/*

 * 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