cli_ure: adapt destructors in cli_uno library to "C++/CLI"

commit 4b56d82c7d20ba5897d87aaf7fc94da5356b8eec converted the cli_uno
library from "Managed C++" to "C++/CLI", but forgot one detail:

The destructors on "ref" classes were mapped to Finalize() methods in
the old syntax, but the new one maps them to Dispose() methods, which
are only invoked on stack-allocated objects.  Presumably this omission
results in leaking of native C++ UNO objects.

Reading the C++/CLI documentation i get the impression that:
1) the destructor should explicitly call the finalizer
2) the CLR will not call the finalizer itself iff the destructor is
   invoked

http://msdn.microsoft.com/en-us/library/ms235315.aspx
http://msdn.microsoft.com/en-us/library/ke3a209d%28v=vs.110%29.aspx

Change-Id: I509d9b69a399c3d7d6597060ab9b7c78c5916e11
Reviewed-on: https://gerrit.libreoffice.org/11132
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>

4 files changed, 23 insertions, 5 deletions

diff --git a/cli_ure/source/uno_bridge/cli_environment.cxx b/cli_ure/source/uno_bridge/cli_environment.cxx
index 826b56e015d6..0bcf88a40699 100644
--- a/cli_ure/source/uno_bridge/cli_environment.cxx
+++ b/cli_ure/source/uno_bridge/cli_environment.cxx
@@ -47,13 +47,17 @@ inline Cli_environment::Cli_environment()
 #endif
 }
 
-Cli_environment::~Cli_environment()
+Cli_environment::~Cli_environment() ///< IDisposable Cli_environment::Dispose()
+{
+    this->!Cli_environment(); // call finalizer
+}
+
+Cli_environment::!Cli_environment() ///< Cli_environment::Finalize()
 {
     OSL_ENSURE(_numRegisteredObjects == 0,
                "cli uno bridge: CLI environment contains unrevoked objects");
 }
 
-
 System::Object^ Cli_environment::registerInterface(
     System::Object^ obj, System::String^ oid)
 {
diff --git a/cli_ure/source/uno_bridge/cli_environment.h b/cli_ure/source/uno_bridge/cli_environment.h
index 0a0b251aa452..41e1166494d6 100644
--- a/cli_ure/source/uno_bridge/cli_environment.h
+++ b/cli_ure/source/uno_bridge/cli_environment.h
@@ -56,6 +56,7 @@ public:
     inline Cli_environment();
 
     ~Cli_environment();
+    !Cli_environment();
 
     /**
        Registers an UNO object as being mapped by this bridge. The resulting
diff --git a/cli_ure/source/uno_bridge/cli_proxy.cxx b/cli_ure/source/uno_bridge/cli_proxy.cxx
index 86e5078db376..c5734c1af935 100644
--- a/cli_ure/source/uno_bridge/cli_proxy.cxx
+++ b/cli_ure/source/uno_bridge/cli_proxy.cxx
@@ -87,7 +87,13 @@ UnoInterfaceInfo::UnoInterfaceInfo(Bridge const * bridge, uno_Interface* unoI,
         }
     }
 }
-UnoInterfaceInfo::~UnoInterfaceInfo()
+
+UnoInterfaceInfo::~UnoInterfaceInfo() ///< IDisposable UnoInterfaceInfo::Dispose()
+{
+    this->!UnoInterfaceInfo(); // call finalizer
+}
+
+UnoInterfaceInfo::!UnoInterfaceInfo() ///< UnoInterfaceInfo::Finalize()
 {
     //accessing unmanaged objects is ok.
    m_bridge->m_uno_env->revokeInterface(
@@ -124,7 +130,12 @@ UnoInterfaceProxy::UnoInterfaceProxy(
 
 }
 
-UnoInterfaceProxy::~UnoInterfaceProxy()
+UnoInterfaceProxy::~UnoInterfaceProxy() ///< IDisposable UnoInterfaceProxy::Dispose()
+{
+    this->!UnoInterfaceProxy(); // call finalizer
+}
+
+UnoInterfaceProxy::!UnoInterfaceProxy() ///< UnoInterfaceProxy::Finalize()
 {
 #if OSL_DEBUG_LEVEL >= 2
     sd::Trace::WriteLine(System::String::Format(
@@ -140,7 +151,6 @@ UnoInterfaceProxy::~UnoInterfaceProxy()
     m_bridge->release();
 }
 
-
 System::Object^ UnoInterfaceProxy::create(
     Bridge * bridge,
     uno_Interface * pUnoI,
diff --git a/cli_ure/source/uno_bridge/cli_proxy.h b/cli_ure/source/uno_bridge/cli_proxy.h
index feb1ad4c4a74..32ffd571d2e1 100644
--- a/cli_ure/source/uno_bridge/cli_proxy.h
+++ b/cli_ure/source/uno_bridge/cli_proxy.h
@@ -46,6 +46,8 @@ public:
     UnoInterfaceInfo(Bridge const * bridge, uno_Interface* unoI,
                      typelib_InterfaceTypeDescription* td);
     ~UnoInterfaceInfo();
+    !UnoInterfaceInfo();
+
     uno_Interface * m_unoI; // wrapped interface
     System::Type ^ m_type;
     typelib_InterfaceTypeDescription* m_typeDesc;
@@ -112,6 +114,7 @@ public:
     void addUnoInterface(uno_Interface* pUnoI,
                          typelib_InterfaceTypeDescription* pTd);
     ~UnoInterfaceProxy();
+    !UnoInterfaceProxy();
 
     /**
      */