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authorSverker Eriksson <[email protected]>2017-04-24 20:08:53 +0200
committerLukas Larsson <[email protected]>2017-09-15 10:04:42 +0200
commitba93bbc768928bb6213cd583ea91a108fa9d16ca (patch)
treed01f42f2cc16bd528ab1c226fa91b250912cc219
parent5c7a869b8d0e4aeec9902a1316d672860790076c (diff)
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erts: Refactor move check_io interface from sys to check_io
# Conflicts: # erts/emulator/beam/erl_process.c # erts/emulator/beam/sys.h # erts/emulator/sys/common/erl_check_io.c # erts/emulator/sys/common/erl_check_io.h # erts/emulator/sys/unix/sys.c
-rw-r--r--erts/emulator/beam/erl_bif_info.c1
-rw-r--r--erts/emulator/beam/erl_port_task.c1
-rw-r--r--erts/emulator/beam/erl_process.c9
-rw-r--r--erts/emulator/beam/sys.h4
-rw-r--r--erts/emulator/sys/common/erl_check_io.c153
-rw-r--r--erts/emulator/sys/common/erl_check_io.h33
-rw-r--r--erts/emulator/sys/unix/sys.c129
-rw-r--r--erts/emulator/sys/win32/sys.c13
8 files changed, 150 insertions, 193 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 36939d6acc..d296e794d5 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -46,6 +46,7 @@
#include "erl_thr_progress.h"
#include "erl_bif_unique.h"
#include "erl_map.h"
+#include "erl_check_io.h"
#define ERTS_PTAB_WANT_DEBUG_FUNCS__
#include "erl_ptab.h"
#include "erl_time.h"
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 14977dfa17..b9152a7b5e 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -36,6 +36,7 @@
#include "erl_check_io.h"
#include "dtrace-wrapper.h"
#include "lttng-wrapper.h"
+#include "erl_check_io.h"
#include <stdarg.h>
/*
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index 1f696f7ba4..9c92d2a1a4 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -49,6 +49,7 @@
#define ERTS_WANT_TIMER_WHEEL_API
#include "erl_time.h"
#include "erl_nfunc_sched.h"
+#include "erl_check_io.h"
#define ERTS_CHECK_TIME_REDS CONTEXT_REDS
#define ERTS_DELAYED_WAKEUP_INFINITY (~(Uint64) 0)
@@ -1563,14 +1564,14 @@ erts_sched_finish_poke(ErtsSchedulerSleepInfo *ssi, erts_aint32_t flags)
{
switch (flags & ERTS_SSI_FLGS_SLEEP_TYPE) {
case ERTS_SSI_FLG_POLL_SLEEPING:
- erts_sys_schedule_interrupt(1);
+ erts_check_io_interrupt(1);
break;
case ERTS_SSI_FLG_POLL_SLEEPING|ERTS_SSI_FLG_TSE_SLEEPING:
/*
* Thread progress blocking while poll sleeping; need
* to signal on both...
*/
- erts_sys_schedule_interrupt(1);
+ erts_check_io_interrupt(1);
/* fall through */
case ERTS_SSI_FLG_TSE_SLEEPING:
erts_tse_set(ssi->event);
@@ -3084,7 +3085,7 @@ sched_set_sleeptype(ErtsSchedulerSleepInfo *ssi, erts_aint32_t sleep_type)
erts_tse_reset(ssi->event);
else {
ASSERT(sleep_type == ERTS_SSI_FLG_POLL_SLEEPING);
- erts_sys_schedule_interrupt(0);
+ erts_check_io_interrupt(0);
}
while (1) {
@@ -10049,7 +10050,7 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
fcalls = 0;
#if 0 /* Not needed since we wont wait in sys schedule */
- erts_sys_schedule_interrupt(0);
+ erts_check_io_interrupt(0);
#endif
erts_runq_unlock(rq);
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 68ef0a23f3..3dd6ef333b 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -575,8 +575,6 @@ __decl_noreturn void __noreturn erts_exit(int n, char*, ...);
erts_exit(ERTS_ABORT_EXIT, "%s:%d:%s(): Internal error: %s\n", \
__FILE__, __LINE__, __func__, What)
-Eterm erts_check_io_info(void *p);
-
UWord erts_sys_get_page_size(void);
/* Size of misc memory allocated from system dependent code */
@@ -739,8 +737,6 @@ extern char *erts_sys_ddll_error(int code);
/*
* System interfaces for startup.
