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Moved rand initialization from mysqld.cc to sql_class.cc:THD::THD()

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nick@mysql.com
2002-10-17 14:57:01 -06:00
parent 562b17185a
commit 00d47646d5
2 changed files with 16 additions and 10 deletions
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14
sql/sql_class.cc
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@ -37,6 +37,8 @@
#include <mysys_err.h>
#include <assert.h>
extern struct rand_struct sql_rand;
/*****************************************************************************
** Instansiate templates
*****************************************************************************/
@ -158,6 +160,18 @@ THD::THD():user_time(0),fatal_error(0),last_insert_id_used(0),
transaction.trans_log.end_of_file= max_binlog_cache_size;
}
#endif
/*
We need good random number initialization for new thread
Just coping global one will not work
*/
{
pthread_mutex_lock(&LOCK_thread_count);
ulong tmp=(ulong) (rnd(&sql_rand) * 3000000);
randominit(&rand, tmp + (ulong) start_time,
tmp + (ulong) thread_id);
pthread_mutex_unlock(&LOCK_thread_count);
}
}
/* Do operations that may take a long time */