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2 | pj | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Paolo Gai <pj@gandalf.sssup.it> |
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10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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11 | * Luca Abeni <luca@gandalf.sssup.it> |
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12 | * (see the web pages for full authors list) |
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13 | * |
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14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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15 | * |
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16 | * http://www.sssup.it |
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17 | * http://retis.sssup.it |
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18 | * http://shark.sssup.it |
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19 | */ |
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20 | |||
21 | /** |
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22 | ------------ |
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614 | giacomo | 23 | CVS : $Id: free.c,v 1.2 2004-05-07 10:09:10 giacomo Exp $ |
2 | pj | 24 | |
25 | File: $File$ |
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614 | giacomo | 26 | Revision: $Revision: 1.2 $ |
27 | Last update: $Date: 2004-05-07 10:09:10 $ |
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2 | pj | 28 | ------------ |
29 | |||
30 | **/ |
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31 | |||
32 | /* |
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33 | * Copyright (C) 2000 Paolo Gai |
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34 | * |
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35 | * This program is free software; you can redistribute it and/or modify |
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36 | * it under the terms of the GNU General Public License as published by |
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37 | * the Free Software Foundation; either version 2 of the License, or |
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38 | * (at your option) any later version. |
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39 | * |
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40 | * This program is distributed in the hope that it will be useful, |
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41 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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42 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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43 | * GNU General Public License for more details. |
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44 | * |
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45 | * You should have received a copy of the GNU General Public License |
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46 | * along with this program; if not, write to the Free Software |
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47 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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48 | * |
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49 | */ |
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50 | |||
51 | #include <kernel/func.h> |
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52 | #include <sys/types.h> |
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53 | #include <string.h> |
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54 | #include <stdlib.h> |
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55 | |||
56 | void free(void *ptr) |
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57 | { |
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58 | if (ptr) { |
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59 | char *p = ptr; |
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60 | SYS_FLAGS f; |
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61 | |||
62 | f = kern_fsave(); |
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63 | //kern_cli(); |
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64 | p -= sizeof(size_t); |
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614 | giacomo | 65 | if (*(size_t *)p == 0) { |
66 | kern_frestore(f); |
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67 | return; |
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68 | } |
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2 | pj | 69 | kern_free(p,*((size_t *)p)); |
70 | //kern_sti(); |
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71 | kern_frestore(f); |
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72 | } |
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73 | } |