refactor: make os_handle.h non os specific

Use the same file `os_handle.h` on both
Linux and Windows.
Change implementation of `HandleType` -> `UnifiedHandle` to
`std::variant<int, void *>`
use `int` on Linux
use `void *` on Windows

Related-To: NEO-8092
Signed-off-by: Fabian Zwolinski <fabian.zwolinski@intel.com>

shared/source/os_interface/CMakeLists.txt

@@ -30,6 +30,7 @@ set(NEO_CORE_OS_INTERFACE
     ${CMAKE_CURRENT_SOURCE_DIR}/os_context.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_context.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_environment.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/os_handle.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_interface.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_interface.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_library.h

shared/source/os_interface/linux/CMakeLists.txt

@@ -62,7 +62,6 @@ set(NEO_CORE_OS_INTERFACE_LINUX
     ${CMAKE_CURRENT_SOURCE_DIR}/memory_info.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_context_linux.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_context_linux.h
-    ${CMAKE_CURRENT_SOURCE_DIR}/os_handle.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_inc.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_interface_linux.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_interface_linux.h

shared/source/os_interface/os_handle.h

@@ -7,6 +7,8 @@
 
 #pragma once
 
+#include <variant>
+
 namespace NEO {
-using HandleType = int;
+using UnifiedHandle = std::variant<int, void *>;
 }; // namespace NEO

shared/source/os_interface/windows/CMakeLists.txt

@@ -21,7 +21,6 @@ set(NEO_CORE_OS_INTERFACE_WINDOWS
     ${CMAKE_CURRENT_SOURCE_DIR}/environment_variables.h
     ${CMAKE_CURRENT_SOURCE_DIR}/product_helper_drm_stub.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/kmd_notify_properties_windows.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/os_handle.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_inc.h
     ${CMAKE_CURRENT_SOURCE_DIR}/os_interface_win.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/os_library_win.cpp

shared/source/os_interface/windows/os_handle.h

@@ -1,12 +0,0 @@
-/*
- * Copyright (C) 2023 Intel Corporation
- *
- * SPDX-License-Identifier: MIT
- *
- */
-
-#pragma once
-
-namespace NEO {
-using HandleType = void *;
-}; // namespace NEO