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[src/trunk]: src Add few naive test cases for msync(2).
details: https://anonhg.NetBSD.org/src/rev/d022959c2679
branches: trunk
changeset: 763933:d022959c2679
user: jruoho <jruoho%NetBSD.org@localhost>
date: Thu Apr 07 17:38:02 2011 +0000
description:
Add few naive test cases for msync(2).
diffstat:
distrib/sets/lists/tests/mi | 4 +-
tests/syscall/Makefile | 8 +-
tests/syscall/t_msync.c | 225 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 233 insertions(+), 4 deletions(-)
diffs (274 lines):
diff -r 2572595c2c28 -r d022959c2679 distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi Thu Apr 07 17:33:11 2011 +0000
+++ b/distrib/sets/lists/tests/mi Thu Apr 07 17:38:02 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.298 2011/04/07 06:24:07 plunky Exp $
+# $NetBSD: mi,v 1.299 2011/04/07 17:38:02 jruoho Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -583,6 +583,7 @@
./usr/libdata/debug/usr/tests/syscall/t_getsid.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_mmap.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_mprotect.debug tests-syscall-debug debug,atf
+./usr/libdata/debug/usr/tests/syscall/t_msync.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_setrlimit.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_setuid.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_timer.debug tests-syscall-debug debug,atf
@@ -2140,6 +2141,7 @@
./usr/tests/syscall/t_getsid tests-syscall-tests atf
./usr/tests/syscall/t_mmap tests-syscall-tests atf
./usr/tests/syscall/t_mprotect tests-syscall-tests atf
+./usr/tests/syscall/t_msync tests-syscall-tests atf
./usr/tests/syscall/t_setrlimit tests-syscall-tests atf
./usr/tests/syscall/t_setuid tests-syscall-tests atf
./usr/tests/syscall/t_timer tests-syscall-tests atf
diff -r 2572595c2c28 -r d022959c2679 tests/syscall/Makefile
--- a/tests/syscall/Makefile Thu Apr 07 17:33:11 2011 +0000
+++ b/tests/syscall/Makefile Thu Apr 07 17:38:02 2011 +0000
@@ -1,11 +1,13 @@
-# $NetBSD: Makefile,v 1.20 2011/04/06 05:53:17 jruoho Exp $
+# $NetBSD: Makefile,v 1.21 2011/04/07 17:38:02 jruoho Exp $
.include <bsd.own.mk>
TESTSDIR= ${TESTSBASE}/syscall
-TESTS_C+= t_access t_cmsg t_dup t_fsync t_getpid t_getrusage t_getsid
-TESTS_C+= t_mmap t_mprotect t_setrlimit t_setuid t_timer t_umask
+TESTS_C+= t_access t_cmsg t_dup t_fsync
+TESTS_C+= t_getpid t_getrusage t_getsid
+TESTS_C+= t_mmap t_mprotect t_msync
+TESTS_C+= t_setrlimit t_setuid t_timer t_umask
LDADD.t_getpid+= -lpthread
LDADD.t_timer+= -lpthread
diff -r 2572595c2c28 -r d022959c2679 tests/syscall/t_msync.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/syscall/t_msync.c Thu Apr 07 17:38:02 2011 +0000
@@ -0,0 +1,225 @@
+/* $NetBSD: t_msync.c,v 1.1 2011/04/07 17:38:02 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_msync.c,v 1.1 2011/04/07 17:38:02 jruoho Exp $");
+
+#include <sys/mman.h>
+
+#include <atf-c.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static long page = 0;
+static const off_t off = 512;
+static const char path[] = "/tmp/msync";
+
+static const char *msync_sync(const char *, int);
+
+static const char *
+msync_sync(const char *garbage, int flags)
+{
+ char *buf, *map = MAP_FAILED;
+ const char *str = NULL;
+ size_t i, len;
+ ssize_t tot;
+ int fd, rv;
+
+ /*
+ * Create a temporary file, write
+ * one page to it, and map the file.
