It was inconvenient that perf cannot be quit with SIGINT during processing samples on TUI especially for large data files.
This was because the first argument of SLang_init_tty(), abort_char, being 0. The manual says it's the ascii value of the control character that will be used to generate the interrupt signal [1]. Passing -1 means to use the default value (Ctrl-C). However, after processing samples, Ctrl-C was used to in other cases as well - like stepping back from annotate. So recover the original behavior after processing. [1] http://jedsoft.org/slang/doc/html/cslang-6.html#ss6.1 Signed-off-by: Namhyung Kim <[email protected]> --- tools/perf/ui/browsers/annotate.c | 4 ++++ tools/perf/ui/browsers/hists.c | 4 ++++ tools/perf/ui/tui/setup.c | 2 +- 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index e5250eb2dd57..acb0e23b138e 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -838,6 +838,10 @@ int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel, int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel, struct hist_browser_timer *hbt) { + /* reset abort key so that it can get Ctrl-C as a key */ + SLang_reset_tty(); + SLang_init_tty(0, 0, 0); + return map_symbol__tui_annotate(&he->ms, evsel, hbt); } diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index f981cb8f0158..e64893f2fd7f 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1741,6 +1741,10 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, if (browser == NULL) return -1; + /* reset abort key so that it can get Ctrl-C as a key */ + SLang_reset_tty(); + SLang_init_tty(0, 0, 0); + if (min_pcnt) { browser->min_pcnt = min_pcnt; hist_browser__update_nr_entries(browser); diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index b77e1d771363..60d1f29b4b50 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -129,7 +129,7 @@ int ui__init(void) err = SLsmg_init_smg(); if (err < 0) goto out; - err = SLang_init_tty(0, 0, 0); + err = SLang_init_tty(-1, 0, 0); if (err < 0) goto out; -- 2.4.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
