diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/ui/helpline.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/util/ui/helpline.c b/tools/perf/util/ui/helpline.c index 6a11e1301559..ff584606a4dc 100644 --- a/tools/perf/util/ui/helpline.c +++ b/tools/perf/util/ui/helpline.c @@ -3,6 +3,7 @@ #include <stdlib.h> #include <newt.h> +#include "../debug.h" #include "helpline.h" void ui_helpline__pop(void) @@ -41,3 +42,28 @@ void ui_helpline__puts(const char *msg) ui_helpline__pop(); ui_helpline__push(msg); } + +void ui_helpline__init(void) +{ + ui_helpline__puts(" "); +} + +char ui_helpline__last_msg[1024]; + +int ui_helpline__show_help(const char *format, va_list ap) +{ + int ret; + static int backlog; + + ret = vsnprintf(ui_helpline__last_msg + backlog, + sizeof(ui_helpline__last_msg) - backlog, format, ap); + backlog += ret; + + if (ui_helpline__last_msg[backlog - 1] == '\n') { + ui_helpline__puts(ui_helpline__last_msg); + newtRefresh(); + backlog = 0; + } + + return ret; +} |