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/* ISC license. */
#include <stdint.h>
#include <string.h>
#include <skalibs/uint16.h>
#include <skalibs/tai.h>
#include <skalibs/gensetdyn.h>
#include <skalibs/avltree.h>
#include <shibari/dcache.h>
static int key_cmp (void const *a, void const *b, void *x)
{
int r = memcmp(a, b, 4) ;
if (r) return r ;
{
char const *aa = a ;
char const *bb = b ;
uint16_t len ;
uint16_unpack_big(aa+2, &len) ;
return memcmp(aa+4, bb+4, len) ;
}
}
static int tai_cmp (void const *a, void const *b, void *x)
{
tai const *ta = a ;
tai const *tb = b ;
(void)x ;
return tai_less(ta, tb) ? -1 : tai_less(tb, ta) ;
}
static void *key_dtok (uint32_t d, void *x)
{
return &GENSETDYN_P(dcache_node, (gensetdyn *)x, d)->sa.s ;
}
static void *entry_dtok (uint32_t d, void *x)
{
return &GENSETDYN_P(dcache_node, (gensetdyn *)x, d)->entry ;
}
static void *expire_dtok (uint32_t d, void *x)
{
return &GENSETDYN_P(dcache_node, (gensetdyn *)x, d)->expire ;
}
void dcache_init (dcache *z, uint64_t max)
{
gensetdyn_init(&z->storage, sizeof(dcache_node), max >> 9, 3, 8) ;
avltree_init(&z->by_key, max >> 9, 3, 8, &key_dtok, &key_cmp, &z->storage) ;
avltree_init(&z->by_entry, max >> 9, 3, 8, &entry_dtok, &tai_cmp, &z->storage) ;
avltree_init(&z->by_expire, max >> 9, 3, 8, &expire_dtok, &tai_cmp, &z->storage) ;
z->max = max ;
z->size = 0 ;
z->motion = 0 ;
}
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