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-rw-r--r--libports/interrupt-operation.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/libports/interrupt-operation.c b/libports/interrupt-operation.c
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+++ b/libports/interrupt-operation.c
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+/* interrupt_operation
+
+ Copyright (C) 1995 Free Software Foundation, Inc.
+
+ Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+ This program 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.
+
+ This program 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"
+
+/* Cause a pending request on this object to immediately return. The
+ exact semantics are dependent on the specific object. */
+error_t
+ports_S_interrupt_operation (mach_port_t port)
+{
+ struct port_info *pi = ports_lookup_port (0, port, 0);
+ if (!pi)
+ return EOPNOTSUPP;
+ ports_interrupt_rpc (pi);
+ ports_port_deref (pi);
+ return 0;
+}