1 files changed, 51 insertions, 0 deletions
diff --git a/libports/destroy-right.c b/libports/destroy-right.c
new file mode 100644
index 00000000..32085c80
--- /dev/null
+++ b/libports/destroy-right.c
@@ -0,0 +1,51 @@
+/*
+   Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell.
+
+   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 General Public License as
+   published by the Free Software Foundation; either version 2, 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "ports.h"
+#include <cthreads.h>
+#include <hurd/ihash.h>
+#include <assert.h>
+
+error_t
+ports_destroy_right (void *portstruct)
+{
+  struct port_info *pi = portstruct;
+  error_t err;
+
+  if (pi->port_right != MACH_PORT_NULL)
+    {
+      mutex_lock (&_ports_lock);
+      ihash_locp_remove (pi->bucket->htable, pi->hentry);
+      err = mach_port_mod_refs (mach_task_self (), pi->port_right,
+				MACH_PORT_RIGHT_RECEIVE, -1);
+      assert_perror (err);
+      mutex_unlock (&_ports_lock);
+
+      pi->port_right = MACH_PORT_NULL;
+
+      if (pi->flags & PORT_HAS_SENDRIGHTS)
+	{
+	  pi->flags &= ~PORT_HAS_SENDRIGHTS;
+	  ports_port_deref (pi);
+	}
+    }
+
+  return 0;
+}