1 files changed, 94 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_callback.c b/sys/dev/raidframe/rf_callback.c
new file mode 100644
index 0000000..4b79d8b
--- /dev/null
+++ b/sys/dev/raidframe/rf_callback.c
@@ -0,0 +1,94 @@
+/*	$FreeBSD$ */
+/*	$NetBSD: rf_callback.c,v 1.3 1999/02/05 00:06:06 oster Exp $	*/
+/*
+ * Copyright (c) 1995 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.
+ */
+
+/*****************************************************************************************
+ *
+ * callback.c -- code to manipulate callback descriptor
+ *
+ ****************************************************************************************/
+
+
+#include <dev/raidframe/rf_types.h>
+#include <dev/raidframe/rf_threadstuff.h>
+#include <dev/raidframe/rf_callback.h>
+#include <dev/raidframe/rf_debugMem.h>
+#include <dev/raidframe/rf_freelist.h>
+#include <dev/raidframe/rf_shutdown.h>
+
+static RF_FreeList_t *rf_callback_freelist;
+
+#define RF_MAX_FREE_CALLBACK 64
+#define RF_CALLBACK_INC       4
+#define RF_CALLBACK_INITIAL   4
+
+static void rf_ShutdownCallback(void *);
+static void 
+rf_ShutdownCallback(ignored)
+	void   *ignored;
+{
+	RF_FREELIST_DESTROY(rf_callback_freelist, next, (RF_CallbackDesc_t *));
+}
+
+int 
+rf_ConfigureCallback(listp)
+	RF_ShutdownList_t **listp;
+{
+	int     rc;
+
+	RF_FREELIST_CREATE(rf_callback_freelist, RF_MAX_FREE_CALLBACK,
+	    RF_CALLBACK_INC, sizeof(RF_CallbackDesc_t));
+	if (rf_callback_freelist == NULL)
+		return (ENOMEM);
+	rc = rf_ShutdownCreate(listp, rf_ShutdownCallback, NULL);
+	if (rc) {
+		RF_ERRORMSG3("Unable to add to shutdown list file %s line %d rc=%d\n", __FILE__,
+		    __LINE__, rc);
+		rf_ShutdownCallback(NULL);
+		return (rc);
+	}
+	RF_FREELIST_PRIME(rf_callback_freelist, RF_CALLBACK_INITIAL, next,
+	    (RF_CallbackDesc_t *));
+	return (0);
+}
+
+RF_CallbackDesc_t *
+rf_AllocCallbackDesc()
+{
+	RF_CallbackDesc_t *p;
+
+	RF_FREELIST_GET(rf_callback_freelist, p, next, (RF_CallbackDesc_t *));
+	return (p);
+}
+
+void 
+rf_FreeCallbackDesc(p)
+	RF_CallbackDesc_t *p;
+{
+	RF_FREELIST_FREE(rf_callback_freelist, p, next);
+}