Implement basic device registry.

devices/deviceregistry.cpp

@@ -0,0 +1,60 @@
+/*
+DingusPPC - The Experimental PowerPC Macintosh emulator
+Copyright (C) 2018-22 divingkatae and maximum
+                      (theweirdo)     spatium
+
+(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 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 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 <https://www.gnu.org/licenses/>.
+*/
+
+/** @file Device registry implementation. */
+
+#include <devices/deviceregistry.h>
+#include <devices/common/hwcomponent.h>
+
+#include <memory>
+#include <string>
+
+bool DeviceRegistry::add(const std::string name, DeviceDescription desc)
+{
+    if (get_registry().find(name) != get_registry().end()) {
+        return false;
+    }
+
+    get_registry()[name] = desc;
+    return true;
+}
+
+shared_ptr<HWComponent> DeviceRegistry::create(const std::string& name)
+{
+    auto it = get_registry().find(name);
+    if (it != get_registry().end()) {
+        return it->second.m_create_func();
+    }
+
+    return nullptr;
+}
+
+DeviceDescription& DeviceRegistry::get_descriptor(const std::string& name)
+{
+    auto it = get_registry().find(name);
+    if (it != get_registry().end()) {
+        return it->second;
+    }
+
+    static DeviceDescription empty_descriptor = {};
+
+    return empty_descriptor;
+}

devices/deviceregistry.h

@@ -0,0 +1,65 @@
+/*
+DingusPPC - The Experimental PowerPC Macintosh emulator
+Copyright (C) 2018-22 divingkatae and maximum
+                      (theweirdo)     spatium
+
+(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 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 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 <https://www.gnu.org/licenses/>.
+*/
+
+/** @file Device registry definitions. */
+
+#ifndef DEVICE_REGISTRY_H
+#define DEVICE_REGISTRY_H
+
+#include <devices/common/hwcomponent.h>
+#include <machines/machineproperties.h>
+
+#include <functional>
+#include <memory>
+#include <string>
+#include <map>
+#include <vector>
+
+typedef std::function<unique_ptr<HWComponent> ()> CreateFunc;
+
+struct DeviceDescription {
+    CreateFunc      m_create_func;
+    vector<string>  subdev_list;
+    PropMap         properties;
+};
+
+class DeviceRegistry
+{
+public:
+    DeviceRegistry() = delete;
+
+    static bool add(const string name, DeviceDescription desc);
+
+    static shared_ptr<HWComponent> create(const string& name);
+
+    static DeviceDescription& get_descriptor(const std::string& name);
+
+private:
+    static map<string, DeviceDescription> & get_registry() {
+        static map<string, DeviceDescription> device_registry;
+        return device_registry;
+    }
+};
+
+#define REGISTER_DEVICE(dev_name, dev_desc) \
+    static bool dev_name ## _registered = DeviceRegistry::add(#dev_name, (dev_desc))
+
+#endif // DEVICE_REGISTRY_H