stm.h

   1 #ifndef CBOX_STM_H
   2 #define CBOX_STM_H
   3
   4 #include <malloc.h>
   5 #include <string.h>
   6
   7 static inline void **stm_array_clone_insert(void **old_array, int old_count, int index, void *data)
   8 {
   9     size_t ps = sizeof(void *);
  10     if (index == -1)
  11         index = old_count;
  12     void **new_array = malloc(ps * (old_count + 1));
  13     memcpy(&new_array[0], &old_array[0], ps * index);
  14     new_array[index] = data;
  15     if (index != old_count)
  16         memcpy(&new_array[index + 1], &old_array[index], ps * (old_count - index));
  17     return new_array;
  18 }
  19
  20 static inline void **stm_array_clone_remove(void **old_array, int old_count, int index)
  21 {
  22     size_t ps = sizeof(void *);
  23     if (old_count == 1)
  24         return NULL;
  25     void **new_array = malloc(ps * (old_count - 1));
  26     memcpy(&new_array[0], &old_array[0], ps * index);
  27     memcpy(&new_array[index], &old_array[index + 1], ps * (old_count - index - 1));
  28     return new_array;
  29 }
  30
  31 #define STM_ARRAY_FREE(old_array, count, destructor) \
  32     for (int i = 0; i < (count); i++) \
  33         destructor((old_array)[i]); \
  34     free(old_array);
  35
  36 #define STM_ARRAY_FREE_OBJS(old_array, count) \
  37     do { \
  38         for (int i = 0; i < (count); i++) \
  39             cbox_object_destroy(&(old_array)[i]->_obj_hdr); \
  40         free(old_array); \
  41     } while(0)
  42
  43 #endif