[sgen] Split up concurrent sweep from worker logic

[mono.git] / mono / sgen / sgen-thread-pool.h

diff --git a/mono/sgen/sgen-thread-pool.h b/mono/sgen/sgen-thread-pool.h
index 4dcb3a9a14b76195c06f3ccaf396cdf67dd1e9df..1b48e4433f040137bf37e0368f6b126b17a63c4e 100644 (file)
--- a/mono/sgen/sgen-thread-pool.h
+++ b/mono/sgen/sgen-thread-pool.h
@@ -1,28 +1,27 @@
-/*
- * sgen-thread-pool.h: Threadpool for all concurrent GC work.
+/**
+ * \file
+ * Threadpool for all concurrent GC work.
  *
  * Copyright (C) 2015 Xamarin Inc
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License 2.0 as published by the Free Software Foundation;
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License 2.0 along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  */
 
 #ifndef __MONO_SGEN_THREAD_POOL_H__
 #define __MONO_SGEN_THREAD_POOL_H__
 
+#include "mono/sgen/sgen-pointer-queue.h"
+#include "mono/utils/mono-threads.h"
+
 typedef struct _SgenThreadPoolJob SgenThreadPoolJob;
+typedef struct _SgenThreadPool SgenThreadPool;
+typedef struct _SgenThreadPoolData SgenThreadPoolData;
 
 typedef void (*SgenThreadPoolJobFunc) (void *thread_data, SgenThreadPoolJob *job);
+typedef void (*SgenThreadPoolThreadInitFunc) (void*);
+typedef void (*SgenThreadPoolIdleJobFunc) (void*);
+typedef gboolean (*SgenThreadPoolContinueIdleJobFunc) (void*);
+typedef gboolean (*SgenThreadPoolShouldWorkFunc) (void*);
 
 struct _SgenThreadPoolJob {
        const char *name;
@@ -31,25 +30,49 @@ struct _SgenThreadPoolJob {
        volatile gint32 state;
 };
 
-typedef void (*SgenThreadPoolThreadInitFunc) (void*);
-typedef void (*SgenThreadPoolIdleJobFunc) (void*);
-typedef gboolean (*SgenThreadPoolContinueIdleJobFunc) (void);
+#define MAX_NUM_THREADS 8
+
+struct _SgenThreadPool {
+       mono_mutex_t lock;
+       mono_cond_t work_cond;
+       mono_cond_t done_cond;
+
+       int threads_num;
+       MonoNativeThreadId threads [MAX_NUM_THREADS];
+
+       /* Only accessed with the lock held. */
+       SgenPointerQueue job_queue;
+
+       SgenThreadPoolThreadInitFunc thread_init_func;
+       SgenThreadPoolIdleJobFunc idle_job_func;
+       SgenThreadPoolContinueIdleJobFunc continue_idle_job_func;
+       SgenThreadPoolShouldWorkFunc should_work_func;
+
+       volatile gboolean threadpool_shutdown;
+       volatile int threads_finished;
+};
+
+struct _SgenThreadPoolData {
+       SgenThreadPool *pool;
+};
+
+void sgen_thread_pool_init (SgenThreadPool *pool, int num_threads, SgenThreadPoolThreadInitFunc init_func, SgenThreadPoolIdleJobFunc idle_func, SgenThreadPoolContinueIdleJobFunc continue_idle_func, SgenThreadPoolShouldWorkFunc should_work_func, SgenThreadPoolData **thread_datas);
 
-void sgen_thread_pool_init (int num_threads, SgenThreadPoolThreadInitFunc init_func, SgenThreadPoolIdleJobFunc idle_func, SgenThreadPoolContinueIdleJobFunc continue_idle_func, void **thread_datas);
+void sgen_thread_pool_shutdown (SgenThreadPool *pool);
 
 SgenThreadPoolJob* sgen_thread_pool_job_alloc (const char *name, SgenThreadPoolJobFunc func, size_t size);
 /* This only needs to be called on jobs that are not enqueued. */
 void sgen_thread_pool_job_free (SgenThreadPoolJob *job);
 
-void sgen_thread_pool_job_enqueue (SgenThreadPoolJob *job);
+void sgen_thread_pool_job_enqueue (SgenThreadPool *pool, SgenThreadPoolJob *job);
 /* This must only be called after the job has been enqueued. */
-void sgen_thread_pool_job_wait (SgenThreadPoolJob *job);
+void sgen_thread_pool_job_wait (SgenThreadPool *pool, SgenThreadPoolJob *job);
 
-void sgen_thread_pool_idle_signal (void);
-void sgen_thread_pool_idle_wait (void);
+void sgen_thread_pool_idle_signal (SgenThreadPool *pool);
+void sgen_thread_pool_idle_wait (SgenThreadPool *pool);
 
-void sgen_thread_pool_wait_for_all_jobs (void);
+void sgen_thread_pool_wait_for_all_jobs (SgenThreadPool *pool);
 
-gboolean sgen_thread_pool_is_thread_pool_thread (MonoNativeThreadId thread);
+int sgen_thread_pool_is_thread_pool_thread (SgenThreadPool *pool, MonoNativeThreadId thread);
 
 #endif