From 9e10ad3d5035686e4676c208c7d88f55f1c1a05c Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Tue, 19 Oct 2010 14:30:07 +0200
Subject: tests: add libmount lock test

Signed-off-by: Karel Zak <kzak@redhat.com>
---
 tests/commands.sh.in         |  1 +
 tests/expected/libmount/lock |  1 +
 tests/ts/libmount/lock       | 37 +++++++++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+)
 create mode 100644 tests/expected/libmount/lock
 create mode 100755 tests/ts/libmount/lock

(limited to 'tests')

diff --git a/tests/commands.sh.in b/tests/commands.sh.in
index d5e166bd..bcb428d4 100644
--- a/tests/commands.sh.in
+++ b/tests/commands.sh.in
@@ -19,6 +19,7 @@ TS_HELPER_CPUSET="$top_builddir/lib/test_cpuset"
 TS_HELPER_LIBMOUNT_OPTSTR="$top_builddir/shlibs/mount/src/test_optstr"
 TS_HELPER_LIBMOUNT_TAB="$top_builddir/shlibs/mount/src/test_tab"
 TS_HELPER_LIBMOUNT_UTILS="$top_builddir/shlibs/mount/src/test_utils"
+TS_HELPER_LIBMOUNT_LOCK="$top_builddir/shlibs/mount/src/test_lock"
 
 # TODO: use partx
 TS_HELPER_PARTITIONS="$top_builddir/shlibs/blkid/samples/partitions"
diff --git a/tests/expected/libmount/lock b/tests/expected/libmount/lock
new file mode 100644
index 00000000..d7e318d9
--- /dev/null
+++ b/tests/expected/libmount/lock
@@ -0,0 +1 @@
+50000
\ No newline at end of file
diff --git a/tests/ts/libmount/lock b/tests/ts/libmount/lock
new file mode 100755
index 00000000..1230e5cc
--- /dev/null
+++ b/tests/ts/libmount/lock
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Copyright (C) 2010 Karel Zak <kzak@redhat.com>
+
+TS_TOPDIR="$(dirname $0)/../.."
+TS_DESC="lock"
+
+. $TS_TOPDIR/functions.sh
+ts_init "$*"
+
+TESTPROG="$TS_HELPER_LIBMOUNT_LOCK"
+
+#
+# Be careful with number of processes. Don't forget that there is time limit
+# when the mount waits on the mtab lock. If you define too much processes some
+# of them will fail with timeout.
+#
+# Note: the original version (< 2.13) of util-linux is completely useless for
+# this test (maximum for this old version is NLOOPS=10 and NPROCESSES=5 (2-way
+# 2GHz machine)). It has terrible performance due a bad timeouts implemntation
+# in lock_mtab().
+#
+NLOOPS=1000
+NPROCESSES=50
+
+
+> $TS_OUTPUT.debug
+echo 0 > $TS_OUTPUT
+SYNCTIME=$(( $(date +%s) + 5 ))
+
+for id in $(seq 0 $(( $NPROCESSES - 1 ))); do
+	$TESTPROG --lock --synctime $SYNCTIME $TS_OUTPUT $NLOOPS >> $TS_OUTPUT.debug 2>&1 &
+done
+
+wait
+
+ts_finalize
-- 
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