oskit/oskit-20020317/lmm/lmm_remove_free.c

44 lines
1.4 KiB
C
Executable File

/*
* Copyright (c) 1996, 1998 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
#include "lmm.h"
void lmm_remove_free(lmm_t *lmm, void *block, oskit_size_t block_size)
{
oskit_addr_t rstart = (oskit_addr_t)block;
oskit_addr_t rend = rstart + block_size;
assert(rend > rstart);
while (rstart < rend)
{
oskit_addr_t size;
lmm_flags_t flags;
void *ptr;
lmm_find_free(lmm, &rstart, &size, &flags);
assert(rstart >= (oskit_addr_t)block);
if ((size == 0) || (rstart >= rend))
break;
if (rstart + size > rend)
size = rend - rstart;
ptr = lmm_alloc_gen(lmm, size, flags, 0, 0,
rstart, size);
assert((oskit_addr_t)ptr == rstart);
}
}