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Wait AC Power #45

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Wait AC Power #45

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14c44e9
Wait AC Power online before to perform the actions.
comio Feb 20, 2018
edc384f
Implement logic on unkwnown power status.
comio Mar 6, 2018
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9 changes: 9 additions & 0 deletions btrfs-balance.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,15 @@ fi
LOGIDENTIFIER='btrfs-balance'
. $(dirname $(realpath $0))/btrfsmaintenance-functions

if [ "$BTRFS_BALANCE_WAIT_AC_POWER" = "true" ]; then
if ! wait_ac_power $BTRFS_AC_POWER_TIMEOUT; then
if [ "$BTRFS_AC_POWER_ACTION_ON_NO_AC_POWER" == "abort" ]; then
echo "No AC Power. Abort"
exit 1
fi
fi
fi

{
evaluate_auto_mountpoint BTRFS_BALANCE_MOUNTPOINTS
OIFS="$IFS"
Expand Down
10 changes: 10 additions & 0 deletions btrfs-defrag.sh
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Expand Up @@ -15,6 +15,16 @@ if [ -f /etc/default/btrfsmaintenance ] ; then
fi

LOGIDENTIFIER='btrfs-defrag'
$(dirname $(realpath $0))/btrfsmaintenance-functions

if [ "$BTRFS_BALANCE_WAIT_AC_POWER" = "true" ]; then
if ! wait_ac_power $BTRFS_AC_POWER_TIMEOUT; then
if [ "$BTRFS_AC_POWER_ACTION_ON_NO_AC_POWER" == "abort" ]; then
echo "No AC Power. Abort"
exit 1
fi
fi
fi

{
OIFS="$IFS"
Expand Down
10 changes: 10 additions & 0 deletions btrfs-scrub.sh
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Expand Up @@ -14,9 +14,19 @@ if [ -f /etc/default/btrfsmaintenance ] ; then
. /etc/default/btrfsmaintenance
fi


LOGIDENTIFIER='btrfs-scrub'
. $(dirname $(realpath $0))/btrfsmaintenance-functions

if [ "$BTRFS_BALANCE_WAIT_AC_POWER" = "true" ]; then
if ! wait_ac_power $BTRFS_AC_POWER_TIMEOUT; then
if [ "$BTRFS_AC_POWER_ACTION_ON_NO_AC_POWER" == "abort" ]; then
echo "No AC Power. Abort"
exit 1
fi
fi
fi

readonly=
if [ "$BTRFS_SCRUB_READ_ONLY" = "true" ]; then
readonly=-r
Expand Down
9 changes: 9 additions & 0 deletions btrfs-trim.sh
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Expand Up @@ -17,6 +17,15 @@ fi
LOGIDENTIFIER='btrfs-trim'
. $(dirname $(realpath $0))/btrfsmaintenance-functions

if [ "$BTRFS_BALANCE_WAIT_AC_POWER" = "true" ]; then
if ! wait_ac_power $BTRFS_AC_POWER_TIMEOUT; then
if [ "$BTRFS_AC_POWER_ACTION_ON_NO_AC_POWER" == "abort" ]; then
echo "No AC Power. Abort"
exit 1
fi
fi
fi

{
evaluate_auto_mountpoint BTRFS_TRIM_MOUNTPOINTS
OIFS="$IFS"
Expand Down
82 changes: 82 additions & 0 deletions btrfsmaintenance-functions
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Expand Up @@ -76,3 +76,85 @@ is_btrfs() {
[ "$FS" == "btrfs" ] && return 0
return 1
}

# function: check_power_status
# parameter:
#
# Detect AC power or not in a portable way
# Exit 0 if on AC power, 1 if not and 255 if we don't know how to work it out
# Code from Openrc/scripts/on_ac_power
check_power_status() {
local state=255
if [ -f /proc/acpi/ac_adapter/*/state ]; then
cat /proc/acpi/ac_adapter/*/state | while read line; do
case "$line" in
"state:"*"off-line") state=128; break;;
esac
done
elif [ -f /sys/class/power_supply/*/online ]; then
cat /sys/class/power_supply/*/online | while read line; do
[ "${line}" = 0 ] && state=128 && break;
done
elif [ -f /proc/pmu/info ]; then
cat /proc/pmu/info | while read line; do
case "$line" in
"AC Power"*": 0") state=128; break;;
esac
done
elif command -v envstat >/dev/null 2>&1; then
# NetBSD has envstat
envstat -d acpiacad0 2>/dev/null | while read line; do
case "$line" in
"connected:"*"OFF") state=128; break;;
esac
done
elif sysctl -q hw.acpi.acline >/dev/null 2>/dev/null; then
case $(sysctl -n hw.acpi.acline) in
0) state=1;;
*) state=0;;
esac
else
return 255
fi
return [ $state != 128 ]
}

