1/*
2 * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * This is the same detection used in cryptlib to set up the thread local
12 * storage that we depend on, so just copy that
13 */
14#if defined(_WIN32) && !defined(OPENSSL_NO_ASYNC)
15#include <openssl/async.h>
16# define ASYNC_WIN
17# define ASYNC_ARCH
18
19# include <windows.h>
20# include "internal/cryptlib.h"
21
22typedef struct async_fibre_st {
23    LPVOID fibre;
24    int converted;
25} async_fibre;
26
27# define async_fibre_swapcontext(o,n,r) \
28        (SwitchToFiber((n)->fibre), 1)
29
30# if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x600
31#   define async_fibre_makecontext(c) \
32        ((c)->fibre = CreateFiberEx(0, 0, FIBER_FLAG_FLOAT_SWITCH, \
33                                    async_start_func_win, 0))
34# else
35#   define async_fibre_makecontext(c) \
36        ((c)->fibre = CreateFiber(0, async_start_func_win, 0))
37# endif
38
39# define async_fibre_free(f)             (DeleteFiber((f)->fibre))
40
41int async_fibre_init_dispatcher(async_fibre *fibre);
42VOID CALLBACK async_start_func_win(PVOID unused);
43
44#endif
45