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 22 typedef 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 41 int async_fibre_init_dispatcher(async_fibre *fibre); 42 VOID CALLBACK async_start_func_win(PVOID unused); 43 44 #endif 45