Return to netbuf.h CVS log

Up to [Apple XNU] / XNU / bsd / net

Annotation of XNU/bsd/net/netbuf.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /* 
                     23:  * Copyright (C) 1990 by NeXT, Inc., All Rights Reserved
                     24:  *
                     25:  */
                     26: 
                     27: /* 
                     28:  * Network Buffer API (for kernel use only)
                     29:  *
                     30:  * HISTORY
                     31:  * 09-Apr-90  Bradley Taylor (btaylor) at NeXT, Inc.
                     32:  *     Created. 
                     33:  */
                     34: #ifndef _NETBUF_
                     35: #define _NETBUF_
                     36: 
                     37: typedef struct { char opaque[1]; } *netbuf_t;
                     38: 
                     39: #ifdef KERNEL
                     40: 
                     41: extern char *nb_map(netbuf_t nb);
                     42: extern netbuf_t nb_alloc(unsigned size);
                     43: extern netbuf_t nb_alloc_wrapper(void *data, unsigned size,
                     44:                                 void freefunc(void *), void *freefunc_arg);
                     45: 
                     46: extern void nb_free(netbuf_t nb);
                     47: extern void nb_free_wrapper(netbuf_t nb);
                     48: extern unsigned nb_size(netbuf_t nb);
                     49: extern int nb_read(netbuf_t nb, unsigned offset, unsigned size, void *target);
                     50: extern int nb_write(netbuf_t nb, unsigned offset, unsigned size, void *source);
                     51: extern int nb_shrink_top(netbuf_t nb, unsigned size);
                     52: extern int nb_grow_top(netbuf_t nb, unsigned size);
                     53: extern int nb_shrink_bot(netbuf_t nb, unsigned size);
                     54: extern int nb_grow_bot(netbuf_t nb, unsigned size);
                     55: 
                     56: #endif /* KERNEL */
                     57: #endif /* _NETBUF_ */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.