pike.git/ src/ block_allocator.c

2012-02-09

2012-02-09 13:29:46 by Arne Goedeke <el@laramies.com>

• fdfd28d8edf0e6e990f47e3b38b443a72ba320d7 (13 lines) (+12/-1) ^{[ Show | Annotate ]}
  Branch: arne/block_alloc

keep 3 empty pages around

31:      #include "block_allocator.h"    + size_t _malloc_counter = 0; +    static inline void ba_htable_insert(const struct block_allocator * a,    const void * ptr, const uint16_t n);   static inline void ba_remove_page(struct block_allocator * a,
109:    a->block_size = block_size;    a->blocks = blocks;    a->num_pages = 0; +  a->empty_blocks = 0; +  a->max_empty_blocks = 3;       // we start with management structures for 16 pages    a->allocated = 16;
371:    }   #else    if (p->blocks_used == a->blocks) Pike_error("baaad!\n"); +  if (p->blocks_used == 0) { +  a->empty_pages--; +  }    p->blocks_used ++;   #ifdef BA_DEBUG    if (p->first < 1 || p->first > a->blocks) {
415:    fprintf(stderr, "reusing unfreed page\n");    }    p->data = malloc(BA_PAGESIZE(a)); +  _malloc_counter++;    if (!p->data) {    Pike_error("no mem");    }
554:    a->first = n;    }    } else if (p->blocks_used == 1) { +  if (a->empty_pages == a->max_empty_pages) {    ba_remove_page(a, n); -  +  }    return;    }    p->blocks_used --;