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-rw-r--r--tools/perf/util/ui/helpline.c43
-rw-r--r--tools/perf/util/ui/helpline.h9
2 files changed, 52 insertions, 0 deletions
diff --git a/tools/perf/util/ui/helpline.c b/tools/perf/util/ui/helpline.c
new file mode 100644
index 0000000..6a11e130
--- /dev/null
+++ b/tools/perf/util/ui/helpline.c
@@ -0,0 +1,43 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <newt.h>
+
+#include "helpline.h"
+
+void ui_helpline__pop(void)
+{
+ newtPopHelpLine();
+}
+
+void ui_helpline__push(const char *msg)
+{
+ newtPushHelpLine(msg);
+}
+
+static void ui_helpline__vpush(const char *fmt, va_list ap)
+{
+ char *s;
+
+ if (vasprintf(&s, fmt, ap) < 0)
+ vfprintf(stderr, fmt, ap);
+ else {
+ ui_helpline__push(s);
+ free(s);
+ }
+}
+
+void ui_helpline__fpush(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ ui_helpline__vpush(fmt, ap);
+ va_end(ap);
+}
+
+void ui_helpline__puts(const char *msg)
+{
+ ui_helpline__pop();
+ ui_helpline__push(msg);
+}
diff --git a/tools/perf/util/ui/helpline.h b/tools/perf/util/ui/helpline.h
new file mode 100644
index 0000000..56d8c1d
--- /dev/null
+++ b/tools/perf/util/ui/helpline.h
@@ -0,0 +1,9 @@
+#ifndef _PERF_UI_HELPLINE_H_
+#define _PERF_UI_HELPLINE_H_ 1
+
+void ui_helpline__pop(void);
+void ui_helpline__push(const char *msg);
+void ui_helpline__fpush(const char *fmt, ...);
+void ui_helpline__puts(const char *msg);
+
+#endif /* _PERF_UI_HELPLINE_H_ */
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