Addition of interface for loading external modules as shared library objects

include/modules.h

@@ -0,0 +1,44 @@
+#ifndef _MODULES_H
+#define _MODULES_H
+/*
+ * This file is distributed as part of the SkySQL Gateway.  It 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,
+ * version 2.
+ *
+ * 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, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright SkySQL Ab 2013
+ */
+
+/*
+ * The module interface used within the gateway
+ *
+ * Revision History
+ *
+ * Date		Who		Description
+ * 13/06/13	Mark Riddoch	Initial implementation
+ *
+ */
+
+typedef struct modules {
+	char	*module;	/* The name of the module */
+	char	*type;		/* The module type */
+	char	*version;	/* Module version */
+	void	*handle;	/* The handle returned by dlopen */
+	void	*modobj;	/* The module "object" this is the set of entry points */
+	struct	modules
+		*next;		/* Next module in the linked list */
+} MODULES;
+
+extern	void 	*load_module(const char *module, const char *type, const char *entry);
+extern	void	unload_module(const char *module);
+extern	void	printModules();
+#endif