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authorAnand Avati <avati@gluster.com>2011-06-18 03:53:59 +0000
committerAnand Avati <avati@gluster.com>2011-06-19 02:16:48 -0700
commite7e51d768d3dc861c03eab8c3fa817cc1a771770 (patch)
treebadfd01504b54922739e55f32acedb3479b3b2d0 /libglusterfs
parent1fc2a841ae90b0f29bf8aa39351bd92879ec1f44 (diff)
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
Diffstat (limited to 'libglusterfs')
-rw-r--r--libglusterfs/src/stack.c16
-rw-r--r--libglusterfs/src/stack.h14
2 files changed, 30 insertions, 0 deletions
diff --git a/libglusterfs/src/stack.c b/libglusterfs/src/stack.c
index ebaf814..1fccd88 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);
+ }
}
diff --git a/libglusterfs/src/stack.h b/libglusterfs/src/stack.h
index 63b14ca..323c64c 100644
--- a/libglusterfs/src/stack.h
+++ b/libglusterfs/src/stack.h
@@ -83,6 +83,10 @@ struct _call_frame_t {
glusterfs_fop_t op;
struct timeval begin; /* when this frame was created */
struct timeval end; /* when this frame completed */
+ const char *wind_from;
+ const char *wind_to;
+ const char *unwind_from;
+ const char *unwind_to;
};
struct _call_stack_t {
@@ -223,6 +227,9 @@ STACK_DESTROY (call_stack_t *stack)
_new->parent = frame; \
_new->cookie = _new; \
LOCK_INIT (&_new->lock); \
+ _new->wind_from = __FUNCTION__; \
+ _new->wind_to = #fn; \
+ _new->unwind_to = #rfn; \
frame->ref_count++; \
old_THIS = THIS; \
THIS = obj; \
@@ -254,6 +261,9 @@ STACK_DESTROY (call_stack_t *stack)
_new->parent = frame; \
_new->cookie = cky; \
LOCK_INIT (&_new->lock); \
+ _new->wind_from = __FUNCTION__; \
+ _new->wind_to = #fn; \
+ _new->unwind_to = #rfn; \
frame->ref_count++; \
fn##_cbk = rfn; \
old_THIS = THIS; \
@@ -279,6 +289,7 @@ STACK_DESTROY (call_stack_t *stack)
old_THIS = THIS; \
THIS = _parent->this; \
frame->complete = _gf_true; \
+ frame->unwind_from = __FUNCTION__; \
fn (_parent, frame->cookie, _parent->this, params); \
THIS = old_THIS; \
} while (0)
@@ -301,6 +312,7 @@ STACK_DESTROY (call_stack_t *stack)
old_THIS = THIS; \
THIS = _parent->this; \
frame->complete = _gf_true; \
+ frame->unwind_from = __FUNCTION__; \
fn (_parent, frame->cookie, _parent->this, params); \
THIS = old_THIS; \
} while (0)
@@ -327,6 +339,8 @@ copy_frame (call_frame_t *frame)
newstack->gid = oldstack->gid;
newstack->pid = oldstack->pid;
newstack->ngrps = oldstack->ngrps;
+ newstack->op = oldstack->op;
+ newstack->type = oldstack->type;
memcpy (newstack->groups, oldstack->groups,
sizeof (uint32_t) * GF_REQUEST_MAXGROUPS);
newstack->unique = oldstack->unique;