Implement IComponent::terminate()

src/common/logging/vst3.cpp

@@ -38,6 +38,13 @@ void Vst3Logger::log_request(bool is_host_vst,
     });
 }
 
+void Vst3Logger::log_request(bool is_host_vst,
+                             const YaComponent::Terminate& request) {
+    log_request_base(is_host_vst, [&](auto& message) {
+        message << "<IComponent* #" << request.instance_id << ">::terminate()";
+    });
+}
+
 void Vst3Logger::log_request(bool is_host_vst, const WantsConfiguration&) {
     log_request_base(is_host_vst, [](auto& message) {
         message << "Requesting <Configuration>";

src/common/logging/vst3.h

@@ -49,6 +49,7 @@ class Vst3Logger {
 
     void log_request(bool is_host_vst, const YaComponent::Create&);
     void log_request(bool is_host_vst, const YaComponent::Destroy&);
+    void log_request(bool is_host_vst, const YaComponent::Terminate&);
     void log_request(bool is_host_vst, const WantsConfiguration&);
     void log_request(bool is_host_vst, const WantsPluginFactory&);
 

src/common/serialization/vst3.h

@@ -68,8 +68,10 @@ struct WantsPluginFactory {
  * encodes the information we request or the operation we want to perform. A
  * request of type `ControlRequest(T)` should send back a `T::Response`.
  */
-using ControlRequest =
-    std::variant<YaComponent::Create, YaComponent::Destroy, WantsPluginFactory>;
+using ControlRequest = std::variant<YaComponent::Create,
+                                    YaComponent::Destroy,
+                                    YaComponent::Terminate,
+                                    WantsPluginFactory>;
 
 template <typename S>
 void serialize(S& s, ControlRequest& payload) {

src/common/serialization/vst3/component.h

@@ -79,7 +79,7 @@ class YaComponent : public Steinberg::Vst::IComponent {
 
     /**
      * Message to request the Wine plugin host to instantiate a new IComponent
-     * to pass through a call to `IPluginFactory::createInstance(cid,
+     * to pass through a call to `IComponent::createInstance(cid,
      * IComponent::iid,
      * ...)`.
      */
@@ -126,6 +126,22 @@ class YaComponent : public Steinberg::Vst::IComponent {
 
     // From `IPluginBase`
     virtual tresult PLUGIN_API initialize(FUnknown* context) override = 0;
+
+    /**
+     * Message to pass through a call to `IComponent::terminate()` to the Wine
+     * plugin host.
+     */
+    struct Terminate {
+        using Response = UniversalTResult;
+
+        native_size_t instance_id;
+
+        template <typename S>
+        void serialize(S& s) {
+            s.value8b(instance_id);
+        }
+    };
+
     virtual tresult PLUGIN_API terminate() override = 0;
 
     // From `IComponent`

src/plugin/bridges/vst3-impls/component.cpp

@@ -40,8 +40,10 @@ tresult PLUGIN_API YaComponentPluginImpl::initialize(FUnknown* context) {
 }
 
 tresult PLUGIN_API YaComponentPluginImpl::terminate() {
-    // TODO: Implement
-    return Steinberg::kNotImplemented;
+    return bridge
+        .send_message(
+            YaComponent::Terminate{.instance_id = arguments.instance_id})
+        .native();
 }
 
 tresult PLUGIN_API

src/wine-host/bridges/vst3.cpp

@@ -78,6 +78,10 @@ void Vst3Bridge::run() {
 
                 return Ack{};
             },
+            [&](const YaComponent::Terminate& request)
+                -> YaComponent::Terminate::Response {
+                return component_instances[request.instance_id]->terminate();
+            },
             [&](const WantsPluginFactory&) -> WantsPluginFactory::Response {
                 return *plugin_factory;
             }});