# function: wait_ac_power
# parameter: {timeout} {AC power online device}
#
# wait until ac power goes online
wait_ac_power() {
local timecount=0
local timeout=${1:-0}
local check=0

while true; do
check_power_status
case $? in
0)
return 0
;;
1)
;;
255)
case "$BTRFS_AC_POWER_ACTION_ON_UNKNOWN_STATUS" in
assume_no_ac_power)
return 1
;;
assume_ac_power)
return 0
;;
*)
# Continue
;;
esac
;;
esac
# AC is not online
[ $timeout -gt 0 ] && [ $timecount -ge $timeout ] && return 1
sleep 1s
timecount=$((timecount+1))
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If my math is correct, this will wait the 30 times more than the config value.

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It was 1s but i changed just before to commit ("1s is too short" I said).

done

return 0
}
50 changes: 50 additions & 0 deletions sysconfig.btrfsmaintenance
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Expand Up @@ -6,6 +6,27 @@
# 'btrfs-scrub' etc.
BTRFS_LOG_OUTPUT="stdout"

## Path: System/File systems/btrfs
## Type: number
## Default: 3600
#
# Second to wait the AC Power before to continue anyway
BTRFS_AC_POWER_TIMEOUT=3600

## Path: System/File systems/btrfs
## Type: string(retry,assume_no_ac_power,assume_ac_power)
## Default: "retry"
#
# Default action when ac power status is unknown
BTRFS_AC_POWER_ACTION_ON_UNKNOWN_STATUS="retry"

## Path: System/File systems/btrfs
## Type: string(continue,abort)
## Default: "abort"
#
# Default action when ac power status is unknown
BTRFS_AC_POWER_ACTION_ON_NO_AC_POWER="abort"

## Path: System/File systems/btrfs
## Type: string
## Default: ""
Expand All @@ -31,6 +52,14 @@ BTRFS_DEFRAG_PERIOD="none"
# Minimal file size to consider for defragmentation
BTRFS_DEFRAG_MIN_SIZE="+1M"

## Path: System/File systems/btrfs
## Type: boolean
## Default: "false"
#
# Wait AC Power before defrag
BTRFS_DEFRAG_WAIT_AC_POWER="false"


## Path: System/File systems/btrfs
## Type: string
## Default: "/"
Expand Down Expand Up @@ -72,6 +101,13 @@ BTRFS_BALANCE_DUSAGE="1 5 10 20 30 40 50"
# this will increase IO load on the system.
BTRFS_BALANCE_MUSAGE="1 5 10 20 30"

## Path: System/File systems/btrfs
## Type: boolean
## Default: "false"
#
# Wait AC Power before balance
BTRFS_BALANCE_WAIT_AC_POWER="false"

## Path: System/File systems/btrfs
## Type: string
## Default: "/"
Expand Down Expand Up @@ -104,6 +140,13 @@ BTRFS_SCRUB_PRIORITY="idle"
# Do read-only scrub and don't try to repair anything.
BTRFS_SCRUB_READ_ONLY="false"

## Path: System/File systems/btrfs
## Type: boolean
## Default: "false"
#
# Wait AC Power before scrub
BTRFS_SCRUB_WAIT_AC_POWER="false"

## Path: System/File systems/btrfs
## Description: Configuration for periodic fstrim
## Type: string(none,daily,weekly,monthly)
Expand All @@ -124,3 +167,10 @@ BTRFS_TRIM_PERIOD="none"
# (Colon separated paths)
# The special word/mountpoint "auto" will evaluate all mounted btrfs filesystems at runtime
BTRFS_TRIM_MOUNTPOINTS="/"

## Path: System/File systems/btrfs
## Type: boolean
## Default: "false"
#
# Wait AC Power before trim
BTRFS_TRIM_WAIT_AC_POWER="false"