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#! /bin/bash
#
# Copyright (C) 2015 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
set -o nounset
JACK_NB_COMPILE=4
JACK_TIMEOUT=15
TMPDIR="/tmp"
JACK_PRG="java -cp /usr/local/google/home/jplesot/Android/ub-jack/toolchain/jack/jack/dist/jack.jar com.android.jack.server.Server"
JACK_FIFO="$TMPDIR/jack-$USER.cmd"
JACK_LOCK="$TMPDIR/jack-$USER.lock"
JACK_LOG="$TMPDIR/jack-$USER.log"
JACK_DIR="$TMPDIR/jack-$USER-$$/"
JACK_OUT="$JACK_DIR/out"
JACK_ERR="$JACK_DIR/err"
JACK_EXIT="$JACK_DIR/exit"
JACK_CLI="$JACK_DIR/cli"
JACK_PWD="$PWD"
#
# Always create the FIFO
#
mkfifo -m 0000 $JACK_FIFO 2>/dev/null
#
# Prepare
#
# Cleanup
trap "rm -f $JACK_OUT $JACK_ERR $JACK_EXIT $JACK_CLI $JACK_LOCK 2>/dev/null; rmdir $JACK_DIR 2>/dev/null" exit
# Create fifo for a task
mkdir $JACK_DIR
mkfifo $JACK_OUT
mkfifo $JACK_ERR
mkfifo $JACK_EXIT
# Redirect output and error
cat <$JACK_OUT >&1 &
PID_OUT=$!
cat <$JACK_ERR >&2 &
PID_ERR=$!
echo \"$PWD\" $* >$JACK_CLI
#
# Launch compilation
#
# Try sending a command
CMD="+ $JACK_OUT $JACK_ERR $JACK_EXIT $JACK_CLI"
( echo $CMD >>$JACK_FIFO ) 2>/dev/null
while [ $? -ne 0 ]; do
# If not possible, launch the server one time only
mkfifo $JACK_LOCK 2>/dev/null
if [ $? -eq 0 ]; then
echo "Launch background server" $JACK_PRG
nohup $JACK_PRG $JACK_NB_COMPILE $JACK_TIMEOUT $JACK_FIFO >$JACK_LOG 2>&1 &
fi
# Slow down, and retry sending the command
sleep 1
( echo $CMD >>$JACK_FIFO ) 2>/dev/null
done
wait $PID_OUT
wait $PID_ERR
exit `cat $JACK_EXIT`
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