1 /* 2 * Copyright 2015-2022 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 /* This must be the first #include file */ 11 #include "../async_local.h" 12 13 #ifdef ASYNC_WIN 14 15 # include <windows.h> 16 # include "internal/cryptlib.h" 17 ASYNC_is_capable(void)18int ASYNC_is_capable(void) 19 { 20 return 1; 21 } 22 ASYNC_set_mem_functions(ASYNC_stack_alloc_fn alloc_fn,ASYNC_stack_free_fn free_fn)23int ASYNC_set_mem_functions(ASYNC_stack_alloc_fn alloc_fn, 24 ASYNC_stack_free_fn free_fn) 25 { 26 return 0; 27 } 28 ASYNC_get_mem_functions(ASYNC_stack_alloc_fn * alloc_fn,ASYNC_stack_free_fn * free_fn)29void ASYNC_get_mem_functions(ASYNC_stack_alloc_fn *alloc_fn, 30 ASYNC_stack_free_fn *free_fn) 31 { 32 if (alloc_fn != NULL) 33 *alloc_fn = NULL; 34 if (free_fn != NULL) 35 *free_fn = NULL; 36 } 37 async_local_cleanup(void)38void async_local_cleanup(void) 39 { 40 async_ctx *ctx = async_get_ctx(); 41 if (ctx != NULL) { 42 async_fibre *fibre = &ctx->dispatcher; 43 if (fibre != NULL && fibre->fibre != NULL && fibre->converted) { 44 ConvertFiberToThread(); 45 fibre->fibre = NULL; 46 } 47 } 48 } 49 async_fibre_init_dispatcher(async_fibre * fibre)50int async_fibre_init_dispatcher(async_fibre *fibre) 51 { 52 # if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x600 53 fibre->fibre = ConvertThreadToFiberEx(NULL, FIBER_FLAG_FLOAT_SWITCH); 54 # else 55 fibre->fibre = ConvertThreadToFiber(NULL); 56 # endif 57 if (fibre->fibre == NULL) { 58 fibre->converted = 0; 59 fibre->fibre = GetCurrentFiber(); 60 if (fibre->fibre == NULL) 61 return 0; 62 } else { 63 fibre->converted = 1; 64 } 65 66 return 1; 67 } 68 async_start_func_win(PVOID unused)69VOID CALLBACK async_start_func_win(PVOID unused) 70 { 71 async_start_func(); 72 } 73 74 #endif 75
