4 files changed, 27 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_edgehash.h b/source/blender/blenlib/BLI_edgehash.h
index a5ec69cae3a..a0455489d24 100644
--- a/source/blender/blenlib/BLI_edgehash.h
+++ b/source/blender/blenlib/BLI_edgehash.h
@@ -106,6 +106,8 @@ bool     BLI_edgeset_add(EdgeSet *es, unsigned int v0, unsigned int v1);
 void     BLI_edgeset_insert(EdgeSet *es, unsigned int v0, unsigned int v1);
 bool     BLI_edgeset_haskey(EdgeSet *eh, unsigned int v0, unsigned int v1) ATTR_WARN_UNUSED_RESULT;
 void     BLI_edgeset_free(EdgeSet *es);
+void     BLI_edgeset_flag_set(EdgeSet *es, unsigned int flag);
+void     BLI_edgeset_flag_clear(EdgeSet *es, unsigned int flag);
 
 /* rely on inline api for now */
 BLI_INLINE EdgeSetIterator *BLI_edgesetIterator_new(EdgeSet *gs) { return (EdgeSetIterator *)BLI_edgehashIterator_new((EdgeHash *)gs); }
diff --git a/source/blender/blenlib/BLI_ghash.h b/source/blender/blenlib/BLI_ghash.h
index 313c4190a30..dd3f62cd6d3 100644
--- a/source/blender/blenlib/BLI_ghash.h
+++ b/source/blender/blenlib/BLI_ghash.h
@@ -192,6 +192,8 @@ GSet  *BLI_gset_new_ex(GSetHashFP hashfp, GSetCmpFP cmpfp, const char *info,
                        const unsigned int nentries_reserve) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
 GSet  *BLI_gset_new(GSetHashFP hashfp, GSetCmpFP cmpfp, const char *info) ATTR_MALLOC ATTR_WARN_UNUSED_RESULT;
 int    BLI_gset_size(GSet *gs) ATTR_WARN_UNUSED_RESULT;
+void   BLI_gset_flag_set(GSet *gs, unsigned int flag);
+void   BLI_gset_flag_clear(GSet *gs, unsigned int flag);
 void   BLI_gset_free(GSet *gs, GSetKeyFreeFP keyfreefp);
 void   BLI_gset_insert(GSet *gh, void *key);
 bool   BLI_gset_add(GSet *gs, void *key);
diff --git a/source/blender/blenlib/intern/BLI_ghash.c b/source/blender/blenlib/intern/BLI_ghash.c
index 1227623be94..74d7fdc88cb 100644
--- a/source/blender/blenlib/intern/BLI_ghash.c
+++ b/source/blender/blenlib/intern/BLI_ghash.c
@@ -972,6 +972,17 @@ void BLI_gset_free(GSet *gs, GSetKeyFreeFP keyfreefp)
 {
 	BLI_ghash_free((GHash *)gs, keyfreefp, NULL);
 }
+
+void BLI_gset_flag_set(GSet *gs, unsigned int flag)
+{
+	((GHash *)gs)->flag |= flag;
+}
+
+void BLI_gset_flag_clear(GSet *gs, unsigned int flag)
+{
+	((GHash *)gs)->flag &= ~flag;
+}
+
 /** \} */
 
 
@@ -1010,6 +1021,8 @@ GSet *BLI_gset_pair_new(const char *info)
 /**
  * Measure how well the hash function performs
  * (1.0 is approx as good as random distribution).
+ *
+ * Smaller is better!
  */
 double BLI_ghash_calc_quality(GHash *gh)
 {
diff --git a/source/blender/blenlib/intern/edgehash.c b/source/blender/blenlib/intern/edgehash.c
index f6e4aec9624..4ed82f8a473 100644
--- a/source/blender/blenlib/intern/edgehash.c
+++ b/source/blender/blenlib/intern/edgehash.c
@@ -622,6 +622,16 @@ void BLI_edgeset_free(EdgeSet *es)
 	BLI_edgehash_free((EdgeHash *)es, NULL);
 }
 
+void BLI_edgeset_flag_set(EdgeSet *es, unsigned int flag)
+{
+	((EdgeHash *)es)->flag |= flag;
+}
+
+void BLI_edgeset_flag_clear(EdgeSet *es, unsigned int flag)
+{
+	((EdgeHash *)es)->flag &= ~flag;
+}
+
 /** \} */
 
 /** \name Debugging & Introspection