diff options
Diffstat (limited to 'tools/perf/ui/tui/helpline.c')
| -rw-r--r-- | tools/perf/ui/tui/helpline.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/tools/perf/ui/tui/helpline.c b/tools/perf/ui/tui/helpline.c index 1c8b9afd5d6e..b39451314f43 100644 --- a/tools/perf/ui/tui/helpline.c +++ b/tools/perf/ui/tui/helpline.c @@ -1,14 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <pthread.h> +#include <linux/kernel.h> +#include <linux/string.h> -#include "../../util/debug.h" #include "../helpline.h" #include "../ui.h" #include "../libslang.h" char ui_helpline__last_msg[1024]; +bool tui_helpline__set; static void tui_helpline__pop(void) { @@ -20,9 +22,9 @@ static void tui_helpline__push(const char *msg) SLsmg_gotorc(SLtt_Screen_Rows - 1, 0); SLsmg_set_color(0); - SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols); + SLsmg_write_nstring(msg, SLtt_Screen_Cols); SLsmg_refresh(); - strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0'; + strlcpy(ui_helpline__current, msg, sz); } static int tui_helpline__show(const char *format, va_list ap) @@ -30,17 +32,19 @@ static int tui_helpline__show(const char *format, va_list ap) int ret; static int backlog; - pthread_mutex_lock(&ui__lock); + mutex_lock(&ui__lock); ret = vscnprintf(ui_helpline__last_msg + backlog, sizeof(ui_helpline__last_msg) - backlog, format, ap); backlog += ret; + tui_helpline__set = true; + if (ui_helpline__last_msg[backlog - 1] == '\n') { ui_helpline__puts(ui_helpline__last_msg); SLsmg_refresh(); backlog = 0; } - pthread_mutex_unlock(&ui__lock); + mutex_unlock(&ui__lock); return ret; } |