Dynamic Reconfiguration ユーザーズガイド 2.6

4.2 bindp

#!/bin/sh

PATH=/usr/bin:/usr/sbin:/opt/FJSVdr/bin; export PATH

# ----- script starts here -----

#

# get process id of "Bound"

PID=`ps -e -o fname -o pid | awk '{if ($1=="Bound") print $2}'`

if [ -z "$PID" ]

then

    exit 0

fi

case "$1" in

'checkadd')

    # checking procedure whether connect is possible or not

    exit 0

    ;;

'preadd')

    # procedure before device is added

    exit 0

    ;;

'postadd')

    # procedure after device is added

    # get incoming CPU IDs

    DETACHCPUS=`dr_info cpu`

    if [ $? -ne 0 ]

    then

        exit 1

    fi

    cpu1=`echo $DETACHCPUS | cut -f1 -d':'`

    cpu2=`echo $DETACHCPUS | cut -f2 -d':'`

    cpu3=`echo $DETACHCPUS | cut -f3 -d':'`

    cpu4=`echo $DETACHCPUS | cut -f4 -d':'`

    # get biggest CPU ID from incoming CPUs.

    for ID in $cpu1 $cpu2 $cpu3 $cpu4

    do

        psrinfo $ID | grep on-line > /dev/null 2>&1

        if [ $? -eq 0 ]

        then

            CPU=$ID

        fi

    done

    if [ -z "$CPU" ]

    then

            exit 0

    fi

    # re-bind  to incoming CPU

    pbind -u $PID > /dev/null 2>&1

    pbind -b $CPU $PID > /dev/null 2>&1

    dr_message bindp 0002 $PID $CPU

    exit 0

    ;;

'canceladd')

    # procedure when attach is cancelled

    exit 0

    ;;

'checkremove')

    # checking procedure whether disconnect is possible or not

    exit 0

    ;;

'preremove')

    # procedure before device is removed

    # get CPU ID that "Bound" is bound.

    CPU=`pbind | grep $PID | awk '{print $4}'`

    if [ -z "$CPU" ]

    then

        # "Bound" process is not bound cpu.

        exit 0

    fi

    # get outgoing CPU IDs

    DETACHCPUS=`dr_info cpu`

    if [ $? -ne 0 ]

    then

        exit 1

    fi

    cpu1=`echo $DETACHCPUS | cut -f1 -d':'`

    cpu2=`echo $DETACHCPUS | cut -f2 -d':'`

    cpu3=`echo $DETACHCPUS | cut -f3 -d':'`

    cpu4=`echo $DETACHCPUS | cut -f4 -d':'`

    # check if $CPU is going to detach

    if [ "x$CPU" = "x$cpu1" -o "x$CPU" = "x$cpu2" -o "x$CPU" = "x$cpu3" -o "x$CPU" = "x$cpu4" ]

    then

        # $PID is bound to outgoing CPU.

        dr_query bindp 0001 $PID

        if [ $? -ne 0 ]

        then

            # user rejected DR.

            dr_message bindp 0003 $PID $CPU

            exit 11

        fi

        # unbind 

        pbind -u $PID > /dev/null 2>&1

        dr_message bindp 0001 $PID $CPU

        # save $CPU for cancel procedure

        dr_put_db bindp cpu=$CPU

    fi

    exit 0

    ;;

'postremove')

    # procedure after device is removed

    # get biggest CPU ID.

        NUMCPU=`psrinfo | grep on-line | wc -l`

        MAXID=`psrinfo | grep on-line | sed -n "${NUMCPU}p" | awk '{print $1}'`

    # bind

    pbind -b $MAXID $PID > /dev/null 2>&1

    dr_message bindp 0002 $PID $MAXID

    exit 0

    ;;

'cancelremove')

    # procedure when detach is cancelled

    CPU=`dr_get_db bindp cpu`

    if [ -z "$CPU" ]

    then

        exit 0

    fi

    if [ $PID ]

    then

        pbind -b $CPU $PID > /dev/null 2>&1

        dr_message bindp 0002 $PID $CPU

    fi

    exit 0

    ;;

*)

    exit 1

    ;;

esac