imapext-2007
annotate src/osdep/tops-20/fs_t20.c @ 0:ada5e610ab86
imap-2007e
author | yuuji@gentei.org |
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date | Mon, 14 Sep 2009 15:17:45 +0900 |
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rev | line source |
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yuuji@0 | 1 /* ======================================================================== |
yuuji@0 | 2 * Copyright 1988-2006 University of Washington |
yuuji@0 | 3 * |
yuuji@0 | 4 * Licensed under the Apache License, Version 2.0 (the "License"); |
yuuji@0 | 5 * you may not use this file except in compliance with the License. |
yuuji@0 | 6 * You may obtain a copy of the License at |
yuuji@0 | 7 * |
yuuji@0 | 8 * http://www.apache.org/licenses/LICENSE-2.0 |
yuuji@0 | 9 * |
yuuji@0 | 10 * |
yuuji@0 | 11 * ======================================================================== |
yuuji@0 | 12 */ |
yuuji@0 | 13 |
yuuji@0 | 14 /* |
yuuji@0 | 15 * Program: Free storage management routines |
yuuji@0 | 16 * |
yuuji@0 | 17 * Author: Mark Crispin |
yuuji@0 | 18 * Networks and Distributed Computing |
yuuji@0 | 19 * Computing & Communications |
yuuji@0 | 20 * University of Washington |
yuuji@0 | 21 * Administration Building, AG-44 |
yuuji@0 | 22 * Seattle, WA 98195 |
yuuji@0 | 23 * Internet: MRC@CAC.Washington.EDU |
yuuji@0 | 24 * |
yuuji@0 | 25 * Date: 1 August 1988 |
yuuji@0 | 26 * Last Edited: 30 August 2006 |
yuuji@0 | 27 */ |
yuuji@0 | 28 |
yuuji@0 | 29 /* Get a block of free storage |
yuuji@0 | 30 * Accepts: size of desired block |
yuuji@0 | 31 * Returns: free storage block |
yuuji@0 | 32 */ |
yuuji@0 | 33 |
yuuji@0 | 34 void *fs_get (size_t size) |
yuuji@0 | 35 { |
yuuji@0 | 36 void *block = malloc (size ? size : (size_t) 1); |
yuuji@0 | 37 if (!block) fatal ("Out of memory"); |
yuuji@0 | 38 return (block); |
yuuji@0 | 39 } |
yuuji@0 | 40 |
yuuji@0 | 41 |
yuuji@0 | 42 /* Resize a block of free storage |
yuuji@0 | 43 * Accepts: ** pointer to current block |
yuuji@0 | 44 * new size |
yuuji@0 | 45 */ |
yuuji@0 | 46 |
yuuji@0 | 47 void fs_resize (void **block,size_t size) |
yuuji@0 | 48 { |
yuuji@0 | 49 if (!(*block = realloc (*block,size ? size : (size_t) 1))) |
yuuji@0 | 50 fatal ("Can't resize memory"); |
yuuji@0 | 51 } |
yuuji@0 | 52 |
yuuji@0 | 53 |
yuuji@0 | 54 /* Return a block of free storage |
yuuji@0 | 55 * Accepts: ** pointer to free storage block |
yuuji@0 | 56 */ |
yuuji@0 | 57 |
yuuji@0 | 58 void fs_give (void **block) |
yuuji@0 | 59 { |
yuuji@0 | 60 free (*block); |
yuuji@0 | 61 *block = NIL; |
yuuji@0 | 62 } |