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27 /* Job queue with execution in a separate thread.
29 * Jobs can be added from any thread. After that, the wait call can be used
30 * to wait for completion of the job.
38 #include "util/list.h"
39 #include "util/u_thread.h"
41 /* Job completion fence.
42 * Put this into your job structure.
44 struct util_queue_fence
{
50 typedef void (*util_queue_execute_func
)(void *job
, int thread_index
);
52 struct util_queue_job
{
54 struct util_queue_fence
*fence
;
55 util_queue_execute_func execute
;
56 util_queue_execute_func cleanup
;
59 /* Put this into your context. */
63 cnd_t has_queued_cond
;
70 int write_idx
, read_idx
; /* ring buffer pointers */
71 struct util_queue_job
*jobs
;
73 /* for cleanup at exit(), protected by exit_mutex */
74 struct list_head head
;
77 bool util_queue_init(struct util_queue
*queue
,
80 unsigned num_threads
);
81 void util_queue_destroy(struct util_queue
*queue
);
82 void util_queue_fence_init(struct util_queue_fence
*fence
);
83 void util_queue_fence_destroy(struct util_queue_fence
*fence
);
85 /* optional cleanup callback is called after fence is signaled: */
86 void util_queue_add_job(struct util_queue
*queue
,
88 struct util_queue_fence
*fence
,
89 util_queue_execute_func execute
,
90 util_queue_execute_func cleanup
);
92 void util_queue_fence_wait(struct util_queue_fence
*fence
);
93 int64_t util_queue_get_thread_time_nano(struct util_queue
*queue
,
94 unsigned thread_index
);
96 /* util_queue needs to be cleared to zeroes for this to work */
98 util_queue_is_initialized(struct util_queue
*queue
)
100 return queue
->threads
!= NULL
;
104 util_queue_fence_is_signalled(struct util_queue_fence
*fence
)
106 return fence
->signalled
!= 0;