1 files changed, 96 insertions, 0 deletions

diff --git a/src/dnchost/hostfxr.h b/src/dnchost/hostfxr.h
new file mode 100644
index 00000000..85e6e0ab
--- /dev/null
+++ b/src/dnchost/hostfxr.h
@@ -0,0 +1,96 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+
+
+// ***** ABOUT THIS HEADER *****
+// **************************************************************************************
+//
+// This is the version on 2019-12-22 from
+// https://github.com/dotnet/runtime/blob/master/src/installer/corehost/cli/hostfxr.h
+//
+// **************************************************************************************
+// ****************************
+
+
+#ifndef __HOSTFXR_H__
+#define __HOSTFXR_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if defined(_WIN32)
+    #define HOSTFXR_CALLTYPE __cdecl
+    #ifdef _WCHAR_T_DEFINED
+        typedef wchar_t char_t;
+    #else
+        typedef unsigned short char_t;
+    #endif
+#else
+    #define HOSTFXR_CALLTYPE
+    typedef char char_t;
+#endif
+
+enum hostfxr_delegate_type
+{
+    hdt_com_activation,
+    hdt_load_in_memory_assembly,
+    hdt_winrt_activation,
+    hdt_com_register,
+    hdt_com_unregister,
+    hdt_load_assembly_and_get_function_pointer
+};
+
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_main_fn)(const int argc, const char_t **argv);
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_main_startupinfo_fn)(
+    const int argc,
+    const char_t **argv,
+    const char_t *host_path,
+    const char_t *dotnet_root,
+    const char_t *app_path);
+
+typedef void(HOSTFXR_CALLTYPE *hostfxr_error_writer_fn)(const char_t *message);
+typedef hostfxr_error_writer_fn(HOSTFXR_CALLTYPE *hostfxr_set_error_writer_fn)(hostfxr_error_writer_fn error_writer);
+
+typedef void* hostfxr_handle;
+struct hostfxr_initialize_parameters
+{
+    size_t size;
+    const char_t *host_path;
+    const char_t *dotnet_root;
+};
+
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_initialize_for_dotnet_command_line_fn)(
+    int argc,
+    const char_t **argv,
+    const struct hostfxr_initialize_parameters *parameters,
+    /*out*/ hostfxr_handle *host_context_handle);
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_initialize_for_runtime_config_fn)(
+    const char_t *runtime_config_path,
+    const struct hostfxr_initialize_parameters *parameters,
+    /*out*/ hostfxr_handle *host_context_handle);
+
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_get_runtime_property_value_fn)(
+    const hostfxr_handle host_context_handle,
+    const char_t *name,
+    /*out*/ const char_t **value);
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_set_runtime_property_value_fn)(
+    const hostfxr_handle host_context_handle,
+    const char_t *name,
+    const char_t *value);
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_get_runtime_properties_fn)(
+    const hostfxr_handle host_context_handle,
+    /*inout*/ size_t * count,
+    /*out*/ const char_t **keys,
+    /*out*/ const char_t **values);
+
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_run_app_fn)(const hostfxr_handle host_context_handle);
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_get_runtime_delegate_fn)(
+    const hostfxr_handle host_context_handle,
+    enum hostfxr_delegate_type type,
+    /*out*/ void **delegate);
+
+typedef int32_t(HOSTFXR_CALLTYPE *hostfxr_close_fn)(const hostfxr_handle host_context_handle);
+
+#endif //__HOSTFXR_H__
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