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      1 /*
      2  * Copyright  2012 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  */
     23 
     24 #ifndef _THREADPOOL_H_
     25 #define _THREADPOOL_H_
     26 
     27 #include <pthread.h>
     28 
     29 struct NineSwapChain9;
     30 
     31 #define MAXTHREADS 1
     32 
     33 struct threadpool {
     34     pthread_mutex_t m;
     35     pthread_cond_t new_work;
     36 
     37     HANDLE wthread;
     38     pthread_t pthread;
     39     struct threadpool_task *workqueue;
     40     BOOL shutdown;
     41 };
     42 
     43 typedef void (*threadpool_task_func)(void *data);
     44 
     45 struct threadpool_task {
     46     threadpool_task_func work;
     47     void *data;
     48     struct threadpool_task *next;
     49     pthread_cond_t finish;
     50     BOOL finished;
     51 };
     52 
     53 struct threadpool *_mesa_threadpool_create(struct NineSwapChain9 *swapchain);
     54 void _mesa_threadpool_destroy(struct NineSwapChain9 *swapchain, struct threadpool *pool);
     55 struct threadpool_task *_mesa_threadpool_queue_task(struct threadpool *pool,
     56                                                     threadpool_task_func func,
     57                                                     void *data);
     58 void _mesa_threadpool_wait_for_task(struct threadpool *pool,
     59                                     struct threadpool_task **task);
     60 #endif
     61