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      1 #ifndef _DESEMAPHORE_H
      2 #define _DESEMAPHORE_H
      3 /*-------------------------------------------------------------------------
      4  * drawElements Thread Library
      5  * ---------------------------
      6  *
      7  * Copyright 2014 The Android Open Source Project
      8  *
      9  * Licensed under the Apache License, Version 2.0 (the "License");
     10  * you may not use this file except in compliance with the License.
     11  * You may obtain a copy of the License at
     12  *
     13  *      http://www.apache.org/licenses/LICENSE-2.0
     14  *
     15  * Unless required by applicable law or agreed to in writing, software
     16  * distributed under the License is distributed on an "AS IS" BASIS,
     17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     18  * See the License for the specific language governing permissions and
     19  * limitations under the License.
     20  *
     21  *//*!
     22  * \file
     23  * \brief Semaphore class.
     24  *//*--------------------------------------------------------------------*/
     25 
     26 #include "deDefs.h"
     27 
     28 DE_BEGIN_EXTERN_C
     29 
     30 /* Semaphore type. */
     31 typedef deUintptr		deSemaphore;
     32 
     33 /*--------------------------------------------------------------------*//*!
     34  * \brief Semaphore attributes.
     35  *//*--------------------------------------------------------------------*/
     36 typedef struct deSemaphoreAttributes_s
     37 {
     38 	deUint32		flags;
     39 } deSemaphoreAttributes;
     40 
     41 deSemaphore		deSemaphore_create			(int initialValue, const deSemaphoreAttributes* attributes);
     42 void			deSemaphore_destroy			(deSemaphore semaphore);
     43 
     44 void			deSemaphore_increment		(deSemaphore semaphore);
     45 void			deSemaphore_decrement		(deSemaphore semaphore);
     46 
     47 deBool			deSemaphore_tryDecrement	(deSemaphore semaphore);
     48 
     49 DE_END_EXTERN_C
     50 
     51 #endif /* _DESEMAPHORE_H */
     52