AP_Scripting: Initial scripting framework

libraries/AP_Scripting/AP_Scripting.cpp

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+/*
+   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 <http://www.gnu.org/licenses/>.
+ */
+
+#if ENABLE_SCRIPTING
+
+#include <AP_Scripting/AP_Scripting.h>
+#include <AP_HAL/AP_HAL.h>
+
+AP_Scripting::AP_Scripting() {       
+#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
+    if (_singleton != nullptr) {
+        AP_HAL::panic("Scripting must be a singleton");
+    }
+#endif // CONFIG_HAL_BOARD == HAL_BOARD_SITL
+    _singleton = this;
+}
+
+
+
+AP_Scripting *AP_Scripting::_singleton = nullptr;
+
+namespace AP {
+
+AP_Scripting *scripting() {
+    return AP_Scripting::get_singleton();
+}
+
+};
+
+#endif // ENABLE_SCRIPTING

libraries/AP_Scripting/AP_Scripting.h

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+/*
+   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 <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <AP_Common/AP_Common.h>
+
+#if ENABLE_SCRIPTING
+
+class AP_Scripting
+{
+public:
+    AP_Scripting();
+
+    /* Do not allow copies */
+    AP_Scripting(const AP_Scripting &other) = delete;
+    AP_Scripting &operator=(const AP_Scripting&) = delete;
+
+    static AP_Scripting * get_singleton() {
+        return _singleton;
+    }
+
+private:
+    static AP_Scripting *_singleton;
+};
+
+namespace AP {
+    AP_Scripting * scripting();
+};
+
+#endif // ENABLE_SCRIPTING