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#define JEMALLOC_BITMAP_C_
#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/jemalloc_internal_includes.h"
#include "jemalloc/internal/assert.h"
/******************************************************************************/
void
bitmap_info_init(bitmap_info_t *binfo, size_t nbits) {
assert(nbits > 0);
assert(nbits <= (ZU(1) << LG_BITMAP_MAXBITS));
binfo->ngroups = BITMAP_BITS2GROUPS(nbits);
binfo->nbits = nbits;
}
static size_t
bitmap_info_ngroups(const bitmap_info_t *binfo) {
return binfo->ngroups;
}
void
bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo, bool fill) {
size_t extra;
if (fill) {
memset(bitmap, 0, bitmap_size(binfo));
return;
}
memset(bitmap, 0xffU, bitmap_size(binfo));
extra = (BITMAP_GROUP_NBITS - (binfo->nbits & BITMAP_GROUP_NBITS_MASK))
& BITMAP_GROUP_NBITS_MASK;
if (extra != 0) {
bitmap[binfo->ngroups - 1] >>= extra;
}
}
size_t
bitmap_size(const bitmap_info_t *binfo) {
return (bitmap_info_ngroups(binfo) << LG_SIZEOF_BITMAP);
}
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