diff options
Diffstat (limited to 'libports/inhibit-class-rpcs.c')
-rw-r--r-- | libports/inhibit-class-rpcs.c | 48 |
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); +} + + |