From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Fri, 30 Apr 2021 00:33:56 +0200 Subject: initial/final commit --- openssl-1.1.0h/include/internal/thread_once.h | 45 +++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 openssl-1.1.0h/include/internal/thread_once.h (limited to 'openssl-1.1.0h/include/internal/thread_once.h') diff --git a/openssl-1.1.0h/include/internal/thread_once.h b/openssl-1.1.0h/include/internal/thread_once.h new file mode 100644 index 0000000..2242443 --- /dev/null +++ b/openssl-1.1.0h/include/internal/thread_once.h @@ -0,0 +1,45 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include + +#define DEFINE_RUN_ONCE(init) \ + static int init(void); \ + int init##_ossl_ret_ = 0; \ + void init##_ossl_(void) \ + { \ + init##_ossl_ret_ = init(); \ + } \ + static int init(void) +#define DECLARE_RUN_ONCE(init) \ + extern int init##_ossl_ret_; \ + void init##_ossl_(void); + +#define DEFINE_RUN_ONCE_STATIC(init) \ + static int init(void); \ + static int init##_ossl_ret_ = 0; \ + static void init##_ossl_(void) \ + { \ + init##_ossl_ret_ = init(); \ + } \ + static int init(void) + +/* + * RUN_ONCE - use CRYPTO_THREAD_run_once, and check if the init succeeded + * @once: pointer to static object of type CRYPTO_ONCE + * @init: function name that was previously given to DEFINE_RUN_ONCE, + * DEFINE_RUN_ONCE_STATIC or DECLARE_RUN_ONCE. This function + * must return 1 for success or 0 for failure. + * + * The return value is 1 on success (*) or 0 in case of error. + * + * (*) by convention, since the init function must return 1 on success. + */ +#define RUN_ONCE(once, init) \ + (CRYPTO_THREAD_run_once(once, init##_ossl_) ? init##_ossl_ret_ : 0) -- cgit v1.2.3