-#
-#function handle_exit
-#{
-# rm mem_use 2>>/dev/null
-# killall -s SIGCONT make
-# killall make
-# killall cc1plus
-# echo "Terminated, exiting..."
-# echo
-# echo
-# exit
-#}
-#
-#trap handle_exit SIGINT
-#available_mem=$(cat /proc/meminfo | grep MemTotal | grep -o [0-9]*)
-#if [ -a "memory_exhausted_lock" ]
-#then
-# echo "Running in memory conservation mode..."
-# max_cpp_process_mem_use=1600000
-# cpus=$(( $available_mem / $max_cpp_process_mem_use ))
-# echo "Using $cpus cpu(s) should be safe..."
-# sleep 1
-# make -j${cpus}
-#else #use all the available computing power by default
-# cpus=$(( $(cat /proc/cpuinfo | grep -c ^processor) + 0 ))
-#fi
-#
-#nice -n12 ionice -c3 make -j ${cpus} $@ &
-#make_pid=$(jobs -p %nice)
-#
-##watch memory use to avoid crashes
-#while ps $make_pid >>/dev/null
-#do
-# if [ x"$(ps aux | grep cc1plus | grep -v grep | wc -l)" != x0 ]
-# then
-# ps ax -o vsize,comm | grep cc1plus | grep -o "\<[0-9]*\>" > mem_use
-# used_mem=$(awk 'BEGIN {sum=0;} {sum+=$1;} END {print sum;}' mem_use)
-# if (( "$used_mem"> ($available_mem - 300) ))
-# then
-# touch memory_exhausted_lock
-# echo "Stopping due to exagerated memory use ( $used_mem )"
-# handle_exit
-# elif (( "$used_mem"> ($available_mem/2) ))
-# then
-# if [ x$high_mem != xtrue ]
-# then
-# echo "Warning, high memory use, not spawning any more compilation jobs... ( $used_mem )"
-# killall -s SIGSTOP make
-# killall -s SIGCONT cc1plus
-# high_mem="true"
-# date_mem=$(date +%s)
-# fi
-# echo mem $used_mem / $available_mem
-# elif [ x$high_mem = xtrue ] && (( $(date +%s) > ( $date_mem + 5 ) ))
-# then
-# echo "Memory use back to normal"
-# high_mem=""
-# killall -s SIGCONT make
-# fi
-# rm mem_use
-# fi
-# sleep 1
-#done
-#rm memory_exhausted_lock 2>>/dev/null
-#echo Done!
-#echo
+function handle_exit
+{
+ rm mem_use 2>>/dev/null
+ #kill -s SIGCONT ${make_pid} $(get_descendance ${make_pid})
+ #sleep 1
+ kill -9 $(get_descendance ${make_pid})
+ kill -9 ${make_pid}
+ echo "Terminated, exiting..."
+ sleep 1
+ echo
+ echo
+ exit
+}
+
+function get_descendance
+{
+ children=$(ps --ppid $1 -o pid --no-headers)
+ local desc=""
+ for c in $children
+ do
+ desc="${desc} ${c} $(get_descendance $c)"
+ done
+ echo $desc
+}
+
+trap handle_exit SIGINT
+available_mem=$(cat /proc/meminfo | grep MemTotal | grep -o [0-9]*)
+if [ -a "memory_exhausted_lock" ]
+then
+ echo "Running in memory conservation mode..."
+ max_cpp_process_mem_use=1600000
+ cpus=$(( $available_mem / $max_cpp_process_mem_use ))
+ echo "Using $cpus cpu(s) should be safe..."
+ sleep 1
+ make -j${cpus}
+else #use all the available computing power by default
+ cpus=$(( $(cat /proc/cpuinfo | grep -c ^processor) + 0 ))
+ echo "Building with ${cpus} cpus..."
+fi
+
+nice -n12 ionice -c3 make -j ${cpus} $@ &
+make_pid=$(jobs -p %nice)
+
+#watch memory use to avoid crashes
+while ps $make_pid >>/dev/null
+do
+ descendance=$(get_descendance ${make_pid})
+ #echo ${make_pid} $descendance
+ ps -o vsize --no-headers ${make_pid} ${descendance} > mem_use
+ used_mem=$(awk 'BEGIN {sum=0;} {sum+=$1;} END {print sum;}' mem_use)
+ if (( "$used_mem"> ($available_mem - 300) ))
+ then
+ touch memory_exhausted_lock
+ echo "Stopping due to exagerated memory use ( $used_mem )"
+ handle_exit
+ elif (( "$used_mem"> ($available_mem/2) ))
+ then
+ if [ x$high_mem != xtrue ]
+ then
+ echo "Warning, high memory use, not spawning any more compilation jobs... ( $used_mem )"
+ #Stop all make commands
+ for pid in ${make_pid} ${descendance}
+ do
+ (ps --no-headers -o command ${pid} | grep make &>/dev/null) && kill -s SIGSTOP ${pid}
+ done
+ high_mem="true"
+ date_mem=$(date +%s)
+ fi
+ echo mem $used_mem / $available_mem
+ elif [ x$high_mem = xtrue ] && (( $(date +%s) > ( $date_mem + 5 ) ))
+ then
+ echo "Memory use back to normal"
+ high_mem=""
+ #Restart all make commands
+ for pid in ${make_pid} ${descendance}
+ do
+ (ps --no-headers -o command ${pid} | grep make &>/dev/null) && kill -s SIGCONT ${pid}
+ done
+ fi
+ rm mem_use
+ sleep 1
+done
+rm memory_exhausted_lock 2>>/dev/null
+echo Waiting for remaining jobs...
+wait
+echo Done!
+echo