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Diffstat (limited to 'xf86drmHash.h')
-rw-r--r--xf86drmHash.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/xf86drmHash.h b/xf86drmHash.h
new file mode 100644
index 00000000..38fd84b7
--- /dev/null
+++ b/xf86drmHash.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
25 */
26
27#define HASH_SIZE 512 /* Good for about 100 entries */
28 /* If you change this value, you probably
29 have to change the HashHash hashing
30 function! */
31
32typedef struct HashBucket {
33 unsigned long key;
34 void *value;
35 struct HashBucket *next;
36} HashBucket, *HashBucketPtr;
37
38typedef struct HashTable {
39 unsigned long magic;
40 unsigned long entries;
41 unsigned long hits; /* At top of linked list */
42 unsigned long partials; /* Not at top of linked list */
43 unsigned long misses; /* Not in table */
44 HashBucketPtr buckets[HASH_SIZE];
45 int p0;
46 HashBucketPtr p1;
47} HashTable, *HashTablePtr;