stack: make process state dump more debug friendly

store points of stack wind and unwind (function names) for each
frame and dump them in process state dump

Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 1059 (enhancements for getting statistics from performance translators)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1059

1 files changed, 16 insertions, 0 deletions

diff --git a/libglusterfs/src/stack.c b/libglusterfs/src/stack.c
index ebaf814ad05..1fccd8813c5 100644
--- a/libglusterfs/src/stack.c
+++ b/libglusterfs/src/stack.c
@@ -76,6 +76,22 @@ gf_proc_dump_call_frame (call_frame_t *call_frame, const char *key_buf,...)
                 gf_proc_dump_build_key(key, prefix,"parent");
                 gf_proc_dump_write(key, "%s", my_frame.parent->this->name);
         }
+        if (my_frame.wind_from) {
+                gf_proc_dump_build_key(key, prefix, "wind_from");
+                gf_proc_dump_write(key, "%s", my_frame.wind_from);
+        }
+        if (my_frame.wind_to) {
+                gf_proc_dump_build_key(key, prefix, "wind_to");
+                gf_proc_dump_write(key, "%s", my_frame.wind_to);
+        }
+        if (my_frame.unwind_from) {
+                gf_proc_dump_build_key(key, prefix, "unwind_from");
+                gf_proc_dump_write(key, "%s", my_frame.unwind_from);
+        }
+        if (my_frame.unwind_to) {
+                gf_proc_dump_build_key(key, prefix, "unwind_to");
+                gf_proc_dump_write(key, "%s", my_frame.unwind_to);
+        }
 }