1 files changed, 53 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/Windows/Memory.h b/src/libs/7zip/win/CPP/Windows/Memory.h
new file mode 100644
index 000000000..1984baf6a
--- /dev/null
+++ b/src/libs/7zip/win/CPP/Windows/Memory.h
@@ -0,0 +1,53 @@
+// Windows/Memory.h
+
+#ifndef __WINDOWS_MEMORY_H
+#define __WINDOWS_MEMORY_H
+
+namespace NWindows {
+namespace NMemory {
+
+class CGlobal
+{
+  HGLOBAL m_MemoryHandle;
+public:
+  CGlobal(): m_MemoryHandle(NULL){};
+  ~CGlobal() { Free(); }
+  operator HGLOBAL() const { return m_MemoryHandle; };
+  void Attach(HGLOBAL hGlobal)
+  {
+    Free();
+    m_MemoryHandle = hGlobal;
+  }
+  HGLOBAL Detach()
+  {
+    HGLOBAL h = m_MemoryHandle;
+    m_MemoryHandle = NULL;
+    return h;
+  }
+  bool Alloc(UINT flags, SIZE_T size);
+  bool Free();
+  LPVOID Lock() const { return GlobalLock(m_MemoryHandle); }
+  void Unlock() const { GlobalUnlock(m_MemoryHandle); }
+  bool ReAlloc(SIZE_T size);
+};
+
+class CGlobalLock
+{
+  HGLOBAL m_Global;
+  LPVOID m_Pointer;
+public:
+  LPVOID GetPointer() const { return m_Pointer; }
+  CGlobalLock(HGLOBAL hGlobal): m_Global(hGlobal)
+  {
+    m_Pointer = GlobalLock(hGlobal);
+  };
+  ~CGlobalLock()
+  {
+    if (m_Pointer != NULL)
+      GlobalUnlock(m_Global);
+  }
+};
+
+}}
+
+#endif