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perf report: Support a new key to reload the browser

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Sometimes we may need to reload the browser to update the output since
some options are changed.

This patch creates a new key K_RELOAD. Once the __cmd_report() returns
K_RELOAD, it would repeat the whole process, such as, read samples from
data file, sort the data and display in the browser.

 v5:
 ---
 1. Fix the 'make NO_SLANG=1' error. Define K_RELOAD in util/hist.h.
 2. Skip setup_sorting() in repeat path if last key is K_RELOAD.

 v4:
 ---
 Need to quit in perf_evsel_menu__run if key is K_RELOAD.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200220013616.19916-3-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao
2020-02-20 09:36:15 +08:00
committed by Arnaldo Carvalho de Melo
parent 429a5f9d89
commit 5e3b810aac
4 changed files with 6 additions and 3 deletions
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1
tools/perf/util/hist.h
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@@ -536,6 +536,7 @@ static inline int block_hists_tui_browse(struct block_hist *bh __maybe_unused,
#define K_LEFT -1000
#define K_RIGHT -2000
#define K_SWITCH_INPUT_DATA -3000
#define K_RELOAD -4000
#endif
unsigned int hists__sort_list_width(struct hists *hists);