mirror of
https://codeberg.org/anoncontributorxmr/monero.git
synced 2024-11-24 16:32:25 +00:00
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
|
/* arc4_lock.c - global lock for arc4random
|
||
|
|
*
|
||
|
|
* Copyright (c) 2014, NLnet Labs. All rights reserved.
|
||
|
|
*
|
||
|
|
* This software is open source.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
*
|
||
|
|
* Redistributions of source code must retain the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* Neither the name of the NLNET LABS nor the names of its contributors may
|
||
|
|
* be used to endorse or promote products derived from this software without
|
||
|
|
* specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||
|
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
#include "config.h"
|
||
|
|
#define LOCKRET(func) func
|
||
|
|
#include "util/locks.h"
|
||
|
|
|
||
|
|
void _ARC4_LOCK(void);
|
||
|
|
void _ARC4_UNLOCK(void);
|
||
|
|
|
||
|
|
#ifdef THREADS_DISABLED
|
||
|
|
void _ARC4_LOCK(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void _ARC4_UNLOCK(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
#else /* !THREADS_DISABLED */
|
||
|
|
|
||
|
|
static lock_quick_t arc4lock;
|
||
|
|
static int arc4lockinit = 0;
|
||
|
|
|
||
|
|
void _ARC4_LOCK(void)
|
||
|
|
{
|
||
|
|
if(!arc4lockinit)
|
||
|
|
lock_quick_init(&arc4lock);
|
||
|
|
lock_quick_lock(&arc4lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
void _ARC4_UNLOCK(void)
|
||
|
|
{
|
||
|
|
lock_quick_unlock(&arc4lock);
|
||
|
|
}
|
||
|
|
#endif /* THREADS_DISABLED */
|