#!/bin/sh
#
# Copyright (c) 2006 MySQL AB
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

echo "######################################################################"
echo "#"
echo "# Test Bug#18775 - Temporary table from alter table visible to other threads"
echo "#"

#######################################################################
#
# Settings. CAUTION: Paths are not space safe.
#

# BASEDIR="install directory"
# DATADIR="databases directory e.g. $BASEDIR/var"
DATADIR="${DATADIR:-$BASEDIR/var}"
TREEROOT="${TREEROOT:-$HOME}"

MYSQLD="$BASEDIR/libexec/mysqld"
MYSQLC="$BASEDIR/bin/mysql"
MYSQLA="$BASEDIR/bin/mysqladmin"
MYSQLT="$BASEDIR/bin/mysqltest"

PORT_1="${MYSQL_TCP_PORT:+--port=$MYSQL_TCP_PORT}"
SOCK_1="${MYSQL_UNIX_PORT:+--socket=$MYSQL_UNIX_PORT}"
USER_1="-u root -D test"
#CLNT_1="-A -v -f"
CLNT_1="-A"
DATA_1="--basedir=$BASEDIR --datadir=$DATADIR"
SERV_1="--log-error --core"
#SERV_1="$SERV_1 --skip-concurrent-insert"
DBUG_1=
#DBUG_1="--debug=d,query,enter:i:O,$DATADIR/mysqld.trace"
#DBUG_1="--debug=d,thrlock:i:O,$DATADIR/mysqld.trace"
#DBUG_1="--debug=t:d,query,send_data:i:O,$DATADIR/mysqld.trace"
#DBUG_1="--debug=t:d:i:O,$DATADIR/mysqld.trace"
DDD=
#DDD=1

HOSTNAM="`expr \`uname -n\` : '\([^\.]*\)'`"
ERRFILE="$HOSTNAM.err"
PIDFILE="$HOSTNAM.pid"

cd $DATADIR || exit $?
rm -f *.trace *.err *.pid core* test/#sql* bug18775*

#######################################################################
#
# Functions.

sleep_until_file_created ()
{
  file=$1
  loop=$2
  org_time=$2
  while (test $loop -gt 0)
  do
    if [ -r $file ]
    then
      return 0
    fi
    sleep 1
    loop=`expr $loop - 1`
  done
  echo "ERROR: $file was not created in $org_time seconds;  Aborting"
  exit 1;
}

sleep_until_file_deleted ()
{
  pid=$1;
  file=$2
  loop=$3
  while (test $loop -gt 0)
  do
    if [ ! -r $file ]
    then
      if test $pid != "0"
      then
        wait_for_pid $pid
      fi
      return
    fi
    sleep 1
    loop=`expr $loop - 1`
  done
}

echo
echo "######################################################################"
echo "#"
echo "# Starting database server in non-debug mode."
"$MYSQLD" $PORT_1 $SOCK_1 $DATA_1 $SERV_1 &
SERV_1_PID=$!
echo "Process_id $SERV_1_PID"
echo
sleep_until_file_created "$PIDFILE" 400


echo "######################################################################"
echo "#"
echo "# Creating table."
"$MYSQLC" $PORT_1 $SOCK_1 $USER_1 $CLNT_1 <<EOF 2>&1

    DROP TABLE IF EXISTS t1;
    CREATE TABLE t1 (
        c1 int
        ) ENGINE=MyISAM;

    INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;
    INSERT INTO t1 SELECT * FROM t1;

EOF
echo
sleep 2


echo "######################################################################"
echo "#"
echo "# Stopping database server."
"$MYSQLA" $PORT_1 $SOCK_1 -u root shutdown
sleep_until_file_deleted 0 "$PIDFILE" 60


echo
echo "######################################################################"
echo "#"
echo "# Starting database server."
if [ -z "$DDD" ]
then
    "$MYSQLD" $PORT_1 $SOCK_1 $DATA_1 $SERV_1 $DBUG_1 &
else
    echo "set args $PORT_1 $SOCK_1 $DATA_1 $SERV_1 $DBUG_1" > bug18775-1.gdb
    ddd --debugger "gdb -x bug18775-1.gdb" "$MYSQLD" &
fi
SERV_1_PID=$!
echo "Process_id $SERV_1_PID"
echo
sleep_until_file_created "$PIDFILE" 400


echo "######################################################################"
echo "#"
echo "# Starting client 1 (alter table)."
    "$MYSQLC" $PORT_1 $SOCK_1 $USER_1 $CLNT_1 <<EOF 2>&1 &
    ALTER TABLE t1 ENGINE=MyISAM;
EOF
CLNT_1_PID=$!
echo "Process_id $CLNT_1_PID"
echo
sleep 1

echo "######################################################################"
echo "#"
echo "# Starting client 2 (show tables)."
    "$MYSQLC" $PORT_1 $SOCK_1 $USER_1 $CLNT_1 <<EOF 2>&1 &
    SHOW TABLES;
EOF
CLNT_2_PID=$!
echo "Process_id $CLNT_2_PID"
echo
sleep 1

echo "######################################################################"
echo "#"
echo "# Waiting for completion..."
exec 6>&2 2>/dev/null
while kill -0 $CLNT_1_PID && \
      kill -0 $CLNT_2_PID
do
    sleep 1
done
kill $CLNT_1_PID
kill $CLNT_2_PID
echo
exec 2>&6


echo "######################################################################"
echo "#"
echo "# Stopping database server."
"$MYSQLA" $PORT_1 $SOCK_1 -u root shutdown
sleep_until_file_deleted 0 "$PIDFILE" 60


echo "# End of Test."
echo "#"
echo "######################################################################"