""

Source/charon/logger.c

@@ -0,0 +1,141 @@
+/**
+ * @file logger.c
+ * 
+ * @brief Logger object, allows fine-controlled logging
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+
+
+#include "logger.h"
+#include "types.h"
+#include "allocator.h"
+
+#include <syslog.h>
+#include <stdarg.h>
+
+
+
+/**
+ * @brief The logger object
+ */
+typedef struct private_logger_s private_logger_t;
+struct private_logger_s { 	
+	/**
+	 * Public data
+	 */
+	logger_t public;
+	/**
+	 * fd to log, NULL for syslog
+	 */
+	FILE *target;
+	/**
+	 * detail-level of logger
+	 */
+	logger_level_t level;
+	/**
+	 * name of logger
+	 */
+	char *name;
+};
+
+
+
+static status_t logg(private_logger_t *this, logger_level_t loglevel, char *format, ...)
+{
+	if ((this->level & loglevel) == loglevel)
+	{
+		va_list args;
+		va_start(args, format);
+		
+		if (this->target)
+		{
+			fprintf(this->target, format, args);
+			fprintf(this->target, "\n");
+		}
+		else
+		{
+			syslog(LOG_INFO, format, args);
+		}	
+		va_end(args);	
+	}
+	
+	
+	return SUCCESS;
+}
+	
+static status_t enable_level(private_logger_t *this, logger_level_t log_level)
+{
+	this->level |= log_level;
+	return SUCCESS;
+}
+	
+static status_t disable_level(private_logger_t *this, logger_level_t log_level)
+{
+	this->level &= (~log_level);
+	return SUCCESS;
+}
+	
+static status_t destroy(private_logger_t *this)
+{
+	if (this->target)
+	{
+		fclose(this->target);
+	}
+	allocator_free(this);
+	return SUCCESS;
+}
+
+
+logger_t *logger_create(char *logger_name, char *file, logger_level_t log_level)
+{
+	private_logger_t *this = allocator_alloc_thing(private_logger_t);
+		
+	if (this == NULL)
+	{
+		return NULL;	
+	}
+	
+	this->public.log = (status_t(*)(logger_t*,logger_level_t,char*,...))logg;
+	this->public.enable_level = (status_t(*)(logger_t*,logger_level_t))enable_level;
+	this->public.disable_level = (status_t(*)(logger_t*,logger_level_t))disable_level;
+	this->public.destroy = (status_t(*)(logger_t*))destroy;
+
+	this->level = log_level;
+	this->name = logger_name;
+	
+	/* use system logger ? */
+	if (file)
+	{
+		this->target = fopen(file, "a");
+		if (this->target == NULL) 
+		{
+			allocator_free(this);
+			return NULL;	
+		}
+	}
+	else
+	{
+		this->target = NULL;
+		openlog("charon", 0, LOG_DAEMON);
+	}
+	
+	return (logger_t*)this;
+}
+
+

Source/charon/logger.h

@@ -0,0 +1,67 @@
+/**
+ * @file logger.h
+ * 
+ * @brief Logger object, allows fine-controlled logging
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#ifndef LOGGER_H_
+#define LOGGER_H_
+
+#include "types.h"
+
+
+typedef enum logger_level_e logger_level_t;
+enum logger_level_e {
+	CONTROL = 1,
+	CONTROL_MORE = 2,
+	RAW = 4,
+	PRIVATE = 8
+};
+
+
+
+
+/**
+ * @brief The logger object
+ */
+typedef struct logger_s logger_t;
+struct logger_s { 	
+	status_t (*log) (logger_t *this, logger_level_t loglevel, char *format, ...);
+	
+	status_t (*enable_level) (logger_t *this, logger_level_t log_level);
+	
+	status_t (*disable_level) (logger_t *this, logger_level_t log_level);
+	
+	/**
+	 * @brief Destroys a generator object
+	 * 
+	 * @param generator generator object
+	 * @return SUCCESSFUL if succeeded, FAILED otherwise
+	 */
+	status_t (*destroy) (logger_t *this);
+};
+
+/**
+ * Constructor to create a logger
+ * 
+ */
+logger_t *logger_create(char *logger_name, char *file, logger_level_t log_level);
+
+#endif /*LOGGER_H_*/
+