1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#!/bin/bash
#
# $Header: /var/cvsroot/gentoo-x86/sys-process/cronbase/files/run-crons-0.3.2,v 1.1 2005/03/09 12:51:34 ka0ttic Exp $
#
# 08 Mar 2005; Aaron Walker <ka0ttic@gentoo.org> run-crons:
# Ignore the error messages from find caused by race conditions, since
# we could care less about the error as long as the file has been removed.
# See bug 8506.
#
# 06 May 2004; Aron Griffis <agriffis@gentoo.org> run-crons:
# Make the locking actually work. The old code was racy.
# Thanks to Mathias Gumz in bug 45155 for some cleanups.
#
# 23 Jun 2002; Jon Nelson <jnelson@gentoo.org> run-crons:
# fixed a race condition, where cron jobs and run-crons wanted to
# delete touch files
#
# 20 Apr 2002; Thilo Bangert <bangert@gentoo.org> run-crons:
# moved lastrun directory to /var/spool/cron/lastrun
#
# Author: Achim Gottinger <achim@gentoo.org>
#
# Mostly copied from SuSE
#
# this script looks into /etc/cron.[hourly|daily|weekly|monthly]
# for scripts to be executed. The info about last run is stored in
# /var/spool/cron/lastrun
LOCKDIR=/var/spool/cron/lastrun
LOCKFILE=${LOCKDIR}/lock
mkdir -p ${LOCKDIR}
# Make sure we're not running multiple instances at once.
# Try twice to lock, otherwise give up.
for ((i = 0; i < 2; i = i + 1)); do
ln -sn $$ ${LOCKFILE} 2>/dev/null && break
# lock failed, check for a running process.
# handle both old- and new-style locking.
cronpid=$(readlink ${LOCKFILE} 2>/dev/null) ||
cronpid=$(cat ${LOCKFILE} 2>/dev/null) ||
continue # lockfile disappeared? try again
# better than kill -0 because we can verify that it's really
# another run-crons process
if [[ $(</proc/${cronpid}/cmdline) == $(</proc/$$/cmdline) ]] 2>/dev/null; then
# whoa, another process is really running
exit 0
else
rm -f ${LOCKFILE}
fi
done
# Check to make sure locking was successful
if [[ ! -L ${LOCKFILE} ]]; then
echo "Can't create or read existing ${LOCKFILE}, giving up"
exit 1
fi
# Set a trap to remove the lockfile when we're finished
trap "rm -f ${LOCKFILE}" 0 1 2 3 15
for BASE in hourly daily weekly monthly
do
CRONDIR=/etc/cron.${BASE}
test -d $CRONDIR || continue
if [ -e ${LOCKDIR}/cron.$BASE ]
then
case $BASE in
hourly)
#>= 1 hour, 5 min -=> +65 min
TIME="-cmin +65" ;;
daily)
#>= 1 day, 5 min -=> +1445 min
TIME="-cmin +1445" ;;
weekly)
#>= 1 week, 5 min -=> +10085 min
TIME="-cmin +10085" ;;
monthly)
#>= 31 days, 5 min -=> +44645 min
TIME="-cmin +44645" ;;
esac
find ${LOCKDIR} -name cron.$BASE $TIME -exec rm {} \; &>/dev/null || true
fi
# if there is no touch file, make one then run the scripts
if [ ! -e ${LOCKDIR}/cron.$BASE ]
then
touch ${LOCKDIR}/cron.$BASE
set +e
for SCRIPT in $CRONDIR/*
do
if [[ -x $SCRIPT && ! -d $SCRIPT ]]; then
$SCRIPT
fi
done
fi
done
# Clean out bogus cron.$BASE files with future times
touch ${LOCKDIR}
find ${LOCKDIR} -newer ${LOCKDIR} -exec /bin/rm -f {} \; &>/dev/null || true
|
GitWeb