#!/bin/sh

# Capture the exit signal, make sure it is the FIRST uncommented line.

trap "do_exit" SIGHUP SIGINT SIGQUIT SIGTERM

SUN_DIR="/home/xuzhenan/.sunpinyin"

SHM_USERDICT="/dev/shm/sunpinyin_userdict.sh0"

# Backup the userdict and restore all changes made by this script on exit.

do_exit() {

  cp -f "${SHM_USERDICT}" "${SUN_DIR}/userdict.real"

  rm -f "${SHM_USERDICT}"

  mv -f "${SUN_DIR}/userdict.real" "${SUN_DIR}/userdict"

  #notify-send 'Pinyin dict' 'done'

  exit

}

# Work around for abnormal quit.

if [ -e "${SUN_DIR}/userdict.real" ]

then

  rm -f "${SHM_USERDICT}"

  mv -f "${SUN_DIR}/userdict.real" "${SUN_DIR}/userdict"

fi

# Rename the real userdict, copy it to RAM and make a symblic link back.

# From now on the modification and query on userdict takes place in RAM.

mv -f "${SUN_DIR}/userdict" "${SUN_DIR}/userdict.real"

cp -f "${SUN_DIR}/userdict.real" "${SHM_USERDICT}"

ln -sf "${SHM_USERDICT}" "${SUN_DIR}/userdict"

# Automatically backup the userdict, make sure not losing the modification.

p_count=

while [ true ]

do

  p_count=$(($p_count+))

  sleep 

  if [ $p_count ==  ]

  then

     p_count=

     cp -f "${SHM_USERDICT}" "${SUN_DIR}/userdict.real"

  fi

  p_size_shm=$(ls -l "${SHM_USERDICT}" | awk '{print $5}')

  p_size_real_t=$(ls -l "${SUN_DIR}/userdict.real" | awk '{print $5}')

  p_size_real=$(($p_size_real_t+))

  if [ $p_size_shm -ge $p_size_real ]

  then

     cp -f "${SHM_USERDICT}" "${SUN_DIR}/userdict.real"

  fi

done

[Unit]

Description=Sunpinyin dict cache

[Service]

ExecStart=/home/xuzhenan/mysh/sunpinyin_speed_up

[Install]

WantedBy=multi-user.target