Line data    Source code

       1             : /*
       2             :  * contrib/btree_gist/btree_macaddr8.c
       3             :  */
       4             : #include "postgres.h"
       5             : 
       6             : #include "btree_gist.h"
       7             : #include "btree_utils_num.h"
       8             : #include "utils/fmgrprotos.h"
       9             : #include "utils/inet.h"
      10             : #include "utils/sortsupport.h"
      11             : 
      12             : typedef struct
      13             : {
      14             :     macaddr8    lower;
      15             :     macaddr8    upper;
      16             :     /* make struct size = sizeof(gbtreekey16) */
      17             : } mac8KEY;
      18             : 
      19             : /* GiST support functions */
      20           4 : PG_FUNCTION_INFO_V1(gbt_macad8_compress);
      21           4 : PG_FUNCTION_INFO_V1(gbt_macad8_fetch);
      22           4 : PG_FUNCTION_INFO_V1(gbt_macad8_union);
      23           4 : PG_FUNCTION_INFO_V1(gbt_macad8_picksplit);
      24           4 : PG_FUNCTION_INFO_V1(gbt_macad8_consistent);
      25           4 : PG_FUNCTION_INFO_V1(gbt_macad8_penalty);
      26           4 : PG_FUNCTION_INFO_V1(gbt_macad8_same);
      27           4 : PG_FUNCTION_INFO_V1(gbt_macad8_sortsupport);
      28             : 
      29             : static bool
      30        4186 : gbt_macad8gt(const void *a, const void *b, FmgrInfo *flinfo)
      31             : {
      32        4186 :     return DatumGetBool(DirectFunctionCall2(macaddr8_gt, PointerGetDatum(a), PointerGetDatum(b)));
      33             : }
      34             : static bool
      35         324 : gbt_macad8ge(const void *a, const void *b, FmgrInfo *flinfo)
      36             : {
      37         324 :     return DatumGetBool(DirectFunctionCall2(macaddr8_ge, PointerGetDatum(a), PointerGetDatum(b)));
      38             : }
      39             : 
      40             : static bool
      41         300 : gbt_macad8eq(const void *a, const void *b, FmgrInfo *flinfo)
      42             : {
      43         300 :     return DatumGetBool(DirectFunctionCall2(macaddr8_eq, PointerGetDatum(a), PointerGetDatum(b)));
      44             : }
      45             : 
      46             : static bool
      47        1226 : gbt_macad8le(const void *a, const void *b, FmgrInfo *flinfo)
      48             : {
      49        1226 :     return DatumGetBool(DirectFunctionCall2(macaddr8_le, PointerGetDatum(a), PointerGetDatum(b)));
      50             : }
      51             : 
      52             : static bool
      53        4786 : gbt_macad8lt(const void *a, const void *b, FmgrInfo *flinfo)
      54             : {
      55        4786 :     return DatumGetBool(DirectFunctionCall2(macaddr8_lt, PointerGetDatum(a), PointerGetDatum(b)));
      56             : }
      57             : 
      58             : 
      59             : static int
      60        2394 : gbt_macad8key_cmp(const void *a, const void *b, FmgrInfo *flinfo)
      61             : {
      62        2394 :     mac8KEY    *ia = (mac8KEY *) (((const Nsrt *) a)->t);
      63        2394 :     mac8KEY    *ib = (mac8KEY *) (((const Nsrt *) b)->t);
      64             :     int         res;
      65             : 
      66        2394 :     res = DatumGetInt32(DirectFunctionCall2(macaddr8_cmp, Macaddr8PGetDatum(&ia->lower), Macaddr8PGetDatum(&ib->lower)));
      67        2394 :     if (res == 0)
      68        1800 :         return DatumGetInt32(DirectFunctionCall2(macaddr8_cmp, Macaddr8PGetDatum(&ia->upper), Macaddr8PGetDatum(&ib->upper)));
      69             : 
      70         594 :     return res;
      71             : }
      72             : 
      73             : 
      74             : static const gbtree_ninfo tinfo =
      75             : {
      76             :     gbt_t_macad8,
      77             :     sizeof(macaddr8),
      78             :     16,                         /* sizeof(gbtreekey16) */
      79             :     gbt_macad8gt,
      80             :     gbt_macad8ge,
      81             :     gbt_macad8eq,
      82             :     gbt_macad8le,
      83             :     gbt_macad8lt,
      84             :     gbt_macad8key_cmp,
      85             :     NULL
      86             : };
      87             : 
      88             : 
      89             : /**************************************************
      90             :  * GiST support functions
      91             :  **************************************************/
      92             : 
      93             : static uint64
      94           0 : mac8_2_uint64(macaddr8 *m)
      95             : {
      96           0 :     unsigned char *mi = (unsigned char *) m;
      97           0 :     uint64      res = 0;
      98             :     int         i;
      99             : 
     100           0 :     for (i = 0; i < 8; i++)
     101           0 :         res += (((uint64) mi[i]) << ((uint64) ((7 - i) * 8)));
     102           0 :     return res;
     103             : }
     104             : 
     105             : Datum
     106        1208 : gbt_macad8_compress(PG_FUNCTION_ARGS)
     107             : {
     108        1208 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     109             : 
     110        1208 :     PG_RETURN_POINTER(gbt_num_compress(entry, &tinfo));
     111             : }
