pd.if.org Git - liblfds/blob - liblfds/liblfds7.1.0/test_and_benchmark/libshared/src/libshared_memory/libshared_memory_query.c

   1 /***** includes *****/
   2 #include "libshared_memory_internal.h"
   3
   4
   5
   6
   7
   8 /****************************************************************************/
   9 #pragma warning( disable : 4100 )
  10
  11 void libshared_memory_query( struct libshared_memory_state *ms, enum libshared_memory_query query_type, void *query_input, void *query_output )
  12 {
  13   LFDS710_PAL_ASSERT( ms != NULL );
  14   // TRD : query_type can be any value in its range
  15
  16   LFDS710_MISC_BARRIER_LOAD;
  17
  18   switch( query_type )
  19   {
  20     case LIBSHARED_MEMORY_QUERY_GET_AVAILABLE:
  21     {
  22       lfds710_pal_uint_t
  23         available_bytes = 0;
  24
  25       struct lfds710_list_asu_element
  26         *lasue = NULL;
  27
  28       struct libshared_memory_element
  29         *me;
  30
  31       LFDS710_PAL_ASSERT( query_input == NULL );
  32       LFDS710_PAL_ASSERT( query_output != NULL );
  33
  34       while( LFDS710_LIST_ASU_GET_START_AND_THEN_NEXT(ms->list_of_allocations,lasue) )
  35       {
  36         me = LFDS710_LIST_ASU_GET_VALUE_FROM_ELEMENT( *lasue );
  37         available_bytes += me->current_memory_size_in_bytes;
  38       }
  39
  40       *(lfds710_pal_uint_t *) query_output = available_bytes;
  41     }
  42     break;
  43   }
  44
  45   return;
  46 }
  47
  48 #pragma warning( default : 4100 )
  49