*/
-void erts_sys_schedule_interrupt(int set);
-void erts_sys_schedule_interrupt_timed(int, ErtsMonotonicTime);
void erts_sys_main_thread(void);
extern int erts_sys_prepare_crash_dump(int secs);
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index f0854e8730..bed815c64b 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -110,6 +110,23 @@ static struct pollset_info
}pollset;
#define NUM_OF_POLLSETS 1
+
+#ifdef ERTS_ENABLE_KERNEL_POLL
+void erts_init_check_io_kp(void);
+void erts_init_check_io_nkp(void);
+int ERTS_CIO_EXPORT(driver_select)(ErlDrvPort, ErlDrvEvent, int, int);
+int ERTS_CIO_EXPORT(enif_select)(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
+int ERTS_CIO_EXPORT(driver_event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
+Uint ERTS_CIO_EXPORT(erts_check_io_size)(void);
+Eterm ERTS_CIO_EXPORT(erts_check_io_info)(void *);
+int ERTS_CIO_EXPORT(erts_check_io_max_files)(void);
+void ERTS_CIO_EXPORT(erts_check_io_interrupt)(int);
+void ERTS_CIO_EXPORT(erts_check_io_interrupt_timed)(int, ErtsMonotonicTime);
+void ERTS_CIO_EXPORT(erts_check_io)(int);
+int ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *);
+#endif
+
+
typedef struct {
#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
SafeHashBucket hb;
@@ -2098,7 +2115,6 @@ eready(Eterm id, ErtsDrvEventState *state, ErlDrvEventData event_data,
static void bad_fd_in_pollset(ErtsDrvEventState *, Eterm inport, Eterm outport);
-
void
ERTS_CIO_EXPORT(erts_check_io_interrupt)(int set)
{
@@ -2142,12 +2158,6 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
erts_do_break_handling();
#endif
-#ifdef ERTS_SIGNAL_STATE /* ifndef ERTS_SMP */
- if (ERTS_SIGNAL_STATE) {
- erts_handle_signal_state();
- }
-#endif
-
/* Figure out timeout value */
timeout_time = (do_wait
? erts_check_next_timeout_time(esdp)
@@ -2186,14 +2196,6 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
erts_do_break_handling();
#endif
-
-#ifdef ERTS_SIGNAL_STATE /* ifndef ERTS_SMP */
- if (ERTS_SIGNAL_STATE) {
- erts_handle_signal_state();
- }
-#endif
-
-
if (poll_ret != 0) {
erts_atomic_set_nob(&pollset.in_poll_wait, 0);
forget_removed(&pollset);
@@ -2259,9 +2261,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
oready(state->driver.select->outport, state, current_cio_time);
}
/* Someone might have deselected input since revents
- was read (true also on the non-smp emulator since
- oready() may have been called); therefore, update
- revents... */
+ was read therefore, update revents... */
revents &= state->events;
if (revents & ERTS_POLL_EV_IN) {
iready(state->driver.select->inport, state, current_cio_time);
@@ -2502,6 +2502,31 @@ static void drv_ev_state_free(void *des)
}
#endif
+
+#ifdef ERTS_ENABLE_KERNEL_POLL
+
+struct io_functions {
+ int (*select)(ErlDrvPort, ErlDrvEvent, int, int);
+ int (*enif_select)(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
+ int (*event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
+ void (*check_io_as_interrupt)(void);
+ void (*check_io_interrupt)(int);
+ void (*check_io_interrupt_tmd)(int, ErtsMonotonicTime);
+ void (*check_io)(int);
+ int (*max_files)(void);
+ Uint (*size)(void);
+ Eterm (*info)(void *);
+ int (*check_io_debug)(ErtsCheckIoDebugInfo *);
+};
+
+# ifdef ERTS_KERNEL_POLL_VERSION
+struct io_functions erts_io_funcs = {0};
+# else
+extern struct io_functions erts_io_funcs;
+# endif
+
+#endif /* ERTS_ENABLE_KERNEL_POLL */
