam@233 520 while (encodedCat.length() >= 1 &&
cannam@233 521 encodedCat[encodedCat.length()-1] == '\r') {
cannam@233 522 encodedCat = encodedCat.substr(0, encodedCat.length()-1);
cannam@233 523 }
cannam@233 524
cannam@233 525 // cerr << "id = " << id << ", cat = " << encodedCat << endl;
cannam@233 526
cannam@233 527 PluginCategoryHierarchy category;
cannam@233 528 string::size_type ai;
cannam@233 529 while ((ai = encodedCat.find(" > ")) != string::npos) {
cannam@233 530 category.push_back(encodedCat.substr(0, ai));
cannam@233 531 encodedCat = encodedCat.substr(ai + 3);
cannam@233 532 }
cannam@233 533 if (encodedCat != "") category.push_back(encodedCat);
cannam@233 534
cannam@233 535 m_taxonomy[id] = category;
cannam@233 536 }
cannam@233 537 }
cannam@233 538 }
cannam@233 539 }
cannam@233 540
cannam@233 541 void
cannam@233 542 PluginLoader::Impl::pluginDeleted(PluginDeletionNotifyAdapter *adapter)
cannam@233 543 {
cannam@233 544 void *handle = m_pluginLibraryHandleMap[adapter];
Chris@390 545 if (handle) Files::unloadLibrary(handle);
cannam@233 546 m_pluginLibraryHandleMap.erase(adapter);
cannam@233 547 }
cannam@233 548
cannam@233 549 PluginLoader::Impl::PluginDeletionNotifyAdapter::PluginDeletionNotifyAdapter(Plugin *plugin,
cannam@233 550 Impl *loader) :
cannam@233 551 PluginWrapper(plugin),
cannam@233 552 m_loader(loader)
cannam@233 553 {
cannam@233 554 }
cannam@233 555
cannam@233 556 PluginLoader::Impl::PluginDeletionNotifyAdapter::~PluginDeletionNotifyAdapter()
cannam@233 557 {
cannam@233 558 // We need to delete the plugin before calling pluginDeleted, as
cannam@233 559 // the delete call may require calling through to the descriptor
cannam@233 560 // (for e.g. cleanup) but pluginDeleted may unload the required
cannam@233 561 // library for the call. To prevent a double deletion when our
cannam@233 562 // parent's destructor runs (after this one), be sure to set
cannam@233 563 // m_plugin to 0 after deletion.
cannam@233 564 delete m_plugin;
cannam@233 565 m_plugin = 0;
cannam@233 566
cannam@233 567 if (m_loader) m_loader->pluginDeleted(this);
cannam@233 568 }
cannam@233 569
cannam@233 570 }
cannam@233 571
cannam@233 572 }
cannam@263 573
cannam@263 574 _VAMP_SDK_HOSTSPACE_END(PluginLoader.cpp)
cannam@263 575