mem-pool.h

   1 #ifndef MEM_POOL_H
   2 #define MEM_POOL_H
   3
   4 struct mp_block {
   5         struct mp_block *next_block;
   6         char *next_free;
   7         char *end;
   8         uintmax_t space[FLEX_ARRAY]; /* more */
   9 };
  10
  11 struct mem_pool {
  12         struct mp_block *mp_block;
  13
  14         /*
  15          * The amount of available memory to grow the pool by.
  16          * This size does not include the overhead for the mp_block.
  17          */
  18         size_t block_alloc;
  19
  20         /* The total amount of memory allocated by the pool. */
  21         size_t pool_alloc;
  22 };
  23
  24 /*
  25  * Alloc memory from the mem_pool.
  26  */
  27 void *mem_pool_alloc(struct mem_pool *pool, size_t len);
  28
  29 /*
  30  * Allocate and zero memory from the memory pool.
  31  */
  32 void *mem_pool_calloc(struct mem_pool *pool, size_t count, size_t size);
  33
  34 #endif