linux-kernel - [PATCH] perf tools: Make Ctrl-C stop processing on TUI

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Message-Id: <1432856452-10631-1-git-send-email-namhyung@kernel.org>
Date:	Fri, 29 May 2015 08:40:52 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>
Subject: [PATCH] perf tools: Make Ctrl-C stop processing on TUI

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).

[1] http://jedsoft.org/slang/doc/html/cslang-6.html#ss6.1

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/ui/tui/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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;
 
-- 
2.4.1

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