| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #if !defined(hymutex_h) |
| #define hymutex_h |
| |
| /* windows.h defined UDATA. Ignore its definition */ |
| #define UDATA UDATA_win32_ |
| #include <windows.h> |
| #undef UDATA /* this is safe because our UDATA is a typedef, not a macro */ |
| typedef CRITICAL_SECTION MUTEX; |
| |
| /* MUTEX_INIT */ |
| #define MUTEX_INIT(mutex) (InitializeCriticalSection(&(mutex)), 1) |
| |
| /* MUTEX_DESTROY */ |
| #define MUTEX_DESTROY(mutex) DeleteCriticalSection(&(mutex)) |
| |
| /* MUTEX_ENTER */ |
| #define MUTEX_ENTER(mutex) EnterCriticalSection(&(mutex)) |
| |
| /* |
| * MUTEX_TRY_ENTER |
| * returns 0 on success |
| * Beware: you may not have support for TryEnterCriticalSection |
| */ |
| #define MUTEX_TRY_ENTER(mutex) (!(TryEnterCriticalSection(&(mutex)))) |
| |
| /* MUTEX_EXIT */ |
| #define MUTEX_EXIT(mutex) LeaveCriticalSection(&(mutex)) |
| |
| #endif /* hymutex_h */ |
