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