85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "drm-vts-vendor-modules"
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#include <dirent.h>
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#include <dlfcn.h>
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#include <log/log.h>
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#include <memory>
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#include <utils/String8.h>
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#include <SharedLibrary.h>
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#include "drm_hal_vendor_module_api.h"
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#include "vendor_modules.h"
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using std::string;
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using std::vector;
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using std::unique_ptr;
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using ::android::String8;
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using ::android::hardware::drm::V1_0::helper::SharedLibrary;
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namespace drm_vts {
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void VendorModules::scanModules(const std::string &directory) {
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DIR* dir = opendir(directory.c_str());
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if (dir == NULL) {
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ALOGE("Unable to open drm VTS vendor directory %s", directory.c_str());
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} else {
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struct dirent* entry;
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while ((entry = readdir(dir))) {
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ALOGD("checking file %s", entry->d_name);
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string fullpath = directory + "/" + entry->d_name;
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if (endsWith(fullpath, ".so")) {
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mPathList.push_back(fullpath);
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}
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}
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closedir(dir);
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}
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}
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DrmHalVTSVendorModule* VendorModules::getModule(const string& path) {
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if (mOpenLibraries.find(path) == mOpenLibraries.end()) {
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auto library = std::make_unique<SharedLibrary>(String8(path.c_str()));
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if (!library) {
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ALOGE("failed to map shared library %s", path.c_str());
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return NULL;
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}
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mOpenLibraries[path] = std::move(library);
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}
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const unique_ptr<SharedLibrary>& library = mOpenLibraries[path];
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void* symbol = library->lookup("vendorModuleFactory");
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if (symbol == NULL) {
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ALOGE("getVendorModule failed to lookup 'vendorModuleFactory' in %s: "
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"%s", path.c_str(), library->lastError());
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return NULL;
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}
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typedef DrmHalVTSVendorModule* (*ModuleFactory)();
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ModuleFactory moduleFactory = reinterpret_cast<ModuleFactory>(symbol);
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return (*moduleFactory)();
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}
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DrmHalVTSVendorModule* VendorModules::getModuleByName(const string& name) {
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for (const auto &path : mPathList) {
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auto module = getModule(path);
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if (module->getServiceName() == name) {
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return module;
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}
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}
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return NULL;
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}
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};
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