Implement NCM

stratosphere/ncm/source/impl/lr_manager.cpp

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2019 Adubbz
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "../lr_contentlocationresolver.hpp"
+#include "../lr_redirectonlylocationresolver.hpp"
+#include "lr_manager.hpp"
+
+namespace sts::lr::impl {
+
+    namespace {
+
+        BoundedMap<ncm::StorageId, std::shared_ptr<ILocationResolver>, 5> g_location_resolvers;
+        std::shared_ptr<RegisteredLocationResolverInterface> g_registered_location_resolver = nullptr;
+        std::shared_ptr<AddOnContentLocationResolverInterface> g_add_on_content_location_resolver = nullptr;
+        HosMutex g_mutex;
+
+    }
+
+    Result OpenLocationResolver(Out<std::shared_ptr<ILocationResolver>> out, ncm::StorageId storage_id) {
+        std::scoped_lock lk(g_mutex);
+        auto resolver = g_location_resolvers.Find(storage_id);
+
+        if (!resolver) {
+            if (storage_id == ncm::StorageId::Host) {
+                g_location_resolvers[storage_id] = std::make_shared<RedirectOnlyLocationResolverInterface>();
+            } else {
+                auto content_resolver = std::make_shared<ContentLocationResolverInterface>(storage_id);
+                R_TRY(content_resolver->Refresh());
+                g_location_resolvers[storage_id] = std::move(content_resolver);
+            }
+        }
+
+        /* Make a copy of the resolver for output. */
+        auto tmp_resolver = g_location_resolvers[storage_id];
+        out.SetValue(std::move(tmp_resolver));
+        return ResultSuccess;
+    }
+
+    Result OpenRegisteredLocationResolver(Out<std::shared_ptr<RegisteredLocationResolverInterface>> out) {
+        std::scoped_lock lk(g_mutex);
+
+        if (!g_registered_location_resolver) {
+            g_registered_location_resolver = std::make_shared<RegisteredLocationResolverInterface>();
+        }
+        
+        /* Make a copy of the resolver for output. */
+        auto tmp_resolver = g_registered_location_resolver;
+        out.SetValue(std::move(tmp_resolver));
+        return ResultSuccess;
+    }
+    
+    Result RefreshLocationResolver(ncm::StorageId storage_id) {
+        std::scoped_lock lk(g_mutex);
+        auto resolver = g_location_resolvers.Find(storage_id);
+
+        if (!resolver) {
+            return ResultLrUnknownStorageId;
+        }
+
+        (*resolver)->Refresh();
+        return ResultSuccess;
+    }
+
+    Result OpenAddOnContentLocationResolver(Out<std::shared_ptr<AddOnContentLocationResolverInterface>> out) {
+        std::scoped_lock lk(g_mutex);
+
+        if (!g_add_on_content_location_resolver) {
+            g_add_on_content_location_resolver = std::make_shared<AddOnContentLocationResolverInterface>();
+        }
+        
+        /* Make a copy of the resolver for output. */
+        auto tmp_resolver = g_add_on_content_location_resolver;
+        out.SetValue(std::move(tmp_resolver));
+        return ResultSuccess;
+    }
+
+}