File: thread_id_overflow.test

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# test 32bit overflow with connection id
--source include/have_debug.inc


# Connect and disconnect once, to create a "hole" in connection ids
connect con1, localhost,root;
disconnect con1;

connect con2, localhost,root;
connection con2;

connection default;
let $max_id = `SELECT MAX(ID) FROM INFORMATION_SCHEMA.PROCESSLIST`;

SET @orig_debug=@@debug_dbug;
SET GLOBAL DEBUG_DBUG='+d,thread_id_overflow';

connect con3, localhost,root;
connection con3;
# next line gives UINT32_MAX -1;
SELECT CONNECTION_ID();

connection default;
SET GLOBAL DEBUG_DBUG=@orig_debug;

connect con4, localhost,root;
connection con4;
--replace_result $max_id max_id
eval select IF(connection_id() - $max_id = 1,'Good','Bad') as result;

disconnect con4;
disconnect con3;
disconnect con2;

connection default;