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Diffstat (limited to 'lib/libstand/zalloc_mem.h')
| -rw-r--r-- | lib/libstand/zalloc_mem.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/libstand/zalloc_mem.h b/lib/libstand/zalloc_mem.h new file mode 100644 index 0000000..c872da1 --- /dev/null +++ b/lib/libstand/zalloc_mem.h @@ -0,0 +1,55 @@ +/* + * This module derived from code donated to the FreeBSD Project by + * Matthew Dillon <dillon@backplane.com> + * + * Copyright (c) 1998 The FreeBSD Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * H/MEM.H + * + * Basic memory pool / memory node structures. + */ + +typedef struct MemNode { + struct MemNode *mr_Next; + iaddr_t mr_Bytes; +} MemNode; + +typedef struct MemPool { + void *mp_Base; + void *mp_End; + MemNode *mp_First; + iaddr_t mp_Size; + iaddr_t mp_Used; +} MemPool; + +#define MEMNODE_SIZE_MASK ((sizeof(MemNode) <= 8) ? 7 : 15) + +#define ZNOTE_FREE 0 +#define ZNOTE_REUSE 1 + |
