Cache ResourceAccess instances.

We want one connection per application per resource instance.
With this change the connection is maintained for the lifetime of the
client process (it should probably time out instead), but we at least
avoid creating a connection per operation/query, which results in
a significant performance boost (~10% for reading, 90% for writing in
dummyresourcebenchmark).

1 files changed, 2 insertions, 0 deletions

diff --git a/common/resourceaccess.h b/common/resourceaccess.h
index e87a1f7..527cfa3 100644
--- a/common/resourceaccess.h
+++ b/common/resourceaccess.h
@@ -63,6 +63,8 @@ class ResourceAccess : public ResourceAccessInterface
 {
     Q_OBJECT
 public:
+    typedef QSharedPointer<ResourceAccess> Ptr;
+
     ResourceAccess(const QByteArray &resourceName);
     ~ResourceAccess();