Hanging resolved (critical sections unlocking)

src/shared/CriticalSection.h

Index: src/shared/CriticalSection.h
===================================================================
new file mode 100644
--- /dev/null
+++ b/src/shared/CriticalSection.h
@@ -0,0 +1,40 @@
+#ifndef CRITICAL_SECTION_H
+#define CRITICAL_SECTION_H
+
+class CriticalSection
+{
+public:
+  CriticalSection()
+  {
+    InitializeCriticalSection(&section);
+  }
+
+  ~CriticalSection()
+  {
+    DeleteCriticalSection(&section);
+  }
+
+  class Lock
+  {
+  public:
+    Lock(CriticalSection& cs)
+        : section(&cs.section)
+    {
+      EnterCriticalSection(section);
+    }
+
+    ~Lock()
+    {
+      LeaveCriticalSection(section);
+    }
+  private:
+    LPCRITICAL_SECTION section;
+    Lock(const Lock&);
+    Lock& operator=(const Lock&);
+  };
+private:
+  CRITICAL_SECTION section;
+  CriticalSection(const CriticalSection&);
+  CriticalSection& operator=(const CriticalSection&);
+};
+#endif