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https://github.com/limosek/zaf.git
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38 lines
662 B
Bash
38 lines
662 B
Bash
#!/bin/sh
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. /etc/zaf.conf
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. ${ZAF_LIB_DIR}/zaf.lib.sh
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help() {
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echo "$0 key cmd"
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exit 2
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}
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lkey="$1"
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[ -z "$lkey" ] && help
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shift
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[ -z "${ZAF_LOCK_SECONDS}" ] && seconds=5
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[ -z "${ZAF_LOCK_FORCE}" ] && force=1
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lockfile="${ZAF_TMP_DIR}/zaflock_${lkey}"
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i=0
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while [ -f "$lockfile" ] && [ $i -lt $seconds ]; do
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sleep 1
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i=$(expr $i + 1)
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done
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if [ -f "$lockfile" ] && [ -n "$force" ]; then
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logger -s -t "zlock" -p daemon.warn "Releasing $lockfile!"
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rm -f "$lockfile"
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fi
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if [ -f "$lockfile" ] && [ -z "$force" ]; then
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logger -s -t "zlock" -p daemon.err "Could not get lock for $lockfile!"
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exit 1
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fi
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touch "$lockfile"
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[ -n "$*" ] && $@
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rm -f "$lockfile"
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