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[src/trunk]: src Few fundamental consistency checks for alarm(2).



details:   https://anonhg.NetBSD.org/src/rev/0482ecff4d33
branches:  trunk
changeset: 764807:0482ecff4d33
user:      jruoho <jruoho%NetBSD.org@localhost>
date:      Thu May 05 13:22:56 2011 +0000

description:
Few fundamental consistency checks for alarm(2).

diffstat:

 distrib/sets/lists/tests/mi  |    4 +-
 tests/lib/libc/gen/Makefile  |    3 +-
 tests/lib/libc/gen/t_alarm.c |  150 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 155 insertions(+), 2 deletions(-)

diffs (194 lines):

diff -r 7a9071334643 -r 0482ecff4d33 distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi       Thu May 05 09:07:59 2011 +0000
+++ b/distrib/sets/lists/tests/mi       Thu May 05 13:22:56 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.329 2011/05/05 05:39:11 jruoho Exp $
+# $NetBSD: mi,v 1.330 2011/05/05 13:22:56 jruoho Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -348,6 +348,7 @@
 ./usr/libdata/debug/usr/tests/lib/libc/db                              tests-lib-debug
 ./usr/libdata/debug/usr/tests/lib/libc/db/h_db.debug                   tests-lib-debug         debug,atf
 ./usr/libdata/debug/usr/tests/lib/libc/gen                             tests-lib-debug
+./usr/libdata/debug/usr/tests/lib/libc/gen/t_alarm.debug               tests-lib-debug         debug,atf
 ./usr/libdata/debug/usr/tests/lib/libc/gen/t_basedirname.debug         tests-lib-debug         debug,atf
 ./usr/libdata/debug/usr/tests/lib/libc/gen/t_dir.debug                 tests-lib-debug         debug,atf
 ./usr/libdata/debug/usr/tests/lib/libc/gen/t_fmtcheck.debug            tests-lib-debug         debug,atf
@@ -1772,6 +1773,7 @@
 ./usr/tests/lib/libc/db/t_db                   tests-lib-tests         atf
 ./usr/tests/lib/libc/gen                       tests-lib-tests
 ./usr/tests/lib/libc/gen/Atffile               tests-lib-tests         atf
+./usr/tests/lib/libc/gen/t_alarm               tests-lib-tests         atf
 ./usr/tests/lib/libc/gen/t_basedirname         tests-lib-tests         atf
 ./usr/tests/lib/libc/gen/t_dir                 tests-lib-tests         atf
 ./usr/tests/lib/libc/gen/t_fmtcheck            tests-lib-tests         atf
diff -r 7a9071334643 -r 0482ecff4d33 tests/lib/libc/gen/Makefile
--- a/tests/lib/libc/gen/Makefile       Thu May 05 09:07:59 2011 +0000
+++ b/tests/lib/libc/gen/Makefile       Thu May 05 13:22:56 2011 +0000
@@ -1,9 +1,10 @@
-# $NetBSD: Makefile,v 1.19 2011/04/17 06:18:23 jruoho Exp $
+# $NetBSD: Makefile,v 1.20 2011/05/05 13:22:56 jruoho Exp $
 
 .include <bsd.own.mk>
 
 TESTSDIR=      ${TESTSBASE}/lib/libc/gen
 
+TESTS_C+=      t_alarm
 TESTS_C+=      t_basedirname
 TESTS_C+=      t_dir
 TESTS_C+=      t_fmtcheck
diff -r 7a9071334643 -r 0482ecff4d33 tests/lib/libc/gen/t_alarm.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/gen/t_alarm.c      Thu May 05 13:22:56 2011 +0000
@@ -0,0 +1,150 @@
+/* $NetBSD: t_alarm.c,v 1.1 2011/05/05 13:22:56 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_alarm.c,v 1.1 2011/05/05 13:22:56 jruoho Exp $");
+
+#include <sys/wait.h>
+
+#include <atf-c.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+
+static bool    fail;
+static void    handler(int);
+
+static void
+handler(int signo)
+{
+
+       if (signo == SIGALRM)
+               fail = false;
+}
+
+ATF_TC(alarm_basic);
+ATF_TC_HEAD(alarm_basic, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "A basic test of alarm(2)");
+}
+
+ATF_TC_BODY(alarm_basic, tc)
+{
+
+       ATF_REQUIRE(signal(SIGALRM, handler) == 0);
+
+       fail = true;
+
+       (void)alarm(1);
+       (void)sleep(2);
+
+       if (fail != false)
+               atf_tc_fail("alarm(3) failed to deliver signal");
+}
+
+ATF_TC(alarm_fork);
+ATF_TC_HEAD(alarm_fork, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "Does fork(2) clear a pending alarm?");
+}
+
+ATF_TC_BODY(alarm_fork, tc)
+{
+       unsigned int rv;
+       pid_t pid;
+       int sta;
+
+       /*
+        * Any pending alarms should be
+        * cleared in the child process.
+        */
+       (void)alarm(60);
+
+       pid = fork();
+       ATF_REQUIRE(pid >= 0);
+
+       if (pid == 0) {
+
+               rv = alarm(0);
+
+               if (rv != 0)
+                       _exit(EXIT_FAILURE);
+
+               _exit(EXIT_SUCCESS);
+       }
+
+       (void)alarm(0);
+       (void)wait(&sta);
+
+       if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
+               atf_tc_fail("pending alarm was not cleared for child");
+}
+
+ATF_TC(alarm_previous);
+ATF_TC_HEAD(alarm_previous, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "Test return value from alarm(2)");
+}
+
+ATF_TC_BODY(alarm_previous, tc)
+{
+       unsigned int rv;
+
+       /*
+        * See that alarm(2) returns the amount
+        * left on the timer from the previous call.
+       */
+       rv = alarm(60);
+
+       if (rv != 0)
+               goto fail;
+
+       rv = alarm(0);
+
+       if (rv < 50)
+               goto fail;
+
+       (void)alarm(0);
+
+       return;
+
+fail:
+       atf_tc_fail("invalid return value from alarm(2)");
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+       ATF_TP_ADD_TC(tp, alarm_basic);
+       ATF_TP_ADD_TC(tp, alarm_fork);
+       ATF_TP_ADD_TC(tp, alarm_previous);
+
+       return atf_no_error();
+}



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