pd.if.org Git - liblfds/blob - liblfds/liblfds7.1.0/liblfds710/src/lfds710_prng/lfds710_prng_init.c

   1 /***** includes *****/
   2 #include "lfds710_prng_internal.h"
   3
   4
   5
   6
   7
   8 /****************************************************************************/
   9 void lfds710_prng_init_valid_on_current_logical_core( struct lfds710_prng_state *ps, lfds710_pal_uint_t seed )
  10 {
  11   LFDS710_PAL_ASSERT( ps != NULL );
  12   LFDS710_PAL_ASSERT( (lfds710_pal_uint_t) &ps->entropy % LFDS710_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  13   // TRD : seed can be any value in its range (unlike for the mixing function)
  14
  15   LFDS710_PRNG_ST_MIXING_FUNCTION( seed );
  16
  17   ps->entropy = seed;
  18
  19   LFDS710_MISC_BARRIER_STORE;
  20
  21   lfds710_misc_force_store();
  22
  23   return;
  24 }
  25
  26
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  28
  29
  30 /****************************************************************************/
  31 void lfds710_prng_st_init( struct lfds710_prng_st_state *psts, lfds710_pal_uint_t seed )
  32 {
  33   LFDS710_PAL_ASSERT( psts != NULL );
  34   LFDS710_PAL_ASSERT( seed != 0 );
  35
  36   LFDS710_PRNG_ST_MIXING_FUNCTION( seed );
  37
  38   psts->entropy = seed;
  39
  40   return;
  41 }
  42