1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2024 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef UIC_THREADPOOL_H
30 #define UIC_THREADPOOL_H
31
32 #include "../ui/toolkit.h"
33
34 #ifndef _WIN32
35 #include <pthread.h>
36 #endif
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42
43 typedef struct UiJob {
44 UiObject *obj;
45 ui_threadfunc job_func;
46 void *job_data;
47 ui_callback finish_callback;
48 void *finish_data;
49 } UiJob;
50
51
52 typedef struct _threadpool_job threadpool_job;
53 typedef void*(*job_callback_f)(void *data);
54
55 typedef struct _pool_queue pool_queue_t;
56 struct UiThreadpool {
57 pthread_mutex_t queue_lock;
58 pthread_mutex_t avlbl_lock;
59 pthread_cond_t available;
60 pool_queue_t *queue;
61 uint32_t queue_len;
62 uint32_t num_idle;
63 int min_threads;
64 int max_threads;
65 };
66
67 struct _threadpool_job {
68 job_callback_f callback;
69 void *data;
70 };
71
72 struct _pool_queue {
73 threadpool_job *job;
74 pool_queue_t *next;
75 };
76
77 UiThreadpool* threadpool_new(int min, int max);
78 int threadpool_start(UiThreadpool *pool);
79 void* threadpool_func(void *data);
80 threadpool_job* threadpool_get_job(UiThreadpool *pool);
81 void threadpool_run(UiThreadpool *pool, job_callback_f func, void *data);
82 void threadpool_enqueue_job(UiThreadpool *pool, threadpool_job *job);
83
84 #ifdef __cplusplus
85 }
86 #endif
87
88 #endif /* UIC_THREADPOOL_H */
89
90