| 1 | /* objalloc.h -- routines to allocate memory for objects
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| 2 | Copyright 1997, 2001 Free Software Foundation, Inc.
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| 3 | Written by Ian Lance Taylor, Cygnus Solutions.
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| 4 |
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| 5 | This program is free software; you can redistribute it and/or modify it
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| 6 | under the terms of the GNU General Public License as published by the
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| 7 | Free Software Foundation; either version 2, or (at your option) any
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| 8 | later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program; if not, write to the Free Software
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| 17 | Foundation, 59 Temple Place - Suite 330,
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| 18 | Boston, MA 02111-1307, USA. */
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| 19 |
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| 20 | #ifndef OBJALLOC_H
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| 21 | #define OBJALLOC_H
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| 22 |
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| 23 | #include "ansidecl.h"
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| 24 |
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| 25 | /* These routines allocate space for an object. The assumption is
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| 26 | that the object will want to allocate space as it goes along, but
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| 27 | will never want to free any particular block. There is a function
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| 28 | to free a block, which also frees all more recently allocated
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| 29 | blocks. There is also a function to free all the allocated space.
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| 30 |
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| 31 | This is essentially a specialization of obstacks. The main
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| 32 | difference is that a block may not be allocated a bit at a time.
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| 33 | Another difference is that these routines are always built on top
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| 34 | of malloc, and always pass an malloc failure back to the caller,
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| 35 | unlike more recent versions of obstacks. */
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| 36 |
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| 37 | /* This is what an objalloc structure looks like. Callers should not
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| 38 | refer to these fields, nor should they allocate these structure
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| 39 | themselves. Instead, they should only create them via
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