1 files changed, 194 insertions, 0 deletions
diff --git a/native/libMicro-0.4.0/mutex.c b/native/libMicro-0.4.0/mutex.c
new file mode 100644
index 0000000..3c056af
--- /dev/null
+++ b/native/libMicro-0.4.0/mutex.c
@@ -0,0 +1,194 @@
+/*
+ * 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.
+ */
+
+/*
+ * mutex
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <sys/mman.h>
+
+#include "libmicro.h"
+
+static int			optt = 0;
+static int			optp = 0;
+static int			opth = 0;
+static int			opto = 0;
+
+pthread_mutex_t			*lock;
+
+typedef struct {
+	int			ts_once;
+	pthread_mutex_t		*ts_lock;
+} tsd_t;
+
+int
+benchmark_init()
+{
+	lm_tsdsize = sizeof (tsd_t);
+
+	(void) sprintf(lm_usage,
+	    "       [-t] (create dummy thread so we are multithreaded)\n"
+	    "       [-p] (use inter-process mutex (not support everywhere))\n"
+	    "       [-h usecs] (specify mutex hold time (default 0)\n"
+	    "notes: measures uncontended pthread_mutex_[un,]lock\n");
+
+	(void) sprintf(lm_optstr, "tph:o:");
+
+	(void) sprintf(lm_header, "%8s", "holdtime");
+
+	return (0);
+}
+
+/*ARGSUSED*/
+int
+benchmark_optswitch(int opt, char *optarg)
+{
+	switch (opt) {
+	case 'p':
+		optp = 1;
+		break;
+
+	case 't':
+		optt = 1;
+		break;
+
+	case 'h':
+		opth = sizetoint(optarg);
+		break;
+
+	case 'o':
+		opto = sizetoint(optarg);
+		break;
+
+	default:
+		return (-1);
+	}
+	return (0);
+}
+
+void *
+dummy(void *arg)
+{
+	(void) pause();
+	return (arg);
+}
+
+int
+benchmark_initrun()
+{
+	pthread_mutexattr_t	attr;
+	int errors = 0;
+
+	/*LINTED*/
+	lock = (pthread_mutex_t *)mmap(NULL,
+	    getpagesize(),
+	    PROT_READ | PROT_WRITE,
+	    optp?(MAP_ANON | MAP_SHARED):MAP_ANON|MAP_PRIVATE,
+	    -1, 0L) + opto;
+
+	if (lock == MAP_FAILED) {
+		errors++;
+	} else {
+		(void) pthread_mutexattr_init(&attr);
+		if (optp)
+			(void) pthread_mutexattr_setpshared(&attr,
+			    PTHREAD_PROCESS_SHARED);
+
+		if (pthread_mutex_init(lock, &attr) != 0)
+			errors++;
+	}
+
+	return (errors);
+}
+
+int
+benchmark_initworker(void *tsd)
+{
+	int errors = 0;
+	tsd_t			*ts = (tsd_t *)tsd;
+
+
+	if (optt) {
+		pthread_t		tid;
+
+
+
+		if (pthread_create(&tid, NULL, dummy, NULL) != 0) {
+			errors++;
+		}
+	}
+
+	ts->ts_lock = lock;
+
+	return (errors);
+}
+
+void
+spinme(int usecs)
+{
+	long long s = getusecs();
+
+	while (getusecs() - s < usecs)
+		;
+}
+
+int
+benchmark(void *tsd, result_t *res)
+{
+	tsd_t			*ts = (tsd_t *)tsd;
+	int			i;
+
+	for (i = 0; i < lm_optB; i ++) {
+
+		(void) pthread_mutex_lock(ts->ts_lock);
+		if (opth)
+			spinme(opth);
+		(void) pthread_mutex_unlock(ts->ts_lock);
+
+	}
+
+	res->re_count = lm_optB;
+
+	return (0);
+}
+
+char *
+benchmark_result()
+{
+	static char		result[256];
+
+	(void) sprintf(result, "%8d", opth);
+
+	return (result);
+}