From 2fd689d98a1c6bd24486e8e261e52bf0814dd477 Mon Sep 17 00:00:00 2001
From: Breno Leitao <leitao@linux.vnet.ibm.com>
Date: Thu, 1 Oct 2009 00:09:07 -0300
Subject: [PATCH] Actually indent_thread() is a very useful function, but
 sometimes you're probing something that is not related to any task, as an
 interrupt function, and if the application changes during the interrupt, the
 indentation gets confused. For example:

    0 swapper(0): -> neo_copy_data_from_queue_to_uart
    69 a.out(7659):   -> neo_parse_modem
    74 a.out(7659):    -> neo_param
    14 swapper(0): <- neo_copy_data_from_queue_to_uart
    83 a.out(7659):  -> jsm_carrier
    86 a.out(7659):  <- jsm_carrier
     0 swapper(0): -> neo_parse_modem
    94 a.out(7659): <- jsm_tty_set_termios
     8 swapper(0): <- neo_parse_modem

So, I decided to create a simpler function that doesn't
consider the task.

Much of the idea of this implementation came from Frank(Thanks)
---
 tapset/indent.stp | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/tapset/indent.stp b/tapset/indent.stp
index dface7819..1dbbebd42 100644
--- a/tapset/indent.stp
+++ b/tapset/indent.stp
@@ -1,6 +1,6 @@
 global _indent_counters, _indent_timestamps
 
-function _generic_indent (idx, delta) 
+function _generic_indent (idx, desc, delta) 
 {
   ts = __indent_timestamp ()
   if (! _indent_counters[idx]) _indent_timestamps[idx] = ts
@@ -9,14 +9,26 @@ function _generic_indent (idx, delta)
   x = _indent_counters[idx] + (delta > 0 ? delta : 0)
   _indent_counters[idx] += delta
 
-  r = sprintf("%6d %s(%d):", (ts - _indent_timestamps[idx]),
-                             execname(), tid())
+  r = sprintf("%6d %s:", (ts - _indent_timestamps[idx]), desc)
+
   for (i=1; i<x; i++) r .= " "
 
   return r
 }
 
+/**
+ * sfunction thread_indent - returns an amount of space with the current task information
+ * @delta: the amount of space added/removed for each call
+ */
 function thread_indent (delta) 
 {
-  return _generic_indent (tid(), delta)  
+  return _generic_indent (tid(), sprintf("%s(%d)", execname(), tid()), delta)
+}
+
+/**
+ * sfunction indent - returns an amount of space to indent
+ * @delta: the amount of space added/removed for each call
+ */
+function indent(delta){
+  return _generic_indent(-1, "",  delta)
 }
-- 
2.43.5