--- /dev/null
+/*
+ Copyright (C) 2010-2014 jeanfi@gmail.com
+
+ 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.
+
+ 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
+ */
+#ifndef _P_LOG_H_
+#define _P_LOG_H_
+
+#define P_LOG_VER 2
+
+enum log_level {
+ LOG_ERR ,
+ LOG_WARN,
+ LOG_INFO,
+ LOG_DEBUG
+};
+
+void log_open(const char *path);
+void log_close();
+
+void log_printf(int lvl, const char *fmt, ...);
+void log_debug(const char *fmt, ...);
+void log_err(const char *fmt, ...);
+void log_info(const char *fmt, ...);
+void log_warn(const char *fmt, ...);
+
+void _log(const char *fct, const char *fmt, ...);
+
+#define log_fct(...) _log(__func__, __VA_ARGS__)
+#define log_fct_enter() log_fct("ENTER")
+#define log_fct_exit() log_fct("EXIT")
+
+/* level of the log file. */
+extern int log_level;
+
+#endif