root/opal/util/alfg.h

INCLUDED FROM

   1 /*
   2  * Copyright (c) 2014      Mellanox Technologies, Inc.
   3  *                         All rights reserved.
   4  * Copyright (c) 2014      Cisco Systems, Inc.  All rights reserved.
   5  * Copyright (c) 2014-2015 Intel, Inc.  All rights reserved.
   6  * $COPYRIGHT$
   7  *
   8  * Additional copyrights may follow
   9  *
  10  * $HEADER$
  11  */
  12 
  13 #ifndef OPAL_ALFG_H
  14 #define OPAL_ALFG_H
  15 
  16 #include "opal_config.h"
  17 
  18 #include "opal_stdint.h"
  19 
  20 
  21 struct opal_rng_buff_t {
  22     uint32_t alfg[127];
  23     int tap1;
  24     int tap2;
  25 };
  26 typedef struct opal_rng_buff_t opal_rng_buff_t;
  27 
  28 
  29 /* NOTE: UNLIKE OTHER OPAL FUNCTIONS, THIS FUNCTION RETURNS A 1 IF
  30  * SUCCESSFUL INSTEAD OF OPAL_SUCCESS */
  31 OPAL_DECLSPEC int opal_srand(opal_rng_buff_t *buff, uint32_t seed);
  32 
  33 OPAL_DECLSPEC uint32_t opal_rand(opal_rng_buff_t *buff);
  34 
  35 OPAL_DECLSPEC int opal_random(void);
  36 
  37 #endif /* OPAL_ALFG_H */