Initial revision

1 files changed, 48 insertions, 0 deletions

diff --git a/libports/inhibit-class-rpcs.c b/libports/inhibit-class-rpcs.c
new file mode 100644
index 00000000..5bc94541
--- /dev/null
+++ b/libports/inhibit-class-rpcs.c
@@ -0,0 +1,48 @@
+/* 
+   Copyright (C) 1995 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>
+
+void
+ports_inhibit_class_rpcs (struct port_class *class)
+{
+  struct port_info *pi;
+  struct rpc_info *rpc;
+  
+  mutex_lock (&_ports_lock);
+  
+  for (pi = class->ports; pi; pi = pi->next)
+    for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
+      thread_cancel (rpc->thread);
+
+  while (class->rpcs)
+    {
+      class->flags |= PORT_CLASS_INHIBIT_WAIT;
+      condition_wait (&_ports_block, &_ports_lock);
+    }
+  
+  class->flags |= PORT_CLASS_INHIBITED;
+  class->flags &= ~PORT_CLASS_INHIBIT_WAIT;
+
+  mutex_unlock (&_ports_lock);
+}
+
+