pike.git / src / block_alloc.h

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pike.git/src/block_alloc.h:1: + #define INIT_BLOCK(X) + #define EXIT_BLOCK(X) + #define BLOCK_ALLOC(DATA,BSIZE) \ +  \ + struct PIKE_CONCAT(DATA,_block) \ + { \ +  struct PIKE_CONCAT(DATA,_block) *next; \ +  struct DATA x[BSIZE]; \ + }; \ +  \ + static struct PIKE_CONCAT(DATA,_block) *PIKE_CONCAT(DATA,_blocks)=0; \ + static struct DATA *PIKE_CONCAT3(free_,DATA,s)=0; \ +  \ + struct DATA *PIKE_CONCAT(alloc_,DATA)(void) \ + { \ +  struct DATA *tmp; \ +  if(!PIKE_CONCAT3(free_,DATA,s)) \ +  { \ +  struct PIKE_CONCAT(DATA,_block) *n; \ +  int e; \ +  n=(struct PIKE_CONCAT(DATA,_block) *)malloc(sizeof(struct PIKE_CONCAT(DATA,_block))); \ +  if(!n) \ +  { \ +  fprintf(stderr,"Fatal: out of memory.\n"); \ +  exit(17); \ +  } \ +  n->next=PIKE_CONCAT(DATA,_blocks); \ +  PIKE_CONCAT(DATA,_blocks)=n; \ +  \ +  for(e=0;e<BSIZE;e++) \ +  { \ +  n->x[e].next=PIKE_CONCAT3(free_,DATA,s); \ +  PIKE_CONCAT3(free_,DATA,s)=n->x+e; \ +  } \ +  } \ +  \ +  tmp=PIKE_CONCAT3(free_,DATA,s); \ +  PIKE_CONCAT3(free_,DATA,s)=tmp->next; \ +  INIT_BLOCK(tmp); \ +  return tmp; \ + } \ +  \ + inline void PIKE_CONCAT(free_,DATA)(struct DATA *d) \ + { \ +  EXIT_BLOCK(d); \ +  d->next=PIKE_CONCAT3(free_,DATA,s); \ +  PIKE_CONCAT3(free_,DATA,s)=d; \ + } \ +  \ + void PIKE_CONCAT3(free_all_,DATA,_blocks)(void) \ + { \ +  struct PIKE_CONCAT(DATA,_block) *tmp; \ +  while((tmp=PIKE_CONCAT(DATA,_blocks))) \ +  { \ +  PIKE_CONCAT(DATA,_blocks)=tmp->next; \ +  free((char *)tmp); \ +  } \ +  PIKE_CONCAT(DATA,_blocks)=0; \ + } \      Newline at end of file added.