1 files changed, 47 insertions, 0 deletions
diff --git a/Src/Wasabi/api/service/waservicefactorytsingle.h b/Src/Wasabi/api/service/waservicefactorytsingle.h
new file mode 100644
index 00000000..3a3a8d2f
--- /dev/null
+++ b/Src/Wasabi/api/service/waservicefactorytsingle.h
@@ -0,0 +1,47 @@
+#ifndef __WASERVICEFACTORYTSINGLE_IMPL_H
+#define __WASERVICEFACTORYTSINGLE_IMPL_H
+
+/*<?<autoheader/>*/
+/*?>*/
+
+#include "waservicefactorybase.h"
+
+#include <bfc/bfc_assert.h>
+
+// this is a service factory template that holds one copy of a class
+// and reissues the pointer as needed, with reference counting
+template <class SERVICETYPE, class SERVICE>
+class waServiceFactoryTSingle : public waServiceFactoryBase<SERVICETYPE, SERVICE> {
+public:
+  waServiceFactoryTSingle(GUID myGuid = INVALID_GUID) :
+    refcount(0), waServiceFactoryBase<SERVICETYPE, SERVICE>(myGuid) {
+    singleService = new SERVICE;
+  }
+  waServiceFactoryTSingle(SERVICE *svc, GUID myGuid = INVALID_GUID) :
+    singleService(svc), refcount(0),
+    waServiceFactoryBase<SERVICETYPE, SERVICE>(myGuid) { }
+  ~waServiceFactoryTSingle() {
+    delete singleService;
+  }
+  virtual SERVICETYPE *newService() {
+    ASSERT(singleService != NULL);
+    refcount++;
+    return singleService;
+  }
+  virtual int delService(SERVICETYPE *service) {
+    ASSERT(static_cast<SERVICE*>(service) == singleService);
+    refcount--;
+    ASSERT(refcount >= 0);
+    return 1;
+  }
+
+  SERVICE *getSingleService() { return singleService; }
+
+private:
+  SERVICE * singleService;
+  int refcount;
+};
+
+
+
+#endif // __WASERVICEFACTORYTSINGLE_IMPL_H