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+#ifndef logger_h
+#define logger_h
+/* logger.h */
+/* guybrush - Eurobot 2012 AI. {{{
+ *
+ * Copyright (C) 2012 Nicolas Schodet
+ *
+ * APBTeam:
+ * Web: http://apbteam.org/
+ * Email: team AT apbteam DOT org
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+
+/** Log a serie of bytes. */
+#define logger_log(args...) \
+ do { \
+ logger_write_event_counter (); \
+ PREPROC_FOR (logger_log_, ## args) \
+ } while (0)
+#define logger_log_(b) logger_write (b);
+
+#ifndef HOST
+
+/** Initialise logger, do not write anything yet. */
+void
+logger_init (void);
+
+/** Write pending information. */
+void
+logger_update (void);
+
+/** Write event counter for synchronisation. */
+void
+logger_write_event_counter (void);
+
+/** Write one byte in buffer. */
+void
+logger_write (uint8_t b);
+
+#else
+
+#define logger_init()
+#define logger_update()
+#define logger_write_event_counter()
+#define logger_write(b)
+
+#endif
+
+#endif /* logger_h */