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| Rev | Author | Line No. | Line |
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| 1408 | serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright 2006 Tungsten Graphics, Inc., Bismack, ND. USA. |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | * |
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| 27 | **************************************************************************/ |
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| 28 | /* |
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| 29 | * Simple open hash tab implementation. |
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| 30 | * |
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| 31 | * Authors: |
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| 32 | * Thomas Hellström |
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| 33 | */ |
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| 34 | |||
| 35 | #ifndef DRM_HASHTAB_H |
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| 36 | #define DRM_HASHTAB_H |
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| 37 | |||
| 38 | #include |
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| 39 | |||
| 40 | #define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member) |
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| 41 | |||
| 42 | struct drm_hash_item { |
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| 43 | struct hlist_node head; |
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| 44 | unsigned long key; |
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| 45 | }; |
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| 46 | |||
| 47 | struct drm_open_hash { |
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| 48 | struct hlist_head *table; |
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| 1964 | serge | 49 | u8 order; |
| 1408 | serge | 50 | }; |
| 51 | |||
| 52 | extern int drm_ht_create(struct drm_open_hash *ht, unsigned int order); |
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| 53 | extern int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item); |
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| 54 | extern int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item, |
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| 55 | unsigned long seed, int bits, int shift, |
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| 56 | unsigned long add); |
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| 57 | extern int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item); |
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| 58 | |||
| 59 | extern void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key); |
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| 60 | extern int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key); |
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| 61 | extern int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item); |
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| 62 | extern void drm_ht_remove(struct drm_open_hash *ht); |
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| 63 | |||
| 64 | |||
| 65 | #endif |