1 files changed, 67 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_shutdown.h b/sys/dev/raidframe/rf_shutdown.h
new file mode 100644
index 0000000..5abc5ba
--- /dev/null
+++ b/sys/dev/raidframe/rf_shutdown.h
@@ -0,0 +1,67 @@
+/*	$FreeBSD$ */
+/*	$NetBSD: rf_shutdown.h,v 1.2 1999/02/05 00:06:17 oster Exp $	*/
+/*
+ * rf_shutdown.h
+ */
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Jim Zelenka
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+/*
+ * Maintain lists of cleanup functions. Also, mechanisms for coordinating
+ * thread startup and shutdown.
+ */
+
+#ifndef _RF__RF_SHUTDOWN_H_
+#define _RF__RF_SHUTDOWN_H_
+
+#include <dev/raidframe/rf_types.h>
+#include <dev/raidframe/rf_threadstuff.h>
+
+/*
+ * Important note: the shutdown list is run like a stack, new
+ * entries pushed on top. Therefore, the most recently added
+ * entry (last started) is the first removed (stopped). This
+ * should handle system-dependencies pretty nicely- if a system
+ * is there when you start another, it'll be there when you
+ * shut down another. Hopefully, this subsystem will remove
+ * more complexity than it introduces.
+ */
+
+struct RF_ShutdownList_s {
+	void    (*cleanup) (void *arg);
+	void   *arg;
+	char   *file;
+	int     line;
+	RF_ShutdownList_t *next;
+};
+#define rf_ShutdownCreate(_listp_,_func_,_arg_) \
+  _rf_ShutdownCreate(_listp_,_func_,_arg_,__FILE__,__LINE__)
+
+int     _rf_ShutdownCreate(RF_ShutdownList_t ** listp, void (*cleanup) (void *arg),
+            void *arg, char *file, int line);
+int     rf_ShutdownList(RF_ShutdownList_t ** listp);
+
+#endif				/* !_RF__RF_SHUTDOWN_H_ */