22b28520cd
cwfs and hjfs create ther /srv command files with ORCLOSE flag, so they get removed once the fileserver terminates. we can use this to check that the fileserver has in fact finished halting without making assumtions about the time it should maximally take for any fileserver to write out its buffers to disk.
78 lines
1.3 KiB
Bash
Executable file
78 lines
1.3 KiB
Bash
Executable file
#!/bin/rc
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# fshalt [-r] - sync (flush) and, if possible, halt all file servers
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# and optionally reboot
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rfork en
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reboot=no
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scram=no
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switch ($#*) {
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case 0
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case 1
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reboot=yes
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case *
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echo usage: $0 '[-r]' >[1=2]
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exit usage
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}
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path=(/bin)
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builtin cd /
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bind -c '#s' /srv
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bind '#p' /proc
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unmount /mnt/consoles >[2]/dev/null
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kill consolefs | rc # don't compete with /mnt/consoles
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sleep 1
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c=`{ls /srv/cwfs*cmd >[2]/dev/null}
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h=`{ls /srv/hjfs*cmd >[2]/dev/null}
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# for scram, don't scram other systems
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bind -b '#P' /dev
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if(! ~ $reboot yes){
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if (test -e '#P'/apm)
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scram=yes
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if (test -e '#P'/acpitbls -a -e '#P'/iow)
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scram=yes
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}
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# halting (binaries we run can't be on the fs we're halting)
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ramfs
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builtin cd /tmp
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cp /bin/echo /tmp
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mkdir /tmp/lib
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cp /rc/lib/rcmain /tmp/lib
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cp /bin/ns /tmp
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cp /bin/rc /tmp
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cp /bin/sed /tmp
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cp /bin/sleep /tmp
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cp /bin/scram /tmp
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cp /bin/test /tmp
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bind /tmp /rc
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bind /tmp /bin
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# put this in a shell function so this rc script doesn't get read
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# when it's no longer accessible
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fn x {
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echo
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echo -n halting...
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for (i in $c $h)
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echo halt >>$i
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for (i in $c $h){
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echo -n $i...
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while(test -e $i)
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sleep 1
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}
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echo
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echo done halting
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if (~ $reboot yes) {
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echo rebooting...
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echo reboot >'#c/reboot'
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}
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if (~ $scram yes){
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scram
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echo 'It''s now safe to turn off your computer'
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}
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}
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x
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