Add a regression test for pthread_mutex_islocked_np().

MFC after:	2 weeks

2 files changed, 85 insertions, 0 deletions

diff --git a/tools/regression/pthread/mutex_islocked_np/Makefile b/tools/regression/pthread/mutex_islocked_np/Makefile
new file mode 100644
index 0000000..90e381d
--- /dev/null
+++ b/tools/regression/pthread/mutex_islocked_np/Makefile
@@ -0,0 +1,8 @@
+# $FreeBSD$
+
+PROG=	mutex_islocked_np
+NO_MAN=
+
+LDADD=	-lpthread
+
+.include <bsd.prog.mk>
diff --git a/tools/regression/pthread/mutex_islocked_np/mutex_islocked_np.c b/tools/regression/pthread/mutex_islocked_np/mutex_islocked_np.c
new file mode 100644
index 0000000..3e467a1
--- /dev/null
+++ b/tools/regression/pthread/mutex_islocked_np/mutex_islocked_np.c
@@ -0,0 +1,77 @@
+/*-
+ * Copyright (c) 2008 Dag-Erling Coïdan Smørgrav
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <pthread.h>
+#include <pthread_np.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void *
+thread(void *arg)
+{
+	pthread_mutex_t *mtx = arg;
+
+	if (pthread_mutex_islocked_np(mtx) == 0) {
+		printf("pthread_mutex_islocked_np() returned zero\n"
+		    "for a mutex held by another thread\n");
+		exit(1);
+	}
+	return (NULL);
+}
+
+int
+main(int argc, char *argv[])
+{
+	pthread_t thr;
+	pthread_mutex_t mtx;
+
+	pthread_mutex_init(&mtx, NULL);
+	if (pthread_mutex_islocked_np(&mtx) != 0) {
+		printf("pthread_mutex_islocked_np() returned non-zero\n"
+		    "for a mutex that is not held\n");
+		exit(1);
+	}
+	pthread_mutex_lock(&mtx);
+	if (pthread_mutex_islocked_np(&mtx) == 0) {
+		printf("pthread_mutex_islocked_np() returned zero\n"
+		    "for a mutex we hold ourselves\n");
+		exit(1);
+	}
+	pthread_create(&thr, NULL, thread, &mtx);
+	pthread_join(thr, NULL);
+	pthread_mutex_unlock(&mtx);
+	if (pthread_mutex_islocked_np(&mtx) != 0) {
+		printf("pthread_mutex_islocked_np() returned non-zero\n"
+		    "for a mutex that is not held\n");
+		exit(1);
+	}
+
+	printf("OK\n");
+	exit(0);
+}