1 files changed, 113 insertions, 0 deletions

diff --git a/src/burn/engine/pipe.h b/src/burn/engine/pipe.h
new file mode 100644
index 00000000..429cd824
--- /dev/null
+++ b/src/burn/engine/pipe.h
@@ -0,0 +1,113 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _BURN_PIPE_CONNECTION
+{
+    LPWSTR sczName;
+    LPWSTR sczSecret;
+    DWORD dwProcessId;
+
+    HANDLE hProcess;
+    HANDLE hPipe;
+    HANDLE hCachePipe;
+} BURN_PIPE_CONNECTION;
+
+typedef enum _BURN_PIPE_MESSAGE_TYPE : DWORD
+{
+    BURN_PIPE_MESSAGE_TYPE_LOG = 0xF0000001,
+    BURN_PIPE_MESSAGE_TYPE_COMPLETE = 0xF0000002,
+    BURN_PIPE_MESSAGE_TYPE_TERMINATE = 0xF0000003,
+} BURN_PIPE_MESSAGE_TYPE;
+
+typedef struct _BURN_PIPE_MESSAGE
+{
+    DWORD dwMessage;
+    SIZE_T cbData;
+
+    BOOL fAllocatedData;
+    LPVOID pvData;
+} BURN_PIPE_MESSAGE;
+
+typedef struct _BURN_PIPE_RESULT
+{
+    DWORD dwResult;
+    BOOL fRestart;
+} BURN_PIPE_RESULT;
+
+
+typedef HRESULT (*PFN_PIPE_MESSAGE_CALLBACK)(
+    __in BURN_PIPE_MESSAGE* pMsg,
+    __in_opt LPVOID pvContext,
+    __out DWORD* pdwResult
+    );
+
+
+// Common functions.
+void PipeConnectionInitialize(
+    __in BURN_PIPE_CONNECTION* pConnection
+    );
+void PipeConnectionUninitialize(
+    __in BURN_PIPE_CONNECTION* pConnection
+    );
+HRESULT PipeSendMessage(
+    __in HANDLE hPipe,
+    __in DWORD dwMessage,
+    __in_bcount_opt(cbData) LPVOID pvData,
+    __in SIZE_T cbData,
+    __in_opt PFN_PIPE_MESSAGE_CALLBACK pfnCallback,
+    __in_opt LPVOID pvContext,
+    __out DWORD* pdwResult
+    );
+HRESULT PipePumpMessages(
+    __in HANDLE hPipe,
+    __in_opt PFN_PIPE_MESSAGE_CALLBACK pfnCallback,
+    __in_opt LPVOID pvContext,
+    __in BURN_PIPE_RESULT* pResult
+    );
+
+// Parent functions.
+HRESULT PipeCreateNameAndSecret(
+    __out_z LPWSTR *psczConnectionName,
+    __out_z LPWSTR *psczSecret
+    );
+HRESULT PipeCreatePipes(
+    __in BURN_PIPE_CONNECTION* pConnection,
+    __in BOOL fCreateCachePipe,
+    __out HANDLE* phEvent
+    );
+HRESULT PipeLaunchParentProcess(
+    __in LPCWSTR wzCommandLine,
+    __in int nCmdShow,
+    __in_z LPWSTR sczConnectionName,
+    __in_z LPWSTR sczSecret,
+    __in BOOL fDisableUnelevate
+    );
+HRESULT PipeLaunchChildProcess(
+    __in_z LPCWSTR wzExecutablePath,
+    __in BURN_PIPE_CONNECTION* pConnection,
+    __in BOOL fElevate,
+    __in_opt HWND hwndParent
+    );
+HRESULT PipeWaitForChildConnect(
+    __in BURN_PIPE_CONNECTION* pConnection
+    );
+HRESULT PipeTerminateChildProcess(
+    __in BURN_PIPE_CONNECTION* pConnection,
+    __in DWORD dwParentExitCode,
+    __in BOOL fRestart
+    );
+
+// Child functions.
+HRESULT PipeChildConnect(
+    __in BURN_PIPE_CONNECTION* pConnection,
+    __in BOOL fConnectCachePipe
+    );
+
+#ifdef __cplusplus
+}
+#endif