PluginLoader::PluginCategoryHierarchy
PluginLoader::Impl::getPluginCategory(PluginKey plugin)
{
if (m_taxonomy.empty()) generateTaxonomy();
if (m_taxonomy.find(plugin) == m_taxonomy.end()) {
return PluginCategoryHierarchy();
}
return m_taxonomy[plugin];
}
std::vector<QString>
FeatureExtractionPluginFactory::getPluginIdentifiers()
{
Profiler profiler("FeatureExtractionPluginFactory::getPluginIdentifiers");
std::vector<QString> rv;
std::vector<QString> path = getPluginPath();
for (std::vector<QString>::iterator i = path.begin(); i != path.end(); ++i) {
#ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: scanning directory " << i->toStdString() << std::endl;
#endif
QDir pluginDir(*i, PLUGIN_GLOB,
QDir::Name | QDir::IgnoreCase,
QDir::Files | QDir::Readable);
for (unsigned int j = 0; j < pluginDir.count(); ++j) {
QString soname = pluginDir.filePath(pluginDir[j]);
#ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: trying potential library " << soname.toStdString() << std::endl;
#endif
void *libraryHandle = DLOPEN(soname, RTLD_LAZY | RTLD_LOCAL);
if (!libraryHandle) {
std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to load library " << soname.toStdString() << ": " << DLERROR() << std::endl;
continue;
}
#ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: It's a library all right, checking for descriptor" << std::endl;
#endif
VampGetPluginDescriptorFunction fn = (VampGetPluginDescriptorFunction)
DLSYM(libraryHandle, "vampGetPluginDescriptor");
if (!fn) {
std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: No descriptor function in " << soname.toStdString() << std::endl;
if (DLCLOSE(libraryHandle) != 0) {
std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname.toStdString() << std::endl;
}
continue;
}
#ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Vamp descriptor found" << std::endl;
#endif
const VampPluginDescriptor *descriptor = 0;
int index = 0;
std::map<std::string, int> known;
bool ok = true;
while ((descriptor = fn(VAMP_API_VERSION, index))) {
if (known.find(descriptor->identifier) != known.end()) {
std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Plugin library "
<< soname.toStdString()
<< " returns the same plugin identifier \""
<< descriptor->identifier << "\" at indices "
<< known[descriptor->identifier] << " and "
<< index << std::endl;
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Avoiding this library (obsolete API?)" << std::endl;
ok = false;
break;
} else {
known[descriptor->identifier] = index;
}
++index;
}
if (ok) {
index = 0;
while ((descriptor = fn(VAMP_API_VERSION, index))) {
QString id = PluginIdentifier::createIdentifier
("vamp", soname, descriptor->identifier);
rv.push_back(id);
#ifdef DEBUG_PLUGIN_SCAN_AND_INSTANTIATE
std::cerr << "FeatureExtractionPluginFactory::getPluginIdentifiers: Found plugin id " << id.toStdString() << " at index " << index << std::endl;
#endif
++index;
}
}
if (DLCLOSE(libraryHandle) != 0) {
std::cerr << "WARNING: FeatureExtractionPluginFactory::getPluginIdentifiers: Failed to unload library " << soname.toStdString() << std::endl;
}
}
}
generateTaxonomy();
return rv;
}
