Rehash method added which frees unused memory from the hash_map. Has a delete-safe iterator. see comments.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@8542 e03df62e-2008-0410-955e-edbf42e46eb7

2 files changed, 24 insertions, 0 deletions

diff --git a/include/bancache.h b/include/bancache.h
index 19fc0d952..2ae740ece 100644
--- a/include/bancache.h
+++ b/include/bancache.h
@@ -62,6 +62,8 @@ class CoreExport BanCacheManager : public classbase
 		this->ServerInstance = Instance;
 		this->BanHash = new BanCacheHash();
 	}
+
+	void RehashCache();
 };
 
 #endif
diff --git a/src/bancache.cpp b/src/bancache.cpp
index a831b1219..bfa1bde11 100644
--- a/src/bancache.cpp
+++ b/src/bancache.cpp
@@ -63,4 +63,26 @@ bool BanCacheManager::RemoveHit(BanCacheHit *b)
 	return true;
 }
 
+void BanCacheManager::RehashCache()
+{
+	BanCacheHash* NewHash = new BanCacheHash();
+
+	BanCacheHash::iterator safei;
+	for (BanCacheHash::iterator n = BanHash->begin(); n != BanHash->end(); )
+	{
+		safei = n;
+		safei++;
+
+		/* Safe to delete items here through iterator 'n' */
+
+		/* Actually inserts a std::pair */
+		NewHash->insert(*n);
 
+		/* End of safe section */
+
+		n = safei;
+	}
+
+	delete BanHash;
+	BanHash = NewHash;
+}