+
void
ERTS_CIO_EXPORT(erts_init_check_io)(void)
{
@@ -2512,6 +2537,20 @@ ERTS_CIO_EXPORT(erts_init_check_io)(void)
erts_atomic_init_nob(&erts_check_io_time, 0);
erts_atomic_init_nob(&pollset.in_poll_wait, 0);
+#ifdef ERTS_ENABLE_KERNEL_POLL
+ ASSERT(erts_io_funcs.select == NULL);
+ erts_io_funcs.select = ERTS_CIO_EXPORT(driver_select);
+ erts_io_funcs.enif_select = ERTS_CIO_EXPORT(enif_select);
+ erts_io_funcs.event = ERTS_CIO_EXPORT(driver_event);
+ erts_io_funcs.check_io_interrupt = ERTS_CIO_EXPORT(erts_check_io_interrupt);
+ erts_io_funcs.check_io_interrupt_tmd= ERTS_CIO_EXPORT(erts_check_io_interrupt_timed);
+ erts_io_funcs.check_io = ERTS_CIO_EXPORT(erts_check_io);
+ erts_io_funcs.max_files = ERTS_CIO_EXPORT(erts_check_io_max_files);
+ erts_io_funcs.size = ERTS_CIO_EXPORT(erts_check_io_size);
+ erts_io_funcs.info = ERTS_CIO_EXPORT(erts_check_io_info);
+ erts_io_funcs.check_io_debug = ERTS_CIO_EXPORT(erts_check_io_debug);
+#endif
+
ERTS_CIO_POLL_INIT();
pollset.ps = ERTS_CIO_NEW_POLLSET();
@@ -3097,7 +3136,7 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *ciodip)
}
#ifdef ERTS_ENABLE_LOCK_COUNT
-void ERTS_CIO_EXPORT(erts_lcnt_update_cio_locks)(int enable) {
+void erts_lcnt_update_cio_locks(int enable) {
#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
erts_lcnt_enable_hash_lock_count(&drv_ev_state_tab, ERTS_LOCK_FLAGS_CATEGORY_IO, enable);
#else
@@ -3105,3 +3144,79 @@ void ERTS_CIO_EXPORT(erts_lcnt_update_cio_locks)(int enable) {
#endif
}
#endif /* ERTS_ENABLE_LOCK_COUNT */
+
+
+#ifdef ERTS_ENABLE_KERNEL_POLL
+# ifdef ERTS_KERNEL_POLL_VERSION
+
+/*
+ * Compile these only once for kp/nkp
+ */
+
+void erts_init_check_io(void)
+{
+ if (erts_use_kernel_poll)
+ erts_init_check_io_kp();
+ else
+ erts_init_check_io_nkp();
+}
+
+int
+driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on)
+{
+ return (*erts_io_funcs.select)(port, event, mode, on);
+}
+
+int
+driver_event(ErlDrvPort port, ErlDrvEvent event, ErlDrvEventData event_data)
+{
+ return (*erts_io_funcs.event)(port, event, event_data);
+}
+
+int enif_select(ErlNifEnv* env, ErlNifEvent event,
+ enum ErlNifSelectFlags flags, void* obj, const ErlNifPid* pid, Eterm ref)
+{
+ return (*erts_io_funcs.enif_select)(env, event, flags, obj, pid, ref);
+}
+
+void erts_check_io(int do_wait)
+{
+ erts_io_funcs.check_io(do_wait);
+}
+
+Uint erts_check_io_size(void)
+{
+ return erts_io_funcs.size();
+}
+
+
+Eterm erts_check_io_info(void *p)
+{
+ return (*erts_io_funcs.info)(p);
+}
+
+int erts_check_io_max_files(void)
+{
+ return erts_io_funcs.max_files();
+}
+
+int
+erts_check_io_debug(ErtsCheckIoDebugInfo *ip)
+{
+ return (*erts_io_funcs.check_io_debug)(ip);
+}
+
+void erts_check_io_interrupt(int set)
+{
+ erts_io_funcs.check_io_interrupt(set);
+}
+
+void erts_check_io_interrupt_timed(int set,
+ ErtsMonotonicTime timeout_time)
+{
+ erts_io_funcs.check_io_interrupt_tmd(set, timeout_time);
+}
+
+#endif /* ERTS_KERNEL_POLL_VERSION */
+
+#endif /* !ERTS_ENABLE_KERNEL_POLL */
diff --git a/erts/emulator/sys/common/erl_check_io.h b/erts/emulator/sys/common/erl_check_io.h
index 777942a473..c4ab22aaff 100644
--- a/erts/emulator/sys/common/erl_check_io.h
+++ b/erts/emulator/sys/common/erl_check_io.h
@@ -30,38 +30,6 @@
#include "sys.h"
#include "erl_sys_driver.h"
-#ifdef ERTS_ENABLE_KERNEL_POLL
-
-int driver_select_kp(ErlDrvPort, ErlDrvEvent, int, int);
