From: Markus Armbruster <armbru@pond.sub.org>
Date: Fri, 25 Feb 2011 18:40:08 +0000 (+0100)
Subject: Optimize assemble_dist_paths() for foreign distribution center
X-Git-Tag: v4.3.27~103
X-Git-Url: http://git.pond.sub.org/?p=empserver;a=commitdiff_plain;h=6eecd9cdc86d4b019fcc055293664b69c4740b04

Optimize assemble_dist_paths() for foreign distribution center

You can't distribute to a foreign sector.  This case is relatively
rare.  However, unsuccessful path search is relatively expensive, and
the extra check doesn't really slow down the common case.
---

diff --git a/src/lib/update/finish.c b/src/lib/update/finish.c
index 781fd80f5..266c6533f 100644
--- a/src/lib/update/finish.c
+++ b/src/lib/update/finish.c
@@ -140,6 +140,8 @@ assemble_dist_paths(double *import_cost)
 	dist = getsectp(sp->sct_dist_x, sp->sct_dist_y);
 	if (CANT_HAPPEN(!dist))
 	    continue;
+	if (sp->sct_own != dist->sct_own)
+	    continue;
 	/* Now, get the best distribution path over roads */
 	/* Note we go from the dist center to the sector.  This gives
 	   us the import path for that sector. */