PostGIS  2.1.10dev-r@@SVN_REVISION@@
Datum LWGEOM_recv ( PG_FUNCTION_ARGS  )

Definition at line 477 of file lwgeom_inout.c.

References geometry_serialize(), LW_PARSER_CHECK_ALL, lwgeom_add_bbox(), lwgeom_free(), lwgeom_from_wkb(), lwgeom_needs_bbox(), and postgis_valid_typmod().

478 {
479  StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
480  int32 geom_typmod = -1;
481  GSERIALIZED *geom;
482  LWGEOM *lwgeom;
483 
484  if ( (PG_NARGS()>2) && (!PG_ARGISNULL(2)) ) {
485  geom_typmod = PG_GETARG_INT32(2);
486  }
487 
488  lwgeom = lwgeom_from_wkb((uint8_t*)buf->data, buf->len, LW_PARSER_CHECK_ALL);
489 
490  if ( lwgeom_needs_bbox(lwgeom) )
491  lwgeom_add_bbox(lwgeom);
492 
493  /* Set cursor to the end of buffer (so the backend is happy) */
494  buf->cursor = buf->len;
495 
496  geom = geometry_serialize(lwgeom);
497  lwgeom_free(lwgeom);
498 
499  if ( geom_typmod >= 0 )
500  {
501  geom = postgis_valid_typmod(geom, geom_typmod);
502  POSTGIS_DEBUG(3, "typmod and geometry were consistent");
503  }
504  else
505  {
506  POSTGIS_DEBUG(3, "typmod was -1");
507  }
508 
509 
510  PG_RETURN_POINTER(geom);
511 }
GSERIALIZED * postgis_valid_typmod(GSERIALIZED *gser, int32_t typmod)
Check the consistency of the metadata we want to enforce in the typmod: srid, type and dimensionality...
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1006
LWGEOM * geom
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)
void lwgeom_add_bbox(LWGEOM *lwgeom)
Compute a bbox if not already computed.
Definition: lwgeom.c:555
#define LW_PARSER_CHECK_ALL
Definition: liblwgeom.h:1707
LWGEOM * lwgeom_from_wkb(const uint8_t *wkb, const size_t wkb_size, const char check)
WKB inputs must have a declared size, to prevent malformed WKB from reading off the end of the memory...
Definition: lwin_wkb.c:728
int lwgeom_needs_bbox(const LWGEOM *geom)
Check whether or not a lwgeom is big enough to warrant a bounding box.
Definition: lwgeom.c:1059

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