1 files changed, 74 insertions, 0 deletions
diff --git a/src/uscxml/plugins/IOProcessorImpl.h b/src/uscxml/plugins/IOProcessorImpl.h
new file mode 100644
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+++ b/src/uscxml/plugins/IOProcessorImpl.h
@@ -0,0 +1,74 @@
+/**
+ *  @file
+ *  @author     2012-2014 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
+ *  @copyright  Simplified BSD
+ *
+ *  @cond
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the FreeBSD license as published by the FreeBSD
+ *  project.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the FreeBSD license along with this
+ *  program. If not, see <http://www.opensource.org/licenses/bsd-license>.
+ *  @endcond
+ */
+
+#ifndef IOPROCESSORIMPL_H_92E6AA44
+#define IOPROCESSORIMPL_H_92E6AA44
+
+
+#include "uscxml/Common.h"
+#include "uscxml/plugins/EventHandler.h"
+#include "uscxml/messages/Event.h"
+
+namespace uscxml {
+
+/**
+ * @ingroup ioproc
+ * @ingroup abstract
+ * Abstract base class for IOProcessor%s implementations.
+ */
+class USCXML_API IOProcessorImpl : public EventHandlerImpl {
+public:
+
+	/**
+	 * Factory demands a new instance.
+	 * @param interpreter The imlementation of the associated Interpreter
+	 * @todo We will eventually introduce callbacks and prevent complete access to the interpreter.
+	 */
+	virtual std::shared_ptr<IOProcessorImpl> create(InterpreterImpl* interpreter) = 0;
+
+	/**
+	 * We received an event from the SCXML Interpreter we are associated with.
+	 * @param target Where the event is supposed to be delivered to.
+	 * @param event The event to deliver.
+	 */
+	virtual void eventFromSCXML(const std::string& target, const Event& event) = 0;
+	
+	/**
+	 * Determine whether the given target is a valid destination for events.
+	 * @param target A target where the Interpreter wants to deliver Event%s to.
+	 * @return Whether or not the target is valid.
+	 */
+	virtual bool isValidTarget(const std::string& target) = 0;
+
+protected:
+	/**
+	 * Return an event to the SCXML Interpreter instance.
+	 * @param event An event to enqueue at the interpreter's external queue.
+	 * @param type The type of this I/O Processor for `event.origintype`.
+	 * @param origin The origin of this I/O Processor for `event.origin`.
+	 * @param internal If the event is to be delivered to the Interpreter's internal queue instead.
+	 */	
+	void eventToSCXML(Event& event, const std::string& type, const std::string& origin, bool internal = false);
+
+};
+
+}
+
+
+#endif /* end of include guard: IOPROCESSORIMPL_H_92E6AA44 */