PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ lwcurvepoly_from_wkb_state()

static LWCURVEPOLY* lwcurvepoly_from_wkb_state ( wkb_parse_state s)
static

CURVEPOLYTYPE.

Definition at line 648 of file lwin_wkb.c.

649 {
650  uint32_t ngeoms = integer_from_wkb_state(s);
651  if (s->error)
652  return NULL;
653  LWCURVEPOLY *cp = lwcurvepoly_construct_empty(s->srid, s->has_z, s->has_m);
654  LWGEOM *geom = NULL;
655  uint32_t i;
656 
657  /* Empty collection? */
658  if ( ngeoms == 0 )
659  return cp;
660 
661  s->depth++;
662  if (s->depth >= LW_PARSER_MAX_DEPTH)
663  {
664  lwgeom_free((LWGEOM *)cp);
665  lwerror("Geometry has too many chained curves");
666  return NULL;
667  }
668  for ( i = 0; i < ngeoms; i++ )
669  {
670  geom = lwgeom_from_wkb_state(s);
671  if ( lwcurvepoly_add_ring(cp, geom) == LW_FAILURE )
672  {
673  lwgeom_free(geom);
674  lwgeom_free((LWGEOM *)cp);
675  lwerror("Unable to add geometry (%p) to curvepoly (%p)", (void *) geom, (void *) cp);
676  return NULL;
677  }
678  }
679  s->depth--;
680 
681  return cp;
682 }
char * s
Definition: cu_in_wkt.c:23
#define LW_FAILURE
Definition: liblwgeom.h:96
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1218
int lwcurvepoly_add_ring(LWCURVEPOLY *poly, LWGEOM *ring)
Add a ring, allocating extra space if necessary.
Definition: lwcurvepoly.c:71
LWCURVEPOLY * lwcurvepoly_construct_empty(int32_t srid, char hasz, char hasm)
Definition: lwcurvepoly.c:35
void void lwerror(const char *fmt,...) __attribute__((format(printf
Write a notice out to the error handler.
static uint32_t integer_from_wkb_state(wkb_parse_state *s)
Int32 Read 4-byte integer and advance the parse state forward.
Definition: lwin_wkb.c:285
#define LW_PARSER_MAX_DEPTH
Max depth in a geometry.
Definition: lwin_wkb.c:34
LWGEOM * lwgeom_from_wkb_state(wkb_parse_state *s)
Internal function declarations.
Definition: lwin_wkb.c:743

References integer_from_wkb_state(), LW_FAILURE, LW_PARSER_MAX_DEPTH, lwcurvepoly_add_ring(), lwcurvepoly_construct_empty(), lwerror(), lwgeom_free(), lwgeom_from_wkb_state(), and s.

Referenced by lwgeom_from_wkb_state().

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