1 files changed, 60 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.h b/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.h
new file mode 100644
index 0000000000..f4d4f3b42c
--- /dev/null
+++ b/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.h
@@ -0,0 +1,60 @@
+// StreamBinder.h
+
+#ifndef __STREAM_BINDER_H
+#define __STREAM_BINDER_H
+
+#include "../../Windows/Synchronization.h"
+
+#include "../IStream.h"
+
+/*
+We don't use probably UNSAFE version:
+reader thread:
+     _canWrite_Event.Set();
+     _readingWasClosed = true
+     _canWrite_Event.Set();
+writer thread:
+     _canWrite_Event.Wait()
+      if (_readingWasClosed)
+Can second call of _canWrite_Event.Set() be executed without memory barrier, if event is already set?
+*/
+
+class CStreamBinder
+{
+  NWindows::NSynchronization::CAutoResetEvent _canWrite_Event;
+  NWindows::NSynchronization::CManualResetEvent _canRead_Event;
+  NWindows::NSynchronization::CManualResetEvent _readingWasClosed_Event;
+
+  // bool _readingWasClosed;
+  bool _readingWasClosed2;
+  // bool WritingWasCut;
+  bool _waitWrite;
+  UInt32 _bufSize;
+  const void *_buf;
+public:
+  UInt64 ProcessedSize;
+
+  WRes CreateEvents();
+  void CreateStreams(ISequentialInStream **inStream, ISequentialOutStream **outStream);
+  
+  void ReInit();
+  
+  HRESULT Read(void *data, UInt32 size, UInt32 *processedSize);
+  HRESULT Write(const void *data, UInt32 size, UInt32 *processedSize);
+
+  void CloseRead()
+  {
+    _readingWasClosed_Event.Set();
+    // _readingWasClosed = true;
+    // _canWrite_Event.Set();
+  }
+  
+  void CloseWrite()
+  {
+    _buf = NULL;
+    _bufSize = 0;
+    _canRead_Event.Set();
+  }
+};
+
+#endif