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-rw-r--r--thread_pthread.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/thread_pthread.c b/thread_pthread.c
index 89b05e59da..bfff385292 100644
--- a/thread_pthread.c
+++ b/thread_pthread.c
@@ -1252,14 +1252,18 @@ rb_thread_create_timer_thread(void)
}
rb_update_max_fd(timer_thread_pipe[0]);
rb_update_max_fd(timer_thread_pipe[1]);
-#if defined(HAVE_FCNTL) && defined(F_GETFL) && defined(F_SETFL)
+#if defined(HAVE_FCNTL) && defined(F_GETFL) && defined(F_SETFL) && defined(O_NONBLOCK)
{
int oflags;
-#if defined(O_NONBLOCK)
+ int err;
+
oflags = fcntl(timer_thread_pipe[1], F_GETFL);
+ if (oflags == -1)
+ rb_sys_fail(0);
oflags |= O_NONBLOCK;
- fcntl(timer_thread_pipe[1], F_SETFL, oflags);
-#endif /* defined(O_NONBLOCK) */
+ err = fcntl(timer_thread_pipe[1], F_SETFL, oflags);
+ if (err == -1)
+ rb_sys_fail(0);
}
#endif /* defined(HAVE_FCNTL) && defined(F_GETFL) && defined(F_SETFL) */