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crypto/thread/api.c
73 строки
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Čestmír Kalina
crypto: add preemptive threading support
17 окт 2022, 11:45
17 окт 2022, 11:45
4574a7f
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/* * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (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 <openssl/configuration.h> #include <openssl/thread.h> #include <internal/thread.h> uint32_t OSSL_get_thread_support_flags(void) { int support = 0; #if !defined(OPENSSL_NO_THREAD_POOL) support |= OSSL_THREAD_SUPPORT_FLAG_THREAD_POOL; #endif #if !defined(OPENSSL_NO_DEFAULT_THREAD_POOL) support |= OSSL_THREAD_SUPPORT_FLAG_DEFAULT_SPAWN; #endif return support; } #if defined(OPENSSL_NO_THREAD_POOL) || defined(OPENSSL_NO_DEFAULT_THREAD_POOL) int OSSL_set_max_threads(OSSL_LIB_CTX *ctx, uint64_t max_threads) { return 0; } uint64_t OSSL_get_max_threads(OSSL_LIB_CTX *ctx) { return 0; } #else uint64_t OSSL_get_max_threads(OSSL_LIB_CTX *ctx) { uint64_t ret = 0; OSSL_LIB_CTX_THREADS *tdata = OSSL_LIB_CTX_GET_THREADS(ctx); if (tdata == NULL) goto fail; ossl_crypto_mutex_lock(tdata->lock); ret = tdata->max_threads; ossl_crypto_mutex_unlock(tdata->lock); fail: return ret; } int OSSL_set_max_threads(OSSL_LIB_CTX *ctx, uint64_t max_threads) { OSSL_LIB_CTX_THREADS *tdata; tdata = OSSL_LIB_CTX_GET_THREADS(ctx); if (tdata == NULL) return 0; ossl_crypto_mutex_lock(tdata->lock); tdata->max_threads = max_threads; ossl_crypto_mutex_unlock(tdata->lock); return 1; } #endif