1 files changed, 103 insertions, 0 deletions
diff --git a/db2/lock/lock_util.c b/db2/lock/lock_util.c
new file mode 100644
index 0000000000..4063849f28
--- /dev/null
+++ b/db2/lock/lock_util.c
@@ -0,0 +1,103 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)lock_util.c	10.4 (Sleepycat) 7/22/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "shqueue.h"
+#include "db_page.h"
+#include "db_shash.h"
+#include "hash.h"
+#include "lock.h"
+
+/*
+ * This function is used to compare a DBT that is about to be entered
+ * into a hash table with an object already in the hash table.  Note
+ * that it just returns true on equal and 0 on not-equal.  Therefore this
+ * cannot be used as a sort function; its purpose is to be used as a
+ * hash comparison function.
+ * PUBLIC: int __lock_cmp __P((DBT *, DB_LOCKOBJ *));
+ */
+int
+__lock_cmp(dbt, lock_obj)
+	DBT *dbt;
+	DB_LOCKOBJ *lock_obj;
+{
+	void *obj_data;
+
+	if (lock_obj->type != DB_LOCK_OBJTYPE)
+		return (0);
+	obj_data = SH_DBT_PTR(&lock_obj->lockobj);
+	return (dbt->size == lock_obj->lockobj.size &&
+		memcmp(dbt->data, obj_data, dbt->size) == 0);
+}
+
+/*
+ * PUBLIC: int __lock_locker_cmp __P((u_int32_t, DB_LOCKOBJ *));
+ */
+int
+__lock_locker_cmp(locker, lock_obj)
+	u_int32_t locker;
+	DB_LOCKOBJ *lock_obj;
+{
+	void *obj_data;
+
+	if (lock_obj->type != DB_LOCK_LOCKER)
+		return (0);
+
+	obj_data = SH_DBT_PTR(&lock_obj->lockobj);
+	return (memcmp(&locker, obj_data, sizeof(u_int32_t)) == 0);
+}
+
+/*
+ * PUBLIC: int __lock_ohash __P((DBT *));
+ */
+int
+__lock_ohash(dbt)
+	DBT *dbt;
+{
+	return (__ham_func5(dbt->data, dbt->size));
+}
+
+/*
+ * PUBLIC: u_int32_t __lock_locker_hash __P((u_int32_t));
+ */
+u_int32_t
+__lock_locker_hash(locker)
+	u_int32_t locker;
+{
+	return (__ham_func5(&locker, sizeof(locker)));
+}
+
+/*
+ * PUBLIC: u_int32_t __lock_lhash __P((DB_LOCKOBJ *));
+ */
+u_int32_t
+__lock_lhash(lock_obj)
+	DB_LOCKOBJ *lock_obj;
+{
+	void *obj_data;
+
+	obj_data = SH_DBT_PTR(&lock_obj->lockobj);
+	return (__ham_func5(obj_data, lock_obj->lockobj.size));
+}
+