1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/gai_misc.h b/sysdeps/mach/hurd/gai_misc.h
new file mode 100644
index 0000000000..ee8117fa96
--- /dev/null
+++ b/sysdeps/mach/hurd/gai_misc.h
@@ -0,0 +1,44 @@
+#include <signal.h>
+#include <pthread.h>
+
+#define gai_start_notify_thread __gai_start_notify_thread
+#define gai_create_helper_thread __gai_create_helper_thread
+
+extern inline void
+__gai_start_notify_thread (void)
+{
+  sigset_t ss;
+  sigemptyset (&ss);
+  sigprocmask(SIG_SETMASK, &ss, NULL);
+}
+
+extern inline int
+__gai_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
+			    void *arg)
+{
+  pthread_attr_t attr;
+
+  /* Make sure the thread is created detached.  */
+  pthread_attr_init (&attr);
+  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+
+  /* The helper thread needs only very little resources.  */
+  (void) pthread_attr_setstacksize (&attr, 0x10000);
+
+  /* Block all signals in the helper thread.  To do this thoroughly we
+     temporarily have to block all signals here.  */
+  sigset_t ss;
+  sigset_t oss;
+  sigfillset (&ss);
+  sigprocmask(SIG_SETMASK, &ss, &oss);
+
+  int ret = pthread_create (threadp, &attr, tf, arg);
+
+  /* Restore the signal mask.  */
+  sigprocmask(SIG_SETMASK, &oss, NULL);
+
+  (void) pthread_attr_destroy (&attr);
+  return ret;
+}
+
+#include_next <gai_misc.h>