VFS implementation for local storage service (#396)

currently, only Windows (using Projected File System) is supported

1 files changed, 98 insertions, 0 deletions

diff --git a/src/zenvfs/projfsproviderinterface.cpp b/src/zenvfs/projfsproviderinterface.cpp
new file mode 100644
index 000000000..ca4b91382
--- /dev/null
+++ b/src/zenvfs/projfsproviderinterface.cpp
@@ -0,0 +1,98 @@
+// Copyright Epic Games, Inc. All Rights Reserved.
+
+#include "projfsproviderinterface.h"
+
+#if ZEN_WITH_VFS
+
+namespace zen {
+
+HRESULT
+ProjFsProviderInterface::Notify(const PRJ_CALLBACK_DATA*	 CallbackData,
+								BOOLEAN						 IsDirectory,
+								PRJ_NOTIFICATION			 NotificationType,
+								PCWSTR						 DestinationFileName,
+								PRJ_NOTIFICATION_PARAMETERS* NotificationParameters)
+{
+	ZEN_UNUSED(CallbackData, IsDirectory, NotificationType, DestinationFileName, NotificationParameters);
+	return S_OK;
+}
+
+HRESULT
+ProjFsProviderInterface::QueryFileName(const PRJ_CALLBACK_DATA* CallbackData)
+{
+	ZEN_UNUSED(CallbackData);
+	return S_OK;
+}
+
+void
+ProjFsProviderInterface::CancelCommand(const PRJ_CALLBACK_DATA* CallbackData)
+{
+	ZEN_UNUSED(CallbackData);
+}
+
+//////////////////////////////////////////////////////////////////////////
+//
+// Forwarding functions for all ProjFS callbacks - these simply call the
+// corresponding member function on the active provider
+//
+
+HRESULT
+ProjFsProviderInterface::StartDirEnumCallback_C(_In_ const PRJ_CALLBACK_DATA* CallbackData, _In_ const GUID* EnumerationId)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->StartDirEnum(CallbackData, EnumerationId);
+}
+
+HRESULT
+ProjFsProviderInterface::EndDirEnumCallback_C(_In_ const PRJ_CALLBACK_DATA* CallbackData, _In_ const GUID* EnumerationId)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->EndDirEnum(CallbackData, EnumerationId);
+}
+
+HRESULT
+ProjFsProviderInterface::GetDirEnumCallback_C(_In_ const PRJ_CALLBACK_DATA*	   CallbackData,
+											  _In_ const GUID*				   EnumerationId,
+											  _In_opt_ PCWSTR				   SearchExpression,
+											  _In_ PRJ_DIR_ENTRY_BUFFER_HANDLE DirEntryBufferHandle)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)
+		->GetDirEnum(CallbackData, EnumerationId, SearchExpression, DirEntryBufferHandle);
+}
+
+HRESULT
+ProjFsProviderInterface::GetPlaceholderInfoCallback_C(_In_ const PRJ_CALLBACK_DATA* CallbackData)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->GetPlaceholderInfo(CallbackData);
+}
+
+HRESULT
+ProjFsProviderInterface::GetFileDataCallback_C(_In_ const PRJ_CALLBACK_DATA* CallbackData, _In_ UINT64 ByteOffset, _In_ UINT32 Length)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->GetFileData(CallbackData, ByteOffset, Length);
+}
+
+HRESULT
+ProjFsProviderInterface::NotificationCallback_C(_In_ const PRJ_CALLBACK_DATA*		 CallbackData,
+												_In_ BOOLEAN						 IsDirectory,
+												_In_ PRJ_NOTIFICATION				 NotificationType,
+												_In_opt_ PCWSTR						 DestinationFileName,
+												_Inout_ PRJ_NOTIFICATION_PARAMETERS* NotificationParameters)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)
+		->Notify(CallbackData, IsDirectory, NotificationType, DestinationFileName, NotificationParameters);
+}
+
+HRESULT
+ProjFsProviderInterface::QueryFileName_C(_In_ const PRJ_CALLBACK_DATA* CallbackData)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->QueryFileName(CallbackData);
+}
+
+void
+ProjFsProviderInterface::CancelCommand_C(_In_ const PRJ_CALLBACK_DATA* CallbackData)
+{
+	return reinterpret_cast<ProjFsProviderInterface*>(CallbackData->InstanceContext)->CancelCommand(CallbackData);
+}
+
+}  // namespace zen
+
+#endif