xnu-1456.1.26.tar.gz

[apple/xnu.git] / tools / tests / libMicro / recurse.c

diff --git a/tools/tests/libMicro/recurse.c b/tools/tests/libMicro/recurse.c
new file mode 100644 (file)
index 0000000..3237b46
--- /dev/null
+++ b/tools/tests/libMicro/recurse.c
@@ -0,0 +1,98 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms
+ * of the Common Development and Distribution License
+ * (the "License").  You may not use this file except
+ * in compliance with the License.
+ *
+ * You can obtain a copy of the license at
+ * src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing
+ * permissions and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL
+ * HEADER in each file and include the License file at
+ * usr/src/OPENSOLARIS.LICENSE.  If applicable,
+ * add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your
+ * own identifying information: Portions Copyright [yyyy]
+ * [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "libmicro.h"
+
+#define        DEFD            100
+
+static int                     optd = DEFD;
+
+int recurse2(int x, int y, char *s);
+
+/*ARGSUSED*/
+int
+recurse1(int x, int y, char *s)
+{
+       char                    str[32];
+
+       if (x < y) {
+               return (recurse2(x + 1, y, str));
+       }
+
+       return (x);
+}
+
+int
+benchmark_init()
+{
+       lm_tsdsize = 0;
+
+       (void) sprintf(lm_optstr, "d:");
+
+       (void) sprintf(lm_usage,
+           "       [-d depth-limit (default = %d)]\n"
+           "notes: measures recursion performance\n",
+           DEFD);
+
+       return (0);
+}
+
+int
+benchmark_optswitch(int opt, char *optarg)
+{
+       switch (opt) {
+       case 'd':
+               optd = atoi(optarg);
+               break;
+       default:
+               return (-1);
+       }
+       return (0);
+}
+
+/*ARGSUSED*/
+int
+benchmark(void *tsd, result_t *res)
+{
+       int                     i;
+
+       for (i = 0; i < lm_optB; i++) {
+               (void) recurse1(0, optd, NULL);
+       }
+       res->re_count = i;
+
+       return (0);
+}