29 lines
754 B
Bash
Executable File
29 lines
754 B
Bash
Executable File
#!/bin/bash
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PATH=/usr/local/sbin:/usr/local/bin:$PATH
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SERVICE=/etc/init.d/snail-xserver
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PROC=nvrun
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LOCK_FILE=/tmp/.snail.lock
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FIFO_FILE=/tmp/.snail.fifo
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$SERVICE stop && snail.nv_pwr_off # stop X service
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touch $LOCK_FILE && chown root:video $LOCK_FILE && chmod 660 $LOCK_FILE # create lock file
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rm -f $FIFO_FILE && mkfifo --mode 660 $FIFO_FILE && chgrp video $FIFO_FILE # create fifo
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{
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echo >$FIFO_FILE | cat $FIFO_FILE >/dev/null # flush fifo
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flock -n 9 # make exclusive lock
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while [ 1 ]; do
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read <$FIFO_FILE
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snail.nv_pwr_on && $SERVICE start # starting X server
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flock -u 9
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flock 9
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echo >$FIFO_FILE | cat $FIFO_FILE >/dev/null # flush fifo
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$SERVICE stop && snail.nv_pwr_off # stopping X server
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done
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} 9>$LOCK_FILE
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