templates like this->

4 files changed, 51 insertions, 2 deletions

diff --git a/src/AS_DCP_TimedText.cpp b/src/AS_DCP_TimedText.cpp
index 84dd3ac..7f434a7 100644
--- a/src/AS_DCP_TimedText.cpp
+++ b/src/AS_DCP_TimedText.cpp
@@ -163,7 +163,7 @@ ASDCP::TimedText::MXFReader::h__Reader::MD_to_TimedText_TDesc(TimedText::TimedTe
 	}
     }
 
-  return RESULT_OK;
+  return result;
 }
 
 //
diff --git a/src/KM_error.h b/src/KM_error.h
index a91d416..2d3513a 100755
--- a/src/KM_error.h
+++ b/src/KM_error.h
@@ -114,6 +114,35 @@ namespace Kumu
     return Kumu::RESULT_NULL_STR; \
   }
 
+namespace Kumu
+{
+  // simple tracing mechanism
+  class DTrace_t
+  {
+    DTrace_t();
+    
+  protected:
+    const char* m_Label;
+    Result_t*   m_Watch;
+    int         m_Line;
+    const char* m_File;
+    int         m_Sequence;
+
+  public:
+    DTrace_t(const char* Label, Result_t* Watch, int Line, const char* File);
+    ~DTrace_t();
+  };
+}
+
+#ifdef KM_TRACE
+#define WDTRACE(l) DTrace_t __wl__Trace__((l), 0, __LINE__, __FILE__)
+#define WDTRACER(l,r) DTrace_t __wl__Trace__((l), &(r), __LINE__, __FILE__)
+#else
+#define WDTRACE(l)
+#define WDTRACER(l,r)
+#endif
+
+
 #endif // _KM_ERROR_H_
 
 //
diff --git a/src/KM_platform.h b/src/KM_platform.h
index 0c577a1..111cbbf 100644
--- a/src/KM_platform.h
+++ b/src/KM_platform.h
@@ -166,7 +166,7 @@ namespace Kumu
       inline T&   operator*()  const { return *m_p; }
       inline T*   operator->() const { return m_p; }
       inline      operator T*()const { return m_p; }
-      inline const mem_ptr<T>& operator=(T* p) { set(p); return *this; }
+      inline const mem_ptr<T>& operator=(T* p) { this->set(p); return *this; }
       inline T*   set(T* p)          { delete m_p; m_p = p; return m_p; }
       inline T*   get()        const { return m_p; }
       inline void release()          { m_p = 0; }
diff --git a/src/KM_util.cpp b/src/KM_util.cpp
index 99bb4a9..6dd3d33 100755
--- a/src/KM_util.cpp
+++ b/src/KM_util.cpp
@@ -111,6 +111,26 @@ Kumu::Result_t::~Result_t() {}
 
 
 //------------------------------------------------------------------------------------------
+// DTrace internals
+
+static int s_DTraceSequence = 0;
+
+Kumu::DTrace_t::DTrace_t(const char* Label, Kumu::Result_t* Watch, int Line, const char* File)
+  : m_Label(Label), m_Watch(Watch), m_Line(Line), m_File(File)
+{
+  m_Sequence = s_DTraceSequence++;
+  DefaultLogSink().Debug("@enter %s[%d] (%s at %d)\n", m_Label, m_Sequence, m_File, m_Line);
+}
+
+Kumu::DTrace_t::~DTrace_t()
+{
+  if ( m_Watch != 0  )
+    DefaultLogSink().Debug("@exit %s[%d]: %s\n", m_Label, m_Sequence, m_Watch->Label());
+  else
+    DefaultLogSink().Debug("@exit %s[%d]\n", m_Label, m_Sequence);
+}
+
+//------------------------------------------------------------------------------------------
 
 
 const char  fill = '=';