diff options
Diffstat (limited to 'erts/emulator/sys')
| -rw-r--r-- | erts/emulator/sys/unix/sys.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index 2ce0d56dde..a099662b16 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -408,6 +408,7 @@ erts_sys_pre_init(void) sigemptyset(&thr_create_sigmask); sigaddset(&thr_create_sigmask, SIGINT); /* block interrupt */ sigaddset(&thr_create_sigmask, SIGTERM); /* block terminate signal */ + sigaddset(&thr_create_sigmask, SIGHUP); /* block sighups */ sigaddset(&thr_create_sigmask, SIGUSR1); /* block user defined signal */ #endif @@ -625,6 +626,28 @@ int erts_sys_prepare_crash_dump(int secs) return prepare_crash_dump(secs); } +static void signal_notify_requested(Eterm type) { + Process* p = NULL; + Eterm msg, *hp; + ErtsProcLocks locks = 0; + ErlOffHeap *ohp; + + Eterm id = erts_whereis_name_to_id(NULL, am_erl_signal_server); + + if ((p = (erts_pid2proc_opt(NULL, 0, id, 0, ERTS_P2P_FLG_INC_REFC))) != NULL) { + ErtsMessage *msgp = erts_alloc_message_heap(p, &locks, 3, &hp, &ohp); + + /* erl_signal_server ! {notify, sighup} */ + msg = TUPLE2(hp, am_notify, type); + erts_queue_message(p, locks, msgp, msg, am_system); + + if (locks) + erts_smp_proc_unlock(p, locks); + erts_proc_dec_refc(p); + } +} + + static ERTS_INLINE void break_requested(void) { @@ -783,10 +806,24 @@ static RETSIGTYPE do_quit(int signum) #endif } +#if (defined(SIG_SIGSET) || defined(SIG_SIGNAL)) +static RETSIGTYPE request_sighup(void) +#else +static RETSIGTYPE request_sighup(int signum) +#endif +{ +#ifdef ERTS_SMP + smp_sig_notify('H'); +#else + signal_notify_requested(am_sighup); +#endif +} + /* Disable break */ void erts_set_ignore_break(void) { sys_signal(SIGINT, SIG_IGN); sys_signal(SIGTERM, SIG_IGN); + sys_signal(SIGHUP, SIG_IGN); sys_signal(SIGQUIT, SIG_IGN); sys_signal(SIGTSTP, SIG_IGN); } @@ -813,6 +850,7 @@ void init_break_handler(void) { sys_signal(SIGINT, request_break); sys_signal(SIGTERM, request_stop); + sys_signal(SIGHUP, request_sighup); #ifndef ETHR_UNUSABLE_SIGUSRX sys_signal(SIGUSR1, user_signal1); #endif /* #ifndef ETHR_UNUSABLE_SIGUSRX */ @@ -1289,6 +1327,9 @@ signal_dispatcher_thread_func(void *unused) switch (buf[i]) { case 0: /* Emulator initialized */ break; + case 'H': /* SIGHUP */ + signal_notify_requested(am_sighup); + break; case 'S': /* SIGTERM */ stop_requested(); break; |