diff options
Diffstat (limited to 'erts/emulator/sys/unix/sys.c')
| -rw-r--r-- | erts/emulator/sys/unix/sys.c | 33 |
1 files changed, 6 insertions, 27 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index 503ef5c2f6..2ad5f3b4d5 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -49,7 +49,6 @@ #include <sys/ioctl.h> #endif -#define NEED_CHILD_SETUP_DEFINES #define ERTS_WANT_BREAK_HANDLING #define ERTS_WANT_GOT_SIGUSR1 #define WANT_NONBLOCKING /* must define this to pull in defs from sys.h */ @@ -93,6 +92,7 @@ extern void erts_sys_init_float(void); extern void erl_crash_dump(char* file, int line, char* fmt, ...); + #ifdef DEBUG static int debug_log = 0; #endif @@ -122,6 +122,7 @@ static void smp_sig_notify(char c); static int sig_notify_fds[2] = {-1, -1}; static int sig_suspend_fds[2] = {-1, -1}; +#define ERTS_SYS_SUSPEND_SIGNAL SIGUSR2 #endif @@ -307,9 +308,10 @@ MALLOC_USE_HASH(1); #ifdef USE_THREADS #ifdef ERTS_THR_HAVE_SIG_FUNCS + /* * Child thread inherits parents signal mask at creation. In order to - * guarantee that the main thread will receive all SIGINT, SIGCHLD, and + * guarantee that the main thread will receive all SIGINT, and * SIGUSR1 signals sent to the process, we block these signals in the * parent thread when creating a new thread. */ @@ -405,7 +407,6 @@ erts_sys_pre_init(void) #ifdef ERTS_THR_HAVE_SIG_FUNCS sigemptyset(&thr_create_sigmask); sigaddset(&thr_create_sigmask, SIGINT); /* block interrupt */ - sigaddset(&thr_create_sigmask, SIGCHLD); /* block child signals */ sigaddset(&thr_create_sigmask, SIGUSR1); /* block user defined signal */ #endif @@ -1010,7 +1011,6 @@ erts_sys_unsetenv(char *key) void sys_init_io(void) { - } #if (0) /* unused? */ @@ -1204,7 +1204,6 @@ erl_debug(char* fmt, ...) #endif /* DEBUG */ - /* * Called from schedule() when it runs out of runnable processes, * or when Erlang code has performed INPUT_REDUCTIONS reduction @@ -1213,15 +1212,11 @@ erl_debug(char* fmt, ...) void erl_sys_schedule(int runnable) { -#ifdef ERTS_SMP ERTS_CHK_IO(!runnable); -#else - ERTS_CHK_IO(runnable ? 0 : !check_children()); -#endif ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking()); - (void) check_children(); } + #ifdef ERTS_SMP static erts_smp_tid_t sig_dispatcher_tid; @@ -1246,10 +1241,6 @@ smp_sig_notify(char c) static void * signal_dispatcher_thread_func(void *unused) { -#if !CHLDWTHR - int initialized = 0; - int notify_check_children = 0; -#endif #ifdef ERTS_ENABLE_LOCK_CHECK erts_lc_set_thread_name("signal_dispatcher"); #endif @@ -1287,19 +1278,7 @@ signal_dispatcher_thread_func(void *unused) */ switch (buf[i]) { case 0: /* Emulator initialized */ -#if !CHLDWTHR - initialized = 1; - if (!notify_check_children) -#endif - break; -#if !CHLDWTHR - case 'C': /* SIGCHLD */ - if (initialized) - erts_smp_notify_check_children_needed(); - else - notify_check_children = 1; - break; -#endif + break; case 'I': /* SIGINT */ break_requested(); break; |