Fix ethread events with timeout

Lots of pthread platforms unnecessarily falled back on the pipe/select
solution. This since we tried to use the same monotonic clock source
for pthread_cond_timedwait() as used by OS monotonic time. This has
been fixed on most platforms by using another clock source.

Darwin can however not use pthread_cond_timedwait() with monotonic
clock source and has to use the pipe/select solution. On darwin we
now use select with _DARWIN_UNLIMITED_SELECT in order to be able to
handle a large amount of file descriptors.

1 files changed, 6 insertions, 1 deletions

diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index ee1dd36d48..58698173be 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -7938,11 +7938,16 @@ sched_thread_func(void *vesdp)
     ErtsThrPrgrCallbacks callbacks;
     ErtsSchedulerData *esdp = vesdp;
     Uint no = esdp->no;
+#ifdef ERTS_SMP
+    erts_tse_t *tse;
+#endif
 
     erts_sched_init_time_sup(esdp);
 
 #ifdef ERTS_SMP
-    ERTS_SCHED_SLEEP_INFO_IX(no - 1)->event = erts_tse_fetch();
+    tse = erts_tse_fetch();
+    erts_tse_prepare_timed(tse);
+    ERTS_SCHED_SLEEP_INFO_IX(no - 1)->event = tse;
     callbacks.arg = (void *) esdp->ssi;
     callbacks.wakeup = thr_prgr_wakeup;
     callbacks.prepare_wait = thr_prgr_prep_wait;