-int driver_select_nkp(ErlDrvPort, ErlDrvEvent, int, int);
-int enif_select_kp(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
-int enif_select_nkp(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
-int driver_event_kp(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
-int driver_event_nkp(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
-Uint erts_check_io_size_kp(void);
-Uint erts_check_io_size_nkp(void);
-Eterm erts_check_io_info_kp(void *);
-Eterm erts_check_io_info_nkp(void *);
-int erts_check_io_max_files_kp(void);
-int erts_check_io_max_files_nkp(void);
-void erts_check_io_interrupt_kp(int);
-void erts_check_io_interrupt_nkp(int);
-void erts_check_io_interrupt_timed_kp(int, ErtsMonotonicTime);
-void erts_check_io_interrupt_timed_nkp(int, ErtsMonotonicTime);
-void erts_check_io_kp(int);
-void erts_check_io_nkp(int);
-void erts_init_check_io_kp(void);
-void erts_init_check_io_nkp(void);
-int erts_check_io_debug_kp(ErtsCheckIoDebugInfo *);
-int erts_check_io_debug_nkp(ErtsCheckIoDebugInfo *);
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
-void erts_lcnt_update_cio_locks_kp(int enable);
-void erts_lcnt_update_cio_locks_nkp(int enable);
-#endif
-
-#else /* !ERTS_ENABLE_KERNEL_POLL */
-
Uint erts_check_io_size(void);
Eterm erts_check_io_info(void *);
int erts_check_io_max_files(void);
@@ -69,7 +37,6 @@ void erts_check_io_interrupt(int);
void erts_check_io_interrupt_timed(int, ErtsMonotonicTime);
void erts_check_io(int);
void erts_init_check_io(void);
-
#ifdef ERTS_ENABLE_LOCK_COUNT
void erts_lcnt_update_cio_locks(int enable);
#endif
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index d05028cabc..e88d7aa6df 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -131,121 +131,6 @@ static int replace_intr = 0;
/* assume yes initially, ttsl_init will clear it */
int using_oldshell = 1;
-#ifdef ERTS_ENABLE_KERNEL_POLL
-
-int erts_use_kernel_poll = 0;
-
-struct {
- int (*select)(ErlDrvPort, ErlDrvEvent, int, int);
- int (*enif_select)(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
- int (*event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
- void (*check_io_as_interrupt)(void);
- void (*check_io_interrupt)(int);
- void (*check_io_interrupt_tmd)(int, ErtsMonotonicTime);
- void (*check_io)(int);
- Uint (*size)(void);
- Eterm (*info)(void *);
- int (*check_io_debug)(ErtsCheckIoDebugInfo *);
-} io_func = {0};
-
-
-int
-driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on)
-{
- return (*io_func.select)(port, event, mode, on);
-}
-
-int
-driver_event(ErlDrvPort port, ErlDrvEvent event, ErlDrvEventData event_data)
-{
- return (*io_func.event)(port, event, event_data);
-}
-
-int enif_select(ErlNifEnv* env, ErlNifEvent event,
- enum ErlNifSelectFlags flags, void* obj, const ErlNifPid* pid, Eterm ref)
-{
- return (*io_func.enif_select)(env, event, flags, obj, pid, ref);
-}
-
-
-Eterm erts_check_io_info(void *p)
-{
- return (*io_func.info)(p);
-}
-
-int
-erts_check_io_debug(ErtsCheckIoDebugInfo *ip)
-{
- return (*io_func.check_io_debug)(ip);
-}
-
-
-static void
-init_check_io(void)
-{
- if (erts_use_kernel_poll) {
- io_func.select = driver_select_kp;
- io_func.enif_select = enif_select_kp;
- io_func.event = driver_event_kp;
- io_func.check_io_interrupt = erts_check_io_interrupt_kp;
- io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_kp;
- io_func.check_io = erts_check_io_kp;
- io_func.size = erts_check_io_size_kp;
