[postgis-tickets] r14977 - Make adding a line to topology interruptible

[Sandro Santilli]

Author: strk
Date: 2016-06-23 00:15:12 -0700 (Thu, 23 Jun 2016)
New Revision: 14977

Modified:
   trunk/NEWS
   trunk/liblwgeom/lwgeom_topo.c
Log:
Make adding a line to topology interruptible

... as it otherwise gets frustrating when slow (see #3587)

Modified: trunk/NEWS
===================================================================
--- trunk/NEWS	2016-06-23 07:15:05 UTC (rev 14976)
+++ trunk/NEWS	2016-06-23 07:15:12 UTC (rev 14977)
@@ -41,6 +41,7 @@
   - #3383, Avoid deserializing small geometries during index operations
     (Dan Baston)
   - #3400, Minor optimization of PIP routines (Dan Baston)
+  - Make adding a line to topology interruptible (Sandro Santilli)
 
 PostGIS 2.2.2
 2016/03/22

Modified: trunk/liblwgeom/lwgeom_topo.c
===================================================================
--- trunk/liblwgeom/lwgeom_topo.c	2016-06-23 07:15:05 UTC (rev 14976)
+++ trunk/liblwgeom/lwgeom_topo.c	2016-06-23 07:15:12 UTC (rev 14977)
@@ -5659,6 +5659,7 @@
     int nn=0;
     for (i=0; i<num; ++i)
     {
+      LW_ON_INTERRUPT(return NULL);
       LWT_ISO_EDGE *e = &(edges[i]);
       LWGEOM *g = lwline_as_lwgeom(e->geom);
       LWDEBUGF(2, "Computing distance from edge %d having %d points", i, e->geom->points->npoints);