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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