diff options
Diffstat (limited to 'include/my_alloc.h')
| -rw-r--r-- | include/my_alloc.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/include/my_alloc.h b/include/my_alloc.h index 0857c8886c5..60d0d4f4b6d 100644 --- a/include/my_alloc.h +++ b/include/my_alloc.h @@ -18,18 +18,23 @@ Data structures for mysys/my_alloc.c (root memory allocator) */ -#ifndef ST_USED_MEM_DEFINED -#define ST_USED_MEM_DEFINED -typedef struct st_used_mem { /* struct for once_alloc (block) */ +#ifndef _my_alloc_h +#define _my_alloc_h + +typedef struct st_used_mem +{ /* struct for once_alloc (block) */ struct st_used_mem *next; /* Next block in use */ unsigned int left; /* memory left in block */ unsigned int size; /* size of block */ } USED_MEM; -typedef struct st_mem_root { + + +typedef struct st_mem_root +{ USED_MEM *free; /* blocks with free memory in it */ USED_MEM *used; /* blocks almost without free memory */ USED_MEM *pre_alloc; /* preallocated block */ - /* if block have less memory it will be put in 'used' list*/ + /* if block have less memory it will be put in 'used' list */ unsigned int min_malloc; unsigned int block_size; /* initial block size */ unsigned int block_num; /* allocated blocks counter */ |