* add include files and static library due to problems with AMALGAM'ED

distri and nodeset feature
* add UaModeler project including XML export
* add nodeset using test server

include/ua_log.h

@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2014-2016 the contributors as stated in the AUTHORS file
+ *
+ * This file is part of open62541. open62541 is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU Lesser General
+ * Public License, version 3 (as published by the Free Software Foundation) with
+ * a static linking exception as stated in the LICENSE file provided with
+ * open62541.
+ *
+ * open62541 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 Lesser General Public License for more
+ * details.
+ */
+
+#ifndef UA_LOG_H_
+#define UA_LOG_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ua_config.h"
+
+/**
+ * Logging
+ * -------
+ * Servers and clients may contain a logger. Every logger needs to implement the
+ * `UA_Logger` signature. An example logger that writes to stdout is provided in
+ * the plugins folder.
+ *
+ * Every log-message consists of a log-level, a log-category and a string
+ * message content. The timestamp of the log-message is created within the
+ * logger.
+ */
+
+typedef enum {
+    UA_LOGLEVEL_TRACE,
+    UA_LOGLEVEL_DEBUG,
+    UA_LOGLEVEL_INFO,
+    UA_LOGLEVEL_WARNING,
+    UA_LOGLEVEL_ERROR,
+    UA_LOGLEVEL_FATAL
+} UA_LogLevel;
+
+typedef enum {
+    UA_LOGCATEGORY_NETWORK,
+    UA_LOGCATEGORY_SECURECHANNEL,
+    UA_LOGCATEGORY_SESSION,
+    UA_LOGCATEGORY_SERVER,
+    UA_LOGCATEGORY_CLIENT,
+    UA_LOGCATEGORY_USERLAND
+} UA_LogCategory;
+    
+/**
+ * The signature of the logger. The msg string and following varargs are
+ * formatted according to the rules of the printf command.
+ *
+ * Do not use the logger directly but make use of the following macros that take
+ * the minimum log-level defined in ua_config.h into account. */
+typedef void (*UA_Logger)(UA_LogLevel level, UA_LogCategory category, const char *msg, ...);
+
+#if UA_LOGLEVEL <= 100
+#define UA_LOG_TRACE(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_TRACE, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_TRACE(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#if UA_LOGLEVEL <= 200
+#define UA_LOG_DEBUG(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_DEBUG, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_DEBUG(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#if UA_LOGLEVEL <= 300
+#define UA_LOG_INFO(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_INFO, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_INFO(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#if UA_LOGLEVEL <= 400
+#define UA_LOG_WARNING(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_WARNING, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_WARNING(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#if UA_LOGLEVEL <= 500
+#define UA_LOG_ERROR(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_ERROR, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_ERROR(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#if UA_LOGLEVEL <= 600
+#define UA_LOG_FATAL(LOGGER, CATEGORY, ...) do { \
+        if(LOGGER) LOGGER(UA_LOGLEVEL_FATAL, CATEGORY, __VA_ARGS__); } while(0)
+#else
+#define UA_LOG_FATAL(LOGGER, CATEGORY, ...) do {} while(0)
+#endif
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif /* UA_LOG_H_ */