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Merge pull request #3447 from MilhouseVH/le10_mt_update2

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config/functions: eliminate unecessary dashboard flock()
This commit is contained in:
Jernej Škrabec 2019-04-25 18:54:51 +02:00 committed by GitHub
commit 45899b43fa
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 54 additions and 58 deletions
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42
config/functions
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@ -1245,21 +1245,20 @@ pkg_lock() {
local pkg="$1" task="$2" parent_pkg="$3"
local this_job="${MTJOBID}"
local lock_job lock_seq lock_task lock_pkg
local lock_job lock_seq lock_task lock_pkg locked=no
local fail_seq
exec 98>"${THREAD_CONTROL}/locks/${pkg}.${task}"
if ! flock --nonblock --exclusive 98; then
while [ : ]; do
read -r lock_job lock_seq lock_task lock_pkg <<<$(cat "${THREAD_CONTROL}/locks/${pkg}.${task}.owner" 2>/dev/null)
[ -n "${lock_job}" ] && break || sleep 1
[ -n "${lock_job}" ] && break
flock --wait 1 --exclusive 98 && locked=yes && break
done
if [ "${lock_job}/${lock_seq}" != "${this_job}/${PARALLEL_SEQ}" ]; then
if [ "${locked}" = "no" -a "${lock_job}/${lock_seq}" != "${this_job}/${PARALLEL_SEQ}" ]; then
pkg_lock_status "STALLED" "${parent_pkg}" "${task}" "$(printf "waiting on [%02d] %s %s" ${lock_job} "${lock_task}" "${lock_pkg}")"
flock --exclusive 98
fi
fi
# As we now have the lock, if .failed still exists then a previous process must have failed
if [ -f "${THREAD_CONTROL}/locks/${pkg}.${task}.failed" ]; then
@ -1295,14 +1294,17 @@ pkg_lock_status() {
[ -n "${msg}" ] && line+=" (${msg})"
echo "${line}" >>"${THREAD_CONTROL}/history"
) 94>"${THREAD_CONTROL}/locks/.history"
[ "${DASHBOARD}" != "no" ] && update_dashboard "${status}" "${pkg}" "${task}" "${msg}"
if [ "${DASHBOARD}" != "no" ]; then
update_dashboard "${status}" "${pkg}" "${task}" "${msg}"
fi
) 94>"${THREAD_CONTROL}/locks/.history"
if [ "${status}" = "LOCKED" ]; then
echo "${PARALLEL_SEQ}" > "${THREAD_CONTROL}/locks/${pkg}.${task}.failed"
echo "${this_job} ${PARALLEL_SEQ} ${task} ${pkg}" >"${THREAD_CONTROL}/locks/${pkg}.${task}.owner"
elif [ "${status}" = "UNLOCK" ]; then
rm "${THREAD_CONTROL}/locks/${pkg}.${task}.owner"
rm "${THREAD_CONTROL}/locks/${pkg}.${task}.failed"
fi
@ -1310,14 +1312,13 @@ pkg_lock_status() {
}
update_dashboard() {
[ "${MTWITHLOCKS}" != "yes" ] && return 0
local status="$1" pkg="$2" task="$3" msg="$4"
local line sedline preamble num elapsed projdevarch
local boldred boldgreen boldyellow endcolor
(
flock --exclusive 97
[ -n "${MTJOBID}" ] && sedline=$((MTJOBID + 2)) || sedline=1
sedline=$((MTJOBID + 2))
num=$(cat "${THREAD_CONTROL}/status" | wc -l)
while [ ${num} -lt ${sedline} ]; do echo "" >>"${THREAD_CONTROL}/status"; num=$((num + 1)); done
@ -1330,10 +1331,6 @@ update_dashboard() {
printf -v preamble "%s Dashboard (%s) - %d of %d jobs completed, %s elapsed" "${DISTRONAME}" "${projdevarch}" ${num} ${MTMAXJOBS} "${elapsed}"
printf -v preamble "%b%-105s %s" "\e[2J\e[0;0H" "${preamble//\//\\/}" "$(date "+%Y-%m-%d %H:%M:%S")"
# Only update the header when caller is not a worker thread
if [ -z "${MTJOBID}" ]; then
sed -e "1s/.*/${preamble}/" -i "${THREAD_CONTROL}/status"
else
if [ "${DISABLE_COLORS}" != "yes" ]; then
boldred="\e[1;31m"
boldgreen="\e[1;32m"
@ -1352,9 +1349,8 @@ update_dashboard() {
printf -v line "[%02d\/%0*d] %b%-7s%b %-7s %-35s" ${MTJOBID} ${#MTMAXJOBS} ${PARALLEL_SEQ:-0} "${color}" "${status//\//\\/}" "${endcolor}" "${task}" "${pkg}"
[ -n "${msg}" ] && line+=" ${msg//\//\\/}"
sed -e "1s/.*/${preamble}/;${sedline}s/.*/${line}/" -i "${THREAD_CONTROL}/status"
fi
) 97>"${THREAD_CONTROL}/locks/.status"
}
# Thread concurrency helpers to avoid concurrency issues with some code,
@ -1365,20 +1361,19 @@ acquire_exclusive_lock() {
local pkg="$1" task="$2" lockfile="${3:-global}"
local this_job="${MTJOBID}"
local lock_job lock_seq lock_task lock_pkg
local lock_job lock_seq lock_task lock_pkg locked=no
exec 96>"${THREAD_CONTROL}/locks/.mutex.${lockfile}"
if ! flock --nonblock --exclusive 96; then
while [ : ]; do
read -r lock_job lock_seq lock_task lock_pkg <<<$(cat "${THREAD_CONTROL}/locks/.mutex.${lockfile}.owner" 2>/dev/null)
[ -n "${lock_job}" ] && break || sleep 1
[ -n "${lock_job}" ] && break
flock --wait 1 --exclusive 96 && locked=yes && break
done
if [ "${lock_job}/${lock_seq}" != "${this_job}/${PARALLEL_SEQ}" ]; then
if [ "${locked}" = "no" -a "${lock_job}/${lock_seq}" != "${this_job}/${PARALLEL_SEQ}" ]; then
pkg_lock_status "MUTEX/W" "${pkg}" "${task}" "$(printf "mutex: %s; waiting on [%02d] %s %s" "${lockfile}" ${lock_job} "${lock_task}" "${lock_pkg}")"
flock --exclusive 96
fi
fi
pkg_lock_status "MUTEX" "${pkg}" "${task}" "mutex: ${lockfile}"
@ -1388,10 +1383,11 @@ acquire_exclusive_lock() {
release_exclusive_lock() {
[ "${MTWITHLOCKS}" != "yes" ] && return 0
local pkg="$1" task="$2"
local pkg="$1" task="$2" lockfile="${3:-global}"
pkg_lock_status "ACTIVE" "${pkg}" "${task}"
rm "${THREAD_CONTROL}/locks/.mutex.${lockfile}.owner"
flock --unlock 96 2>/dev/null
}