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libretroadmin
cf9d102864
The libretro-common submodule pinned the standalone repository at 76a3d54. It is replaced by an in-tree copy of RetroArch master (b655a20) holding only what the core uses: the VFS, file, string, encoding, compat and time sources it already built, the headers they and the core include, the threading set - rthreads, retro_atomic, retro_spsc and retro_waitable_spsc, mpsc_stack, retro_triple_buffer, retro_eventcount, retro_asym_eventcount, retro_procbarrier and tpool, with features_cpu and rstrtod, which they need - and the codecs that replace the bundled zlib, zstd, libchdr, libzip and libpng: rinflate and rdeflate, rzstd, rchd with its LZMA and FLAC decoders, rzip_archive, rpng and crc32. stdstring.c, which nothing calls, is no longer built. The threading sources are always built, by both the static Makefile and CMake; the VFS set stays behind HAVE_LIBRETRO_VFS as before. The codecs are built by the change that switches the core over to them.
127 lines
3.8 KiB
C
127 lines
3.8 KiB
C
/*
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* Copyright (c) 2010-2020 The RetroArch team
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* Copyright (c) 2017 John Schember <john@nachtimwald.com>
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (tpool.h).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE
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*/
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#ifndef __LIBRETRO_SDK_TPOOL_H__
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#define __LIBRETRO_SDK_TPOOL_H__
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#include <retro_common_api.h>
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#include <stddef.h>
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#include <boolean.h>
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#include <retro_inline.h>
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#include <retro_miscellaneous.h>
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RETRO_BEGIN_DECLS
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struct tpool;
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typedef struct tpool tpool_t;
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/**
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* (*thread_func_t):
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* @arg : Argument.
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*
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* Callback function that the pool will call to do work.
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**/
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typedef void (*thread_func_t)(void *arg);
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/**
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* tpool_create:
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* @num : Number of threads the pool should have.
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* If 0 defaults to 2.
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*
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* Create a thread pool.
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*
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* Returns: pool.
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*/
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tpool_t *tpool_create(size_t num);
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/**
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* tpool_create_with_stack_size:
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* @num : Number of threads the pool should have.
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* If 0 defaults to 2.
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* @stack_size : Stack size of each thread in bytes; 0 for the
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* platform default, as tpool_create.
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*
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* Create a thread pool whose threads have a stack of the given size,
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* for work whose depth is known rather than whatever the platform's
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* default happens to be.
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*
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* Returns: pool.
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*/
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tpool_t *tpool_create_with_stack_size(size_t num, size_t stack_size);
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/**
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* tpool_destroy:
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* @tp : Thread pool.
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*
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* Destroy a thread pool
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* The pool can be destroyed while there is outstanding work to process. All
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* outstanding unprocessed work will be discarded. There may be a delay before
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* this function returns because it will block for work that is processing to
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* complete.
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**/
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void tpool_destroy(tpool_t *tp);
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/**
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* tpool_add_work:
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* @tp : Thread pool.
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* @func : Function the pool should call.
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* @arg : Argument to pass to func.
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*
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* Add work to a thread pool.
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*
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* Returns: true if work was added, otherwise false.
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**/
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bool tpool_add_work(tpool_t *tp, thread_func_t func, void *arg);
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/**
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* tpool_wait:
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* @tp Thread pool.
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*
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* Wait for all work in the pool to be completed.
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*/
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/**
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* tpool_help:
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* @tp : the pool.
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*
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* Runs the work at the head of the queue on the calling thread, if
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* there is any, and returns whether it did. For a thread that would
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* otherwise sleep until the pool has done something: instead of
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* waiting it takes the oldest job itself. The head is taken, as a
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* worker takes it, so a job depending only on jobs posted before it -
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* a picture on the pictures it predicts from - never waits on one
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* still queued.
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*/
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bool tpool_help(tpool_t *tp);
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void tpool_wait(tpool_t *tp);
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RETRO_END_DECLS
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#endif
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