diff options
| author | Lukas Larsson <[email protected]> | 2017-05-22 17:28:11 +0200 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2017-10-12 17:34:57 +0200 |
| commit | 19c5a5f7f15d02395694b32090d1b24c3934c5d8 (patch) | |
| tree | 000235e7e3ee80978a9c20f5a50dd5c344b4c792 /erts/emulator/beam | |
| parent | 4c42d5b93e32444f185043e74c9b408cd76dc661 (diff) | |
| download | otp-19c5a5f7f15d02395694b32090d1b24c3934c5d8.tar.gz otp-19c5a5f7f15d02395694b32090d1b24c3934c5d8.tar.bz2 otp-19c5a5f7f15d02395694b32090d1b24c3934c5d8.zip | |
erts: Use SIGRTMIN on linux for sys_suspend
The Linux real-time signal is better used on Linux
for suspending schedulers during shutdown as it doesn't
collide with SIGUSR2 usage of other applications.
Diffstat (limited to 'erts/emulator/beam')
| -rw-r--r-- | erts/emulator/beam/erl_bif_info.c | 6 | ||||
| -rw-r--r-- | erts/emulator/beam/sys.h | 11 |
2 files changed, 14 insertions, 3 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 2ff95a3338..162d179982 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3699,6 +3699,12 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1) Eterm *hp = HAlloc(BIF_P, hsz); BIF_RET(uword_to_big(size, hp)); } + } else if (ERTS_IS_ATOM_STR("scheduler_dump", BIF_ARG_1)) { +#if defined(ERTS_HAVE_TRY_CATCH) && defined(ERTS_SYS_SUSPEND_SIGNAL) + BIF_RET(am_true); +#else + BIF_RET(am_false); +#endif } } else if (is_tuple(BIF_ARG_1)) { diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 615f44364b..9dc339053f 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -832,11 +832,16 @@ int erts_sys_unsetenv(char *key); char *erts_read_env(char *key); void erts_free_read_env(void *value); -#if defined(ERTS_THR_HAVE_SIG_FUNCS) && !defined(ETHR_UNUSABLE_SIGUSRX) +#if defined(ERTS_THR_HAVE_SIG_FUNCS) && \ + (!defined(ETHR_UNUSABLE_SIGUSRX) || defined(SIGRTMIN)) extern void sys_thr_resume(erts_tid_t tid); extern void sys_thr_suspend(erts_tid_t tid); -#define ERTS_SYS_SUSPEND_SIGNAL SIGUSR2 -#endif +#ifdef SIGRTMIN +#define ERTS_SYS_SUSPEND_SIGNAL (SIGRTMIN+1) +#else +#define ERTS_SYS_SUSPEND_SIGNAL (SIGUSR2) +#endif /* SIGRTMIN */ +#endif /* HAVE_SIG_FUNCS */ /* utils.c */ |