Remove unused signals implementation

* signal/README: Remove file.
* signal/TODO: Likewise.
* signal/kill.c: Likewise.
* signal/pt-kill-siginfo-np.c: Likewise.
* signal/sig-internal.c: Likewise.
* signal/sig-internal.h: Likewise.
* signal/sigaction.c: Likewise.
* signal/sigaltstack.c: Likewise.
* signal/signal-dispatch.c: Likewise.
* signal/signal.h: Likewise.
* signal/sigpending.c: Likewise.
* signal/sigsuspend.c: Likewise.
* signal/sigtimedwait.c: Likewise.
* signal/sigwaiter.c: Likewise.
* signal/sigwaitinfo.c: Likewise.

1 files changed, 0 insertions, 91 deletions

diff --git a/signal/sigwaiter.c b/signal/sigwaiter.c
deleted file mode 100644
index 8d041ac..0000000
--- a/signal/sigwaiter.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/* sigwaiter.c - Signal handling functions.
-   Copyright (C) 2008 Free Software Foundation, Inc.
-   Written by Neal H. Walfield <neal@gnu.org>.
-
-   This file is part of the GNU Hurd.
-
-   The GNU Hurd is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public License
-   as published by the Free Software Foundation; either version 3 of
-   the License, or (at your option) any later version.
-
-   The GNU Hurd is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this program.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include "sig-internal.h"
-
-#include <hurd/futex.h>
-
-struct sigwaiter *sigwaiters;
-
-siginfo_t
-sigwaiter_block (struct signal_state *ss, const sigset_t *restrict set)
-{
-  assert (pthread_mutex_trylock (&sig_lock) == EBUSY);
-  assert (pthread_mutex_trylock (&ss->lock) == EBUSY);
-
-  assert (! ss->sigwaiter);
-
-  struct sigwaiter waiter;
-
-  waiter.next = sigwaiters;
-  if (waiter.next)
-    {
-      assert (! waiter.next->prev);
-      waiter.next->prev = &waiter;
-    }
-  waiter.prev = 0;
-  sigwaiters = &waiter;
-
-  waiter.ss = ss;
-  waiter.info.si_signo = 0;
-  waiter.signals = *set;
-
-  ss->sigwaiter = &waiter;
-
-  pthread_mutex_unlock (&ss->lock);
-  pthread_mutex_unlock (&sig_lock);
-
-  futex_wait (&waiter.info.si_signo, 0);
-
-#ifndef NDEBUG
-  pthread_mutex_lock (&ss->lock);
-  ss->sigwaiter = 0;
-  pthread_mutex_unlock (&ss->lock);
-#endif
-
-  assert (waiter.info.si_signo);
-  return waiter.info;
-}
-
-void
-sigwaiter_unblock (struct sigwaiter *waiter)
-{
-  assert (pthread_mutex_trylock (&sig_lock) == EBUSY);
-  assert (pthread_mutex_trylock (&waiter->ss->lock) == EBUSY);
-
-  struct sigwaiter *prev = waiter->prev;
-  struct sigwaiter *next = waiter->next;
-
-  if (next)
-    next->prev = prev;
-
-  if (prev)
-    prev->next = next;
-  else
-    sigwaiters = next;
-
-  sigdelset (&process_pending, waiter->info.si_signo);
-  sigdelset (&waiter->ss->pending, waiter->info.si_signo);
-
-  pthread_mutex_unlock (&waiter->ss->lock);
-  pthread_mutex_unlock (&sig_lock);
-
-  futex_wake (&waiter->info.si_signo, 1);
-}