Changeset 78474 in vbox for trunk/src/VBox/GuestHost/SharedClipboard/ClipboardStreamImpl-win.cpp

Timestamp:

May 13, 2019 7:44:15 AM (6 years ago)

Author:

vboxsync

Message:

Shared Clipboard/URI: Update.

File:

• trunk/src/VBox/GuestHost/SharedClipboard/ClipboardStreamImpl-win.cpp (modified) (2 diffs)

trunk/src/VBox/GuestHost/SharedClipboard/ClipboardStreamImpl-win.cpp

@@ -25 +25 @@
 #include <iprt/asm.h>
 #include <iprt/ldr.h>
+#include <iprt/thread.h>
 
 #include <VBox/GuestHost/SharedClipboard.h>
@@ -43 +44 @@
 *********************************************************************************************************************************/
 
+
+
+VBoxClipboardWinStreamImpl::VBoxClipboardWinStreamImpl(void)
+    : m_lRefCount(1)
+{
+
+}
+
+VBoxClipboardWinStreamImpl::~VBoxClipboardWinStreamImpl(void)
+{
+}
+
+/*
+ * IUnknown methods.
+ */
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::QueryInterface(REFIID iid, void ** ppvObject)
+{
+    AssertPtrReturn(ppvObject, E_INVALIDARG);
+
+    if (   iid == IID_IStream
+        || iid == IID_IUnknown)
+    {
+        AddRef();
+        *ppvObject = this;
+        return S_OK;
+    }
+
+    *ppvObject = 0;
+    return E_NOINTERFACE;
+}
+
+STDMETHODIMP_(ULONG) VBoxClipboardWinStreamImpl::AddRef(void)
+{
+    LONG lCount = InterlockedIncrement(&m_lRefCount);
+    LogFlowFunc(("lCount=%RI32\n", lCount));
+    return lCount;
+}
+
+STDMETHODIMP_(ULONG) VBoxClipboardWinStreamImpl::Release(void)
+{
+    LONG lCount = InterlockedDecrement(&m_lRefCount);
+    LogFlowFunc(("lCount=%RI32\n", m_lRefCount));
+    if (lCount == 0)
+    {
+        delete this;
+        return 0;
+    }
+
+    return lCount;
+}
+
+/*
+ * IStream methods.
+ */
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Clone(IStream** ppStream)
+{
+    RT_NOREF(ppStream);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Commit(DWORD dwFrags)
+{
+    RT_NOREF(dwFrags);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::CopyTo(IStream* pDestStream, ULARGE_INTEGER nBytesToCopy, ULARGE_INTEGER* nBytesRead,
+                                                ULARGE_INTEGER* nBytesWritten)
+{
+    RT_NOREF(pDestStream, nBytesToCopy, nBytesRead, nBytesWritten);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::LockRegion(ULARGE_INTEGER nStart, ULARGE_INTEGER nBytes,DWORD dwFlags)
+{
+    RT_NOREF(nStart, nBytes, dwFlags);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+static ULONG cbFileSize = _1M;
+static ULONG cbSizeRead = 0;
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Read(void* pvBuffer, ULONG nBytesToRead, ULONG* nBytesRead)
+{
+    /* If the file size is 0, already return at least 1 byte, else the whole operation will fail. */
+
+    ULONG cbToRead = RT_MIN(cbFileSize - cbSizeRead,  _4K /* nBytesToRead */);
+
+    if (cbToRead > nBytesToRead)
+        cbToRead = nBytesToRead;
+
+    LogFlowFunc(("pvBuffer=%p, nBytesToRead=%u -> cbSizeRead=%u, cbToRead=%u\n", pvBuffer, nBytesToRead, cbSizeRead, cbToRead));
+
+    if (cbToRead)
+    {
+        memset(pvBuffer, cbToRead, 0x65);
+        cbSizeRead += cbToRead;
+    }
+
+    if (nBytesRead)
+        *nBytesRead = cbToRead;
+
+    if (cbSizeRead == cbFileSize)
+        cbSizeRead = 0;
+
+    return S_OK;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Revert(void)
+{
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Seek(LARGE_INTEGER nMove, DWORD dwOrigin, ULARGE_INTEGER* nNewPos)
+{
+    RT_NOREF(nMove, dwOrigin, nNewPos);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::SetSize(ULARGE_INTEGER nNewSize)
+{
+    RT_NOREF(nNewSize);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Stat(STATSTG* statstg, DWORD dwFlags)
+{
+    RT_NOREF(statstg, dwFlags);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::UnlockRegion(ULARGE_INTEGER nStart, ULARGE_INTEGER nBytes, DWORD dwFlags)
+{
+    RT_NOREF(nStart, nBytes, dwFlags);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+STDMETHODIMP VBoxClipboardWinStreamImpl::Write(const void* pvBuffer, ULONG nBytesToRead, ULONG* nBytesRead)
+{
+    RT_NOREF(pvBuffer, nBytesToRead, nBytesRead);
+
+    LogFlowFuncEnter();
+    return E_NOTIMPL;
+}
+
+/*
+ * Own stuff.
+ */
+
+/* static */
+HRESULT VBoxClipboardWinStreamImpl::Create(IStream **ppStream)
+{
+    VBoxClipboardWinStreamImpl *pStream = new VBoxClipboardWinStreamImpl();
+    if (pStream)
+    {
+        pStream->AddRef();
+
+        *ppStream = pStream;
+        return S_OK;
+    }
+
+    return E_FAIL;
+}
+