     112             : 
     113             : Datum
     114          16 : gbt_macad8_fetch(PG_FUNCTION_ARGS)
     115             : {
     116          16 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     117             : 
     118          16 :     PG_RETURN_POINTER(gbt_num_fetch(entry, &tinfo));
     119             : }
     120             : 
     121             : Datum
     122        3648 : gbt_macad8_consistent(PG_FUNCTION_ARGS)
     123             : {
     124        3648 :     GISTENTRY  *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
     125        3648 :     macaddr8   *query = (macaddr8 *) PG_GETARG_POINTER(1);
     126        3648 :     StrategyNumber strategy = (StrategyNumber) PG_GETARG_UINT16(2);
     127             : 
     128             :     /* Oid      subtype = PG_GETARG_OID(3); */
     129        3648 :     bool       *recheck = (bool *) PG_GETARG_POINTER(4);
     130        3648 :     mac8KEY    *kkk = (mac8KEY *) DatumGetPointer(entry->key);
     131             :     GBT_NUMKEY_R key;
     132             : 
     133             :     /* All cases served by this function are exact */
     134        3648 :     *recheck = false;
     135             : 
     136        3648 :     key.lower = (GBT_NUMKEY *) &kkk->lower;
     137        3648 :     key.upper = (GBT_NUMKEY *) &kkk->upper;
     138             : 
     139        3648 :     PG_RETURN_BOOL(gbt_num_consistent(&key, query, &strategy,
     140             :                                       GIST_LEAF(entry), &tinfo, fcinfo->flinfo));
     141             : }
     142             : 
     143             : Datum
     144           2 : gbt_macad8_union(PG_FUNCTION_ARGS)
     145             : {
     146           2 :     GistEntryVector *entryvec = (GistEntryVector *) PG_GETARG_POINTER(0);
     147           2 :     void       *out = palloc0(sizeof(mac8KEY));
     148             : 
     149           2 :     *(int *) PG_GETARG_POINTER(1) = sizeof(mac8KEY);
     150           2 :     PG_RETURN_POINTER(gbt_num_union(out, entryvec, &tinfo, fcinfo->flinfo));
     151             : }
     152             : 
     153             : Datum
     154           0 : gbt_macad8_penalty(PG_FUNCTION_ARGS)
     155             : {
     156           0 :     mac8KEY    *origentry = (mac8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(0))->key);
     157           0 :     mac8KEY    *newentry = (mac8KEY *) DatumGetPointer(((GISTENTRY *) PG_GETARG_POINTER(1))->key);
     158           0 :     float      *result = (float *) PG_GETARG_POINTER(2);
     159             :     uint64      iorg[2],
     160             :                 inew[2];
     161             : 
     162           0 :     iorg[0] = mac8_2_uint64(&origentry->lower);
     163           0 :     iorg[1] = mac8_2_uint64(&origentry->upper);
     164           0 :     inew[0] = mac8_2_uint64(&newentry->lower);
     165           0 :     inew[1] = mac8_2_uint64(&newentry->upper);
     166             : 
     167           0 :     penalty_num(result, iorg[0], iorg[1], inew[0], inew[1]);
     168             : 
     169           0 :     PG_RETURN_POINTER(result);
     170             : }
     171             : 
     172             : Datum
     173           6 : gbt_macad8_picksplit(PG_FUNCTION_ARGS)
     174             : {
     175           6 :     PG_RETURN_POINTER(gbt_num_picksplit((GistEntryVector *) PG_GETARG_POINTER(0),
     176             :                                         (GIST_SPLITVEC *) PG_GETARG_POINTER(1),
     177             :                                         &tinfo, fcinfo->flinfo));
     178             : }
     179             : 
     180             : Datum
     181           0 : gbt_macad8_same(PG_FUNCTION_ARGS)
     182             : {
     183           0 :     mac8KEY    *b1 = (mac8KEY *) PG_GETARG_POINTER(0);
     184           0 :     mac8KEY    *b2 = (mac8KEY *) PG_GETARG_POINTER(1);
     185           0 :     bool       *result = (bool *) PG_GETARG_POINTER(2);
     186             : 
     187           0 :     *result = gbt_num_same((void *) b1, (void *) b2, &tinfo, fcinfo->flinfo);
     188           0 :     PG_RETURN_POINTER(result);
     189             : }
     190             : 
     191             : static int
     192       11578 : gbt_macaddr8_ssup_cmp(Datum x, Datum y, SortSupport ssup)
     193             : {
     194       11578 :     mac8KEY    *arg1 = (mac8KEY *) DatumGetPointer(x);
     195       11578 :     mac8KEY    *arg2 = (mac8KEY *) DatumGetPointer(y);
     196             : 
     197             :     /* for leaf items we expect lower == upper, so only compare lower */
     198       11578 :     return DatumGetInt32(DirectFunctionCall2(macaddr8_cmp,
     199             :                                              Macaddr8PGetDatum(&arg1->lower),
     200             :                                              Macaddr8PGetDatum(&arg2->lower)));
     201             : }
     202             : 
     203             : Datum
     204           2 : gbt_macad8_sortsupport(PG_FUNCTION_ARGS)
     205             : {
     206           2 :     SortSupport ssup = (SortSupport) PG_GETARG_POINTER(0);
     207             : 
     208           2 :     ssup->comparator = gbt_macaddr8_ssup_cmp;
     209           2 :     ssup->ssup_extra = NULL;
     210             : 
     211           2 :     PG_RETURN_VOID();
     212             : }