Branch HEAD

b=12191
r=adilger, johann

Add verbosity control to liblustreapi messages.

lustre/include/lustre/liblustreapi.h

@@ -16,7 +16,26 @@
 
 typedef void (*llapi_cb_t)(char *obd_type_name, char *obd_name, char *obd_uuid, void *args);
 
+/* liblustreapi message severity level */
+enum llapi_message_level {
+        LLAPI_MSG_OFF    = 0,
+        LLAPI_MSG_FATAL  = 1,
+        LLAPI_MSG_ERROR  = 2,
+        LLAPI_MSG_WARN   = 3,
+        LLAPI_MSG_NORMAL = 4,
+        LLAPI_MSG_INFO   = 5,
+        LLAPI_MSG_DEBUG  = 6,
+        LLAPI_MSG_MAX
+};
+
+/* the bottom three bits reserved for llapi_message_level */
+#define LLAPI_MSG_MASK          0x00000007
+#define LLAPI_MSG_NO_ERRNO      0x00000010 
+
 /* liblustreapi.c */
+extern void llapi_msg_set_level(int level);
+extern void llapi_err(int level, char *fmt, ...);
+extern void llapi_printf(int level, char *fmt, ...);
 extern int llapi_file_create(const char *name, unsigned long stripe_size,
                              int stripe_offset, int stripe_count,
                              int stripe_pattern);