diff options
| -rw-r--r-- | src/launcher-util.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/src/launcher-util.c b/src/launcher-util.c index ac764dc8..ad81aef7 100644 --- a/src/launcher-util.c +++ b/src/launcher-util.c @@ -342,9 +342,21 @@ setup_tty(struct weston_launcher *launcher, int tty) goto err_close; } + /* + * SIGRTMIN is used as global VT-acquire+release signal. Note that + * SIGRT* must be tested on runtime, as their exact values are not + * known at compile-time. POSIX requires 32 of them to be available. + */ + if (SIGRTMIN > SIGRTMAX) { + weston_log("not enough RT signals available: %u-%u\n", + SIGRTMIN, SIGRTMAX); + ret = -EINVAL; + goto err_close; + } + mode.mode = VT_PROCESS; - mode.relsig = SIGUSR1; - mode.acqsig = SIGUSR1; + mode.relsig = SIGRTMIN; + mode.acqsig = SIGRTMIN; if (ioctl(launcher->tty, VT_SETMODE, &mode) < 0) { weston_log("failed to take control of vt handling\n"); goto err_close; @@ -352,7 +364,7 @@ setup_tty(struct weston_launcher *launcher, int tty) loop = wl_display_get_event_loop(launcher->compositor->wl_display); launcher->vt_source = - wl_event_loop_add_signal(loop, SIGUSR1, vt_handler, launcher); + wl_event_loop_add_signal(loop, SIGRTMIN, vt_handler, launcher); if (!launcher->vt_source) goto err_close; |