X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e2fac8b15b12a7979f72090454d850e612fc5b13..b0d623f7f2ae71ed96e60569f61f9a9a27016e80:/tools/tests/libMicro/file_lock.c

diff --git a/tools/tests/libMicro/file_lock.c b/tools/tests/libMicro/file_lock.c
new file mode 100644
index 000000000..fc1196420
--- /dev/null
+++ b/tools/tests/libMicro/file_lock.c
@@ -0,0 +1,106 @@
+/*
+ * 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.
+ */
+
+/*
+ * test file locking
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include "libmicro.h"
+
+static int 			file;
+
+int
+block(int index)
+{
+	struct flock		fl;
+
+	fl.l_type = F_WRLCK;
+	fl.l_whence = SEEK_SET;
+	fl.l_start = index;
+	fl.l_len = 1;
+	return (fcntl(file, F_SETLKW, &fl) == -1);
+}
+
+int
+unblock(int index)
+{
+	struct flock		fl;
+
+	fl.l_type = F_UNLCK;
+	fl.l_whence = SEEK_SET;
+	fl.l_start = index;
+	fl.l_len = 1;
+	return (fcntl(file, F_SETLK, &fl) == -1);
+}
+int
+benchmark_init()
+{
+	char			fname[80];
+	int	errors = 0;
+
+	(void) sprintf(fname, "/private/tmp/oneflock.%ld", getpid());
+
+	file = open(fname, O_CREAT | O_TRUNC | O_RDWR, 0600);
+
+	if (file == -1) {
+		errors++;
+	}
+	if (unlink(fname)) {
+		errors++;
+	}
+
+	lm_tsdsize = 0;
+
+	return (errors);
+}
+
+/*ARGSUSED*/
+int
+benchmark(void *tsd, result_t *res)
+{
+	int			i;
+	int			e = 0;
+
+	for (i = 0; i < lm_optB; i ++) {
+		e += block(0);
+		e += unblock(0);
+	}
+	res->re_count = i;
+	res->re_errors = e;
+
+	return (0);
+}