mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-01-04 02:40:11 +01:00
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*
|
|
* Copyright © 2016 Advanced Micro Devices, Inc.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
|
|
* AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
* USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*/
|
|
|
|
/* Job queue with execution in a separate thread.
|
|
*
|
|
* Jobs can be added from any thread. After that, the wait call can be used
|
|
* to wait for completion of the job.
|
|
*/
|
|
|
|
#ifndef U_QUEUE_H
|
|
#define U_QUEUE_H
|
|
|
|
#include <string.h>
|
|
|
|
#include "util/list.h"
|
|
#include "util/u_thread.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Job completion fence.
|
|
* Put this into your job structure.
|
|
*/
|
|
struct util_queue_fence {
|
|
mtx_t mutex;
|
|
cnd_t cond;
|
|
int signalled;
|
|
};
|
|
|
|
typedef void (*util_queue_execute_func)(void *job, int thread_index);
|
|
|
|
struct util_queue_job {
|
|
void *job;
|
|
struct util_queue_fence *fence;
|
|
util_queue_execute_func execute;
|
|
util_queue_execute_func cleanup;
|
|
};
|
|
|
|
/* Put this into your context. */
|
|
struct util_queue {
|
|
const char *name;
|
|
mtx_t lock;
|
|
cnd_t has_queued_cond;
|
|
cnd_t has_space_cond;
|
|
thrd_t *threads;
|
|
int num_queued;
|
|
unsigned num_threads;
|
|
int kill_threads;
|
|
int max_jobs;
|
|
int write_idx, read_idx; /* ring buffer pointers */
|
|
struct util_queue_job *jobs;
|
|
|
|
/* for cleanup at exit(), protected by exit_mutex */
|
|
struct list_head head;
|
|
};
|
|
|
|
bool util_queue_init(struct util_queue *queue,
|
|
const char *name,
|
|
unsigned max_jobs,
|
|
unsigned num_threads);
|
|
void util_queue_destroy(struct util_queue *queue);
|
|
void util_queue_fence_init(struct util_queue_fence *fence);
|
|
void util_queue_fence_destroy(struct util_queue_fence *fence);
|
|
|
|
/* optional cleanup callback is called after fence is signaled: */
|
|
void util_queue_add_job(struct util_queue *queue,
|
|
void *job,
|
|
struct util_queue_fence *fence,
|
|
util_queue_execute_func execute,
|
|
util_queue_execute_func cleanup);
|
|
|
|
void util_queue_fence_wait(struct util_queue_fence *fence);
|
|
int64_t util_queue_get_thread_time_nano(struct util_queue *queue,
|
|
unsigned thread_index);
|
|
|
|
/* util_queue needs to be cleared to zeroes for this to work */
|
|
static inline bool
|
|
util_queue_is_initialized(struct util_queue *queue)
|
|
{
|
|
return queue->threads != NULL;
|
|
}
|
|
|
|
static inline bool
|
|
util_queue_fence_is_signalled(struct util_queue_fence *fence)
|
|
{
|
|
return fence->signalled != 0;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|