Rename xbus to xswiftbus

Summary:
I wanted to rename xbus because its relation to //swift// is not immediately clear from the name.

xswiftbus seems reasonable.

Reviewers: #swift_pilot_client, kbasan

Reviewed By: kbasan

Subscribers: kbasan, jenkins

Tags: #swift_pilot_client

Differential Revision: https://dev.swift-project.org/D14

src/xswiftbus/command.h

@@ -0,0 +1,59 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#ifndef BLACKSIM_XSWIFTBUS_COMMAND_H
+#define BLACKSIM_XSWIFTBUS_COMMAND_H
+
+//! \file
+
+#include <XPLMUtilities.h>
+#include <functional>
+
+namespace XSwiftBus
+{
+
+    /*!
+     * Class-based interface to X-Plane's custom command API.
+     */
+    class CCommand
+    {
+    public:
+        //! Constructor.
+        CCommand(const char *name, const char *description, std::function<void()> handler) : m_handler(handler)
+        {
+            m_command = XPLMCreateCommand(name, description);
+            XPLMRegisterCommandHandler(m_command, callback, false, static_cast<void*>(this));
+        }
+
+        //! Destructor.
+        ~CCommand()
+        {
+            XPLMUnregisterCommandHandler(m_command, callback, false, static_cast<void*>(this));
+        }
+
+        //! Not copyable.
+        //! @{
+        CCommand(const CCommand &) = delete;
+        CCommand &operator =(const CCommand &) = delete;
+        //! @}
+
+    private:
+        static int callback(XPLMCommandRef, XPLMCommandPhase phase, void *refcon)
+        {
+            if (phase == xplm_CommandBegin) { (static_cast<CCommand*>(refcon)->m_handler)(); }
+            return 1;
+        }
+
+        std::function<void()> m_handler;
+        XPLMCommandRef m_command;
+    };
+
+}
+
+#endif