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/*
* contrib/btree_gist/btree_macaddr.c
*/
#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/builtins.h"
#include "utils/inet.h"
typedef struct
{
macaddr lower;
macaddr upper;
char pad[4]; /* make struct size = sizeof(gbtreekey16) */
} macKEY;
/*
** OID ops
*/
PG_FUNCTION_INFO_V1(gbt_macad_compress);
PG_FUNCTION_INFO_V1(gbt_macad_fetch);
PG_FUNCTION_INFO_V1(gbt_macad_union);
PG_FUNCTION_INFO_V1(gbt_macad_picksplit);
PG_FUNCTION_INFO_V1(gbt_macad_consistent);
PG_FUNCTION_INFO_V1(gbt_macad_penalty);
PG_FUNCTION_INFO_V1(gbt_macad_same);
static bool
gbt_macadgt(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr_gt, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macadge(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr_ge, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macadeq(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr_eq, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macadle(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr_le, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macadlt(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr_lt, PointerGetDatum(a), PointerGetDatum(b)));
}
static int
gbt_macadkey_cmp(const void *a, const void *b, FmgrInfo *flinfo)
{
macKEY *ia = (macKEY *) (((const Nsrt *) a)->t);
macKEY *ib = (macKEY *) (((const Nsrt *) b)->t);
int res;
res = DatumGetInt32(DirectFunctionCall2(macaddr_cmp, MacaddrPGetDatum(&ia->lower), MacaddrPGetDatum(&ib->lower)));
if (res == 0)
return DatumGetInt32(DirectFunctionCall2(macaddr_cmp, MacaddrPGetDatum(&ia->upper), MacaddrPGetDatum(&ib->upper)));
return res;
}
static const gbtree_ninfo tinfo =
{
gbt_t_macad,
sizeof(macaddr),
16, /* sizeof(gbtreekey16) */
gbt_macadgt,
gbt_macadge,
gbt_macadeq,
gbt_macadle,
gbt_macadlt,
gbt_macadkey_cmp,
NULL
};
/**************************************************
* macaddr ops
**************************************************/
static uint64
mac_2_uint64(macaddr *m)
{
unsigned char *mi = (unsigned char *) m;
uint64 res = 0;
int i;
for (i = 0; i < 6; i++)
res += (((uint64) mi[i]) << ((uint64) ((5 - i) * 8)));
return res;
}
Datum
gbt_macad_compress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
}
Datum
gbt_macad_fetch(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
}
Datum
gbt_macad_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
macaddr *query = (macaddr *) PG_GETARG_POINTER(1);
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
/* Oid subtype = PG_GETARG_OID(3); */
bool *recheck = (bool *) PG_GETARG_POINTER(4);
macKEY *kkk = (macKEY *) DatumGetPointer(entry->key);
GBT_NUMKEY_R key;
/* All cases served by this function are exact */
*recheck = false;
key.lower = (GBT_NUMKEY *) &kkk->lower;
key.upper = (GBT_NUMKEY *) &kkk->upper;
PG_RETURN_BOOL(gbt_num_consistent(&key, (void *) query, &strategy,
GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
}
Datum
gbt_macad_union(PG_FUNCTION_ARGS)
{
GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
void *out = palloc0(sizeof(macKEY));
*(int *) PG_GETARG_POINTER(1) = sizeof(macKEY);
PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
}
Datum
gbt_macad_penalty(PG_FUNCTION_ARGS)
{
macKEY *origentry = (macKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
macKEY *newentry = (macKEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
float *result = (float *) PG_GETARG_POINTER(2);
uint64 iorg[2],
inew[2];
iorg[0] = mac_2_uint64(&origentry->lower);
iorg[1] = mac_2_uint64(&origentry->upper);
inew[0] = mac_2_uint64(&newentry->lower);
inew[1] = mac_2_uint64(&newentry->upper);
penalty_num(result, iorg[0], iorg[1], inew[0], inew[1]);
PG_RETURN_POINTER(result);
}
Datum
gbt_macad_picksplit(PG_FUNCTION_ARGS)
{
PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
(GIST_SPLITVEC *) PG_GETARG_POINTER(1),
&tinfo, fcinfo->flinfo));
}
Datum
gbt_macad_same(PG_FUNCTION_ARGS)
{
macKEY *b1 = (macKEY *) PG_GETARG_POINTER(0);
macKEY *b2 = (macKEY *) PG_GETARG_POINTER(1);
bool *result = (bool *) PG_GETARG_POINTER(2);
*result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
PG_RETURN_POINTER(result);
}
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