diff options
Diffstat (limited to 'tools/perf/ui/tui/setup.c')
| -rw-r--r-- | tools/perf/ui/tui/setup.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index 605d9e175ea7..16c6eff4d241 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -2,12 +2,14 @@ #include <signal.h> #include <stdbool.h> #include <stdlib.h> +#include <termios.h> #include <unistd.h> #include <linux/kernel.h> #ifdef HAVE_BACKTRACE_SUPPORT #include <execinfo.h> #endif +#include "../../util/color.h" #include "../../util/debug.h" #include "../browser.h" #include "../helpline.h" @@ -121,6 +123,23 @@ static void ui__signal(int sig) exit(0); } +static void ui__sigcont(int sig) +{ + static struct termios tty; + + if (sig == SIGTSTP) { + while (tcgetattr(SLang_TT_Read_FD, &tty) == -1 && errno == EINTR) + ; + while (write(SLang_TT_Read_FD, PERF_COLOR_RESET, sizeof(PERF_COLOR_RESET) - 1) == -1 && errno == EINTR) + ; + raise(SIGSTOP); + } else { + while (tcsetattr(SLang_TT_Read_FD, TCSADRAIN, &tty) == -1 && errno == EINTR) + ; + raise(SIGWINCH); + } +} + int ui__init(void) { int err; @@ -135,6 +154,7 @@ int ui__init(void) err = SLang_init_tty(-1, 0, 0); if (err < 0) goto out; + SLtty_set_suspend_state(true); err = SLkp_init(); if (err < 0) { @@ -149,6 +169,8 @@ int ui__init(void) signal(SIGINT, ui__signal); signal(SIGQUIT, ui__signal); signal(SIGTERM, ui__signal); + signal(SIGTSTP, ui__sigcont); + signal(SIGCONT, ui__sigcont); perf_error__register(&perf_tui_eops); |