rcvbuf.h revision 1.1.2.3
1 1.1.2.3 yamt /* $NetBSD: rcvbuf.h,v 1.1.2.3 2014/05/22 11:39:55 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /* 4 1.1.2.2 yamt * Copyright (c) 1992 OMRON Corporation. 5 1.1.2.2 yamt * 6 1.1.2.2 yamt * This code is derived from software contributed to Berkeley by 7 1.1.2.2 yamt * OMRON Corporation. 8 1.1.2.2 yamt * 9 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 10 1.1.2.2 yamt * modification, are permitted provided that the following conditions 11 1.1.2.2 yamt * are met: 12 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 13 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 14 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 16 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 17 1.1.2.2 yamt * 3. All advertising materials mentioning features or use of this software 18 1.1.2.2 yamt * must display the following acknowledgement: 19 1.1.2.2 yamt * This product includes software developed by the University of 20 1.1.2.2 yamt * California, Berkeley and its contributors. 21 1.1.2.2 yamt * 4. Neither the name of the University nor the names of its contributors 22 1.1.2.2 yamt * may be used to endorse or promote products derived from this software 23 1.1.2.2 yamt * without specific prior written permission. 24 1.1.2.2 yamt * 25 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 1.1.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 1.1.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 1.1.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 1.1.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 1.1.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 1.1.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 1.1.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 1.1.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 1.1.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 1.1.2.2 yamt * SUCH DAMAGE. 36 1.1.2.2 yamt * 37 1.1.2.2 yamt * @(#)rcvbuf.h 8.1 (Berkeley) 6/10/93 38 1.1.2.2 yamt */ 39 1.1.2.2 yamt /* 40 1.1.2.2 yamt * Copyright (c) 1992, 1993 41 1.1.2.2 yamt * The Regents of the University of California. All rights reserved. 42 1.1.2.2 yamt * 43 1.1.2.2 yamt * This code is derived from software contributed to Berkeley by 44 1.1.2.2 yamt * OMRON Corporation. 45 1.1.2.2 yamt * 46 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 47 1.1.2.2 yamt * modification, are permitted provided that the following conditions 48 1.1.2.2 yamt * are met: 49 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 50 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 51 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 52 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 53 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 54 1.1.2.2 yamt * 3. Neither the name of the University nor the names of its contributors 55 1.1.2.2 yamt * may be used to endorse or promote products derived from this software 56 1.1.2.2 yamt * without specific prior written permission. 57 1.1.2.2 yamt * 58 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 1.1.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 1.1.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 1.1.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 1.1.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 1.1.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 1.1.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 1.1.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 1.1.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.1.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.1.2.2 yamt * SUCH DAMAGE. 69 1.1.2.2 yamt * 70 1.1.2.2 yamt * @(#)rcvbuf.h 8.1 (Berkeley) 6/10/93 71 1.1.2.2 yamt */ 72 1.1.2.2 yamt 73 1.1.2.2 yamt /* 74 1.1.2.2 yamt * rcvbuf.h -- receive buffer control structure definition 75 1.1.2.2 yamt * by A.Fujita, Dec-12-1992 76 1.1.2.2 yamt */ 77 1.1.2.2 yamt 78 1.1.2.2 yamt #define RBUF_SIZE 128 79 1.1.2.2 yamt 80 1.1.2.2 yamt struct rcvbuf { 81 1.1.2.2 yamt u_char * volatile rb_push; 82 1.1.2.2 yamt u_char * volatile rb_pop; 83 1.1.2.3 yamt u_char rb_buf[RBUF_SIZE + 4]; 84 1.1.2.2 yamt }; 85 1.1.2.2 yamt 86 1.1.2.3 yamt #define RBUF_INIT(n) \ 87 1.1.2.3 yamt do { \ 88 1.1.2.3 yamt rcvbuf[n].rb_pop = rcvbuf[n].rb_push = &rcvbuf[n].rb_buf[RBUF_SIZE]; \ 89 1.1.2.3 yamt } while (/* CONSTCOND */0) 90 1.1.2.2 yamt 91 1.1.2.2 yamt #define PUSH_RBUF(n, c) \ 92 1.1.2.2 yamt do { \ 93 1.1.2.3 yamt *(--rcvbuf[n].rb_push) = (c); \ 94 1.1.2.2 yamt if (rcvbuf[n].rb_push == rcvbuf[n].rb_buf) \ 95 1.1.2.2 yamt rcvbuf[n].rb_push = &rcvbuf[n].rb_buf[RBUF_SIZE]; \ 96 1.1.2.2 yamt } while (/* CONSTCOND */0) 97 1.1.2.2 yamt 98 1.1.2.2 yamt #define POP_RBUF(n, c) \ 99 1.1.2.2 yamt do { \ 100 1.1.2.3 yamt (c) = *(--rcvbuf[n].rb_pop); \ 101 1.1.2.2 yamt if (rcvbuf[n].rb_pop == rcvbuf[n].rb_buf) \ 102 1.1.2.2 yamt rcvbuf[n].rb_pop = &rcvbuf[n].rb_buf[RBUF_SIZE]; \ 103 1.1.2.3 yamt } while (/* CONSTCOND */0) 104 1.1.2.2 yamt 105 1.1.2.3 yamt #define RBUF_EMPTY(n) (rcvbuf[n].rb_push == rcvbuf[n].rb_pop) 106 1.1.2.2 yamt 107 1.1.2.2 yamt extern struct rcvbuf rcvbuf[]; 108
Indexes created Thu Oct 02 14:10:14 GMT 2025