+ */
+ buf = malloc(page);
+
+ if (buf == NULL)
+ return NULL;
+
+ for (i = 0; i < (size_t)page; i++)
+ buf[i] = 'x';
+
+ fd = open(path, O_RDWR | O_CREAT, 0700);
+
+ if (fd < 0) {
+ str = "failed to open";
+ goto out;
+ }
+
+ tot = 0;
+
+ while (tot < page) {
+
+ rv = write(fd, buf, sizeof(buf));
+
+ if (rv < 0) {
+ str = "failed to write";
+ goto out;
+ }
+
+ tot += rv;
+ }
+
+ map = mmap(NULL, page, PROT_READ | PROT_WRITE, MAP_FILE, fd, 0);
+
+ if (map == MAP_FAILED) {
+ str = "failed to map";
+ goto out;
+ }
+
+ /*
+ * Seek to an arbitrary offset and
+ * write garbage to this position.
+ */
+ if (lseek(fd, off, SEEK_SET) != off) {
+ str = "failed to seek";
+ goto out;
+ }
+
+ len = strlen(garbage);
+ rv = write(fd, garbage, len);
+
+ if (rv != (ssize_t)len) {
+ str = "failed to write garbage";
+ goto out;
+ }
+
+ /*
+ * Synchronize the mapping and verify
+ * that garbage is at the given offset.
+ */
+ if (msync(map, page, flags) != 0) {
+ str = "failed to msync";
+ goto out;
+ }
+
+ if (memcmp(map + off, garbage, len) != 0) {
+ str = "msync did not synchronize";
+ goto out;
+ }
+
+out:
+ free(buf);
+
+ (void)close(fd);
+ (void)unlink(path);
+
+ if (map != MAP_FAILED)
+ (void)munmap(map, page);
+
+ return str;
+}
+
+ATF_TC(msync_async);
+ATF_TC_HEAD(msync_async, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test of msync(2), MS_ASYNC");
+}
+
+ATF_TC_BODY(msync_async, tc)
+{
+ const char *str;
+
+ str = msync_sync("garbage", MS_ASYNC);
+
+ if (str != NULL)
+ atf_tc_fail(str);
+}
+
+ATF_TC(msync_err);
+ATF_TC_HEAD(msync_err, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test error conditions in msync(2)");
+}
+
+ATF_TC_BODY(msync_err, tc)
+{
+
+ /*
+ * Test that invalid flags error out.
+ */
+ ATF_REQUIRE(msync_sync("error", -1) != NULL);
+ ATF_REQUIRE(msync_sync("error", INT_MAX) != NULL);
+
+ errno = 0;
+
+ ATF_REQUIRE(msync((void *)INT_MAX, page, MS_SYNC) != 0);
+ ATF_REQUIRE(errno == EFAULT);
+}
+
+ATF_TC(msync_invalidate);
+ATF_TC_HEAD(msync_invalidate, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test of msync(2), MS_INVALIDATE");
+}
+
+ATF_TC_BODY(msync_invalidate, tc)
+{
+ const char *str;
+
+ str = msync_sync("garbage", MS_INVALIDATE);
+
+ if (str != NULL)
+ atf_tc_fail(str);
+}
+
+ATF_TC(msync_sync);
+ATF_TC_HEAD(msync_sync, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test of msync(2), MS_SYNC");
+}
+
+ATF_TC_BODY(msync_sync, tc)
+{
+ const char *str;
+
+ str = msync_sync("garbage", MS_SYNC);
+
+ if (str != NULL)
+ atf_tc_fail(str);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ page = sysconf(_SC_PAGESIZE);
+
+ ATF_REQUIRE(page >= 0);
+ ATF_REQUIRE(page > off);
+
+ ATF_TP_ADD_TC(tp, msync_async);
+ ATF_TP_ADD_TC(tp, msync_err);
+ ATF_TP_ADD_TC(tp, msync_invalidate);
+ ATF_TP_ADD_TC(tp, msync_sync);
+
+ return atf_no_error();
+}
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