- io_func.info = erts_check_io_info_kp;
- io_func.check_io_debug = erts_check_io_debug_kp;
- erts_init_check_io_kp();
- max_files = erts_check_io_max_files_kp();
- }
- else {
- io_func.select = driver_select_nkp;
- io_func.enif_select = enif_select_nkp;
- io_func.event = driver_event_nkp;
- io_func.check_io_interrupt = erts_check_io_interrupt_nkp;
- io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_nkp;
- io_func.check_io = erts_check_io_nkp;
- io_func.size = erts_check_io_size_nkp;
- io_func.info = erts_check_io_info_nkp;
- io_func.check_io_debug = erts_check_io_debug_nkp;
- erts_init_check_io_nkp();
- max_files = erts_check_io_max_files_nkp();
- }
-}
-
-#define ERTS_CHK_IO_AS_INTR() (*io_func.check_io_interrupt)(1)
-#define ERTS_CHK_IO_INTR (*io_func.check_io_interrupt)
-#define ERTS_CHK_IO_INTR_TMD (*io_func.check_io_interrupt_tmd)
-#define ERTS_CHK_IO (*io_func.check_io)
-#define ERTS_CHK_IO_SZ (*io_func.size)
-
-#else /* !ERTS_ENABLE_KERNEL_POLL */
-
-static void
-init_check_io(void)
-{
- erts_init_check_io();
- max_files = erts_check_io_max_files();
-}
-
-#define ERTS_CHK_IO_AS_INTR() erts_check_io_interrupt(1)
-#define ERTS_CHK_IO_INTR erts_check_io_interrupt
-#define ERTS_CHK_IO_INTR_TMD erts_check_io_interrupt_timed
-#define ERTS_CHK_IO erts_check_io
-#define ERTS_CHK_IO_SZ erts_check_io_size
-
-#endif
-
-void
-erts_sys_schedule_interrupt(int set)
-{
- ERTS_CHK_IO_INTR(set);
-}
-
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
- ERTS_CHK_IO_INTR_TMD(set, timeout_time);
-}
-
UWord
erts_sys_get_page_size(void)
{
@@ -261,7 +146,7 @@ erts_sys_get_page_size(void)
Uint
erts_sys_misc_mem_sz(void)
{
- Uint res = ERTS_CHK_IO_SZ();
+ Uint res = erts_check_io_size();
res += erts_atomic_read_mb(&sys_misc_mem_sz);
return res;
}
@@ -625,7 +510,7 @@ break_requested(void)
erts_exit(ERTS_INTR_EXIT, "");
ERTS_SET_BREAK_REQUESTED;
- ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
+ erts_check_io_sig_interrupt();
}
static RETSIGTYPE request_break(int signum)
@@ -813,7 +698,7 @@ erts_sys_unix_later_init(void)
int sys_max_files(void)
{
- return(max_files);
+ return max_files;
}
/************************** OS info *******************************/
@@ -1198,7 +1083,7 @@ erl_debug(char* fmt, ...)
void
erl_sys_schedule(int runnable)
{
- ERTS_CHK_IO(!runnable);
+ erts_check_io(!runnable);
ERTS_LC_ASSERT(!erts_thr_progress_is_blocking());
}
@@ -1417,6 +1302,8 @@ get_value(char* rest, char** argv, int* ip)
return rest;
}
+int erts_use_kernel_poll = 0;
+
#endif /* ERTS_ENABLE_KERNEL_POLL */
void
@@ -1475,7 +1362,9 @@ erl_sys_args(int* argc, char** argv)
}
#endif
- init_check_io();
+ erts_init_check_io();
+ max_files = erts_check_io_max_files();
+
init_smp_sig_notify();
init_smp_sig_suspend();
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index b23dbecbac..de391f078b 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -3248,18 +3248,6 @@ erl_sys_late_init(void)
/* do nothing */
}
-void
-erts_sys_schedule_interrupt(int set)
-{
- erts_check_io_interrupt(set);
-}
-
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
- erts_check_io_interrupt_timed(set, timeout_time);
-}
-
/*
* Called from schedule() when it runs out of runnable processes,
* or when Erlang code has performed INPUT_REDUCTIONS reduction
@@ -3271,4 +3259,3 @@ erl_sys_schedule(int runnable)
erts_check_io(!runnable);
ERTS_LC_ASSERT(!erts_thr_progress_is_blocking());
}
-