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Diffstat (limited to 'lib/isc/win32/include/isc/mutex.h')
| -rw-r--r-- | lib/isc/win32/include/isc/mutex.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/isc/win32/include/isc/mutex.h b/lib/isc/win32/include/isc/mutex.h new file mode 100644 index 0000000..3fcc538 --- /dev/null +++ b/lib/isc/win32/include/isc/mutex.h @@ -0,0 +1,47 @@ +/* + * 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 */ |