update error system

[ust.git] / share / usterr.h

diff --git a/share/usterr.h b/share/usterr.h
index 9c4be7ee7aefff3fb58abb851c4f7e07401845b8..a96a36f2525644456a44608dcf1529f807cfffa1 100644 (file)
--- a/share/usterr.h
+++ b/share/usterr.h
@@ -1,15 +1,26 @@
 #ifndef USTERR_H
 #define USTERR_H
 
-//#define DEBUG
+#ifndef UST_COMPONENT
+//#error UST_COMPONENT is undefined
+#define UST_COMPONENT libust
+#endif
+
+/* To stringify the expansion of a define */
+#define XSTR(d) STR(d)
+#define STR(s) #s
+
+#define UST_STR_COMPONENT XSTR(UST_COMPONENT)
+
+#define DEBUG
 #ifdef DEBUG
-# define DBG(fmt, args...) do { fprintf(stderr, fmt "\n", ## args); fflush(stderr); } while(0)
+# define DBG(fmt, args...) do { fprintf(stderr, UST_STR_COMPONENT ": " fmt "(" __FILE__ ":" XSTR(__LINE__) ")\n", ## args); fflush(stderr); } while(0)
 #else
 # define DBG(fmt, args...) do {} while(0)
 #endif
-#define WARN(fmt, args...) fprintf(stderr, "libust: WARNING: " fmt "\n", ## args); fflush(stderr)
-#define ERR(fmt, args...) fprintf(stderr, "libust: ERROR: " fmt "\n", ## args); fflush(stderr)
-#define BUG(fmt, args...) fprintf(stderr, "libust: BUG: " fmt "\n", ## args); fflush(stderr)
+#define WARN(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": Warning: " fmt "\n", ## args); fflush(stderr)
+#define ERR(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": Error: " fmt "\n", ## args); fflush(stderr)
+#define BUG(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": BUG: " fmt "\n", ## args); fflush(stderr)
 #define PERROR(call) perror("ust: ERROR: " call)
 
 #define BUG_ON(condition) do { if (unlikely(condition)) ERR("condition not respected (BUG)"); } while(0)