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Handle uninterruptible sleep state processes

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deajan 2016-08-15 10:15:05 +02:00
parent f0f22e0afa
commit 357f4a1b71
1 changed files with 35 additions and 8 deletions
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43
dev/ofunctions.sh
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@ -1,11 +1,8 @@
#### MINIMAL-FUNCTION-SET BEGIN ####
## FUNC_BUILD=2016080806
## FUNC_BUILD=2016081501
## BEGIN Generic functions for osync & obackup written in 2013-2016 by Orsiris de Jong - http://www.netpower.fr - ozy@netpower.fr
#TODO: set _LOGGER_PREFIX in other apps, specially for osync daemon mode
#TODO: set _LOGGER_STDERR in other apps
## type -p does not work on platforms other than linux (bash). If if does not work, always assume output is not a zero exitcode
if ! type "$BASH" > /dev/null; then
echo "Please run this script only with bash shell. Tested on bash >= 3.2"
@ -569,6 +566,9 @@ function joinString {
local IFS="$1"; shift; echo "$*";
}
# Time control function for background processes, suitable for multiple synchronous processes
# Fills a global variable called WAIT_FOR_TASK_COMPLETION that contains list of failed pids in format pid1:result1;pid2:result2
# Warning: Don't imbricate this function into another run if you plan to use the global variable output
function WaitForTaskCompletion {
local pids="${1}" # pids to wait for, separated by semi-colon
local soft_max_time="${2}" # If program with pid $pid takes longer than $soft_max_time seconds, will log a warning, unless $soft_max_time equals 0.
@ -590,21 +590,36 @@ function WaitForTaskCompletion {
local errorcount=0 # Number of pids that finished with errors
local pidCount # number of given pids
local pidState # State of the process
IFS=';' read -a pidsArray <<< "$pids"
pidCount=${#pidsArray[@]}
WAIT_FOR_TASK_COMPLETION=""
#TODO: need to find a way to properly handle processes in unterruptible sleep state
while [ ${#pidsArray[@]} -gt 0 ]; do
newPidsArray=()
for pid in "${pidsArray[@]}"; do
if kill -0 $pid > /dev/null 2>&1; then
newPidsArray+=($pid)
# Handle uninterruptible sleep state or zombies by ommiting them from running process array
#TODO(high): have this tested on *BSD, Mac & Win
pidState=$(ps -p$pid -o state=)
if [ "$pidState" != "D" ] && [ "$pidState" != "Z" ]; then
newPidsArray+=($pid)
fi
else
wait $pid
result=$?
if [ $result -ne 0 ]; then
errorcount=$((errorcount+1))
Logger "${FUNCNAME[0]} called by [$caller_name] finished monitoring [$pid] with exitcode [$result]." "DEBUG"
if [ "$WAIT_FOR_TASK_COMPLETION" == "" ]; then
WAIT_FOR_TASK_COMPLETION="$pid:$result"
else
WAIT_FOR_TASK_COMPLETION=";$pid:$result"
fi
fi
fi
done
@ -1148,7 +1163,6 @@ function PreInit {
## Set rsync default arguments
RSYNC_ARGS="-rltD"
RSYNC_ATTR_ARGS="-pgo"
if [ "$_DRYRUN" -eq 1 ]; then
RSYNC_DRY_ARG="-n"
DRY_WARNING="/!\ DRY RUN"
@ -1156,6 +1170,16 @@ function PreInit {
RSYNC_DRY_ARG=""
fi
RSYNC_ATTR_ARGS=""
if [ "$PRESERVE_PERMISSIONS" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -p"
fi
if [ "$PRESERVE_OWNER" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -o"
fi
if [ "$PRESERVE_GROUP" != "no" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -g"
fi
if [ "$PRESERVE_ACL" == "yes" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -A"
fi
@ -1258,9 +1282,12 @@ function InitLocalOSSettings {
function InitRemoteOSSettings {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
#TODO: fix add -E when both initiator and targets don't run MacOSX and PRESERVE_EXECUTABILITY=yes
## MacOSX does not use the -E parameter like Linux or BSD does (-E is mapped to extended attrs instead of preserve executability)
if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -E"
if [ "$PRESERVE_EXECUTABILITY" != "no" ];then
if [ "$LOCAL_OS" != "MacOSX" ] && [ "$REMOTE_OS" != "MacOSX" ]; then
RSYNC_ATTR_ARGS=$RSYNC_ATTR_ARGS" -E"
fi
fi
if [ "$REMOTE_OS" == "msys" ]; then