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#! /bin/sh
. "${PM_FUNCTIONS}"
test_pulse_system() {
getent passwd pulse | awk -F: '{print $3}'
}
get_pulse_users() {
PULSE_SYSTEM_USER=$(test_pulse_system)
if [ -z "${PULSE_SYSTEM_USER}" ]; then
ps -C pulseaudio -o uid= | tr -d ' '
else
ps -C pulseaudio -o uid= | tr -d ' ' | sed s/${PULSE_SYSTEM_USER}//
fi
}
# $1 = sink|source
# $2 = username
save_pulse_state_and_mute() {
su "${2}" -l -c -- 'pacmd list-${1}s | \
sed -n "s/^[[:space:]*]*//; /\(index\|mute\)/p" | \
(index="";
while read field value; do
if [ ${field%:} = "index" ]; then
index=${value}
else
savestate pulse:"${2}":${1}${index} ${value}
pacmd set-${1}-mute ${index} yes
fi
done)'
}
# $1 = sink|source
# $2 = username
restore_pulse_state() {
su "${2}" -l -c -- 'pacmd list-${1}s | \
sed -n "s/^[[:space:]*]*index: //p" | \
while read index; do
if state_exists pulse:"${2}":${1}${index}; then
pacmd \
set-${1}-mute \
${index} \
$(restorestate pulse:"${2}":${1}${index})
fi
done'
}
suspend_pulse() {
for i in $(get_pulse_users); do
THIS_USER="$(getent passwd ${i} | cut -f1 -d:)"
if su "${THIS_USER}" -l -c -- 'ck-list-sessions | grep "active = TRUE"' > /dev/null 2>&1; then
save_pulse_state_and_mute sink "${THIS_USER}"
save_pulse_state_and_mute source "${THIS_USER}"
su "${THIS_USER}" -l -c -- 'pacmd suspend true' > /dev/null 2>&1
break
fi
done
}
resume_pulse() {
for i in $(get_pulse_users); do
THIS_USER="$(getent passwd ${i} | cut -f1 -d:)"
if su "${THIS_USER}" -l -c -- 'ck-list-sessions | grep "active = TRUE"' > /dev/null 2>&1; then
restore_pulse_state sink "${THIS_USER}"
restore_pulse_state source "${THIS_USER}"
su "${THIS_USER}" -l -c -- 'pacmd suspend false' > /dev/null 2>&1
break
fi
done
}
case $1 in
hibernate|suspend)
suspend_pulse
;;
thaw|resume)
resume_pulse
;;
*) exit $NA
;;
esac
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