summaryrefslogtreecommitdiff
path: root/imap/src/osdep/vms/fs_vms.c
blob: 03908328990cd9f3d8e66826a7cda17afa40ae66 (plain)
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
/* ========================================================================
 * Copyright 1988-2006 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * 
 * ========================================================================
 */

/*
 * Program:	Free storage management routines
 *
 * Author:	Mark Crispin
 *		Networks and Distributed Computing
 *		Computing & Communications
 *		University of Washington
 *		Administration Building, AG-44
 *		Seattle, WA  98195
 *		Internet: MRC@CAC.Washington.EDU
 *
 * Date:	1 August 1988
 * Last Edited:	30 August 2006
 */

/* Get a block of free storage
 * Accepts: size of desired block
 * Returns: free storage block
 */

void *fs_get (size_t size)
{
  void *block = malloc (size ? size : (size_t) 1);
  if (!block) fatal ("Out of memory");
  return (block);
}


/* Resize a block of free storage
 * Accepts: ** pointer to current block
 *	    new size
 */

void fs_resize (void **block,size_t size)
{
  if (!(*block = realloc (*block,size ? size : (size_t) 1)))
    fatal ("Can't resize memory");
}


/* Return a block of free storage
 * Accepts: ** pointer to free storage block
 */

void fs_give (void **block)
{
  free (*block);
  *block = NIL;
}