perf ui: Improve handling sigwinch a bit
No need to unblock it at each ui__getch() and also allow other users to
check if a resize is needed, or force an refresh of terminal dimensions.
The 'force' one shouldn't be needed, but its in a slow path, so leave it
like that for now, I'll revisit this another day.
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-aujchu6yx3bfy64non1rky0w@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/ui/util.h b/tools/perf/util/ui/util.h
index afcbc1d..e53c3d3 100644
--- a/tools/perf/util/ui/util.h
+++ b/tools/perf/util/ui/util.h
@@ -3,6 +3,7 @@
#include <stdbool.h>
+int ui__getch(int delay_secs);
int ui__popup_menu(int argc, char * const argv[]);
int ui__help_window(const char *text);
bool ui__dialog_yesno(const char *msg);
