pike.git/ src/ block_alloc.h

2002-11-24

2002-11-24 22:41:55 by Martin Stjernholm <mast@lysator.liu.se>

• db1aac9a1a50514b79a06d851e96fae4ceb9189e (42 lines) (+33/-9) ^{[ Show | Annotate ]}
  Branch: 7.9

Added macros to specify the block alloc sizes in pages instead. Made it
possible change the name of the data member in the hash table variants.

Rev: src/block_alloc.h:1.54
Rev: src/block_alloc_h.h:1.15

2:   || This file is part of Pike. For copyright information see COPYRIGHT.   || Pike is distributed under GPL, LGPL and MPL. See the file COPYING   || for more information. - || $Id: block_alloc.h,v 1.53 2002/11/24 20:31:23 mast Exp $ + || $Id: block_alloc.h,v 1.54 2002/11/24 22:41:55 mast Exp $   */      #undef PRE_INIT_BLOCK
16:   #undef COUNT_OTHER   #undef BLOCK_ALLOC_HSIZE_SHIFT   #undef MAX_EMPTY_BLOCKS + #undef BLOCK_ALLOC_FILL_PAGES + #undef PTR_HASH_ALLOC_FILL_PAGES + #undef PTR_HASH_ALLOC_FIXED_FILL_PAGES      #define PRE_INIT_BLOCK(X)   #define INIT_BLOCK(X)
38:   #define BA_INLINE   #endif    - /* Size of the members in the block struct below that doesn't contain -  * the payload data (i.e. that aren't x). This can be used in -  * BSIZE to make the block fit within a page. */ + #define BLOCK_ALLOC_FILL_PAGES(DATA, PAGES) \ +  BLOCK_ALLOC(DATA, \ +  ((PIKE_MALLOC_PAGE_SIZE * (PAGES)) \ +  - PIKE_MALLOC_OVERHEAD - BLOCK_HEADER_SIZE) / \ +  sizeof (struct DATA)) +  + #define PTR_HASH_ALLOC_FILL_PAGES(DATA, PAGES) \ +  PTR_HASH_ALLOC(DATA, \ +  ((PIKE_MALLOC_PAGE_SIZE * (PAGES)) \ +  - PIKE_MALLOC_OVERHEAD - BLOCK_HEADER_SIZE) / \ +  sizeof (struct DATA)) +  + #define PTR_HASH_ALLOC_FIXED_FILL_PAGES(DATA, PAGES) \ +  PTR_HASH_ALLOC_FIXED(DATA, \ +  ((PIKE_MALLOC_PAGE_SIZE * (PAGES)) \ +  - PIKE_MALLOC_OVERHEAD - BLOCK_HEADER_SIZE) / \ +  sizeof (struct DATA)) +  + /* Size of the members in the block struct below that don't contain +  * the payload data (i.e. that aren't x). This can be used in BSIZE to +  * make the block fit within a page. */ + #ifndef BLOCK_HEADER_SIZE   #define BLOCK_HEADER_SIZE (3 * sizeof (void *) + sizeof (INT32)) -  + #endif      #define BLOCK_ALLOC(DATA,BSIZE) \    \
325:   { \    struct DATA *p,**pp; \    p=PIKE_CONCAT(DATA,_hash_table)[hval]; \ -  if(!p || p->data == ptr) \ +  if(!p || p->PTR_HASH_ALLOC_DATA == ptr) \    { \    DO_IF_RUN_UNLOCKED(mt_unlock(&PIKE_CONCAT(DATA,_mutex))); \    return p; \    } \    while((p=*(pp=&p->BLOCK_ALLOC_NEXT))) \    { \ -  if(p->data==ptr) \ +  if(p->PTR_HASH_ALLOC_DATA==ptr) \    { \    *pp=p->BLOCK_ALLOC_NEXT; \    p->BLOCK_ALLOC_NEXT=PIKE_CONCAT(DATA,_hash_table)[hval]; \
473:    PIKE_CONCAT(num_,DATA)++; \    \    p=BA_UL(PIKE_CONCAT(alloc_,DATA))(); \ -  p->data=ptr; \ +  p->PTR_HASH_ALLOC_DATA=ptr; \    p->BLOCK_ALLOC_NEXT=PIKE_CONCAT(DATA,_hash_table)[hval]; \    PIKE_CONCAT(DATA,_hash_table)[hval]=p; \    return p; \
510:    while((p=old_hash[e])) \    { \    old_hash[e]=p->BLOCK_ALLOC_NEXT; \ -  hval=(size_t)(p->data); \ +  hval=(size_t)(p->PTR_HASH_ALLOC_DATA); \    hval%=PIKE_CONCAT(DATA,_hash_table_size); \    p->BLOCK_ALLOC_NEXT=PIKE_CONCAT(DATA,_hash_table)[hval]; \    PIKE_CONCAT(DATA,_hash_table)[hval]=p; \
540:    } \    \    p=BA_UL(PIKE_CONCAT(alloc_,DATA))(); \ -  p->data=ptr; \ +  p->PTR_HASH_ALLOC_DATA=ptr; \    p->BLOCK_ALLOC_NEXT=PIKE_CONCAT(DATA,_hash_table)[hval]; \    PIKE_CONCAT(DATA,_hash_table)[hval]=p; \    return p; \   }