1 files changed, 160 insertions, 0 deletions

diff --git a/src/burn/engine/ba.h b/src/burn/engine/ba.h
new file mode 100644
index 00000000..c092fedf
--- /dev/null
+++ b/src/burn/engine/ba.h
@@ -0,0 +1,160 @@
+#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.
+
+#define BAAPI HRESULT __stdcall
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+// constants
+
+const DWORD BURN_MB_RETRYTRYAGAIN = 0x10;
+const DWORD64 BOOTSTRAPPER_APPLICATION_API_VERSION = MAKEQWORDVERSION(2024, 1, 1, 0);
+
+
+// structs
+
+typedef struct _BURN_USER_EXPERIENCE
+{
+    BURN_PAYLOADS payloads;
+
+    BURN_PAYLOAD* pPrimaryExePayload;
+    BURN_PAYLOAD* pSecondaryExePayload;
+
+    //HMODULE hUXModule;
+    //PFN_BOOTSTRAPPER_APPLICATION_PROC pfnBAProc;
+    //LPVOID pvBAProcContext;
+    HANDLE hBAProcess;
+    PIPE_RPC_HANDLE hBARpcPipe;
+    BAENGINE_CONTEXT* pEngineContext;
+
+    LPWSTR sczTempDirectory;
+
+    CRITICAL_SECTION csEngineActive;    // Changing the engine active state in the user experience must be
+                                        // syncronized through this critical section.
+                                        // Note: The engine must never do a UX callback while in this critical section.
+
+    BOOL fEngineActive;                 // Indicates that the engine is currently active with one of the execution
+                                        // steps (detect, plan, apply), and cannot accept requests from the UX.
+                                        // This flag should be cleared by the engine prior to UX callbacks that
+                                        // allow altering of the engine state.
+
+    HRESULT hrApplyError;               // Tracks if an error occurs during apply that requires the cache or
+                                        // execute threads to bail.
+
+    HWND hwndApply;                     // The window handle provided at the beginning of Apply(). Only valid
+                                        // during apply.
+
+    HWND hwndDetect;                    // The window handle provided at the beginning of Detect(). Only valid
+                                        // during Detect.
+
+    DWORD dwExitCode;                   // Exit code returned by the user experience for the engine overall.
+} BURN_USER_EXPERIENCE;
+
+
+// functions
+
+/*******************************************************************
+ BootstrapperApplicationParseFromXml - parses the bootstrapper application
+    data embedded in the bundle.
+
+*******************************************************************/
+HRESULT BootstrapperApplicationParseFromXml(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in IXMLDOMNode* pixnBundle
+);
+
+/*******************************************************************
+ BootstrapperApplicationUninitialize - uninitializes the bootstrapper
+    application data.
+
+*******************************************************************/
+void BootstrapperApplicationUninitialize(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+);
+
+/*******************************************************************
+ BootstrapperApplicationStart - starts the bootstrapper application
+    process and creates the bootstrapper application in it.
+
+*******************************************************************/
+HRESULT BootstrapperApplicationStart(
+    __in BURN_ENGINE_STATE* pEngineState,
+    __in BOOL fSecondary
+);
+
+/*******************************************************************
+ BootstrapperApplicationStop - destroys the bootstrapper application
+    in the bootstrapper application process, disconnects and waits
+    for the process to exit.
+
+*******************************************************************/
+HRESULT BootstrapperApplicationStop(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __inout BOOL* pfReload
+);
+
+int BootstrapperApplicationCheckExecuteResult(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in BOOL fRollback,
+    __in DWORD dwAllowedResults,
+    __in int nResult
+);
+
+HRESULT BootstrapperApplicationInterpretExecuteResult(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in BOOL fRollback,
+    __in DWORD dwAllowedResults,
+    __in int nResult
+);
+
+HRESULT BootstrapperApplicationEnsureWorkingFolder(
+    __in BURN_CACHE* pCache,
+    __deref_out_z LPWSTR* psczUserExperienceWorkingFolder
+);
+
+HRESULT BootstrapperApplicationRemove(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+);
+
+int BootstrapperApplicationSendError(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in BOOTSTRAPPER_ERROR_TYPE errorType,
+    __in_z_opt LPCWSTR wzPackageId,
+    __in HRESULT hrCode,
+    __in_z_opt LPCWSTR wzError,
+    __in DWORD uiFlags,
+    __in int nRecommendation
+);
+
+void BootstrapperApplicationActivateEngine(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+);
+
+void BootstrapperApplicationDeactivateEngine(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+);
+
+/********************************************************************
+ BootstrapperApplicationEnsureEngineInactive - Verifies the engine is inactive.
+   The caller MUST enter the csActive critical section before calling.
+
+*********************************************************************/
+HRESULT BootstrapperApplicationEnsureEngineInactive(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+    );
+
+void BootstrapperApplicationExecuteReset(
+    __in BURN_USER_EXPERIENCE* pUserExperience
+    );
+
+void BootstrapperApplicationExecutePhaseComplete(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in HRESULT hrResult
+    );
+
+#if defined(__cplusplus)
+}
+#endif