mirror of https://github.com/openssl/openssl.git
137 lines
2.7 KiB
C
137 lines
2.7 KiB
C
/*
|
|
* Copyright 2016-2018 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/crypto.h>
|
|
#include "internal/cryptlib.h"
|
|
|
|
#if !defined(OPENSSL_THREADS) || defined(CRYPTO_TDEBUG)
|
|
|
|
CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
|
|
{
|
|
CRYPTO_RWLOCK *lock;
|
|
|
|
if ((lock = OPENSSL_zalloc(sizeof(unsigned int))) == NULL) {
|
|
/* Don't set error, to avoid recursion blowup. */
|
|
return NULL;
|
|
}
|
|
|
|
*(unsigned int *)lock = 1;
|
|
|
|
return lock;
|
|
}
|
|
|
|
int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
|
|
{
|
|
if (!ossl_assert(*(unsigned int *)lock == 1))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
|
|
{
|
|
if (!ossl_assert(*(unsigned int *)lock == 1))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
|
|
{
|
|
if (!ossl_assert(*(unsigned int *)lock == 1))
|
|
return 0;
|
|
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;
|
|
}
|
|
|
|
int openssl_init_fork_handlers(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|