diff options
| -rw-r--r-- | tests/runlibcgrouptest.sh | 204 |
1 files changed, 151 insertions, 53 deletions
diff --git a/tests/runlibcgrouptest.sh b/tests/runlibcgrouptest.sh index 4e74cb5..69a7a68 100644 --- a/tests/runlibcgrouptest.sh +++ b/tests/runlibcgrouptest.sh @@ -15,57 +15,78 @@ # Description: This script runs the the basic tests for testing libcgroup apis. # -DEBUG=true # for debug messages +DEBUG=false; # for debug messages FS_MOUNTED=0; # 0 for not mounted, 1 for mounted, 2 for multimounted -MOUNTPOINT="/tmp"; # Just to initialize +MOUNTPOINT=/dev/cgroup_controllers; # Just to initialize TARGET=/dev/cgroup_controllers; CONTROLLERS=cpu,memory; +NUM_MOUNT=1; # Number of places to be mounted on debug() { # Function parameter is the string to print out - if [ $DEBUG ] + if $DEBUG then echo SH:DBG: $1; fi } -umount_fs () +check_mount_fs () { - PROC_ENTRY=`cat /proc/mounts|grep cgroup|tr -s [:space:]|cut -d" " -f2`; + local NUM_MOUNT=0; + CGROUP=`cat /proc/mounts|grep -w cgroup|tr -s [:space:]|cut -d" " -f3`; - # Need to handle multiple mount points ? - if [ -n "$PROC_ENTRY" ] && [ "$PROC_ENTRY" != "$TARGET" ] - then - TARGET=$PROC_ENTRY; - fi; + # get first word in case of multiple mounts + CGROUP=`echo $CGROUP|cut -d" " -f1`; - # 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`; + debug "check_mount_fs(): CGROUP is $CGROUP"; if [ "$CGROUP" = "cgroup" ] then - FS_MOUNTED=1; + NUM_MOUNT=`cat /proc/mounts|grep -w cgroup|wc -l`; + debug "check_mount_fs(): fs mounted at $NUM_MOUNT places"; + + if [ $NUM_MOUNT -eq 1 ] + then + FS_MOUNTED=1; + else + # Any number of mounts is multi mount + FS_MOUNTED=2; + fi; + return 0; # True else FS_MOUNTED=0; + return 1; # false fi } +umount_fs () +{ + while check_mount_fs + do + PROC_ENTRY=`cat /proc/mounts|grep cgroup|tr -s [:space:]|cut -d" " -f2`; + # Get first mountpoint in case of multiple mounts + PROC_ENTRY=`echo $PROC_ENTRY|cut -d" " -f1`; + if [ -n "$PROC_ENTRY" ] + then + TARGET=$PROC_ENTRY; + # Need to take care if there are tasks running in any group ?? + # Also need to care if cpu and memory are mounted at different places + rmdir $TARGET/* 2> /dev/null ; + umount $TARGET; + rmdir $TARGET; + debug "umounted $TARGET"; + fi; + done + FS_MOUNTED=0; + TARGET=/dev/cgroup_controllers; #?? + echo "Cleanup done"; +} + # Check if kernel is not having any of the controllers enabled no_controllers() { - local CPU; - local MEMORY; + CPU=""; + MEMORY=""; if [ -e /proc/cgroups ] then CPU=`cat /proc/cgroups|grep -w cpu|cut -f1`; @@ -89,8 +110,14 @@ no_controllers() return 0; # true } + mount_fs () { + local NUM_MOUNT=0; # On how many places to mount on + local CUR_MOUNT=1; + FS_MOUNTED=0; + + # Check if kernel has controllers enabled if no_controllers then echo "Kernel has no controllers enabled"; @@ -99,38 +126,82 @@ mount_fs () exit 1; fi; - # Proceed further as kernel has controllers support - if [ -e $TARGET ] + # At least one Controller is enabled. So proceed further. + if [ -z $1 ] then - echo "WARN: $TARGET already exist..overwriting"; # any issue ? - umount_fs; + echo "WARN: No parameter passed to function mount_fs"; + echo "taking default as 0....So not mounting cgroup fs"; + else + NUM_MOUNT=$1; + debug "mount_fs fs will be mounted on $NUM_MOUNT places"; fi; - mkdir $TARGET; + # create so many directories i.e. mountpoints + while [ $NUM_MOUNT -ge $CUR_MOUNT ] + do + NEWTARGET="$TARGET-$CUR_MOUNT"; + if [ -e $NEWTARGET ] + then + echo "WARN: $NEWTARGET already exist..overwriting"; + check_mount_fs; # Possibly fs might be mounted on it + if [ $FS_MOUNTED -gt 0 ] + then + umount_fs; + else + rmdir $NEWTARGET ; + fi; + fi; + mkdir $NEWTARGET; - 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 + # In case of multimount, mount controllers at diff points + if $MULTIMOUNT ; then + if [ $CPU ] && [ $MEMORY ] ; then + if [ $CUR_MOUNT -eq 1 ] ; then + CONTROLLERS="cpu"; + else + CONTROLLERS="memory"; + fi; + else + echo "Only 1 controleer enabled in kernel"; + echo "So not running multiple mount testcases"; + exit 1; + fi; + fi; + + mount -t cgroup -o $CONTROLLERS cgroup $NEWTARGET; # 2> /dev/null? + if [ $? -ne 0 ] + then + echo "ERROR: Could not mount cgroup filesystem on $NEWTARGET." + echo "Exiting test"; + umount_fs; + exit -1; + fi; + CUR_MOUNT=`expr $CUR_MOUNT + 1`; + FS_MOUNTED=`expr $FS_MOUNTED + 1`; + + # Group created earlier may again be visible if not cleaned. + # So clean them all + if [ -e $NEWTARGET/group1 ] # first group that is created + then + # Need to handle if tasks are running in them + rmdir $NEWTARGET/group* + echo "WARN: Earlier groups found and removed..."; + 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 + debug "cgroup filesystem mounted on $NEWTARGET directory" + done; + + if [ $FS_MOUNTED -gt 2 ] 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" + FS_MOUNTED=2; + fi; + } get_mountpoint() { - # ??? need to handle multiple mount point + # need to handle how to pass multiple mount points to C file + # It will depend on the requirements if any MOUNTPOINT=`cat /proc/mounts|grep -w cgroup|tr -s [:space:]| \ cut -d" " -f2`; debug "mountpoint is $MOUNTPOINT" @@ -161,7 +232,7 @@ runtest() FILE=libcgrouptest01; check_mount_fs; # unmount fs if already mounted - if [ $FS_MOUNTED -eq 1 ] + if [ $FS_MOUNTED -ne 0 ] then umount_fs; fi; @@ -183,10 +254,15 @@ runtest() echo ============================== FILE=libcgrouptest01; check_mount_fs; - # mount fs if not already mounted + # mount fs at one point if not already mounted or multimounted + NUM_MOUNT=1; if [ $FS_MOUNTED -eq 0 ] then - mount_fs; + mount_fs $NUM_MOUNT; + elif [ $FS_MOUNTED -gt 1 ] + then + umount_fs; + mount_fs $NUM_MOUNT; fi; debug "FS_MOUNTED = $FS_MOUNTED" get_mountpoint; @@ -197,15 +273,37 @@ runtest() if [ $RC -ne 0 ] then echo Test binary $FILE exited abnormaly with return value $RC; - # Same commments as above fi; + umount_fs; # TestSet03: Run tests with mounting cgroup filesystem at multiple points echo; echo Running third set of testcases; echo ============================== - # To be done + FILE=libcgrouptest01; + check_mount_fs; + # mount fs at multiple points + MULTIMOUNT=true; + NUM_MOUNT=2; + if [ $FS_MOUNTED -eq 0 ] + then + mount_fs $NUM_MOUNT; + elif [ $FS_MOUNTED -eq 1 ] + then + umount_fs; + mount_fs $NUM_MOUNT; + 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; + fi; umount_fs; + exit 0; |