pd.if.org Git - liblfds/blob - liblfds/liblfds7.0.0/liblfds700/src/lfds700_ringbuffer/lfds700_ringbuffer_init.c

   1 /***** includes *****/
   2 #include "lfds700_ringbuffer_internal.h"
   3
   4
   5
   6
   7
   8 /****************************************************************************/
   9 void lfds700_ringbuffer_init_valid_on_current_logical_core( struct lfds700_ringbuffer_state *rs,
  10                                                             struct lfds700_ringbuffer_element *re_array_inc_dummy,
  11                                                             lfds700_pal_uint_t number_elements,
  12                                                             struct lfds700_misc_prng_state *ps,
  13                                                             void *user_state )
  14 {
  15   lfds700_pal_uint_t
  16     loop;
  17
  18   LFDS700_PAL_ASSERT( rs != NULL );
  19   LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &rs->fs % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  20   LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &rs->qs % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  21   LFDS700_PAL_ASSERT( re_array_inc_dummy != NULL );
  22   LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &re_array_inc_dummy[0].fe % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  23   LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &re_array_inc_dummy[0].qe % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  24   LFDS700_PAL_ASSERT( number_elements >= 2 );
  25   LFDS700_PAL_ASSERT( ps != NULL );
  26   // TRD : user_state can be NULL
  27
  28   rs->user_state = user_state;
  29
  30   re_array_inc_dummy[0].qe_use = &re_array_inc_dummy[0].qe;
  31
  32   lfds700_freelist_init_valid_on_current_logical_core( &rs->fs, rs );
  33   lfds700_queue_init_valid_on_current_logical_core( &rs->qs, &re_array_inc_dummy[0].qe, ps, rs );
  34
  35   for( loop = 1 ; loop < number_elements ; loop++ )
  36   {
  37     LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &re_array_inc_dummy[loop].fe % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  38     LFDS700_PAL_ASSERT( (lfds700_pal_uint_t) &re_array_inc_dummy[loop].qe % LFDS700_PAL_ATOMIC_ISOLATION_IN_BYTES == 0 );
  39
  40     re_array_inc_dummy[loop].qe_use = &re_array_inc_dummy[loop].qe;
  41     LFDS700_FREELIST_SET_VALUE_IN_ELEMENT( re_array_inc_dummy[loop].fe, &re_array_inc_dummy[loop] );
  42     lfds700_freelist_push( &rs->fs, &re_array_inc_dummy[loop].fe, ps );
  43   }
  44
  45   LFDS700_MISC_BARRIER_STORE;
  46
  47   lfds700_misc_force_store();
  48
  49   return;
  50 }
  51