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#!/bin/sh
# vim:noexpandtab
# Default values go here. It is important to _not_ initialize some
# variables here. They are:
#
# PM_CMDLINE
# RESUME_MODULES
#
# for great debugging!
[ "${PM_DEBUG}" = "true" ] && {
export PM_DEBUG
set -x
}
set -a
PM_UTILS_LIBDIR="@PM-UTILS-LIBDIR@"
PM_UTILS_ETCDIR="@PM-UTILS-SYSCONFDIR@"
PM_UTILS_RUNDIR="/var/run/pm-utils"
PATH=/sbin:/usr/sbin:/bin:/usr/bin:"${PM_UTILS_LIBDIR}"/bin
HIBERNATE_MODE="platform"
HIBERNATE_RESUME_POST_VIDEO=no
INHIBIT="${PM_UTILS_RUNDIR}/inhibit"
PM_LOGFILE="${PM_LOGFILE:=/var/log/pm-suspend.log}"
SUSPEND_MODULES=""
TEMPORARY_CPUFREQ_GOVERNOR="performance"
LOCKDIR="${PM_UTILS_RUNDIR}/locks"
STORAGEDIR="${PM_UTILS_RUNDIR}/storage"
SLEEP_MODULE="kernel"
NA=254
NX=253
DX=252
PM_FUNCTIONS="$PM_UTILS_LIBDIR/functions"
# Use c sort order
export LC_COLLATE=C
[ -f "${PM_UTILS_LIBDIR}"/defaults ] && . "${PM_UTILS_LIBDIR}"/defaults
set +a
for cfg in "${PM_UTILS_ETCDIR}"/config.d/*[!~] ; do
[ -f "$cfg" ] || continue
set -a
. "${cfg}"
set +a
done
. "${PM_FUNCTIONS}"
mkdir -p "$STORAGEDIR"
[ -f "$PM_UTILS_ETCDIR/blacklist" ] && {
# loop through the blacklist file, adding entries to our hook blacklist.
# Blacklist file format:
# name debugging text
# Comments begin with hash signs.
sed 's,#.*$,,g' < "$PM_UTILS_ETCDIR/blacklist" | \
while read entry comment; do
# skip blank lines
[ -z "$entry" ] && continue
disablehook "${entry##*/}" "${comment:-blacklist}"
done
}
take_suspend_lock()
{
VT=$(fgconsole)
chvt 63
try_lock "pm-utils.lock" || return 1
mkdir -p "${STORAGEDIR}"
return 0
}
remove_suspend_lock()
{
rm -rf "${STORAGEDIR}"
chvt 1
chvt $VT
release_lock "pm-utils.lock"
}
hook_exit_status(){
case $1 in
0) echo "success." ;;
$NA) echo "not applicable." ;;
$NX) echo "not executable." ;;
$DX) echo "disabled." ;;
*) echo "Returned exit code $1." ;;
esac
}
hook_ok()
{
[ -f "$STORAGEDIR/disable_hook:${1##*/}" ] && return $DX
[ -x "$1" ] || return $NX
return 0
}
run_hooks() {
# $1 = type of hook to find.
# $2 = paramaters to pass to hooks.
# $3 = if present and equal to "reverse", run hooks backwards.
# Currently only power and sleep are meaningful.
local syshooks="${PM_UTILS_ETCDIR}/$1.d"
local phooks="${PM_UTILS_LIBDIR}/$1.d"
command_exists before_hooks && before_hooks
local sort="sort"
local base
local hook
local oifs="${IFS}"
# the next two lines are not a typo or a formatting error!
local nifs="
"
IFS="${nifs}" # tolerate spaces in filenames.
[ "$3" = "reverse" ] && sort="sort -r"
for base in $(IFS="${oifs}"; for f in "$syshooks/"*[!~] "$phooks/"*[!~];
do [ -O "$f" ] && echo ${f##*/} ; done | $sort | uniq) ;
do
if [ -f "$syshooks/$base" ]; then
hook="$syshooks/$base"
elif [ -f "$phooks/$base" ]; then
hook="$phooks/$base"
fi
echo $(date): running ${hook} $2
hook_ok "$hook" && (
IFS="${oifs}"
"${hook}" $2
)
hook_exit_status $?
done
IFS="${oifs}"
}
init_logfile()
{
if [ -h "$1" ]; then
echo "$1 is a symbolic link, refusing to overwrite."
return 1
elif [ ! -O "$1" ]; then
echo "We do not own $1, refusing to overwrite."
return 1
elif [ -z "$1" ]; then
echo "Please pass a filename to init_logfile."
return 1
fi
exec > "$1" 2>&1
}
SLEEP_FUNCTIONS="${PM_UTILS_LIBDIR}/module.d/${SLEEP_MODULE}"
[ -f "${SLEEP_FUNCTIONS}" ] || {
echo "Requested sleep module $SLEEP_MODULE not available."
exit 1
}
. "${SLEEP_FUNCTIONS}"
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