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/*
* Copyright (c) 2010-2020 The RetroArch team
* Copyright (c) 2017 John Schember <john@nachtimwald.com>
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (tpool.h).
* ---------------------------------------------------------------------------------------
*
* 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, sublicense, 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 above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS 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
*/
#ifndef __LIBRETRO_SDK_TPOOL_H__
#define __LIBRETRO_SDK_TPOOL_H__
#include <retro_common_api.h>
#include <boolean.h>
#include <retro_inline.h>
#include <retro_miscellaneous.h>
RETRO_BEGIN_DECLS
struct tpool;
typedef struct tpool tpool_t;
/**
* (*thread_func_t):
* @arg : Argument.
*
* Callback function that the pool will call to do work.
**/
typedef void (*thread_func_t)(void *arg);
/**
* tpool_create:
* @num : Number of threads the pool should have.
* If 0 defaults to 2.
*
* Create a thread pool.
*
* Returns: pool.
*/
tpool_t *tpool_create(size_t num);
/**
* tpool_destroy:
* @tp : Thread pool.
*
* Destory a thread pool
* The pool can be destroyed while there is outstanding work to process. All
* outstanding unprocessed work will be discareded. There may be a delay before
* this function returns because it will block for work that is processing to
* complete.
**/
void tpool_destroy(tpool_t *tp);
/**
* tpool_add_work:
* @tp : Thread pool.
* @func : Function the pool should call.
* @arg : Argument to pass to func.
*
* Add work to a thread pool.
*
* Returns: true if work was added, otherwise false.
**/
bool tpool_add_work(tpool_t *tp, thread_func_t func, void *arg);
/**
* tpool_wait:
* @tp Thread pool.
*
* Wait for all work in the pool to be completed.
*/
void tpool_wait(tpool_t *tp);
RETRO_END_DECLS
#endif
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