Sync to HEAD@r272516.

1 files changed, 175 insertions, 0 deletions

diff --git a/contrib/netbsd-tests/lib/librt/t_sem.c b/contrib/netbsd-tests/lib/librt/t_sem.c
new file mode 100644
index 0000000..b6fc4db
--- /dev/null
+++ b/contrib/netbsd-tests/lib/librt/t_sem.c
@@ -0,0 +1,175 @@
+/* $NetBSD: t_sem.c,v 1.2 2010/11/08 13:05:49 njoly Exp $ */
+
+/*
+ * Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
+ * 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.
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Copyright (C) 2000 Jason Evans <jasone@freebsd.org>.
+ * 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(s), this list of conditions and the following disclaimer as
+ *    the first lines of this file unmodified other than the possible
+ *    addition of one or more copyright notices.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+ */
+
+#include <sys/cdefs.h>
+__COPYRIGHT("@(#) Copyright (c) 2008, 2010\
+ The NetBSD Foundation, inc. All rights reserved.");
+__RCSID("$NetBSD: t_sem.c,v 1.2 2010/11/08 13:05:49 njoly Exp $");
+
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <atf-c.h>
+
+#define NCHILDREN 10
+
+ATF_TC(basic);
+ATF_TC_HEAD(basic, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks basic functionality of POSIX "
+	    "semaphores");
+}
+ATF_TC_BODY(basic, tc)
+{
+	int val;
+	sem_t *sem_b;
+
+	if (sysconf(_SC_SEMAPHORES) == -1)
+		atf_tc_skip("POSIX semaphores not supported");
+
+	sem_b = sem_open("/sem_b", O_CREAT | O_EXCL, 0644, 0);
+	ATF_REQUIRE(sem_b != SEM_FAILED);
+
+	ATF_REQUIRE_EQ(sem_getvalue(sem_b, &val), 0);
+	ATF_REQUIRE_EQ(val, 0);
+
+	ATF_REQUIRE_EQ(sem_post(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_getvalue(sem_b, &val), 0);
+	ATF_REQUIRE_EQ(val, 1);
+
+	ATF_REQUIRE_EQ(sem_wait(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_trywait(sem_b), -1);
+	ATF_REQUIRE_EQ(errno, EAGAIN);
+	ATF_REQUIRE_EQ(sem_post(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_trywait(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_post(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_wait(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_post(sem_b), 0);
+
+	ATF_REQUIRE_EQ(sem_close(sem_b), 0);
+	ATF_REQUIRE_EQ(sem_unlink("/sem_b"), 0);
+}
+
+ATF_TC(child);
+ATF_TC_HEAD(child, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Checks using semaphores to synchronize "
+	    "parent with multiple child processes");
+}
+ATF_TC_BODY(child, tc)
+{
+	pid_t children[NCHILDREN];
+	unsigned i, j;
+	sem_t *sem_a;
+	int status;
+
+	pid_t pid;
+
+	if (sysconf(_SC_SEMAPHORES) == -1)         
+		atf_tc_skip("POSIX semaphores not supported");
+
+	sem_a = sem_open("/sem_a", O_CREAT | O_EXCL, 0644, 0);
+	ATF_REQUIRE(sem_a != SEM_FAILED);
+
+	for (j = 1; j <= 2; j++) {
+		for (i = 0; i < NCHILDREN; i++) {
+			switch ((pid = fork())) {
+			case -1:
+				atf_tc_fail("fork() returned -1");
+			case 0:
+				printf("PID %d waiting for semaphore...\n",
+				    getpid());
+				ATF_REQUIRE_MSG(sem_wait(sem_a) == 0,
+				    "sem_wait failed; iteration %d", j);
+				printf("PID %d got semaphore\n", getpid());
+				_exit(0);
+			default:
+				children[i] = pid;
+				break;
+			}
+		}
+
+		for (i = 0; i < NCHILDREN; i++) {
+			sleep(1);
+			printf("main loop %d: posting...\n", j);
+			ATF_REQUIRE_EQ(sem_post(sem_a), 0);
+		}
+
+		for (i = 0; i < NCHILDREN; i++) {
+			ATF_REQUIRE_EQ(waitpid(children[i], &status, 0), children[i]);
+			ATF_REQUIRE(WIFEXITED(status));
+			ATF_REQUIRE_EQ(WEXITSTATUS(status), 0);
+		}
+	}
+
+	ATF_REQUIRE_EQ(sem_close(sem_a), 0);
+	ATF_REQUIRE_EQ(sem_unlink("/sem_a"), 0);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, basic);
+	ATF_TP_ADD_TC(tp, child);
+
+	return atf_no_error();
+}