[0.0 -> 0.1 ] integrated : pyaux.h

git-svn-id: https://pykd.svn.codeplex.com/svn@70638 9b283d60-5439-405e-af05-b73fd8c4d996

pykd/pyaux.h

@@ -0,0 +1,90 @@
+#pragma once
+
+#include <windows.h>
+
+///////////////////////////////////////////////////////////////////////////////
+
+class PyThreadStateSaver {
+
+public:
+
+    PyThreadStateSaver() {
+        m_index = TlsAlloc();
+    }
+
+    ~PyThreadStateSaver() {
+        TlsFree( m_index );
+    }
+
+    void saveState() {
+        if ( !isWindbgExt() )
+            TlsSetValue( m_index, PyEval_SaveThread() );
+        else
+            WindbgGlobalSession::SavePyState();                
+    }
+
+    void restoreState() {
+        if ( !isWindbgExt() )
+        {
+            PyThreadState*      state = (PyThreadState*)TlsGetValue( m_index );
+            if ( state )
+                PyEval_RestoreThread( state );
+        }
+        else
+        {
+            WindbgGlobalSession::RestorePyState();
+        }
+    }
+
+private:
+
+    DWORD   m_index;
+};
+
+extern PyThreadStateSaver       g_pyThreadState;
+
+
+//typedef PyThreadState *PyThreadStatePtr;
+//extern __declspec( thread ) PyThreadStatePtr ptrPyThreadState;
+
+//  --> call back 
+//  { PyThread_StateSave  state( winext->getThreadState() );
+//    do_callback();
+//  }
+//
+//  Ĺńëč ęîëáĺę áűë âűçâŕí č ďđč ýňîě ó ňĺęůĺăî ďîňîęŕ ńîőđŕíĺí ęîíňĺęńň ( áűë âűçîâ setExecutionStatus )
+//  ňî ďĺđĺä âűďîëíĺíčĺě ďčňîíîâńęîăî ęîäŕ íóćíî âîńńňŕíîâčňü ęîíňĺęńň, ŕ ďîńëĺ âîçâđŕňŕ óďđŕâëĺíč˙,
+//  ńíîâŕ ńîőđŕíčňü ĺăî
+
+class PyThread_StateSave {
+
+public:
+
+    PyThread_StateSave() 
+    {
+        g_pyThreadState.restoreState();
+    }
+
+    ~PyThread_StateSave() {
+        g_pyThreadState.saveState();
+    }
+};
+
+// { PyThread_StateRestore   state;
+//   long_or_block_opreration();
+// }
+
+class PyThread_StateRestore
+{
+public:
+
+    PyThread_StateRestore() {
+        g_pyThreadState.saveState();
+    }
+
+    ~PyThread_StateRestore() {
+        g_pyThreadState.restoreState();
+    }
+};
+
+///////////////////////////////////////////////////////////////////////////////