chore: add event listeners

Author: BFergerson

src/jvmMain/kotlin/spp/protocol/service/listen/LiveInstrumentEventListener.kt

@@ -0,0 +1,28 @@
+/*
+ * Source++, the open-source live coding platform.
+ * Copyright (C) 2022 CodeBrig, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package spp.protocol.service.listen
+
+import spp.protocol.instrument.event.LiveInstrumentEvent
+
+/**
+ * todo: description.
+ *
+ * @author [Brandon Fergerson](mailto:bfergerson@apache.org)
+ */
+fun interface LiveInstrumentEventListener {
+    fun accept(event: LiveInstrumentEvent)
+}

src/jvmMain/kotlin/spp/protocol/service/listen/LiveViewEventListener.kt

@@ -0,0 +1,28 @@
+/*
+ * Source++, the open-source live coding platform.
+ * Copyright (C) 2022 CodeBrig, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package spp.protocol.service.listen
+
+import spp.protocol.view.LiveViewEvent
+
+/**
+ * todo: description.
+ *
+ * @author [Brandon Fergerson](mailto:bfergerson@apache.org)
+ */
+fun interface LiveViewEventListener {
+    fun accept(event: LiveViewEvent)
+}