77 *
88 *
99 * IDENTIFICATION
10- * $Header: /cvsroot/pgsql/src/backend/utils/adt/misc.c,v 1.12 1998/02/24 03:47:26 scrappy Exp $
10+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/misc.c,v 1.13 1998/06/09 19:20:59 momjian Exp $
1111 *
1212 *-------------------------------------------------------------------------
1313 */
1414#include <sys/types.h>
1515#include <sys/file.h>
16+ #include <time.h>
1617#include "postgres.h"
1718#include "utils/datum.h"
1819#include "catalog/pg_type.h"
@@ -60,6 +61,9 @@ nonnullvalue(Datum value, bool *isNull)
6061 * will return about 1/10 of the tuples in TEMP
6162 *
6263 */
64+
65+ static bool random_initialized = false;
66+
6367bool
6468oidrand (Oid o ,int32 X )
6569{
@@ -68,6 +72,17 @@ oidrand(Oid o, int32 X)
6872if (X == 0 )
6973return true;
7074
75+ /*
76+ *We do this because the cancel key is actually a random, so we don't
77+ *want them to be able to request random numbers using our postmaster
78+ *seeded value.
79+ */
80+ if (!random_initialized )
81+ {
82+ srandom ((unsignedint )time (NULL ));
83+ random_initialized = true;
84+ }
85+
7186result = (random () %X == 0 );
7287return result ;
7388}
8196oidsrand (int32 X )
8297{
8398srand (X );
99+ random_initialized = true;
84100return true;
85101}
86102