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Diffstat (limited to 'tests/runlibcgrouptest.sh')
| -rw-r--r-- | tests/runlibcgrouptest.sh | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/tests/runlibcgrouptest.sh b/tests/runlibcgrouptest.sh new file mode 100644 index 0000000..4e74cb5 --- /dev/null +++ b/tests/runlibcgrouptest.sh @@ -0,0 +1,211 @@ +#!/bin/bash +# usage ./runlibcgrouptest.sh +# Copyright IBM Corporation. 2008 +# +# Author: Sudhir Kumar <skumar@linux.vnet.ibm.com> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of version 2.1 of the GNU Lesser General Public License +# as published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# +# Description: This script runs the the basic tests for testing libcgroup apis. +# + +DEBUG=true # for debug messages +FS_MOUNTED=0; # 0 for not mounted, 1 for mounted, 2 for multimounted +MOUNTPOINT="/tmp"; # Just to initialize +TARGET=/dev/cgroup_controllers; +CONTROLLERS=cpu,memory; + +debug() +{ + # Function parameter is the string to print out + if [ $DEBUG ] + then + echo SH:DBG: $1; + fi +} + +umount_fs () +{ + PROC_ENTRY=`cat /proc/mounts|grep cgroup|tr -s [:space:]|cut -d" " -f2`; + + # Need to handle multiple mount points ? + if [ -n "$PROC_ENTRY" ] && [ "$PROC_ENTRY" != "$TARGET" ] + then + TARGET=$PROC_ENTRY; + fi; + + # Need to take care if there are tasks running in any group ?? + # Also need to take care if there are groups in the hierarchy ? + rmdir $TARGET/* 2> /dev/null ; + umount $TARGET; + rmdir $TARGET; + FS_MOUNTED=0; + TARGET=/dev/cgroup_controllers; + echo "Cleanup done"; +} + +check_mount_fs() +{ + CGROUP=`cat /proc/mounts|grep -w cgroup|tr -s [:space:]|cut -d" " -f3`; + if [ "$CGROUP" = "cgroup" ] + then + FS_MOUNTED=1; + else + FS_MOUNTED=0; + fi +} + +# Check if kernel is not having any of the controllers enabled +no_controllers() +{ + local CPU; + local MEMORY; + if [ -e /proc/cgroups ] + then + CPU=`cat /proc/cgroups|grep -w cpu|cut -f1`; + MEMORY=`cat /proc/cgroups|grep -w memory|cut -f1`; + fi; + + if [ -n $CPU ] && [ -n $MEMORY ] + then + CONTROLLERS=$CPU,$MEMORY ; + return 1; # false + elif [ -n $CPU ] + then + CONTROLLERS=$CPU ; + return 1; # false + elif [ -n $MEMORY ] + then + CONTROLLERS=$MEMORY ; + return 1; # false + fi; + # Kernel has no controllers enabled + return 0; # true +} + +mount_fs () +{ + if no_controllers + then + echo "Kernel has no controllers enabled"; + echo "Recompile your kernel with controllers enabled" + echo "Exiting the tests....."; + exit 1; + fi; + + # Proceed further as kernel has controllers support + if [ -e $TARGET ] + then + echo "WARN: $TARGET already exist..overwriting"; # any issue ? + umount_fs; + fi; + + mkdir $TARGET; + + mount -t cgroup -o $CONTROLLERS cgroup $TARGET; # 2> /dev/null? + if [ $? -ne 0 ] + then + echo "ERROR: Could not mount cgroup filesystem on $TARGET." + echo "Exiting test"; + umount_fs; + exit -1; + fi + + # Group created earlier may again be visible if not cleaned properly. + # So clean them all + if [ -e $TARGET/group1 ] # first group that is created + then + rmdir $TARGET/* 2>/dev/null + echo "WARN: Earlier groups found and removed..."; + fi + FS_MOUNTED=1; + debug "INFO: cgroup filesystem mounted on $TARGET directory" +} + +get_mountpoint() +{ + # ??? need to handle multiple mount point + MOUNTPOINT=`cat /proc/mounts|grep -w cgroup|tr -s [:space:]| \ + cut -d" " -f2`; + debug "mountpoint is $MOUNTPOINT" +} +runtest() +{ + MOUNT_INFO=$1; + TEST_EXEC=$2; + if [ -f $TEST_EXEC ] + then + ./$TEST_EXEC $MOUNT_INFO $MOUNTPOINT; + if [ $? -ne 0 ] + then + echo Error in running ./$TEST_EXEC + echo Exiting tests. + else + PID=$!; + fi; + else + echo Sources not compiled. please run make; + fi +} +# TestSet01: Run tests without mounting cgroup filesystem + echo; + echo Running first set of testcases; + echo ============================== + FS_MOUNTED=0; + FILE=libcgrouptest01; + check_mount_fs; + # unmount fs if already mounted + if [ $FS_MOUNTED -eq 1 ] + then + umount_fs; + fi; + debug "FS_MOUNTED = $FS_MOUNTED" + runtest $FS_MOUNTED $FILE + + wait $PID; + RC=$?; + if [ $RC -ne 0 ] + then + echo Test binary $FILE exited abnormaly with return value $RC; + # Do not exit here. Failure in this case does not imply + # failure in other cases also + fi; + +# TestSet02: Run tests with mounting cgroup filesystem + echo; + echo Running second set of testcases; + echo ============================== + FILE=libcgrouptest01; + check_mount_fs; + # mount fs if not already mounted + if [ $FS_MOUNTED -eq 0 ] + then + mount_fs; + fi; + debug "FS_MOUNTED = $FS_MOUNTED" + get_mountpoint; + runtest $FS_MOUNTED $FILE + + wait $PID; + RC=$?; + if [ $RC -ne 0 ] + then + echo Test binary $FILE exited abnormaly with return value $RC; + # Same commments as above + fi; + + +# TestSet03: Run tests with mounting cgroup filesystem at multiple points + echo; + echo Running third set of testcases; + echo ============================== + # To be done + + umount_fs; + exit 0; |