/**
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* \file
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* Threadpool for all concurrent GC work.
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*
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* Copyright (C) 2015 Xamarin Inc
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*
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* Licensed under the MIT license. See LICENSE file in the project root for full license information.
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*/
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#ifndef __MONO_SGEN_THREAD_POOL_H__
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#define __MONO_SGEN_THREAD_POOL_H__
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#include "mono/sgen/sgen-pointer-queue.h"
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#include "mono/utils/mono-threads.h"
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#define SGEN_THREADPOOL_MAX_NUM_THREADS 8
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#define SGEN_THREADPOOL_MAX_NUM_CONTEXTS 3
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typedef struct _SgenThreadPoolJob SgenThreadPoolJob;
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typedef struct _SgenThreadPoolContext SgenThreadPoolContext;
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typedef void (*SgenThreadPoolJobFunc) (void *thread_data, SgenThreadPoolJob *job);
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typedef void (*SgenThreadPoolThreadInitFunc) (void*);
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typedef void (*SgenThreadPoolIdleJobFunc) (void*);
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typedef gboolean (*SgenThreadPoolContinueIdleJobFunc) (void*, int);
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typedef gboolean (*SgenThreadPoolShouldWorkFunc) (void*);
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typedef gboolean (*SgenThreadPoolContinueIdleWaitFunc) (int, int*);
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struct _SgenThreadPoolJob {
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const char *name;
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SgenThreadPoolJobFunc func;
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size_t size;
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volatile gint32 state;
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};
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struct _SgenThreadPoolContext {
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/* Only accessed with the lock held. */
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SgenPointerQueue job_queue;
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SgenThreadPoolThreadInitFunc thread_init_func;
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SgenThreadPoolIdleJobFunc idle_job_func;
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SgenThreadPoolContinueIdleJobFunc continue_idle_job_func;
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SgenThreadPoolShouldWorkFunc should_work_func;
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void **thread_datas;
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int num_threads;
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};
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int sgen_thread_pool_create_context (int num_threads, SgenThreadPoolThreadInitFunc init_func, SgenThreadPoolIdleJobFunc idle_func, SgenThreadPoolContinueIdleJobFunc continue_idle_func, SgenThreadPoolShouldWorkFunc should_work_func, void **thread_datas);
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void sgen_thread_pool_start (void);
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void sgen_thread_pool_shutdown (void);
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SgenThreadPoolJob* sgen_thread_pool_job_alloc (const char *name, SgenThreadPoolJobFunc func, size_t size);
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/* This only needs to be called on jobs that are not enqueued. */
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void sgen_thread_pool_job_free (SgenThreadPoolJob *job);
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void sgen_thread_pool_job_enqueue (int context_id, SgenThreadPoolJob *job);
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/* This must only be called after the job has been enqueued. */
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void sgen_thread_pool_job_wait (int context_id, SgenThreadPoolJob *job);
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void sgen_thread_pool_idle_signal (int context_id);
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void sgen_thread_pool_idle_wait (int context_id, SgenThreadPoolContinueIdleWaitFunc continue_wait);
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void sgen_thread_pool_wait_for_all_jobs (int context_id);
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int sgen_thread_pool_is_thread_pool_thread (MonoNativeThreadId thread);
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#endif
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