process.c: simplify SIGCHLD-based waitpid

Introduce a new rb_thread_sleep_interruptible that does not
execute interrupts before sleeping.  Skipping the interrupt
check before sleep is required for out-of-GVL ruby_waitpid_all
to function properly when setting waitpid_state.ret

Now that ubf_select can be called by the gvl.timer thread
without recursive locking gvl.lock, we can safely use
rb_threadptr_interrupt to deal with waking up sleeping
processes,

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 20 deletions

diff --git a/thread_pthread.c b/thread_pthread.c
index ef3cecb0e2..fa79b03c55 100644
--- a/thread_pthread.c
+++ b/thread_pthread.c
@@ -1873,26 +1873,6 @@ rb_thread_create_mjit_thread(void (*worker_func)(void))
     return ret;
 }
 
-#ifndef USE_NATIVE_SLEEP_COND
-#define USE_NATIVE_SLEEP_COND (1)
-#endif
-
-#if USE_NATIVE_SLEEP_COND
-rb_nativethread_cond_t *
-rb_sleep_cond_get(const rb_execution_context_t *ec)
-{
-    rb_thread_t *th = rb_ec_thread_ptr(ec);
-
-    return &th->native_thread_data.cond.intr;
-}
-
-void
-rb_sleep_cond_put(rb_nativethread_cond_t *cond)
-{
-    /* no-op */
-}
-#endif /* USE_NATIVE_SLEEP_COND */
-
 int
 rb_sigwait_fd_get(const rb_thread_t *th)
 {