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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef ISC_MUTEX_H
#define ISC_MUTEX_H 1
#include <windows.h>
#include <isc/net.h>
#include <isc/result.h>
typedef CRITICAL_SECTION isc_mutex_t;
/*
* This definition is here since some versions of WINBASE.H
* omits it for some reason.
*/
#if (_WIN32_WINNT < 0x0400)
WINBASEAPI BOOL WINAPI
TryEnterCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
#endif /* _WIN32_WINNT < 0x0400 */
#define isc_mutex_init(mp) InitializeCriticalSection((mp))
#define isc_mutex_lock(mp) (EnterCriticalSection((mp)), ISC_R_SUCCESS)
#define isc_mutex_unlock(mp) (LeaveCriticalSection((mp)), ISC_R_SUCCESS)
#define isc_mutex_trylock(mp) \
(TryEnterCriticalSection((mp)) ? ISC_R_SUCCESS : ISC_R_LOCKBUSY)
#define isc_mutex_destroy(mp) (DeleteCriticalSection((mp)))
/*
* This is a placeholder for now since we are not keeping any mutex stats
*/
#define isc_mutex_stats(fp) \
do { \
} while (0)
#endif /* ISC_MUTEX_H */
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