perf tui: Catch signals to exit gracefully
Resetting the terminal to a sane state. Reported-by: Ingo Molnar <mingo@elte.hu> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-myu44ujofadcy3y6an2mk383@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -7,6 +7,7 @@
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#include "browser.h"
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#include "browser.h"
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#include "helpline.h"
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#include "helpline.h"
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#include "ui.h"
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#include "ui.h"
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#include "libslang.h"
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pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
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pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
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@ -17,6 +18,21 @@ static void newt_suspend(void *d __used)
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newtResume();
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newtResume();
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}
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}
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static void ui__exit(void)
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{
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SLtt_set_cursor_visibility(1);
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SLsmg_refresh();
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SLsmg_reset_smg();
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SLang_reset_tty();
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}
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static void ui__signal(int sig)
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{
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ui__exit();
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psignal(sig, "perf");
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exit(0);
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}
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void setup_browser(bool fallback_to_pager)
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void setup_browser(bool fallback_to_pager)
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{
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{
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if (!isatty(1) || !use_browser || dump_trace) {
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if (!isatty(1) || !use_browser || dump_trace) {
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@ -32,6 +48,12 @@ void setup_browser(bool fallback_to_pager)
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newtSetSuspendCallback(newt_suspend, NULL);
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newtSetSuspendCallback(newt_suspend, NULL);
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ui_helpline__init();
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ui_helpline__init();
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ui_browser__init();
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ui_browser__init();
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signal(SIGSEGV, ui__signal);
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signal(SIGFPE, ui__signal);
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signal(SIGINT, ui__signal);
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signal(SIGQUIT, ui__signal);
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signal(SIGTERM, ui__signal);
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}
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}
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void exit_browser(bool wait_for_ok)
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void exit_browser(bool wait_for_ok)
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@ -41,6 +63,6 @@ void exit_browser(bool wait_for_ok)
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char title[] = "Fatal Error", ok[] = "Ok";
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char title[] = "Fatal Error", ok[] = "Ok";
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newtWinMessage(title, ok, ui_helpline__last_msg);
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newtWinMessage(title, ok, ui_helpline__last_msg);
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}
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}
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newtFinished();
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ui__exit();
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}
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}
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}
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}
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