Hash_DeleteTable.c
1.93 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
/*
* Hash_DeleteTable.c --
*
* Source code for the Hash_DeleteTable library procedure.
*
* Copyright 1988 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /root/leakn64/depot/rf/sw/bbplayer/simos/apps/unix/ethersim/common/Hash_DeleteTable.c,v 1.1.1.1 2002/05/29 01:09:09 blythe Exp $ SPRITE (Berkeley)";
#endif not lint
#include <hash.h>
#include <list.h>
#include <stdlib.h>
/*
*---------------------------------------------------------
*
* Hash_DeleteTable --
*
* This routine removes everything from a hash table
* and frees up the memory space it occupied (except for
* the space in the Hash_Table structure).
*
* Results:
* None.
*
* Side Effects:
* Lots of memory is freed up.
*
*---------------------------------------------------------
*/
void
Hash_DeleteTable(
Hash_Table *tablePtr /* Hash table whose entries are all to
* be freed. */
)
{
register List_Links *hashTableEnd;
register Hash_Entry *hashEntryPtr;
register List_Links *bucketPtr;
bucketPtr = tablePtr->bucketPtr;
hashTableEnd = &(bucketPtr[tablePtr->size]);
for (; bucketPtr < hashTableEnd; bucketPtr++) {
while (!List_IsEmpty(bucketPtr)) {
hashEntryPtr = (Hash_Entry *) List_First(bucketPtr);
List_Remove((List_Links *) hashEntryPtr);
free((Address) hashEntryPtr);
}
}
free((Address) tablePtr->bucketPtr);
/*
* Set up the hash table to cause memory faults on any future
* access attempts until re-initialization.
*/
tablePtr->bucketPtr = (List_Links *) NIL;
}