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/*
* Copyright 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 <openssl/crypto.h>
#if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG)
CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
{
CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(unsigned int));
if (lock == NULL)
return NULL;
*(unsigned int *)lock = 1;
return lock;
}
int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
{
OPENSSL_assert(*(unsigned int *)lock == 1);
return 1;
}
int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
{
OPENSSL_assert(*(unsigned int *)lock == 1);
return 1;
}
int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
{
OPENSSL_assert(*(unsigned int *)lock == 1);
return 1;
}
void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock) {
if (lock == NULL)
return;
*(unsigned int *)lock = 0;
OPENSSL_free(lock);
return;
}
int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
{
if (*once != 0)
return 1;
init();
*once = 1;
return 1;
}
#define OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX 256
static void *thread_local_storage[OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX];
int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
{
static unsigned int thread_local_key = 0;
if (thread_local_key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
return 0;
*key = thread_local_key++;
thread_local_storage[*key] = NULL;
return 1;
}
void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
{
if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
return NULL;
return thread_local_storage[*key];
}
int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
{
if (*key >= OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX)
return 0;
thread_local_storage[*key] = val;
return 1;
}
int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
{
*key = OPENSSL_CRYPTO_THREAD_LOCAL_KEY_MAX + 1;
return 1;
}
CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
{
return 0;
}
int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
{
return (a == b);
}
int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
{
*val += amount;
*ret = *val;
return 1;
}
#endif
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