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/*
* contrib/btree_gist/btree_macaddr8.c
*/
#include "postgres.h"
#include "btree_gist.h"
#include "btree_utils_num.h"
#include "utils/builtins.h"
#include "utils/inet.h"
typedef struct
{
macaddr8 lower;
macaddr8 upper;
/* make struct size = sizeof(gbtreekey16) */
} mac8KEY;
/*
** OID ops
*/
PG_FUNCTION_INFO_V1(gbt_macad8_compress);
PG_FUNCTION_INFO_V1(gbt_macad8_fetch);
PG_FUNCTION_INFO_V1(gbt_macad8_union);
PG_FUNCTION_INFO_V1(gbt_macad8_picksplit);
PG_FUNCTION_INFO_V1(gbt_macad8_consistent);
PG_FUNCTION_INFO_V1(gbt_macad8_penalty);
PG_FUNCTION_INFO_V1(gbt_macad8_same);
static bool
gbt_macad8gt(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr8_gt, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macad8ge(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr8_ge, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macad8eq(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr8_eq, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macad8le(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr8_le, PointerGetDatum(a), PointerGetDatum(b)));
}
static bool
gbt_macad8lt(const void *a, const void *b, FmgrInfo *flinfo)
{
return DatumGetBool(DirectFunctionCall2(macaddr8_lt, PointerGetDatum(a), PointerGetDatum(b)));
}
static int
gbt_macad8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
{
mac8KEY *ia = (mac8KEY *) (((const Nsrt *) a)->t);
mac8KEY *ib = (mac8KEY *) (((const Nsrt *) b)->t);
int res;
res = DatumGetInt32(DirectFunctionCall2(macaddr8_cmp, Macaddr8PGetDatum(&ia->lower), Macaddr8PGetDatum(&ib->lower)));
if (res == 0)
return DatumGetInt32(DirectFunctionCall2(macaddr8_cmp, Macaddr8PGetDatum(&ia->upper), Macaddr8PGetDatum(&ib->upper)));
return res;
}
static const gbtree_ninfo tinfo =
{
gbt_t_macad8,
sizeof(macaddr8),
16, /* sizeof(gbtreekey16) */
gbt_macad8gt,
gbt_macad8ge,
gbt_macad8eq,
gbt_macad8le,
gbt_macad8lt,
gbt_macad8key_cmp,
NULL
};
/**************************************************
* macaddr ops
**************************************************/
static uint64
mac8_2_uint64(macaddr8 *m)
{
unsigned char *mi = (unsigned char *) m;
uint64 res = 0;
int i;
for (i = 0; i < 8; i++)
res += (((uint64) mi[i]) << ((uint64) ((7 - i) * 8)));
return res;
}
Datum
gbt_macad8_compress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
}
Datum
gbt_macad8_fetch(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
}
Datum
gbt_macad8_consistent(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
macaddr8 *query = (macaddr8 *) PG_GETARG_POINTER(1);
StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
/* Oid subtype = PG_GETARG_OID(3); */
bool *recheck = (bool *) PG_GETARG_POINTER(4);
mac8KEY *kkk = (mac8KEY *) 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_macad8_union(PG_FUNCTION_ARGS)
{
GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
void *out = palloc0(sizeof(mac8KEY));
*(int *) PG_GETARG_POINTER(1) = sizeof(mac8KEY);
PG_RETURN_POINTER(gbt_num_union((void *) out, entryvec, &tinfo, fcinfo->flinfo));
}
Datum
gbt_macad8_penalty(PG_FUNCTION_ARGS)
{
mac8KEY *origentry = (mac8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
mac8KEY *newentry = (mac8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
float *result = (float *) PG_GETARG_POINTER(2);
uint64 iorg[2],
inew[2];
iorg[0] = mac8_2_uint64(&origentry->lower);
iorg[1] = mac8_2_uint64(&origentry->upper);
inew[0] = mac8_2_uint64(&newentry->lower);
inew[1] = mac8_2_uint64(&newentry->upper);
penalty_num(result, iorg[0], iorg[1], inew[0], inew[1]);
PG_RETURN_POINTER(result);
}
Datum
gbt_macad8_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_macad8_same(PG_FUNCTION_ARGS)
{
mac8KEY *b1 = (mac8KEY *) PG_GETARG_POINTER(0);
mac8KEY *b2 = (mac8KEY *) 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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