Import of CMU's RAIDframe via NetBSD.

1 files changed, 114 insertions, 0 deletions

diff --git a/sys/dev/raidframe/rf_shutdown.c b/sys/dev/raidframe/rf_shutdown.c
new file mode 100644
index 00000000000..3e0dfc96a37
--- /dev/null
+++ b/sys/dev/raidframe/rf_shutdown.c
@@ -0,0 +1,114 @@
+/*	$OpenBSD: rf_shutdown.c,v 1.1 1999/01/11 14:29:49 niklas Exp $	*/
+/*	$NetBSD: rf_shutdown.c,v 1.1 1998/11/13 04:20:34 oster Exp $	*/
+/*
+ * rf_shutdown.c
+ */
+/*
+ * 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.
+ */
+
+#include "rf_types.h"
+#include "rf_threadstuff.h"
+#include "rf_shutdown.h"
+#include "rf_debugMem.h"
+#include "rf_freelist.h"
+#include "rf_threadid.h"
+
+static void rf_FreeShutdownEnt(RF_ShutdownList_t *ent)
+{
+#ifdef KERNEL
+  FREE(ent, M_DEVBUF);
+#else /* KERNEL */
+  free(ent);
+#endif /* KERNEL */
+}
+
+int _rf_ShutdownCreate(
+  RF_ShutdownList_t  **listp,
+  void               (*cleanup)(void *arg),
+  void                *arg,
+  char                *file,
+  int                  line)
+{
+  RF_ShutdownList_t *ent;
+
+  /*
+   * Have to directly allocate memory here, since we start up before
+   * and shutdown after RAIDframe internal allocation system.
+   */
+#ifdef KERNEL
+  ent = (RF_ShutdownList_t *)malloc( sizeof(RF_ShutdownList_t), M_DEVBUF, M_WAITOK);
+#if 0
+  MALLOC(ent, RF_ShutdownList_t *, sizeof(RF_ShutdownList_t), M_DEVBUF, M_WAITOK);
+#endif
+#else /* KERNEL */
+  ent = (RF_ShutdownList_t *)malloc(sizeof(RF_ShutdownList_t));
+#endif /* KERNEL */
+  if (ent == NULL)
+    return(ENOMEM);
+  ent->cleanup = cleanup;
+  ent->arg = arg;
+  ent->file = file;
+  ent->line = line;
+  ent->next = *listp;
+  *listp = ent;
+  return(0);
+}
+
+int rf_ShutdownList(RF_ShutdownList_t **list)
+{
+  RF_ShutdownList_t *r, *next;
+  char *file;
+  int line;
+
+  for(r=*list;r;r=next) {
+    next = r->next;
+    file = r->file;
+    line = r->line;
+
+    if (rf_shutdownDebug) {
+      int tid;
+      rf_get_threadid(tid);
+      printf("[%d] call shutdown, created %s:%d\n", tid, file, line);
+    }
+
+    r->cleanup(r->arg);
+
+    if (rf_shutdownDebug) {
+      int tid;
+      rf_get_threadid(tid);
+      printf("[%d] completed shutdown, created %s:%d\n", tid, file, line);
+    }
+
+    rf_FreeShutdownEnt(r);
+  }
+  *list = NULL;
+  return(0);
+}