diff options
| author | Namhyung Kim | 2016-02-25 00:13:36 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2016-02-24 16:55:17 -0300 |
| commit | 8c01872fe3c17fde1ce74eecf523d6d7fce5ffec (patch) | |
| tree | aa7e0e5cd509ad83cb99639f6126417398b75534 /tools/perf/util/hist.h | |
| parent | 1a3906a7e6b9cbfaf2a3d00c310aed8af8e10d92 (diff) | |
perf hists: Add helper functions for hierarchy mode
The rb_hierarchy_{next,prev,last} functions are to traverse all hist
entries in a hierarchy. They will be used by various function which
supports hierarchy output.
As the rb_hierarchy_next() is used to traverse the whole hierarchy, it
sometime needs to visit entries regardless of current folding state. So
add enum hierarchy_move_dir and pass it to __rb_hierarchy_next() for
those cases.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1456326830-30456-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.h')
| -rw-r--r-- | tools/perf/util/hist.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 044419b3be7c..5690906c154c 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -418,4 +418,20 @@ int perf_hist_config(const char *var, const char *value); void perf_hpp_list__init(struct perf_hpp_list *list); +enum hierarchy_move_dir { + HMD_NORMAL, + HMD_FORCE_SIBLING, + HMD_FORCE_CHILD, +}; + +struct rb_node *rb_hierarchy_last(struct rb_node *node); +struct rb_node *__rb_hierarchy_next(struct rb_node *node, + enum hierarchy_move_dir hmd); +struct rb_node *rb_hierarchy_prev(struct rb_node *node); + +static inline struct rb_node *rb_hierarchy_next(struct rb_node *node) +{ + return __rb_hierarchy_next(node, HMD_NORMAL); +} + #endif /* __PERF_HIST_H */ |