mono/utils/lock-free-array-queue.h

   1 /**
   2  * \file
   3  * A lock-free somewhat-queue that doesn't
   4  * require hazard pointers.
   5  *
   6  * (C) Copyright 2011 Xamarin Inc.
   7  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   8  */
   9 #ifndef __MONO_LOCK_FREE_ARRAY_QUEUE_H__
  10 #define __MONO_LOCK_FREE_ARRAY_QUEUE_H__
  11
  12 #include <glib.h>
  13 #include <mono/utils/mono-compiler.h>
  14 #include <mono/utils/mono-mmap.h>
  15
  16 typedef struct _MonoLockFreeArrayChunk MonoLockFreeArrayChunk;
  17
  18 typedef struct {
  19         size_t entry_size;
  20         MonoLockFreeArrayChunk *chunk_list;
  21         MonoMemAccountType account_type;
  22 } MonoLockFreeArray;
  23
  24 typedef struct {
  25         MonoLockFreeArray array;
  26         gint32 num_used_entries;
  27 } MonoLockFreeArrayQueue;
  28
  29 #define MONO_LOCK_FREE_ARRAY_INIT(entry_size, account_type)             { (entry_size), NULL, (account_type) }
  30 #define MONO_LOCK_FREE_ARRAY_QUEUE_INIT(entry_size, account_type)       { MONO_LOCK_FREE_ARRAY_INIT ((entry_size) + sizeof (gpointer), (account_type)), 0 }
  31
  32 gpointer mono_lock_free_array_nth (MonoLockFreeArray *arr, int index);
  33
  34 typedef gpointer (*MonoLockFreeArrayIterateFunc) (int index, gpointer entry_ptr, gpointer user_data);
  35 gpointer mono_lock_free_array_iterate (MonoLockFreeArray *arr, MonoLockFreeArrayIterateFunc func, gpointer user_data);
  36
  37 void mono_lock_free_array_cleanup (MonoLockFreeArray *arr);
  38
  39 void mono_lock_free_array_queue_push (MonoLockFreeArrayQueue *q, gpointer entry_data_ptr);
  40 gboolean mono_lock_free_array_queue_pop (MonoLockFreeArrayQueue *q, gpointer entry_data_ptr);
  41
  42 void mono_lock_free_array_queue_cleanup (MonoLockFreeArrayQueue *q);
  43
  44 #endif