diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp b/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp new file mode 100644 index 0000000000..a6627db213 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Common/StreamBinder.cpp @@ -0,0 +1,156 @@ +// StreamBinder.cpp
+
+#include "StdAfx.h"
+
+#include "../../Common/MyCom.h"
+
+#include "StreamBinder.h"
+
+class CBinderInStream:
+ public ISequentialInStream,
+ public CMyUnknownImp
+{
+ CStreamBinder *_binder;
+public:
+ MY_UNKNOWN_IMP1(ISequentialInStream)
+ STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
+ ~CBinderInStream() { _binder->CloseRead(); }
+ CBinderInStream(CStreamBinder *binder): _binder(binder) {}
+};
+
+STDMETHODIMP CBinderInStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+ { return _binder->Read(data, size, processedSize); }
+
+class CBinderOutStream:
+ public ISequentialOutStream,
+ public CMyUnknownImp
+{
+ CStreamBinder *_binder;
+public:
+ MY_UNKNOWN_IMP1(ISequentialOutStream)
+ STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
+ ~CBinderOutStream() { _binder->CloseWrite(); }
+ CBinderOutStream(CStreamBinder *binder): _binder(binder) {}
+};
+
+STDMETHODIMP CBinderOutStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+ { return _binder->Write(data, size, processedSize); }
+
+
+
+WRes CStreamBinder::CreateEvents()
+{
+ RINOK(_canWrite_Event.Create());
+ RINOK(_canRead_Event.Create());
+ return _readingWasClosed_Event.Create();
+}
+
+void CStreamBinder::ReInit()
+{
+ _canWrite_Event.Reset();
+ _canRead_Event.Reset();
+ _readingWasClosed_Event.Reset();
+
+ // _readingWasClosed = false;
+ _readingWasClosed2 = false;
+
+ _waitWrite = true;
+ _bufSize = 0;
+ _buf = NULL;
+ ProcessedSize = 0;
+ // WritingWasCut = false;
+}
+
+
+void CStreamBinder::CreateStreams(ISequentialInStream **inStream, ISequentialOutStream **outStream)
+{
+ // _readingWasClosed = false;
+ _readingWasClosed2 = false;
+
+ _waitWrite = true;
+ _bufSize = 0;
+ _buf = NULL;
+ ProcessedSize = 0;
+ // WritingWasCut = false;
+
+ CBinderInStream *inStreamSpec = new CBinderInStream(this);
+ CMyComPtr<ISequentialInStream> inStreamLoc(inStreamSpec);
+ *inStream = inStreamLoc.Detach();
+
+ CBinderOutStream *outStreamSpec = new CBinderOutStream(this);
+ CMyComPtr<ISequentialOutStream> outStreamLoc(outStreamSpec);
+ *outStream = outStreamLoc.Detach();
+}
+
+// (_canRead_Event && _bufSize == 0) means that stream is finished.
+
+HRESULT CStreamBinder::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+ if (processedSize)
+ *processedSize = 0;
+ if (size != 0)
+ {
+ if (_waitWrite)
+ {
+ RINOK(_canRead_Event.Lock());
+ _waitWrite = false;
+ }
+ if (size > _bufSize)
+ size = _bufSize;
+ if (size != 0)
+ {
+ memcpy(data, _buf, size);
+ _buf = ((const Byte *)_buf) + size;
+ ProcessedSize += size;
+ if (processedSize)
+ *processedSize = size;
+ _bufSize -= size;
+ if (_bufSize == 0)
+ {
+ _waitWrite = true;
+ _canRead_Event.Reset();
+ _canWrite_Event.Set();
+ }
+ }
+ }
+ return S_OK;
+}
+
+HRESULT CStreamBinder::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+ if (processedSize)
+ *processedSize = 0;
+ if (size == 0)
+ return S_OK;
+
+ if (!_readingWasClosed2)
+ {
+ _buf = data;
+ _bufSize = size;
+ _canRead_Event.Set();
+
+ /*
+ _canWrite_Event.Lock();
+ if (_readingWasClosed)
+ _readingWasClosed2 = true;
+ */
+
+ HANDLE events[2] = { _canWrite_Event, _readingWasClosed_Event };
+ DWORD waitResult = ::WaitForMultipleObjects(2, events, FALSE, INFINITE);
+ if (waitResult >= WAIT_OBJECT_0 + 2)
+ return E_FAIL;
+
+ size -= _bufSize;
+ if (size != 0)
+ {
+ if (processedSize)
+ *processedSize = size;
+ return S_OK;
+ }
+ // if (waitResult == WAIT_OBJECT_0 + 1)
+ _readingWasClosed2 = true;
+ }
+
+ // WritingWasCut = true;
+ return k_My_HRESULT_WritingWasCut;
+}
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