contrib/jemalloc/src/bin.c

   1 #include "jemalloc/internal/jemalloc_preamble.h"
   2 #include "jemalloc/internal/jemalloc_internal_includes.h"
   3
   4 #include "jemalloc/internal/bin.h"
   5 #include "jemalloc/internal/witness.h"
   6
   7 const bin_info_t bin_infos[NBINS] = {
   8 #define BIN_INFO_bin_yes(reg_size, slab_size, nregs)                    \
   9         {reg_size, slab_size, nregs, BITMAP_INFO_INITIALIZER(nregs)},
  10 #define BIN_INFO_bin_no(reg_size, slab_size, nregs)
  11 #define SC(index, lg_grp, lg_delta, ndelta, psz, bin, pgs,              \
  12     lg_delta_lookup)                                                    \
  13         BIN_INFO_bin_##bin((1U<<lg_grp) + (ndelta<<lg_delta),           \
  14             (pgs << LG_PAGE), (pgs << LG_PAGE) / ((1U<<lg_grp) +        \
  15             (ndelta<<lg_delta)))
  16         SIZE_CLASSES
  17 #undef BIN_INFO_bin_yes
  18 #undef BIN_INFO_bin_no
  19 #undef SC
  20 };
  21
  22 bool
  23 bin_init(bin_t *bin) {
  24         if (malloc_mutex_init(&bin->lock, "bin", WITNESS_RANK_BIN,
  25             malloc_mutex_rank_exclusive)) {
  26                 return true;
  27         }
  28         bin->slabcur = NULL;
  29         extent_heap_new(&bin->slabs_nonfull);
  30         extent_list_init(&bin->slabs_full);
  31         if (config_stats) {
  32                 memset(&bin->stats, 0, sizeof(bin_stats_t));
  33         }
  34         return false;
  35 }
  36
  37 void
  38 bin_prefork(tsdn_t *tsdn, bin_t *bin) {
  39         malloc_mutex_prefork(tsdn, &bin->lock);
  40 }
  41
  42 void
  43 bin_postfork_parent(tsdn_t *tsdn, bin_t *bin) {
  44         malloc_mutex_postfork_parent(tsdn, &bin->lock);
  45 }
  46
  47 void
  48 bin_postfork_child(tsdn_t *tsdn, bin_t *bin) {
  49         malloc_mutex_postfork_child(tsdn, &bin->lock);
  50 }