#
# BUG#45214
# The common part of the "rpl_get_master_version_and_clock" test. 
# Restart slave under network disconnection between slave and master
# following the steps:
#    0 - Set DEBUG_SYNC_ACTION to wait 
#        before call mysql_real_query(...) function in get_master_version_and_clock(...)
#        function and hang here
#    1 - activate a sync-point through the $dbug_sync_point argument of the test
#    2 - shutdown master server for simulating network disconnection
#    3 - signal to the IO thread through $debug_sync_action to unhold from the sync-point
#    4 - check if the slave I/O thread tries to reconnect to master. 
#
# Note: make sure to initialize the $debug_sync_action and $dbug_sync_point
#       before calling the test script.
#
# Pattern of usage:
#
# The caller test supplies the DBUG_EXECUTE_IF name
#
#    let $dbug_sync_point = 'dbug_execute_if_name';
#
# as well as the action list for DEBUG_SYNC
#    
#    let $debug_sync_action= 'now signal signal_name';
#
# The $dbug_sync_point becomes the value of @@global.debug generating
# a newly started IO-slave thread's session value.
# Notice incremental operations to add and remove dbug_execute_if_name
# from the global variable allows propagation more dbug arguments
# out of mtr.
# The action list is to fire at proper time according to test logics
# (see pp 0-4 above).
#

connection slave;
if (`SELECT $debug_sync_action = ''`)
{
    --die Cannot continue. Please set value for debug_sync_action.
}

# Restart slave
--disable_warnings
stop slave;
source include/wait_for_slave_to_stop.inc;

eval SET @@global.debug= "+d,$dbug_sync_point";

start slave;
source include/wait_for_slave_to_start.inc;
--echo slave is going to hang in get_master_version_and_clock

connection master;
# Write file to make mysql-test-run.pl expect the "crash", but don't start
# it until it's told to
--write_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
wait
EOF

# Send shutdown to the connected server and give
# it 10 seconds to die before zapping it
shutdown_server 10;

connection slave;
--echo slave is unblocked

eval SET DEBUG_SYNC=$debug_sync_action;

# Show slave last IO errno
connection slave;
--echo Check network error happened here
# '2013' CR_SERVER_LOST 
# '2003' CR_CONN_HOST_ERROR 
# '2002' CR_CONNECTION_ERROR 
# '2006' CR_SERVER_GONE_ERROR 
# '1040' ER_CON_COUNT_ERROR 
# '1053' ER_SERVER_SHUTDOWN
let $slave_io_errno= 1040, 1053, 2002, 2003, 2006, 2013;
source include/wait_for_slave_io_error.inc;

# deactivate the sync point of get_master_version_and_clock()
# now to avoid restarting IO-thread to re-enter it.
# There will be a new IO thread forked out with its @@session.debug
# unset.
eval set @@global.debug = "-d,$dbug_sync_point";

# Write file to make mysql-test-run.pl start up the server again
--append_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
restart
EOF

connection master;
# Turn on reconnect
--enable_reconnect

# Call script that will poll the server waiting for it to be back online again
--source include/wait_until_connected_again.inc

# Turn off reconnect again
--disable_reconnect

connection slave;
source include/wait_for_slave_to_start.inc;