log.h: tell the compiler these logging functions use printf-like formats

[i3/i3] / include / log.h

diff --git a/include/log.h b/include/log.h
index 6d529a00f27133b524e3c9a6171898634b027c2c..d3e967e77e2a206a065ddd9cf307b6ec3da811cb 100644 (file)
--- a/include/log.h
+++ b/include/log.h
@@ -1,11 +1,10 @@
 /*
- * vim:ts=8:expandtab
+ * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
+ * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
  *
- * © 2009-2010 Michael Stapelberg and contributors
- *
- * See file LICENSE for license information.
+ * log.c: Logging functions.
  *
  */
 #ifndef _LOG_H
@@ -18,15 +17,24 @@
    is, delete the preceding comma */
 #define LOG(fmt, ...) verboselog(fmt, ##__VA_ARGS__)
 #define ELOG(fmt, ...) errorlog("ERROR: " fmt, ##__VA_ARGS__)
-#define DLOG(fmt, ...) debuglog(LOGLEVEL, "%s:%s:%d - " fmt, __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
+#define DLOG(fmt, ...) debuglog("%s:%s:%d - " fmt, __FILE__, __FUNCTION__, __LINE__, ##__VA_ARGS__)
+
+extern char *errorfilename;
+extern char *shmlogname;
+extern int shmlog_size;
 
-extern char *loglevels[];
+/**
+ * Initializes logging by creating an error logfile in /tmp (or
+ * XDG_RUNTIME_DIR, see get_process_filename()).
+ *
+ */
+void init_logging(void);
 
 /**
- * Enables the given loglevel.
+ * Set debug logging.
  *
  */
-void add_loglevel(const char *level);
+void set_debug_logging(const bool _debug_logging);
 
 /**
  * Set verbosity of i3. If verbose is set to true, informative messages will
@@ -38,23 +46,26 @@ void set_verbosity(bool _verbose);
 
 /**
  * Logs the given message to stdout while prefixing the current time to it,
- * but only if the corresponding debug loglevel was activated.
+ * but only if debug logging was activated.
  *
  */
-void debuglog(int lev, char *fmt, ...);
+void debuglog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it.
  *
  */
-void errorlog(char *fmt, ...);
+void errorlog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it,
  * but only if verbose mode is activated.
  *
  */
-void verboselog(char *fmt, ...);
+void verboselog(char *fmt, ...)
+    __attribute__ ((format (printf, 1, 2)));
 
 /**
  * Logs the given message to stdout while prefixing the current time to it.